int pipelineWait(struct pipeline *pl)
/* Wait for processes in a pipeline to complete; normally aborts if any
* process exists non-zero. If pipelineNoAbort was specified, return the exit
* code of the first process exit non-zero, or zero if none failed. */
{
struct plProc *proc;
int exitCode = 0;
/* must close before waits for output pipeline */
if (pl->options & pipelineWrite)
closePipeline(pl);
/* wait on each process in order */
for (proc = pl->procs; proc != NULL; proc = proc->next)
{
plProcWait(proc);
if ((WEXITSTATUS(proc->status) != 0) && (exitCode == 0))
exitCode = WEXITSTATUS(proc->status);
}
/* must close after waits for input pipeline */
if (pl->options & pipelineRead)
closePipeline(pl);
return exitCode;
}
int pipelineWait(struct pipeline *pl)
/* Wait for processes in a pipeline to complete; normally aborts if any
* process exists non-zero. If pipelineNoAbort was specified, return the exit
* code of the first process exit non-zero, or zero if none failed. */
{
/* must close before waiting to so processes get pipe EOF */
closePipeline(pl);
return groupLeaderWait(pl);
}
