gcc/
[official-gcc.git] / libiberty / waitpid.c
blobfd519d7696e074573f37b204c0a8485d5a2b8d0f
1 /*
3 @deftypefn Supplemental int waitpid (int @var{pid}, int *@var{status}, int)
5 This is a wrapper around the @code{wait} function. Any ``special''
6 values of @var{pid} depend on your implementation of @code{wait}, as
7 does the return value. The third argument is unused in @libib{}.
9 @end deftypefn
13 #ifdef HAVE_CONFIG_H
14 #include "config.h"
15 #endif
16 #include "ansidecl.h"
18 /* On some systems (such as WindISS), you must include <sys/types.h>
19 to get the definition of "pid_t" before you include <sys/wait.h>. */
20 #include <sys/types.h>
22 #ifdef HAVE_SYS_WAIT_H
23 #include <sys/wait.h>
24 #endif
26 pid_t
27 waitpid (pid_t pid, int *stat_loc, int options ATTRIBUTE_UNUSED)
29 for (;;)
31 int wpid = wait(stat_loc);
32 if (wpid == pid || wpid == -1)
33 return wpid;