fix(process): don't call sigprocmask if there is no ignored signals

joelwurtz · joelwurtz · commit 9d269eab5c14 · 2024-04-05T11:07:32.000+02:00
diff --git a/src/Symfony/Component/Process/Process.php b/src/Symfony/Component/Process/Process.php
@@ -350,7 +350,7 @@ public function start(?callable $callback = null, array $env = []): void
 
         $oldMask = [];
 
-        if (\function_exists('pcntl_sigprocmask')) {
+        if (\function_exists('pcntl_sigprocmask') && $this->ignoredSignals) {
             // we block signals we want to ignore, as proc_open will use fork / posix_spawn which will copy the signal mask this allow to block
             // signals in the child process
             pcntl_sigprocmask(\SIG_BLOCK, $this->ignoredSignals, $oldMask);
@@ -359,7 +359,7 @@ public function start(?callable $callback = null, array $env = []): void
         try {
             $process = @proc_open($commandline, $descriptors, $this->processPipes->pipes, $this->cwd, $envPairs, $this->options);
         } finally {
-            if (\function_exists('pcntl_sigprocmask')) {
+            if (\function_exists('pcntl_sigprocmask') && $this->ignoredSignals) {
                 // we restore the signal mask here to avoid any side effects
                 pcntl_sigprocmask(\SIG_SETMASK, $oldMask);
             }
