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Last change
on this file since 444 was
444,
checked in by satin@…, 6 years ago
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add newlib,libalmos-mkh, restructure shared_syscalls.h and mini-libc
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File size:
1.2 KB
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| Rev | Line | |
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| [444] | 1 | #ifndef _SHARED_WAIT_H_ |
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| 2 | #define _SHARED_WAIT_H_ |
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| 3 | |
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| 4 | /********************************************************************************************* |
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| 5 | * These macros can be used by the parent process to analyze a child process |
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| 6 | * termination status, as returned by the wait() syscall. |
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| 7 | * The termination state is a 32 bits word: |
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| 8 | * - the 8 LSB bits contain the user defined exit status |
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| 9 | * - the 24 other bits contain the flags defined below |
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| 10 | ********************************************************************************************/ |
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| 11 | |
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| 12 | |
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| 13 | #define PROCESS_TERM_STOP 0x100 /*! process received a SIGSTOP signal */ |
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| 14 | #define PROCESS_TERM_KILL 0x200 /*! process killed by a SIGKILL signal */ |
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| 15 | #define PROCESS_TERM_EXIT 0x400 /*! process terminated by a sys_exit() */ |
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| 16 | #define PROCESS_TERM_WAIT 0x800 /*! parent process executed a sys_wait() */ |
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| 17 | |
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| 18 | #define WIFEXITED( status ) (status & PROCESS_TERM_EXIT) |
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| 19 | #define WIFSIGNALED( status ) (status & PROCESS_TERM_KILL) |
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| 20 | #define WIFSTOPPED( status ) (status & PROCESS_TERM_STOP) |
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| 21 | #define WEXITSTATUS( status ) (status & 0xFF) |
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| 22 | |
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| 23 | #define WNOHANG -1 // TODO Not in almos-mkh |
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| 24 | |
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| 25 | #endif |
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| 26 | |
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