waitpid.c revision 89857
116239Sjkh/*
24Srgrimes
3509Srgrimes@deftypefn Supplemental int waitpid (int @var{pid}, int *@var{status}, int)
437581Sbde
54SrgrimesThis is a wrapper around the @code{wait} function.  Any ``special''
6509Srgrimesvalues of @var{pid} depend on your implementation of @code{wait}, as
7509Srgrimesdoes the return value.  The third argument is unused in @libib{}.
84Srgrimes
94Srgrimes@end deftypefn
104Srgrimes
114Srgrimes*/
124Srgrimes
134Srgrimes#ifdef HAVE_CONFIG_H
144Srgrimes#include "config.h"
154Srgrimes#endif
164Srgrimes#ifdef HAVE_SYS_WAIT_H
174Srgrimes#include <sys/wait.h>
184Srgrimes#endif
1930640Speter
2037580Sbdeint
2130640Speterwaitpid (pid, stat_loc, options)
2225083Sjdp	int pid, *stat_loc, options;
2325537Sdfr{
2425083Sjdp  for (;;)
2525083Sjdp    {
2627674Sphk      int wpid = wait(stat_loc);
2727674Sphk      if (wpid == pid || wpid == -1)
282056Swollman	return wpid;
292056Swollman    }
302056Swollman}
314Srgrimes