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ext/pcntl: pcntl_fork refining error handling. #14021

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Merged
merged 1 commit into from
Apr 20, 2024
Merged

ext/pcntl: pcntl_fork refining error handling. #14021

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21 changes: 20 additions & 1 deletion ext/pcntl/pcntl.c
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Original file line number Diff line number Diff line change
Expand Up @@ -203,7 +203,26 @@ PHP_FUNCTION(pcntl_fork)
id = fork();
if (id == -1) {
PCNTL_G(last_error) = errno;
php_error_docref(NULL, E_WARNING, "Error %d", errno);
switch (errno) {
case EAGAIN:
php_error_docref(NULL, E_WARNING, "Error %d: Reached the maximum limit of number of processes", errno);
break;
case ENOMEM:
php_error_docref(NULL, E_WARNING, "Error %d: Insufficient memory", errno);
break;
// unlikely, especially nowadays.
case ENOSYS:
php_error_docref(NULL, E_WARNING, "Error %d: Unimplemented", errno);
break;
// QNX is the only platform returning it so far and is a different case from EAGAIN.
// Retries can be handled with sleep eventually.
case EBADF:
php_error_docref(NULL, E_WARNING, "Error %d: File descriptor concurrency issue", errno);
break;
default:
php_error_docref(NULL, E_WARNING, "Error %d", errno);

}
} else if (id == 0) {
zend_max_execution_timer_init();
}
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