[469] | 1 | ///////////////////////////////////////////////////////////////////////////////////////// |
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[407] | 2 | // File : ksh.c |
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| 3 | // Date : October 2017 |
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| 4 | // Author : Alain Greiner |
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[469] | 5 | ///////////////////////////////////////////////////////////////////////////////////////// |
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[457] | 6 | // This application implements a minimal shell for ALMOS-MKH. |
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| 7 | // |
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[636] | 8 | // This user process contains two POSIX threads: |
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[446] | 9 | // - the "main" thread contains the infinite loop implementing |
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[574] | 10 | // the children processes termination monitoring, using the wait() syscall. |
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[469] | 11 | // - the "interactive" thread contains the infinite loop implementing the command |
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| 12 | // interpreter attached to the TXT terminal, and handling one KSH command |
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| 13 | // per iteration. |
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[457] | 14 | // |
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[469] | 15 | // The children processes are created by the <load> command, and are |
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[624] | 16 | // attached to the same TXT terminal as the parent KSH process. |
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[626] | 17 | // A child process can be launched in foreground or in background: |
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[624] | 18 | // . when the child process is launched in foreground, the KSH process loses |
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[469] | 19 | // the TXT terminal ownership, that is transfered to the child process. |
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[624] | 20 | // . when the child process is launched in background, the KSH process keeps |
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[469] | 21 | // the TXT terminal ownership. |
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| 22 | // |
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[619] | 23 | // We use a semaphore to synchronize the two KSH threads. After each command |
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| 24 | // completion, the interactive thread check the TXT ownership (with a sem_wait), |
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| 25 | // and blocks, if the KSH process loosed the TXT ownership (after a load, |
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| 26 | // or for any other cause). It is unblocked with the following policy: |
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[469] | 27 | // . if the command is "not a load", the semaphore is incremented by the |
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[619] | 28 | // cmd_***() function when the command is completed, to get the next command |
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| 29 | // in the while loop. |
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[469] | 30 | // . if the command is a "load without &", the TXT is given to the NEW process by the |
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| 31 | // execve() syscall, and is released to the KSH process when NEW process terminates. |
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| 32 | // The KSH process is notified and the KSH main() function increments the semahore |
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| 33 | // to allow the KSH interactive() function to handle commands. |
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| 34 | // . if the command is a "load with &", the cmd_load() function returns the TXT |
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| 35 | // to the KSH process and increment the semaphore, when the parent KSH process |
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| 36 | // returns from the fork() syscall. |
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| 37 | ///////////////////////////////////////////////////////////////////////////////////////// |
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[230] | 38 | |
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| 39 | #include <stdio.h> |
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| 40 | #include <stdlib.h> |
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| 41 | #include <string.h> |
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[444] | 42 | #include <sys/wait.h> |
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| 43 | #include <signal.h> |
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| 44 | #include <unistd.h> |
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[611] | 45 | #include <dirent.h> |
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[445] | 46 | #include <almosmkh.h> |
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[457] | 47 | #include <semaphore.h> |
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[588] | 48 | #include <hal_macros.h> |
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[596] | 49 | #include <sys/stat.h> |
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| 50 | #include <sys/mman.h> |
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| 51 | #include <fcntl.h> |
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[230] | 52 | |
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[407] | 53 | #define CMD_MAX_SIZE (256) // max number of characters in one command |
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[436] | 54 | #define LOG_DEPTH (32) // max number of registered commands |
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[407] | 55 | #define MAX_ARGS (32) // max number of arguments in a command |
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[625] | 56 | #define PATH_MAX_SIZE (256) // max number of characters in a pathname |
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[230] | 57 | |
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[611] | 58 | #define DEBUG_MAIN 0 |
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[619] | 59 | #define DEBUG_INTER 0 |
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[625] | 60 | #define DEBUG_EXECUTE 0 |
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[624] | 61 | #define DEBUG_CMD_CAT 0 |
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[611] | 62 | #define DEBUG_CMD_CP 0 |
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| 63 | #define DEBUG_CMD_LOAD 0 |
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| 64 | #define DEBUG_CMD_LS 0 |
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[619] | 65 | #define DEBUG_CMD_PS 0 |
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[457] | 66 | |
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[469] | 67 | ////////////////////////////////////////////////////////////////////////////////////////// |
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[407] | 68 | // Structures |
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[469] | 69 | ////////////////////////////////////////////////////////////////////////////////////////// |
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[230] | 70 | |
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[407] | 71 | // one entry in the registered commands array |
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| 72 | typedef struct log_entry_s |
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| 73 | { |
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| 74 | char buf[CMD_MAX_SIZE]; |
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| 75 | unsigned int count; |
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| 76 | } |
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| 77 | log_entry_t; |
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[230] | 78 | |
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[407] | 79 | // one entry in the supported command types array |
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| 80 | typedef struct ksh_cmd_s |
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| 81 | { |
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| 82 | char * name; |
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| 83 | char * desc; |
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| 84 | void (*fn)( int , char ** ); |
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| 85 | } |
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| 86 | ksh_cmd_t; |
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| 87 | |
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| 88 | |
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[469] | 89 | ////////////////////////////////////////////////////////////////////////////////////////// |
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[230] | 90 | // Global Variables |
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[469] | 91 | ////////////////////////////////////////////////////////////////////////////////////////// |
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[230] | 92 | |
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[625] | 93 | ksh_cmd_t command[]; // array of supported commands |
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[230] | 94 | |
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[625] | 95 | log_entry_t log_entries[LOG_DEPTH]; // array of registered commands |
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[230] | 96 | |
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[625] | 97 | unsigned int ptw; // write pointer in log_entries[] |
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| 98 | unsigned int ptr; // read pointer in log_entries[] |
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[230] | 99 | |
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[625] | 100 | pthread_attr_t attr; // interactive thread attributes |
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[446] | 101 | |
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[625] | 102 | sem_t semaphore; // block interactive thread when zero |
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[457] | 103 | |
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[625] | 104 | pthread_t trdid; // interactive thread identifier |
