Commit | Line | Data |
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39423523 DD |
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 | ||
90aaccd1 JL |
13 | #ifdef HAVE_CONFIG_H |
14 | #include "config.h" | |
15 | #endif | |
cafa3917 DD |
16 | |
17 | /* On some systems (such as WindISS), you must include <sys/types.h> | |
18 | to get the definition of "pid_t" before you include <sys/wait.h>. */ | |
19 | #include <sys/types.h> | |
20 | ||
90aaccd1 JL |
21 | #ifdef HAVE_SYS_WAIT_H |
22 | #include <sys/wait.h> | |
23 | #endif | |
24 | ||
cafa3917 | 25 | pid_t |
252b5132 | 26 | waitpid (pid, stat_loc, options) |
cafa3917 DD |
27 | pid_t pid; |
28 | int *stat_loc, options; | |
252b5132 RH |
29 | { |
30 | for (;;) | |
31 | { | |
32 | int wpid = wait(stat_loc); | |
33 | if (wpid == pid || wpid == -1) | |
34 | return wpid; | |
35 | } | |
36 | } |