36 lines
1.2 KiB
C
36 lines
1.2 KiB
C
#ifndef __LIB_BITS_WAITSTATUS_H__
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# define __LIB_BITS_WAITSTATUS_H__
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/* If WIFEXITED(STATUS), the low-order 8 bits of the status. */
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#define __WEXITSTATUS(status) (((status) & 0xff00) >> 8)
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/* If WIFSIGNALED(STATUS), the terminating signal. */
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#define __WTERMSIG(status) ((status) & 0x7f)
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/* If WIFSTOPPED(STATUS), the signal that stopped the child. */
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#define __WSTOPSIG(status) __WEXITSTATUS(status)
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/* Nonzero if STATUS indicates normal termination. */
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#define __WIFEXITED(status) (__WTERMSIG(status) == 0)
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/* Nonzero if STATUS indicates termination by a signal. */
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#define __WIFSIGNALED(status) \
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(((signed char) (((status) & 0x7f) + 1) >> 1) > 0)
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/* Nonzero if STATUS indicates the child is stopped. */
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#define __WIFSTOPPED(status) (((status) & 0xff) == 0x7f)
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/* Nonzero if STATUS indicates the child continued after a stop. */
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# define __WIFCONTINUED(status) ((status) == __W_CONTINUED)
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/* Nonzero if STATUS indicates the child dumped core. */
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#define __WCOREDUMP(status) ((status) & __WCOREFLAG)
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/* Macros for constructing status values. */
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#define __W_EXITCODE(ret, sig) ((ret) << 8 | (sig))
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#define __W_STOPCODE(sig) ((sig) << 8 | 0x7f)
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#define __W_CONTINUED 0xffff
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#define __WCOREFLAG 0x80
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#endif /*__LIB_BITS_WAITSTATUS_H__*/
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