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| 105 | |
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| 106 | char pathname[PATH_MAX_SIZE]; // pathname for a file |
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| 107 | |
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| 108 | char pathnew[PATH_MAX_SIZE]; // used by the rename command |
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[619] | 109 | |
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[635] | 110 | char string[128]; // used by snprintf() for debug |
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| 111 | |
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[469] | 112 | ////////////////////////////////////////////////////////////////////////////////////////// |
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[230] | 113 | // Shell Commands |
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[469] | 114 | ////////////////////////////////////////////////////////////////////////////////////////// |
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[230] | 115 | |
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[407] | 116 | ///////////////////////////////////////////// |
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| 117 | static void cmd_cat( int argc , char **argv ) |
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[230] | 118 | { |
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[611] | 119 | struct stat st; |
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[596] | 120 | int fd; |
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| 121 | int size; |
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| 122 | char * buf; |
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[230] | 123 | |
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[619] | 124 | #if DEBUG_CMD_CAT |
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[635] | 125 | snprintf( string , 128 , "[ksh] enter %s" , __FUNCTION__); |
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| 126 | display_string( string ); |
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[619] | 127 | #endif |
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| 128 | |
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[407] | 129 | if (argc != 2) |
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| 130 | { |
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[409] | 131 | printf(" usage: cat pathname\n"); |
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[623] | 132 | |
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| 133 | sem_post( &semaphore ); |
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| 134 | return; |
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[596] | 135 | } |
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[407] | 136 | |
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[625] | 137 | strcpy( pathname , argv[1] ); |
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[230] | 138 | |
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[635] | 139 | #if DEBUG_CMD_CAT |
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| 140 | snprintf( string , 128 , "[ksh] in %s : after strcpy" , __FUNCTION__ ); |
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| 141 | display_string( string ); |
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| 142 | #endif |
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| 143 | |
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[596] | 144 | // open the file |
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[625] | 145 | fd = open( pathname , O_RDONLY , 0 ); |
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[596] | 146 | if (fd < 0) |
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| 147 | { |
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[625] | 148 | printf(" error: cannot open file <%s>\n", pathname ); |
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[623] | 149 | |
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| 150 | sem_post( &semaphore ); |
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| 151 | return; |
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[596] | 152 | } |
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[407] | 153 | |
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[611] | 154 | #if DEBUG_CMD_CAT |
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[635] | 155 | snprintf( string , 128 , "[ksh] %s : file %s open", __FUNCTION__, pathname ); |
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[619] | 156 | display_string( string ); |
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[596] | 157 | #endif |
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| 158 | |
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| 159 | // get file stats |
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[625] | 160 | if ( stat( pathname , &st ) == -1) |
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[407] | 161 | { |
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[625] | 162 | printf(" error: cannot stat <%s>\n", pathname ); |
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[623] | 163 | |
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| 164 | close(fd); |
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| 165 | sem_post( &semaphore ); |
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| 166 | return; |
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[596] | 167 | } |
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[230] | 168 | |
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[596] | 169 | if ( S_ISDIR(st.st_mode) ) |
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[407] | 170 | { |
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[625] | 171 | printf(" error: <%s> is a directory\n", pathname ); |
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[623] | 172 | |
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| 173 | close(fd); |
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| 174 | sem_post( &semaphore ); |
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| 175 | return; |
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[596] | 176 | } |
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[230] | 177 | |
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[596] | 178 | // get file size |
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| 179 | size = st.st_size; |
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[230] | 180 | |
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[611] | 181 | #if DEBUG_CMD_CAT |
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[635] | 182 | snprintf( string , 128 , "[ksh] %s : size = %d", __FUNCTION__, size ); |
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[619] | 183 | display_string( string ); |
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[596] | 184 | #endif |
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[230] | 185 | |
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[623] | 186 | if( size == 0 ) |
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| 187 | { |
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[625] | 188 | printf(" error: size = 0 for <%s>\n", pathname ); |
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[623] | 189 | |
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| 190 | close(fd); |
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| 191 | sem_post( &semaphore ); |
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| 192 | return; |
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| 193 | } |
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| 194 | |
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| 195 | // mapping type is MAP_FILE when MAP_ANON and MAP_REMOTE are not specified |
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[596] | 196 | buf = mmap( NULL , size , PROT_READ|PROT_WRITE , MAP_PRIVATE , fd , 0 ); |
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[230] | 197 | |
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[596] | 198 | if ( buf == NULL ) |
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| 199 | { |
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[625] | 200 | printf(" error: cannot map file <%s>\n", pathname ); |
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[623] | 201 | |
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| 202 | close(fd); |
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| 203 | sem_post( &semaphore ); |
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| 204 | return; |
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[596] | 205 | } |
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| 206 | |
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[611] | 207 | #if DEBUG_CMD_CAT |
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[635] | 208 | snprintf( string , 128 , "[ksh] %s : maped file %d to buffer %x", __FUNCTION__, fd , buf ); |
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[619] | 209 | display_string( string ); |
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[596] | 210 | #endif |
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| 211 | |
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| 212 | // display the file content on TXT terminal |
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| 213 | write( 1 , buf , size ); |
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| 214 | |
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[623] | 215 | // unmap te file |
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| 216 | if( munmap( buf , size ) ) |
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| 217 | { |
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[625] | 218 | printf(" error: cannot unmap file <%s>\n", pathname ); |
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[623] | 219 | } |
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[596] | 220 | |
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[623] | 221 | #if DEBUG_CMD_CAT |
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[635] | 222 | snprintf( string , 128 , "[ksh] %s : unmaped file %d from buffer %x", __FUNCTION__, fd , buf ); |
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[623] | 223 | display_string( string ); |
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| 224 | #endif |
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[596] | 225 | |
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[623] | 226 | // close the file |
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| 227 | if( close( fd ) ) |
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| 228 | { |
