2012-03-26 19:18:29 +00:00
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/*
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@deftypefn Supplemental int waitpid (int @var{pid}, int *@var{status}, int)
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This is a wrapper around the @code{wait} function. Any ``special''
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values of @var{pid} depend on your implementation of @code{wait}, as
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does the return value. The third argument is unused in @libib{}.
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@end deftypefn
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "ansidecl.h"
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/* On some systems (such as WindISS), you must include <sys/types.h>
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to get the definition of "pid_t" before you include <sys/wait.h>. */
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#include <sys/types.h>
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#ifdef HAVE_SYS_WAIT_H
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#include <sys/wait.h>
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#endif
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2017-10-07 00:16:47 +00:00
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#ifdef __MINGW32__
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#include <process.h>
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#define wait(s) _cwait(s,pid,_WAIT_CHILD)
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#endif
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2012-03-26 19:18:29 +00:00
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pid_t
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waitpid (pid_t pid, int *stat_loc, int options ATTRIBUTE_UNUSED)
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{
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for (;;)
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{
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int wpid = wait(stat_loc);
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if (wpid == pid || wpid == -1)
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return wpid;
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}
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}
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