1 /* 2 3 @deftypefn Supplemental int waitpid (int @var{pid}, int *@var{status}, int) 4 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{}. 8 9 @end deftypefn 10 11 */ 12 13 #ifdef HAVE_CONFIG_H 14 #include "config.h" 15 #endif 16 #include "ansidecl.h" 17 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> 21 22 #ifdef HAVE_SYS_WAIT_H 23 #include <sys/wait.h> 24 #endif 25 26 pid_t 27 waitpid (pid_t pid, int *stat_loc, int options ATTRIBUTE_UNUSED) 28 { 29 for (;;) 30 { 31 int wpid = wait(stat_loc); 32 if (wpid == pid || wpid == -1) 33 return wpid; 34 } 35 } 36