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[625] | 229 | printf(" error: cannot close file <%s>\n", pathname ); |
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[623] | 230 | } |
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[596] | 231 | |
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[457] | 232 | // release semaphore to get next command |
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| 233 | sem_post( &semaphore ); |
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| 234 | |
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[407] | 235 | } // end cmd_cat() |
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| 236 | |
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| 237 | //////////////////////////////////////////// |
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| 238 | static void cmd_cd( int argc , char **argv ) |
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| 239 | { |
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| 240 | if (argc != 2) |
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| 241 | { |
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[409] | 242 | printf(" usage: cd pathname\n"); |
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[407] | 243 | } |
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[596] | 244 | else |
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| 245 | { |
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[625] | 246 | strcpy( pathname , argv[1] ); |
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[407] | 247 | |
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[610] | 248 | // call the relevant syscall |
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[625] | 249 | if( chdir( pathname ) ) |
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[610] | 250 | { |
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[625] | 251 | printf(" error: cannot found <%s> directory\n", pathname ); |
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[610] | 252 | } |
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[596] | 253 | } |
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[407] | 254 | |
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[457] | 255 | // release semaphore to get next command |
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| 256 | sem_post( &semaphore ); |
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[407] | 257 | |
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| 258 | } // end cmd_cd() |
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| 259 | |
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| 260 | ///////////////////////////////////////// |
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[230] | 261 | static void cmd_cp(int argc, char **argv) |
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| 262 | { |
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[611] | 263 | int src_fd; |
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| 264 | int dst_fd; |
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| 265 | int size; // source file size |
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| 266 | int bytes; // number of transfered bytes |
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| 267 | char buf[4096]; |
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| 268 | struct stat st; |
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[230] | 269 | |
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[619] | 270 | #if DEBUG_CMD_CP |
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[635] | 271 | snprintf( string , 128 , "[ksh] enter %s" , __FUNCTION__); |
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| 272 | display_string( string ); |
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[619] | 273 | #endif |
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| 274 | |
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[407] | 275 | if (argc != 3) |
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| 276 | { |
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[596] | 277 | src_fd = -1; |
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| 278 | dst_fd = -1; |
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[409] | 279 | printf(" usage: cp src_pathname dst_pathname\n"); |
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[611] | 280 | goto cmd_cp_exit; |
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[230] | 281 | } |
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| 282 | |
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[596] | 283 | // open the src file |
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[625] | 284 | strcpy( pathname , argv[1] ); |
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| 285 | src_fd = open( pathname , O_RDONLY , 0 ); |
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[230] | 286 | |
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[596] | 287 | if ( src_fd < 0 ) |
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| 288 | { |
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| 289 | dst_fd = -1; |
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[625] | 290 | printf(" error: cannot open <%s>\n", argv[1] ); |
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[611] | 291 | goto cmd_cp_exit; |
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[596] | 292 | } |
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[230] | 293 | |
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[611] | 294 | #if DEBUG_CMD_CP |
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[635] | 295 | snprintf( string , 128 , "[ksh] %s : file %s open", __FUNCTION__, argv[1] ); |
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[619] | 296 | display_string( string ); |
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[610] | 297 | #endif |
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| 298 | |
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[596] | 299 | // get file stats |
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[625] | 300 | if ( stat( pathname , &st ) ) |
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[596] | 301 | { |
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| 302 | dst_fd = -1; |
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[625] | 303 | printf(" error: cannot stat <%s>\n", argv[1] ); |
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[611] | 304 | goto cmd_cp_exit; |
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[596] | 305 | } |
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| 306 | |
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[611] | 307 | #if DEBUG_CMD_CP |
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[635] | 308 | snprintf( string , 128 , "[ksh] %s : got stats for %s", __FUNCTION__, argv[1] ); |
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[619] | 309 | display_string( string ); |
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[610] | 310 | #endif |
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| 311 | |
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[596] | 312 | if ( S_ISDIR(st.st_mode) ) |
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| 313 | { |
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| 314 | dst_fd = -1; |
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[625] | 315 | printf(" error: <%s> is a directory\n", argv[1] ); |
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[611] | 316 | goto cmd_cp_exit; |
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[230] | 317 | } |
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[596] | 318 | |
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| 319 | // get src file size |
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[230] | 320 | size = st.st_size; |
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| 321 | |
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[407] | 322 | // open the dst file |
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[625] | 323 | strcpy( pathname , argv[2] ); |
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| 324 | dst_fd = open( pathname , O_CREAT|O_TRUNC|O_RDWR , 0 ); |
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[596] | 325 | |
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| 326 | if ( dst_fd < 0 ) |
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| 327 | { |
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[625] | 328 | printf(" error: cannot open <%s>\n", argv[2] ); |
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[611] | 329 | goto cmd_cp_exit; |
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[230] | 330 | } |
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[596] | 331 | |
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[611] | 332 | #if DEBUG_CMD_CP |
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[635] | 333 | snprintf( string , 128 , "[ksh] %s : file %s open", __FUNCTION__, argv[2] ); |
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[619] | 334 | display_string( string ); |
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[610] | 335 | #endif |
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| 336 | |
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[625] | 337 | if ( stat( pathname , &st ) ) |
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[596] | 338 | { |
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[625] | 339 | printf(" error: cannot stat <%s>\n", argv[2] ); |
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[611] | 340 | goto cmd_cp_exit; |
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[230] | 341 | } |
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[596] | 342 | |
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[611] | 343 | #if DEBUG_CMD_CP |
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[635] | 344 | snprintf( string , 128 , "[ksh] %s : got stats for %s", __FUNCTION__, argv[2] ); |
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[619] | 345 | display_string( string ); |
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[610] | 346 | #endif |
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| 347 | |
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[596] | 348 | if ( S_ISDIR(st.st_mode ) ) |
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| 349 | { |
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[625] | 350 | printf(" error: <%s> is a directory\n", argv[2] ); |
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[611] | 351 | goto cmd_cp_exit; |
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[230] | 352 | } |
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| 353 | |
