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fix bug causing programs executed inside a forked task (ex. running imagemagick) to always return status -1

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This commit is contained in:
jygaulier
2012-07-05 17:10:35 +02:00
parent 634d3ae319
commit 94f4ddcd4b
1 changed files with 27 additions and 7 deletions
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34
lib/classes/task/Scheduler.class.php
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@@ -108,10 +108,6 @@ class task_Scheduler
$this->log(sprintf("running scheduler with method %s", $this->method));
if ($this->method == self::METHOD_FORK) {
pcntl_signal(SIGCHLD, SIG_IGN);
}
$conn = appbox::get_instance(\bootstrap::getCore())->get_connection();
$taskPoll = array(); // the poll of tasks
@@ -230,7 +226,8 @@ class task_Scheduler
$task->getID(), '--runner=scheduler'
),
"killat" => null,
"sigterm_sent" => false
"sigterm_sent" => false,
"pid" => false
);
if ($this->method == self::METHOD_PROC_OPEN) {
$taskPoll[$tkey]['process'] = NULL;
@@ -293,7 +290,17 @@ class task_Scheduler
@proc_close($taskPoll[$tkey]["process"]);
$taskPoll[$tkey]["process"] = null;
} elseif ($this->method == self::METHOD_FORK) {
$pid = $taskPoll[$tkey]['pid'];
if ($pid) {
$status = NULL;
if (pcntl_waitpid($pid, $status, WNOHANG) === $pid) {
// pid has quit
$taskPoll[$tkey]['pid'] = false;
}
}
}
if ($schedstatus == 'started') {
$taskPoll[$tkey]["task"]->setState(task_abstract::STATE_TOSTART);
}
@@ -332,13 +339,14 @@ class task_Scheduler
sleep(2); // let the process lock and write it's pid
}
if (is_resource($taskPoll[$tkey]["process"]) && $taskPoll[$tkey]['task']->getPID() !== null) {
if (is_resource($taskPoll[$tkey]["process"]) && ($pid = $taskPoll[$tkey]['task']->getPID()) !== null) {
$taskPoll[$tkey]['pid'] = $pid;
$this->log(
sprintf(
"Task %s '%s' started (pid=%s)"
, $taskPoll[$tkey]['task']->getID()
, $taskPoll[$tkey]["cmd"] . ' ' . implode(' ', $taskPoll[$tkey]["args"])
, $taskPoll[$tkey]['task']->getPID()
, $pid
)
);
$runningtask ++;
@@ -380,6 +388,9 @@ class task_Scheduler
$this->log(sprintf("exec('%s %s')", $taskPoll[$tkey]["cmd"], implode(' ', $taskPoll[$tkey]["args"])));
pcntl_exec($taskPoll[$tkey]["cmd"], $taskPoll[$tkey]["args"]);
} else {
// parent (scheduler)
$taskPoll[$tkey]['pid'] = $pid;
}
}
break;
@@ -517,6 +528,15 @@ class task_Scheduler
$taskPoll[$tkey]["process"] = null;
}
} elseif ($this->method == self::METHOD_FORK) {
$pid = $taskPoll[$tkey]['pid'];
if ($pid) {
$status = NULL;
if (pcntl_waitpid($pid, $status, WNOHANG) === $pid) {
// pid has quit
$taskPoll[$tkey]['pid'] = false;
}
}
}
break;
}