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author | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
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committer | Ben Cheng <bccheng@google.com> | 2012-10-01 10:30:31 -0700 |
commit | 82bcbebce43f0227f506d75a5b764b6847041bae (patch) | |
tree | fe9f8597b48a430c4daeb5123e3e8eb28e6f9da9 /gcc-4.7/libiberty/waitpid.c | |
parent | 3c052de3bb16ac53b6b6ed659ec7557eb84c7590 (diff) | |
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Initial check-in of gcc 4.7.2.
Change-Id: I4a2f5a921c21741a0e18bda986d77e5f1bef0365
Diffstat (limited to 'gcc-4.7/libiberty/waitpid.c')
-rw-r--r-- | gcc-4.7/libiberty/waitpid.c | 35 |
1 files changed, 35 insertions, 0 deletions
diff --git a/gcc-4.7/libiberty/waitpid.c b/gcc-4.7/libiberty/waitpid.c new file mode 100644 index 000000000..fd519d769 --- /dev/null +++ b/gcc-4.7/libiberty/waitpid.c @@ -0,0 +1,35 @@ +/* + +@deftypefn Supplemental int waitpid (int @var{pid}, int *@var{status}, int) + +This is a wrapper around the @code{wait} function. Any ``special'' +values of @var{pid} depend on your implementation of @code{wait}, as +does the return value. The third argument is unused in @libib{}. + +@end deftypefn + +*/ + +#ifdef HAVE_CONFIG_H +#include "config.h" +#endif +#include "ansidecl.h" + +/* On some systems (such as WindISS), you must include <sys/types.h> + to get the definition of "pid_t" before you include <sys/wait.h>. */ +#include <sys/types.h> + +#ifdef HAVE_SYS_WAIT_H +#include <sys/wait.h> +#endif + +pid_t +waitpid (pid_t pid, int *stat_loc, int options ATTRIBUTE_UNUSED) +{ + for (;;) + { + int wpid = wait(stat_loc); + if (wpid == pid || wpid == -1) + return wpid; + } +} |