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[596] | 354 | bytes = 0; |
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| 355 | |
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| 356 | while (bytes < size) |
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[230] | 357 | { |
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[608] | 358 | int len = ((size - bytes) < 4096) ? (size - bytes) : 4096; |
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[230] | 359 | |
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[407] | 360 | // read the source |
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[608] | 361 | if ( read( src_fd , buf , len ) != len ) |
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[596] | 362 | { |
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[625] | 363 | printf(" error: cannot read from file <%s>\n", argv[1] ); |
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[611] | 364 | goto cmd_cp_exit; |
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[230] | 365 | } |
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| 366 | |
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[611] | 367 | #if DEBUG_CMD_CP |
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[635] | 368 | snprintf( string , 128 , "[ksh] %s : read %d bytes from %s", __FUNCTION__, len, argv[1] ); |
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[619] | 369 | display_string( string ); |
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[610] | 370 | #endif |
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| 371 | |
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[407] | 372 | // write to the destination |
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[608] | 373 | if ( write( dst_fd , buf , len ) != len ) |
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[596] | 374 | { |
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[625] | 375 | printf(" error: cannot write to file <%s>\n", argv[2] ); |
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[611] | 376 | goto cmd_cp_exit; |
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[230] | 377 | } |
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| 378 | |
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[611] | 379 | #if DEBUG_CMD_CP |
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[635] | 380 | snprintf( string , 128 , "[ksh] %s : write %d bytes to %s", __FUNCTION__, len, argv[2] ); |
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[619] | 381 | display_string( string ); |
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[610] | 382 | #endif |
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| 383 | |
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[608] | 384 | bytes += len; |
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[230] | 385 | } |
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| 386 | |
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[611] | 387 | cmd_cp_exit: |
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[596] | 388 | |
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[407] | 389 | if (src_fd >= 0) close(src_fd); |
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| 390 | if (dst_fd >= 0) close(dst_fd); |
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[230] | 391 | |
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[457] | 392 | // release semaphore to get next command |
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| 393 | sem_post( &semaphore ); |
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| 394 | |
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[407] | 395 | } // end cmd_cp() |
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| 396 | |
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[436] | 397 | ///////////////////////////////////////////////// |
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| 398 | static void cmd_display( int argc , char **argv ) |
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| 399 | { |
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[596] | 400 | if( argc < 2 ) |
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[436] | 401 | { |
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[640] | 402 | printf(" usage: display vmm cxy pid mapping\n" |
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[626] | 403 | " display sched cxy lid\n" |
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[611] | 404 | " display process cxy\n" |
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| 405 | " display txt txtid\n" |
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| 406 | " display vfs\n" |
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| 407 | " display chdev\n" |
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| 408 | " display dqdt\n" |
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[626] | 409 | " display locks pid trdid\n" |
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[623] | 410 | " display barrier pid\n" |
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[626] | 411 | " display mapper path page nbytes\n" |
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| 412 | " display fat page entries\n" |
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| 413 | " display fat cxy 0\n"); |
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[596] | 414 | } |
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| 415 | //////////////////////////////////// |
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| 416 | else if( strcmp( argv[1] , "vmm" ) == 0 ) |
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| 417 | { |
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[640] | 418 | if( argc != 5 ) |
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[436] | 419 | { |
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[640] | 420 | printf(" usage: display vmm cxy pid mapping\n"); |
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[436] | 421 | } |
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[596] | 422 | else |
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| 423 | { |
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| 424 | unsigned int cxy = atoi(argv[2]); |
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| 425 | unsigned int pid = atoi(argv[3]); |
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[640] | 426 | unsigned int map = atoi(argv[4]); |
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[436] | 427 | |
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[640] | 428 | if( display_vmm( cxy , pid , map ) ) |
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[596] | 429 | { |
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| 430 | printf(" error: no process %x in cluster %x\n", pid , cxy ); |
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| 431 | } |
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[436] | 432 | } |
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| 433 | } |
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[596] | 434 | /////////////////////////////////////////// |
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[436] | 435 | else if( strcmp( argv[1] , "sched" ) == 0 ) |
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| 436 | { |
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| 437 | if( argc != 4 ) |
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| 438 | { |
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| 439 | printf(" usage: display sched cxy lid\n"); |
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| 440 | } |
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[596] | 441 | else |
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| 442 | { |
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| 443 | unsigned int cxy = atoi(argv[2]); |
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| 444 | unsigned int lid = atoi(argv[3]); |
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[436] | 445 | |
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[596] | 446 | if( display_sched( cxy , lid ) ) |
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| 447 | { |
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| 448 | printf(" error: illegal arguments cxy = %x / lid = %d\n", cxy, lid ); |
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| 449 | } |
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[436] | 450 | } |
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| 451 | } |
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[596] | 452 | ///////////////////////////////////////////// |
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[436] | 453 | else if( strcmp( argv[1] , "process" ) == 0 ) |
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| 454 | { |
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| 455 | if( argc != 3 ) |
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| 456 | { |
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| 457 | printf(" usage: display process cxy\n"); |
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| 458 | } |
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[596] | 459 | else |
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| 460 | { |
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| 461 | unsigned int cxy = atoi(argv[2]); |
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[436] | 462 | |
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[596] | 463 | if( display_cluster_processes( cxy , 0 ) ) |
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| 464 | { |
---|
| 465 | printf(" error: illegal argument cxy = %x\n", cxy ); |
---|
| 466 | } |
---|
[436] | 467 | } |
---|
| 468 | } |
---|
[596] | 469 | ///////////////////////////////////////// |
---|
[436] | 470 | else if( strcmp( argv[1] , "txt" ) == 0 ) |
---|
| 471 | { |
---|
| 472 | if( argc != 3 ) |
---|
| 473 | { |
---|
| 474 | printf(" usage: display txt txt_id\n"); |
---|
| 475 | } |
---|
[596] | 476 | else |
---|
| 477 | { |
---|
| 478 | unsigned int txtid = atoi(argv[2]); |
---|
[436] | 479 | |
---|
[596] | 480 | if( display_txt_processes( txtid ) ) |
---|
| 481 | { |
---|
| 482 | printf(" error: illegal argument txtid = %d\n", txtid ); |
---|
| 483 | } |
---|
[436] | 484 | } |
---|
| 485 | } |
---|
[596] | 486 | ///////////////////////////////////////// |
---|
[436] | 487 | else if( strcmp( argv[1] , "vfs" ) == 0 ) |
---|
| 488 | { |
---|
| 489 | if( argc != 2 ) |
---|
| 490 | { |
---|
| 491 | printf(" usage: display vfs\n"); |
---|
| 492 | } |
---|
[596] | 493 | else |
---|
| 494 | { |
---|
| 495 | display_vfs(); |
---|
| 496 | } |
---|
[436] | 497 | } |
---|
[596] | 498 | ////////////////////////////////////////// |
