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Annotation of 42BSD/usr.lib/libU77/wait_.c, revision 1.1.1.1

1.1       root        1: /*
                      2: char id_wait[] = "@(#)wait_.c  1.1";
                      3:  *
                      4:  * wait for a child to die
                      5:  *
                      6:  * calling sequence:
                      7:  *     integer wait, status, chilid
                      8:  *     chilid = wait(status)
                      9:  * where:
                     10:  *     chilid will be  - >0 if child process id
                     11:  *                     - <0 if (negative of) system error code
                     12:  *     status will contain the exit status of the child
                     13:  *             (see wait(2))
                     14:  */
                     15: 
                     16: extern int errno;
                     17: 
                     18: long wait_(status)
                     19: long *status;
                     20: {
                     21:        int stat;
                     22:        int chid = wait(&stat);
                     23:        if (chid < 0)
                     24:                return((long)(-errno));
                     25:        *status = (long)stat;
                     26:        return((long)chid);
                     27: }

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