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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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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