---|
[436] | 499 | else if( strcmp( argv[1] , "chdev" ) == 0 ) |
---|
| 500 | { |
---|
| 501 | if( argc != 2 ) |
---|
| 502 | { |
---|
| 503 | printf(" usage: display chdev\n"); |
---|
| 504 | } |
---|
[596] | 505 | else |
---|
| 506 | { |
---|
| 507 | display_chdev(); |
---|
| 508 | } |
---|
[436] | 509 | } |
---|
[596] | 510 | ////////////////////////////////////////// |
---|
[445] | 511 | else if( strcmp( argv[1] , "dqdt" ) == 0 ) |
---|
| 512 | { |
---|
| 513 | if( argc != 2 ) |
---|
| 514 | { |
---|
| 515 | printf(" usage: display dqdt\n"); |
---|
| 516 | } |
---|
[596] | 517 | else |
---|
| 518 | { |
---|
| 519 | display_dqdt(); |
---|
| 520 | } |
---|
| 521 | } |
---|
| 522 | /////////////////////////////////////////// |
---|
| 523 | else if( strcmp( argv[1] , "locks" ) == 0 ) |
---|
| 524 | { |
---|
| 525 | if( argc != 4 ) |
---|
| 526 | { |
---|
| 527 | printf(" usage: display locks pid trdid\n"); |
---|
| 528 | } |
---|
| 529 | else |
---|
| 530 | { |
---|
| 531 | unsigned int pid = atoi(argv[2]); |
---|
| 532 | unsigned int trdid = atoi(argv[3]); |
---|
[445] | 533 | |
---|
[596] | 534 | if( display_busylocks( pid , trdid ) ) |
---|
| 535 | { |
---|
| 536 | printf(" error: illegal arguments pid = %x / trdid = %x\n", pid, trdid ); |
---|
| 537 | } |
---|
| 538 | } |
---|
[445] | 539 | } |
---|
[623] | 540 | ///////////////////////////////////////////////// |
---|
| 541 | else if( strcmp( argv[1] , "barrier" ) == 0 ) |
---|
| 542 | { |
---|
| 543 | if( argc != 3 ) |
---|
| 544 | { |
---|
| 545 | printf(" usage: display barrier pid\n"); |
---|
| 546 | } |
---|
| 547 | else |
---|
| 548 | { |
---|
| 549 | unsigned int pid = atoi(argv[2]); |
---|
| 550 | |
---|
| 551 | if( display_barrier( pid ) ) |
---|
| 552 | { |
---|
| 553 | printf(" error: illegal arguments pid = %x\n", pid ); |
---|
| 554 | } |
---|
| 555 | } |
---|
| 556 | } |
---|
[611] | 557 | /////////////////////////////////////////// |
---|
| 558 | else if( strcmp( argv[1] , "mapper" ) == 0 ) |
---|
| 559 | { |
---|
| 560 | if( argc != 5 ) |
---|
| 561 | { |
---|
| 562 | printf(" usage: display mapper path page_id nbytes\n"); |
---|
| 563 | } |
---|
| 564 | else |
---|
| 565 | { |
---|
| 566 | unsigned int page_id = atoi(argv[3]); |
---|
| 567 | unsigned int nbytes = atoi(argv[4]); |
---|
| 568 | |
---|
| 569 | if( display_mapper( argv[2] , page_id, nbytes ) ) |
---|
| 570 | { |
---|
| 571 | printf(" error: cannot display page %d of mapper %s\n", page_id, argv[2] ); |
---|
| 572 | } |
---|
| 573 | } |
---|
| 574 | } |
---|
[626] | 575 | /////////////////////////////////////////// |
---|
| 576 | else if( strcmp( argv[1] , "fat" ) == 0 ) |
---|
| 577 | { |
---|
| 578 | if( argc != 4 ) |
---|
| 579 | { |
---|
| 580 | printf(" usage: display fat page_id nb_entries\n"); |
---|
| 581 | } |
---|
| 582 | else |
---|
| 583 | { |
---|
| 584 | unsigned int page_id = atoi(argv[2]); |
---|
| 585 | unsigned int nb_entries = atoi(argv[3]); |
---|
| 586 | |
---|
| 587 | if( display_fat( page_id, nb_entries ) ) |
---|
| 588 | { |
---|
| 589 | printf(" error: cannot display page %d of fat\n", page_id ); |
---|
| 590 | } |
---|
| 591 | } |
---|
| 592 | } |
---|
[436] | 593 | else |
---|
| 594 | { |
---|
[596] | 595 | printf(" error: undefined display request : %s\n", argv[1] ); |
---|
| 596 | } |
---|
[457] | 597 | |
---|
| 598 | // release semaphore to get next command |
---|
| 599 | sem_post( &semaphore ); |
---|
| 600 | |
---|
[436] | 601 | } // end cmd_display() |
---|
| 602 | |
---|
[427] | 603 | ///////////////////////////////////////// |
---|
| 604 | static void cmd_fg(int argc, char **argv) |
---|
| 605 | { |
---|
| 606 | unsigned int pid; |
---|
| 607 | |
---|
| 608 | if (argc != 2) |
---|
| 609 | { |
---|
| 610 | printf(" usage: %s pid\n", argv[0]); |
---|
| 611 | } |
---|
[596] | 612 | else |
---|
[427] | 613 | { |
---|
[596] | 614 | pid = atoi( argv[1] ); |
---|
[427] | 615 | |
---|
[596] | 616 | if( pid == 0 ) |
---|
| 617 | { |
---|
| 618 | printf(" error: PID cannot be 0\n" ); |
---|
| 619 | } |
---|
| 620 | else if( fg( pid ) ) |
---|
| 621 | { |
---|
| 622 | printf(" error: cannot find process %x\n", pid ); |
---|
| 623 | } |
---|
| 624 | } |
---|
[457] | 625 | |
---|
| 626 | // release semaphore to get next command |
---|
| 627 | sem_post( &semaphore ); |
---|
| 628 | |
---|
[436] | 629 | } // end cmd_fg() |
---|
[427] | 630 | |
---|
[407] | 631 | ////////////////////////////////////////////// |
---|
| 632 | static void cmd_help( int argc , char **argv ) |
---|
[230] | 633 | { |
---|
[407] | 634 | unsigned int i; |
---|
[230] | 635 | |
---|
[407] | 636 | if (argc != 1) |
---|
| 637 | { |
---|
[409] | 638 | printf(" usage: %s\n", argv[0]); |
---|
[230] | 639 | } |
---|
[596] | 640 | else |
---|
[407] | 641 | { |
---|
[619] | 642 | printf("available commands:\n"); |
---|
| 643 | for (i = 0 ; command[i].name ; i++) |
---|
[596] | 644 | { |
---|
[619] | 645 | printf("\t%s\t : %s\n", command[i].name , command[i].desc); |
---|
[596] | 646 | } |
---|
| 647 | } |
---|
[457] | 648 | |
---|
| 649 | // release semaphore to get next command |
---|
| 650 | sem_post( &semaphore ); |
---|
| 651 | |
---|
[407] | 652 | } // end cmd_help() |
---|
[230] | 653 | |
---|
[407] | 654 | ////////////////////////////////////////////// |
---|
| 655 | static void cmd_kill( int argc , char **argv ) |
---|
[230] | 656 | { |
---|
[407] | 657 | unsigned int pid; |
---|
[230] | 658 | |
---|
[407] | 659 | if (argc != 2) |
---|
| 660 | { |
---|
[409] | 661 | printf(" usage: %s pid\n", argv[0]); |
---|
[230] | 662 | } |
---|
[596] | 663 | else |
---|
| 664 | { |
---|
| 665 | pid = atoi( argv[1] ); |
---|
[230] | 666 | |
---|
[596] | 667 | if( pid == 0 ) |
---|
| 668 | { |
---|
| 669 | printf(" error: kernel process 0 cannot be killed\n" ); |
---|
| 670 | } |
---|
[230] | 671 | |
---|
[596] | 672 | else if( kill( pid , SIGKILL ) ) |
---|
| 673 | { |
---|
| 674 | printf(" error: process %x cannot be killed\n", pid ); |
---|
| 675 | } |
---|
| 676 | } |
---|
[427] | 677 | |
---|
[457] | 678 | // release semaphore to get next command |
---|
| 679 | sem_post( &semaphore ); |
---|
| 680 | |
---|
[407] | 681 | } // end cmd_kill() |
---|
[230] | 682 | |
---|
[407] | 683 | ////////////////////////////////////////////// |
---|
| 684 | static void cmd_load( int argc , char **argv ) |
---|
[230] | 685 | { |
---|
[436] | 686 | int ret_fork; // return value from fork |
---|
| 687 | int ret_exec; // return value from exec |
---|
| 688 | unsigned int ksh_pid; // KSH process PID |
---|
| 689 | unsigned int background; // background execution if non zero |
---|
[588] | 690 | unsigned int placement; // placement specified if non zero |
---|
| 691 | unsigned int cxy; // target cluster if placement specified |
---|
[407] | 692 | |
---|
[619] | 693 | #if DEBUG_CMD_LOAD |
---|
[635] | 694 | snprintf( string , 128 , "[ksh] enter %s" , __FUNCTION__); |
---|
| 695 | display_string( string ); |
---|
[619] | 696 | #endif |
---|
| 697 | |
---|
[588] | 698 | if( (argc < 2) || (argc > 4) ) |
---|
[407] | 699 | { |
---|
[588] | 700 | printf(" usage: %s pathname [cxy] [&]\n", argv[0] ); |
---|
[407] | 701 | } |
---|
[596] | 702 | else |
---|
| 703 | { |
---|
[625] | 704 | strcpy( pathname , argv[1] ); |
---|
[407] | 705 | |
---|
[596] | 706 | if( argc == 2 ) |
---|
[588] | 707 | { |
---|
[596] | 708 | background = 0; |
---|
[588] | 709 | placement = 0; |
---|
| 710 | cxy = 0; |
---|
| 711 | } |
---|
[596] | 712 | else if( argc == 3 ) |
---|
[588] | 713 | { |
---|
[596] | 714 | if( (argv[2][0] == '&') && (argv[2][1] == 0) ) |
---|
| 715 | { |
---|
| 716 | background = 1; |
---|
| 717 | placement = 0; |
---|
| 718 | cxy = 0; |
---|
| 719 | } |
---|
| 720 | else |
---|
| 721 | { |
---|
| 722 | background = 0; |
---|
| 723 | placement = 1; |
---|
| 724 | cxy = atoi( argv[2] ); |
---|
| 725 | } |
---|
| 726 | } |
---|
| 727 | else // argc == 4 |
---|
| 728 | { |
---|
| 729 | background = ( (argv[3][0] == '&') && (argv[3][1] == 0) ); |
---|
[588] | 730 | placement = 1; |
---|
| 731 | cxy = atoi( argv[2] ); |
---|
| 732 | } |
---|
[427] | 733 | |
---|
[596] | 734 | // get KSH process PID |
---|
| 735 | ksh_pid = getpid(); |
---|
[407] | 736 | |
---|
[611] | 737 | #if DEBUG_CMD_LOAD |
---|
[635] | 738 | snprintf( string , 128 , "[ksh] %s : <%s> / bg %d / place %d / cxy %x", |
---|
| 739 | __FUNCTION__, argv[1], background, placement, cxy ); |
---|
[619] | 740 | display_string( string ); |
---|
[457] | 741 | #endif |
---|
| 742 | |
---|
[596] | 743 | // set target cluster if required |
---|
| 744 | if( placement ) place_fork( cxy ); |
---|
[588] | 745 | |
---|
[596] | 746 | // KSH process fork CHILD process |
---|
| 747 | ret_fork = fork(); |
---|
[434] | 748 | |
---|
[596] | 749 | if ( ret_fork < 0 ) // it is a failure reported to KSH |
---|
| 750 | { |
---|
| 751 | printf(" error: ksh process unable to fork\n"); |
---|
| 752 | } |
---|
| 753 | else if (ret_fork == 0) // it is the CHILD process |
---|
| 754 | { |
---|
[469] | 755 | |
---|
[611] | 756 | #if DEBUG_CMD_LOAD |
---|
[635] | 757 | snprintf( string , 128 , "[ksh] %s : child (%x) after fork, before exec", |
---|
[619] | 758 | __FUNCTION__ , getpid() ); |
---|
| 759 | display_string( string ); |
---|
[469] | 760 | #endif |
---|
| 761 | |
---|
[596] | 762 | // CHILD process exec NEW process |
---|
| 763 | ret_exec = execve( pathname , NULL , NULL ); |
---|
[434] | 764 | |
---|
[611] | 765 | #if DEBUG_CMD_LOAD |
---|
[635] | 766 | snprintf( string , 128 , "[ksh] %s : child (%x) after exec / ret_exec %x", |
---|
[619] | 767 | __FUNCTION__ , getpid(), ret_exec ); |
---|
| 768 | display_string( string ); |
---|
[469] | 769 | #endif |
---|
| 770 | |
---|
[596] | 771 | // this is only executed in case of exec failure |
---|
| 772 | if( ret_exec ) |
---|
| 773 | { |
---|
| 774 | printf(" error: child process unable to exec <%s>\n", pathname ); |
---|
| 775 | exit( 0 ); |
---|
| 776 | } |
---|
| 777 | } |
---|
| 778 | else // it is the KSH process : ret_fork is the new process PID |
---|
[409] | 779 | { |
---|
[436] | 780 | |
---|
[611] | 781 | #if DEBUG_CMD_LOAD |
---|
[635] | 782 | snprintf( string , 128 , "[ksh] %s : ksh (%x) after fork / ret_fork %x", |
---|
[619] | 783 | __FUNCTION__, getpid(), ret_fork ); |
---|
| 784 | display_string( string ); |
---|
[457] | 785 | #endif |
---|
[625] | 786 | // when the new process is launched in background, the KSH process |
---|
| 787 | // takes the TXT ownership, and release the semaphore to get the next command. |
---|
| 788 | // Otherwise, the child process keep the TXT ownership, and the semaphore will |
---|
| 789 | // be released by the KSH main thread when the child process exit |
---|
[457] | 790 | |
---|
