|
0
|
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 }
|