[619] | 791 | if( background ) // KSH must keep TXT ownership |
---|
[596] | 792 | { |
---|
[619] | 793 | // get back the TXT ownership |
---|
[596] | 794 | fg( ksh_pid ); |
---|
[619] | 795 | |
---|
| 796 | // release semaphore to get next command |
---|
| 797 | sem_post( &semaphore ); |
---|
[596] | 798 | } |
---|
[457] | 799 | } |
---|
[436] | 800 | } |
---|
[407] | 801 | } // end cmd_load |
---|
| 802 | |
---|
| 803 | ///////////////////////////////////////////// |
---|
| 804 | static void cmd_log( int argc , char **argv ) |
---|
| 805 | { |
---|
| 806 | unsigned int i; |
---|
| 807 | |
---|
[473] | 808 | if (argc != 1) |
---|
| 809 | { |
---|
| 810 | printf(" usage: %s\n", argv[0], argc ); |
---|
| 811 | } |
---|
[596] | 812 | else |
---|
[407] | 813 | { |
---|
[596] | 814 | printf("--- registered commands ---\n"); |
---|
| 815 | for (i = 0; i < LOG_DEPTH; i++) |
---|
| 816 | { |
---|
| 817 | printf(" - %d\t: %s\n", i, &log_entries[i].buf); |
---|
| 818 | } |
---|
| 819 | } |
---|
[230] | 820 | |
---|
[457] | 821 | // release semaphore to get next command |
---|
| 822 | sem_post( &semaphore ); |
---|
| 823 | |
---|
| 824 | } // end cmd_log() |
---|
| 825 | |
---|
| 826 | |
---|
[407] | 827 | //////////////////////////////////////////// |
---|
| 828 | static void cmd_ls( int argc , char **argv ) |
---|
[230] | 829 | { |
---|
[611] | 830 | struct dirent * entry; |
---|
| 831 | DIR * dir; |
---|
[230] | 832 | |
---|
[619] | 833 | #if DEBUG_CMD_LS |
---|
[635] | 834 | snprintf( string , 128 , "[ksh] enter %s" , __FUNCTION__); |
---|
| 835 | display_string( string ); |
---|
[619] | 836 | #endif |
---|
| 837 | |
---|
[612] | 838 | if (argc > 2 ) |
---|
[407] | 839 | { |
---|
[596] | 840 | printf(" usage: ls [path]\n"); |
---|
[407] | 841 | } |
---|
[596] | 842 | else |
---|
[407] | 843 | { |
---|
[612] | 844 | // handle case with no argument |
---|
[230] | 845 | |
---|
[611] | 846 | // get target directory path |
---|
[612] | 847 | if ( argc == 1 ) strcpy( pathname , "." ); |
---|
[625] | 848 | else strcpy( pathname , argv[1] ); |
---|
[611] | 849 | |
---|
| 850 | // open target directory |
---|
| 851 | dir = opendir( pathname ); |
---|
| 852 | |
---|
| 853 | #if DEBUG_CMD_LS |
---|
[635] | 854 | snprintf( string , 128 , "[ksh] %s : directory <%s> open / DIR %x\n", |
---|
[611] | 855 | __FUNCTION__, pathname , dir ); |
---|
[619] | 856 | display_string( string ); |
---|
[611] | 857 | #endif |
---|
| 858 | |
---|
| 859 | if( dir == NULL) |
---|
| 860 | { |
---|
| 861 | printf(" error : directory <%s> not found\n", pathname ); |
---|
[623] | 862 | |
---|
| 863 | sem_post( &semaphore ); |
---|
| 864 | return; |
---|
[611] | 865 | } |
---|
| 866 | |
---|
| 867 | // loop on directory entries |
---|
| 868 | while ( (entry = readdir(dir)) != NULL ) |
---|
| 869 | { |
---|
[612] | 870 | printf("%s\n", entry->d_name); |
---|
[611] | 871 | } |
---|
| 872 | |
---|
| 873 | // close target directory |
---|
| 874 | closedir( dir ); |
---|
| 875 | |
---|
| 876 | #if DEBUG_CMD_LS |
---|
[635] | 877 | snprintf( string , 128 , "[ksh] %s : directory <%s> closed\n", |
---|
[611] | 878 | __FUNCTION__, pathname ); |
---|
[619] | 879 | display_string( string ); |
---|
[611] | 880 | #endif |
---|
| 881 | |
---|
[596] | 882 | } |
---|
[230] | 883 | |
---|
[457] | 884 | // release semaphore to get next command |
---|
| 885 | sem_post( &semaphore ); |
---|
| 886 | |
---|
| 887 | } // end cmd_ls() |
---|
| 888 | |
---|
[407] | 889 | /////////////////////////////////////////////// |
---|
| 890 | static void cmd_mkdir( int argc , char **argv ) |
---|
[230] | 891 | { |
---|
[407] | 892 | if (argc != 2) |
---|
| 893 | { |
---|
[409] | 894 | printf(" usage: mkdir pathname\n"); |
---|
[230] | 895 | } |
---|
[596] | 896 | else |
---|
| 897 | { |
---|
[625] | 898 | strcpy( pathname , argv[1] ); |
---|
[230] | 899 | |
---|
[610] | 900 | mkdir( pathname , 0x777 ); |
---|
[596] | 901 | } |
---|
[230] | 902 | |
---|
[457] | 903 | // release semaphore to get next command |
---|
| 904 | sem_post( &semaphore ); |
---|
| 905 | |
---|
| 906 | } // end cmd_mkdir() |
---|
| 907 | |
---|
[407] | 908 | //////////////////////////////////////////// |
---|
| 909 | static void cmd_mv( int argc , char **argv ) |
---|
[230] | 910 | { |
---|
[610] | 911 | if (argc != 3) |
---|
| 912 | { |
---|
| 913 | printf(" usage: mv old_pathname new_pathname\n"); |
---|
[230] | 914 | } |
---|
[596] | 915 | else |
---|
| 916 | { |
---|
[625] | 917 | strcpy( pathname , argv[1] ); |
---|
| 918 | strcpy( pathnew , argv[2] ); |
---|
[610] | 919 | |
---|
| 920 | // call the relevant syscall |
---|
[625] | 921 | if( rename( pathname , pathnew ) ) |
---|
[610] | 922 | { |
---|
[625] | 923 | printf(" error: unable to rename <%s> to <%s>\n", pathname , pathnew ); |
---|
[610] | 924 | } |
---|
[596] | 925 | } |
---|
[610] | 926 | |
---|
[457] | 927 | // release semaphore to get next command |
---|
| 928 | sem_post( &semaphore ); |
---|
[407] | 929 | |
---|
[457] | 930 | } // end cmd_mv |
---|
[230] | 931 | |
---|
[588] | 932 | |
---|
| 933 | //////////////////////////////////////////// |
---|
| 934 | static void cmd_ps( int argc , char **argv ) |
---|
| 935 | { |
---|
| 936 | unsigned int x_size; |
---|
| 937 | unsigned int y_size; |
---|
| 938 | unsigned int ncores; |
---|
| 939 | unsigned int x; |
---|
| 940 | unsigned int y; |
---|
| 941 | |
---|
[619] | 942 | #if DEBUG_CMD_PS |
---|
[635] | 943 | snprintf( string , 128 , "[ksh] enter %s" , __FUNCTION__); |
---|
| 944 | display_string( string ); |
---|
[619] | 945 | #endif |
---|
| 946 | |
---|
[588] | 947 | if (argc != 1) |
---|
| 948 | { |
---|
| 949 | printf(" usage: %s\n", argv[0]); |
---|
| 950 | } |
---|
[596] | 951 | else |
---|
| 952 | { |
---|
| 953 | // get platform config |
---|
| 954 | get_config( &x_size , &y_size , &ncores ); |
---|
[588] | 955 | |
---|
[596] | 956 | // scan all clusters |
---|
| 957 | for( x = 0 ; x < x_size ; x++ ) |
---|
[588] | 958 | { |
---|
[596] | 959 | for( y = 0 ; y < y_size ; y++ ) |
---|
| 960 | { |
---|
[619] | 961 | |
---|
| 962 | #if DEBUG_CMD_PS |
---|
[635] | 963 | snprintf( string , 128 , "\n[ksh] %s : call display_cluster_process()", __FUNCTION__ ); |
---|
[619] | 964 | display_string( string ); |
---|
| 965 | #endif |
---|
| 966 | |
---|
[596] | 967 | // display only owned processes |
---|
| 968 | display_cluster_processes( HAL_CXY_FROM_XY(x,y), 1 ); |
---|
| 969 | } |
---|
[588] | 970 | } |
---|
| 971 | } |
---|
| 972 | |
---|
| 973 | // release semaphore to get next command |
---|
| 974 | sem_post( &semaphore ); |
---|
| 975 | |
---|
| 976 | } // end cmd_ps() |
---|
| 977 | |
---|
[407] | 978 | ///////////////////////////////////////////// |
---|
| 979 | static void cmd_pwd( int argc , char **argv ) |
---|
[230] | 980 | { |
---|
[407] | 981 | if (argc != 1) |
---|
| 982 | { |
---|
[473] | 983 | printf(" usage: %s\n", argv[0]); |
---|
[407] | 984 | } |
---|
| 985 | else |
---|
| 986 | { |
---|
[625] | 987 | if ( getcwd( pathname , PATH_MAX_SIZE ) ) |
---|
[596] | 988 | { |
---|
| 989 | printf(" error: unable to get current directory\n"); |
---|
| 990 | } |
---|
| 991 | else |
---|
| 992 | { |
---|
[625] | 993 | printf("%s\n", pathname ); |
---|
[596] | 994 | } |
---|
| 995 | } |
---|
[407] | 996 | |
---|
[457] | 997 | // release semaphore to get next command |
---|
| 998 | sem_post( &semaphore ); |
---|
| 999 | |
---|
| 1000 | } // end cmd_pwd() |
---|
| 1001 | |
---|
[407] | 1002 | //////////////////////////////////////////// |
---|
| 1003 | static void cmd_rm( int argc , char **argv ) |
---|
| 1004 | { |
---|
| 1005 | if (argc != 2) |
---|
| 1006 | { |
---|
[473] | 1007 | printf(" usage: %s pathname\n", argv[0]); |
---|
[230] | 1008 | } |
---|
[596] | 1009 | else |
---|
| 1010 | { |
---|
[625] | 1011 | strcpy( pathname , argv[1] ); |
---|
[230] | 1012 | |
---|
[608] | 1013 | if ( unlink( pathname ) ) |
---|
| 1014 | { |
---|
[611] | 1015 | printf(" error: unable to remove <%s>\n", pathname ); |
---|
[608] | 1016 | } |
---|
[596] | 1017 | } |
---|
[230] | 1018 | |
---|
[457] | 1019 | // release semaphore to get next command |
---|
| 1020 | sem_post( &semaphore ); |
---|
[230] | 1021 | |
---|
[457] | 1022 | } // end_cmd_rm() |
---|
| 1023 | |
---|
[407] | 1024 | /////////////////////////////////////////////// |
---|
| 1025 | static void cmd_rmdir( int argc , char **argv ) |
---|
[230] | 1026 | { |
---|
[457] | 1027 | // same as cmd_rm() |
---|
[625] | 1028 | cmd_rm (argc , argv ); |
---|
[230] | 1029 | } |
---|
| 1030 | |
---|
[442] | 1031 | /////////////////////////////////////////////// |
---|
| 1032 | static void cmd_trace( int argc , char **argv ) |
---|
| 1033 | { |
---|
| 1034 | unsigned int cxy; |
---|
| 1035 | unsigned int lid; |
---|
| 1036 | |
---|
| 1037 | if (argc != 3) |
---|
| 1038 | { |
---|
| 1039 | printf(" usage: trace cxy lid \n"); |
---|
| 1040 | } |
---|
[596] | 1041 | else |
---|
| 1042 | { |
---|
| 1043 | cxy = atoi(argv[1]); |
---|
| 1044 | lid = atoi(argv[2]); |
---|
[442] | 1045 | |
---|
[596] | 1046 | if( trace( 1 , cxy , lid ) ) |
---|
| 1047 | { |
---|
| 1048 | printf(" error: core[%x,%d] not found\n", cxy, lid ); |
---|
| 1049 | } |
---|
[442] | 1050 | } |
---|
| 1051 | |
---|
[457] | 1052 | // release semaphore to get next command |
---|
| 1053 | sem_post( &semaphore ); |
---|
| 1054 | |
---|
| 1055 | } // end cmd_trace |
---|
| 1056 | |
---|
[442] | 1057 | /////////////////////////////////////////////// |
---|
| 1058 | static void cmd_untrace( int argc , char **argv ) |
---|
| 1059 | { |
---|
| 1060 | unsigned int cxy; |
---|
| 1061 | unsigned int lid; |
---|
| 1062 | |
---|
| 1063 | if (argc != 3) |
---|
| 1064 | { |
---|
| 1065 | printf(" usage: untrace cxy lid \n"); |
---|
| 1066 | } |
---|
[596] | 1067 | else |
---|
| 1068 | { |
---|
| 1069 | cxy = atoi(argv[1]); |
---|
| 1070 | lid = atoi(argv[2]); |
---|
[442] | 1071 | |
---|
[596] | 1072 | if( trace( 0 , cxy , lid ) ) |
---|
| 1073 | { |
---|
| 1074 | printf(" error: core[%x,%d] not found\n", cxy, lid ); |
---|
| 1075 | } |
---|
[442] | 1076 | } |
---|
| 1077 | |
---|
[457] | 1078 | // release semaphore to get next command |
---|
| 1079 | sem_post( &semaphore ); |
---|
| 1080 | |
---|
| 1081 | } // end cmd_untrace() |
---|
| 1082 | |
---|
| 1083 | /////////////////////////////////////////////////////////////////////////////////// |
---|
[407] | 1084 | // Array of commands |
---|
[457] | 1085 | /////////////////////////////////////////////////////////////////////////////////// |
---|
[230] | 1086 | |
---|
[619] | 1087 | ksh_cmd_t command[] = |
---|
[230] | 1088 | { |
---|
[435] | 1089 | { "cat", "display file content", cmd_cat }, |
---|
| 1090 | { "cd", "change current directory", cmd_cd }, |
---|
| 1091 | { "cp", "replicate a file in file system", cmd_cp }, |
---|
| 1092 | { "fg", "put a process in foreground", cmd_fg }, |
---|
| 1093 | { "display", "display vmm/sched/process/vfs/chdev/txt", cmd_display }, |
---|
| 1094 | { "load", "load an user application", cmd_load }, |
---|
| 1095 | { "help", "list available commands", cmd_help }, |
---|
[457] | 1096 | { "kill", "kill a process (all threads)", cmd_kill }, |
---|
[435] | 1097 | { "log", "list registered commands", cmd_log }, |
---|
| 1098 | { "ls", "list directory entries", cmd_ls }, |
---|
| 1099 | { "mkdir", "create a new directory", cmd_mkdir }, |
---|
| 1100 | { "mv", "move a file in file system", cmd_mv }, |
---|
| 1101 | { "pwd", "print current working directory", cmd_pwd }, |
---|
[588] | 1102 | { "ps", "display all processes", cmd_ps }, |
---|
[435] | 1103 | { "rm", "remove a file from file system", cmd_rm }, |
---|
| 1104 | { "rmdir", "remove a directory from file system", cmd_rmdir }, |
---|
[442] | 1105 | { "trace", "activate trace for a given core", cmd_trace }, |
---|
| 1106 | { "untrace", "desactivate trace for a given core", cmd_untrace }, |
---|
[435] | 1107 | { NULL, NULL, NULL } |
---|
[230] | 1108 | }; |
---|
| 1109 | |
---|
[407] | 1110 | //////////////////////////////////////////////////////////////////////////////////// |
---|
[457] | 1111 | // This function analyses one command (with arguments), executes it, and returns. |
---|
[407] | 1112 | //////////////////////////////////////////////////////////////////////////////////// |
---|
[625] | 1113 | static void __attribute__ ((noinline)) execute( char * buf ) |
---|
[230] | 1114 | { |
---|
[619] | 1115 | int argc = 0; |
---|
| 1116 | char * argv[MAX_ARGS]; |
---|
| 1117 | int i; |
---|
| 1118 | int len = strlen(buf); |
---|
[230] | 1119 | |
---|
[625] | 1120 | #if DEBUG_EXECUTE |
---|
[635] | 1121 | snprintf( string , 128 , "[ksh] enter %s for command <%s>" , __FUNCTION__ , buf ); |
---|
| 1122 | display_string( string ); |
---|
[619] | 1123 | #endif |
---|
| 1124 | |
---|
[230] | 1125 | // build argc/argv |
---|
[407] | 1126 | for (i = 0; i < len; i++) |
---|
| 1127 | { |
---|
[619] | 1128 | // convert SPACE to NUL |
---|
[407] | 1129 | if (buf[i] == ' ') |
---|
| 1130 | { |
---|
[230] | 1131 | buf[i] = '\0'; |
---|
[407] | 1132 | } |
---|
| 1133 | else if (i == 0 || buf[i - 1] == '\0') |
---|
| 1134 | { |
---|
| 1135 | if (argc < MAX_ARGS) |
---|
| 1136 | { |
---|
[230] | 1137 | argv[argc] = &buf[i]; |
---|
| 1138 | argc++; |
---|
| 1139 | } |
---|
| 1140 | } |
---|
| 1141 | } |
---|
| 1142 | |
---|
[625] | 1143 | // check command |
---|
| 1144 | if (argc == 0) |
---|
| 1145 | { |
---|
| 1146 | // release semaphore to get next command |
---|
| 1147 | sem_post( &semaphore ); |
---|
| 1148 | } |
---|
| 1149 | |
---|
| 1150 | #if DEBUG_EXECUTE |
---|
[635] | 1151 | snprintf( string , 128 , "\n[ksh] in %s : argc = %d / arg0 = %s / arg1 = %s\n", |
---|
[625] | 1152 | __FUNCTION__ , argc , argv[0], argv[1] ); |
---|
[619] | 1153 | #endif |
---|
| 1154 | |
---|
[625] | 1155 | // scan the list of commands to match typed command |
---|
| 1156 | int found = 0; |
---|
| 1157 | for ( i = 0 ; (command[i].name != NULL) && (found == 0) ; i++ ) |
---|
[407] | 1158 | { |
---|
[625] | 1159 | if (strcmp(argv[0], command[i].name) == 0) |
---|
[407] | 1160 | { |
---|
[625] | 1161 | command[i].fn(argc, argv); |
---|
| 1162 | found = 1; |
---|
[230] | 1163 | } |
---|
[625] | 1164 | } |
---|
[230] | 1165 | |
---|
[625] | 1166 | // check undefined command |
---|
| 1167 | if (!found) |
---|
| 1168 | { |
---|
| 1169 | printf(" error : undefined command <%s>\n", argv[0]); |
---|
[457] | 1170 | |
---|
[625] | 1171 | // release semaphore to get next command |
---|
| 1172 | sem_post( &semaphore ); |
---|
[230] | 1173 | } |
---|
[625] | 1174 | } // end execute() |
---|
[230] | 1175 | |
---|
[626] | 1176 | |
---|
| 1177 | |
---|
[574] | 1178 | /////////////////////////////// |
---|
[503] | 1179 | static void interactive( void ) |
---|
[230] | 1180 | { |
---|
[469] | 1181 | char c; // read character |
---|
| 1182 | unsigned int end_command; // last character found in a command |
---|
| 1183 | unsigned int count; // pointer in command buffer |
---|
| 1184 | unsigned int i; // index for loops |
---|
| 1185 | unsigned int state; // escape sequence state |
---|
[230] | 1186 | |
---|
[619] | 1187 | char cmd[CMD_MAX_SIZE]; // buffer for one command |
---|
[457] | 1188 | |
---|
[637] | 1189 | /* 1. first direct command |
---|
[588] | 1190 | if( sem_wait( &semaphore ) ) |
---|
[469] | 1191 | { |
---|
[588] | 1192 | printf("\n[ksh error] cannot found semafore\n" ); |
---|
| 1193 | exit( 1 ); |
---|
[469] | 1194 | } |
---|
[588] | 1195 | else |
---|
| 1196 | { |
---|
[635] | 1197 | printf("\n[ksh] load bin/user/sort.elf\n"); |
---|
[588] | 1198 | } |
---|
[469] | 1199 | |
---|
[635] | 1200 | strcpy( cmd , "load bin/user/sort.elf" ); |
---|
[625] | 1201 | execute( cmd ); |
---|
[637] | 1202 | */ |
---|
[625] | 1203 | |
---|
[628] | 1204 | |
---|
| 1205 | |
---|
[638] | 1206 | // 2. second direct command |
---|
[625] | 1207 | if( sem_wait( &semaphore ) ) |
---|
| 1208 | { |
---|
| 1209 | printf("\n[ksh error] cannot found semafore\n" ); |
---|
| 1210 | exit( 1 ); |
---|
| 1211 | } |
---|
| 1212 | else |
---|
| 1213 | { |
---|
[635] | 1214 | printf("\n[ksh] load bin/user/fft.elf\n"); |
---|
[625] | 1215 | } |
---|
| 1216 | |
---|
[635] | 1217 | strcpy( cmd , "load bin/user/fft.elf" ); |
---|
[625] | 1218 | execute( cmd ); |
---|
[638] | 1219 | // |
---|
[469] | 1220 | |
---|
[628] | 1221 | |
---|
| 1222 | |
---|
[407] | 1223 | enum fsm_states |
---|
| 1224 | { |
---|
[457] | 1225 | NORMAL = 0, |
---|
| 1226 | ESCAPE = 1, |
---|
| 1227 | BRAKET = 2, |
---|
[230] | 1228 | }; |
---|
| 1229 | |
---|
[457] | 1230 | // This lexical analyser writes one command line in the command buffer. |
---|
| 1231 | // It is implemented as a 3 states FSM to handle the following escape sequences: |
---|
[230] | 1232 | // - ESC [ A : up arrow |
---|
| 1233 | // - ESC [ B : down arrow |
---|
| 1234 | // - ESC [ C : right arrow |
---|
| 1235 | // - ESC [ D : left arrow |
---|
[407] | 1236 | // The three states have the following semantic: |
---|
[230] | 1237 | // - NORMAL : no (ESC) character has been found |
---|
| 1238 | // - ESCAPE : the character (ESC) has been found |
---|
| 1239 | // - BRAKET : the wo characters (ESC,[) have been found |
---|
[436] | 1240 | |
---|
[619] | 1241 | // take the semaphore for the first command |
---|
| 1242 | if ( sem_wait( &semaphore ) ) |
---|
| 1243 | { |
---|
| 1244 | printf("\n[ksh error] cannot found semafore\n" ); |
---|
| 1245 | exit( 1 ); |
---|
| 1246 | } |
---|
| 1247 | |
---|
| 1248 | // display prompt for the first command |
---|
| 1249 | printf("\n[ksh] "); |
---|
| 1250 | |
---|
| 1251 | // external loop on the commands / the interactive thread do not exit this loop |
---|
[230] | 1252 | while (1) |
---|
| 1253 | { |
---|
[457] | 1254 | // initialize command buffer |
---|
[625] | 1255 | // memset( cmd , 0x20 , sizeof(cmd) ); // TODO useful ? |
---|
[619] | 1256 | count = 0; |
---|
| 1257 | state = NORMAL; |
---|
| 1258 | end_command = 0; |
---|
[230] | 1259 | |
---|
[619] | 1260 | #if DEBUG_INTER |
---|
| 1261 | unsigned int pid = getpid(); |
---|
[635] | 1262 | snprintf( string , 128 , "[ksh] %s : request a new command", __FUNCTION__ ); |
---|
[619] | 1263 | display_string( string ); |
---|
| 1264 | #endif |
---|
[407] | 1265 | |
---|
[457] | 1266 | // internal loop on characters in one command |
---|
| 1267 | while( end_command == 0 ) |
---|
| 1268 | { |
---|
| 1269 | // get one character from TXT_RX |
---|
| 1270 | c = (char)getchar(); |
---|
| 1271 | |
---|
| 1272 | if( c == 0 ) continue; |
---|
| 1273 | |
---|
| 1274 | if( state == NORMAL ) // we are not in an escape sequence |
---|
| 1275 | { |
---|
[230] | 1276 | if ((c == '\b') || (c == 0x7F)) // backspace => remove one character |
---|
| 1277 | { |
---|
[457] | 1278 | if (count > 0) |
---|
| 1279 | { |
---|
| 1280 | printf("\b \b"); |
---|
| 1281 | count--; |
---|
| 1282 | } |
---|
[230] | 1283 | } |
---|
[457] | 1284 | else if (c == '\n') // new line => end of command |
---|
[230] | 1285 | { |
---|
[457] | 1286 | if (count > 0) // analyse & execute command |
---|
| 1287 | { |
---|
| 1288 | // complete command with NUL character |
---|
[619] | 1289 | cmd[count] = 0; |
---|
[457] | 1290 | count++; |
---|
[625] | 1291 | #if DEBUG_INTER |
---|
[635] | 1292 | snprintf( string , 128 , "[ksh] %s : get command <%s>", __FUNCTION__, cmd ); |
---|
[625] | 1293 | display_string( string ); |
---|
| 1294 | display_vmm( 0 , 2 ); |
---|
| 1295 | #endif |
---|
| 1296 | // register command in log_entries[] array |
---|
[619] | 1297 | strncpy( log_entries[ptw].buf , cmd , count ); |
---|
[457] | 1298 | log_entries[ptw].count = count; |
---|
| 1299 | ptw = (ptw + 1) % LOG_DEPTH; |
---|
| 1300 | ptr = ptw; |
---|
[230] | 1301 | |
---|
[619] | 1302 | #if DEBUG_INTER |
---|
[625] | 1303 | snprintf( string , 128 , "[ksh] %s : execute <%s>", __FUNCTION__, cmd ); |
---|
[619] | 1304 | display_string( string ); |
---|
| 1305 | #endif |
---|
[457] | 1306 | // echo character |
---|
| 1307 | putchar( c ); |
---|
[230] | 1308 | |
---|
[625] | 1309 | // execute command |
---|
| 1310 | execute( cmd ); |
---|
[457] | 1311 | } |
---|
| 1312 | else // no command registered |
---|
[441] | 1313 | { |
---|
[457] | 1314 | // release semaphore to get next command |
---|
| 1315 | sem_post( &semaphore ); |
---|
[441] | 1316 | } |
---|
[457] | 1317 | |
---|
| 1318 | // exit internal loop on characters |
---|
| 1319 | end_command = 1; |
---|
| 1320 | } |
---|
| 1321 | else if (c == '\t') // tabulation => do nothing |
---|
| 1322 | { |
---|
| 1323 | } |
---|
| 1324 | else if (c == (char)0x1B) // ESC => start an escape sequence |
---|
| 1325 | { |
---|
| 1326 | state = ESCAPE; |
---|
| 1327 | } |
---|
| 1328 | else // normal character |
---|
[230] | 1329 | { |
---|
[619] | 1330 | if (count < (sizeof(cmd) - 1) ) |
---|
[457] | 1331 | { |
---|
| 1332 | // register character in command buffer |
---|
[619] | 1333 | cmd[count] = c; |
---|
[457] | 1334 | count++; |
---|
| 1335 | |
---|
| 1336 | // echo character |
---|
| 1337 | putchar( c ); |
---|
[230] | 1338 | } |
---|
[619] | 1339 | else |
---|
| 1340 | { |
---|
| 1341 | printf("\none command cannot exceed %d characters\n", sizeof(cmd) ); |
---|
| 1342 | } |
---|
[230] | 1343 | } |
---|
| 1344 | } |
---|
[457] | 1345 | else if( state == ESCAPE ) |
---|
[230] | 1346 | { |
---|
| 1347 | if (c == '[') // valid sequence => continue |
---|
| 1348 | { |
---|
| 1349 | state = BRAKET; |
---|
| 1350 | } |
---|
| 1351 | else // invalid sequence => do nothing |
---|
| 1352 | { |
---|
| 1353 | state = NORMAL; |
---|
| 1354 | } |
---|
| 1355 | } |
---|
[457] | 1356 | else if( state == BRAKET ) |
---|
[230] | 1357 | { |
---|
[619] | 1358 | if (c == 'D') // valid LEFT sequence => move cmd pointer left |
---|
[230] | 1359 | { |
---|
| 1360 | if (count > 0) |
---|
| 1361 | { |
---|
| 1362 | printf("\b"); |
---|
| 1363 | count--; |
---|
| 1364 | } |
---|
| 1365 | |
---|
| 1366 | // get next user char |
---|
| 1367 | state = NORMAL; |
---|
| 1368 | } |
---|
[619] | 1369 | else if (c == 'C') // valid RIGHT sequence => move cmd pointer right |
---|
[230] | 1370 | { |
---|
[619] | 1371 | if (count < sizeof(cmd) - 1) |
---|
[230] | 1372 | { |
---|
[619] | 1373 | printf("%c", cmd[count]); |
---|
[230] | 1374 | count++; |
---|
| 1375 | } |
---|
| 1376 | |
---|
| 1377 | // get next user char |
---|
| 1378 | state = NORMAL; |
---|
| 1379 | } |
---|
| 1380 | else if (c == 'A') // valid UP sequence => move log pointer backward |
---|
| 1381 | { |
---|
| 1382 | // cancel current command |
---|
| 1383 | for (i = 0; i < count; i++) printf("\b \b"); |
---|
| 1384 | count = 0; |
---|
| 1385 | |
---|
[619] | 1386 | // copy log command into cmd |
---|
[230] | 1387 | ptr = (ptr - 1) % LOG_DEPTH; |
---|
[619] | 1388 | strcpy(cmd, log_entries[ptr].buf); |
---|
[458] | 1389 | count = log_entries[ptr].count - 1; |
---|
[230] | 1390 | |
---|
| 1391 | // display log command |
---|
[619] | 1392 | printf("%s", cmd); |
---|
[230] | 1393 | |
---|
| 1394 | // get next user char |
---|
| 1395 | state = NORMAL; |
---|
| 1396 | } |
---|
| 1397 | else if (c == 'B') // valid DOWN sequence => move log pointer forward |
---|
| 1398 | { |
---|
| 1399 | // cancel current command |
---|
| 1400 | for (i = 0 ; i < count; i++) printf("\b \b"); |
---|
| 1401 | count = 0; |
---|
| 1402 | |
---|
[619] | 1403 | // copy log command into cmd |
---|
[230] | 1404 | ptr = (ptr + 1) % LOG_DEPTH; |
---|
[619] | 1405 | strcpy(cmd, log_entries[ptr].buf); |
---|
[230] | 1406 | count = log_entries[ptr].count; |
---|
| 1407 | |
---|
| 1408 | // display log command |
---|
[619] | 1409 | printf("%s", cmd); |
---|
[230] | 1410 | |
---|
| 1411 | // get next user char |
---|
| 1412 | state = NORMAL; |
---|
| 1413 | } |
---|
| 1414 | else // other character => do nothing |
---|
| 1415 | { |
---|
| 1416 | // get next user char |
---|
| 1417 | state = NORMAL; |
---|
| 1418 | } |
---|
| 1419 | } |
---|
[457] | 1420 | } // end internal while loop on characters |
---|
[619] | 1421 | |
---|
| 1422 | #if DEBUG_INTER |
---|
[625] | 1423 | snprintf( string , 128 , "\n[ksh] %s : complete <%s> command", __FUNCTION__, cmd ); |
---|
[619] | 1424 | display_string( string ); |
---|
| 1425 | #endif |
---|
| 1426 | |
---|
| 1427 | // block interactive thread if KSH loose TXT ownership |
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| 1428 | if ( sem_wait( &semaphore ) ) |
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| 1429 | { |
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| 1430 | printf("\n[ksh error] cannot found semafore\n" ); |
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| 1431 | exit( 1 ); |
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| 1432 | } |
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| 1433 | |
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| 1434 | // display prompt for next command |
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| 1435 | printf("\n[ksh] "); |
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| 1436 | |
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[457] | 1437 | } // end external while loop on commands |
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[619] | 1438 | |
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[446] | 1439 | } // end interactive() |
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| 1440 | |
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[574] | 1441 | //////////////// |
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[503] | 1442 | int main( void ) |
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[446] | 1443 | { |
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| 1444 | unsigned int cxy; // owner cluster identifier for this KSH process |
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| 1445 | unsigned int lid; // core identifier for this KSH main thread |
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| 1446 | int status; // child process termination status |
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[633] | 1447 | int parent_pid; // parent process identifier (i.e. this process) |
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[457] | 1448 | int child_pid; // child process identifier |
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| 1449 | unsigned int is_owner; // non-zero if KSH process is TXT owner |
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[446] | 1450 | |
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| 1451 | // initialize log buffer |
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| 1452 | memset( &log_entries , 0, sizeof(log_entries)); |
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| 1453 | ptw = 0; |
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| 1454 | ptr = 0; |
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| 1455 | |
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[457] | 1456 | // get KSH process pid and core |
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| 1457 | parent_pid = getpid(); |
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[637] | 1458 | get_core_id( &cxy , &lid ); |
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[457] | 1459 | |
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[611] | 1460 | #if DEBUG_MAIN |
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[635] | 1461 | snprintf( string , 128 , "\n[ksh] main thread started on core[%x,%d]\n", cxy , lid ); |
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| 1462 | display_string( string ); |
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[574] | 1463 | #endif |
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| 1464 | |
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| 1465 | // initializes the semaphore used to synchronize with interactive thread |
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[469] | 1466 | if ( sem_init( &semaphore , 0 , 1 ) ) |
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| 1467 | { |
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| 1468 | printf("\n[KSH ERROR] cannot initialize semaphore\n" ); |
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| 1469 | exit( 1 ); |
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| 1470 | } |
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[457] | 1471 | |
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[611] | 1472 | #if DEBUG_MAIN |
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[635] | 1473 | snprintf( string , 128 , "\n[ksh] main initialized semaphore\n" ); |
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| 1474 | display_string( string ); |
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[574] | 1475 | #endif |
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| 1476 | |
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[446] | 1477 | // initialize interactive thread attributes |
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| 1478 | attr.attributes = PT_ATTR_DETACH | PT_ATTR_CLUSTER_DEFINED; |
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| 1479 | attr.cxy = cxy; |
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| 1480 | |
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| 1481 | // lauch the interactive thread |
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| 1482 | pthread_create( &trdid, |
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| 1483 | &attr, |
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| 1484 | &interactive, // entry function |
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| 1485 | NULL ); |
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[611] | 1486 | #if DEBUG_MAIN |
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[635] | 1487 | snprintf( string , 128 , "\n[ksh] main thread launched interactive thread %x\n", trdid ); |
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| 1488 | display_string( string ); |
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[574] | 1489 | #endif |
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[588] | 1490 | |
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| 1491 | // signal INIT process |
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| 1492 | kill( 1 , SIGCONT ); |
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[446] | 1493 | |
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| 1494 | // enter infinite loop monitoring children processes termination |
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| 1495 | while( 1 ) |
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| 1496 | { |
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[457] | 1497 | // wait children termination |
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| 1498 | child_pid = wait( &status ); |
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[446] | 1499 | |
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[633] | 1500 | if( DEBUG_MAIN ) |
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| 1501 | { |
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| 1502 | if(WIFEXITED (status)) printf("\n[ksh] child process %x exit\n" ,child_pid); |
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| 1503 | if(WIFSIGNALED(status)) printf("\n[ksh] child process %x killed\n" ,child_pid); |
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| 1504 | if(WIFSTOPPED (status)) printf("\n[ksh] child process %x stopped\n",child_pid); |
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| 1505 | } |
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[446] | 1506 | |
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[457] | 1507 | // release semaphore if KSH process is TXT owner, to unblock interactive thread |
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| 1508 | is_fg( parent_pid , &is_owner ); |
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| 1509 | if( is_owner ) sem_post( &semaphore ); |
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[446] | 1510 | } |
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[436] | 1511 | } // end main() |
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[230] | 1512 | |
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[446] | 1513 | |
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