s390x: fix s390-virtio-serial

[qemu.git] / audio / audio_pt_int.c

diff --git a/audio/audio_pt_int.c b/audio/audio_pt_int.c
index e889a983b1f91b89b86bf25ac8af891bc16eb30b..908c569a92031398d0e8150239c18fd47982f108 100644 (file)
--- a/audio/audio_pt_int.c
+++ b/audio/audio_pt_int.c
@@ -6,7 +6,10 @@
 #include "audio_int.h"
 #include "audio_pt_int.h"
 
-static void logerr (struct audio_pt *pt, int err, const char *fmt, ...)
+#include <signal.h>
+
+static void GCC_FMT_ATTR(3, 4) logerr (struct audio_pt *pt, int err,
+                                       const char *fmt, ...)
 {
     va_list ap;
 
@@ -23,9 +26,16 @@ int audio_pt_init (struct audio_pt *p, void *(*func) (void *),
 {
     int err, err2;
     const char *efunc;
+    sigset_t set, old_set;
 
     p->drv = drv;
 
+    err = sigfillset (&set);
+    if (err) {
+        logerr (p, errno, "%s(%s): sigfillset failed", cap, AUDIO_FUNC);
+        return -1;
+    }
+
     err = pthread_mutex_init (&p->mutex, NULL);
     if (err) {
         efunc = "pthread_mutex_init";
@@ -38,7 +48,23 @@ int audio_pt_init (struct audio_pt *p, void *(*func) (void *),
         goto err1;
     }
 
+    err = pthread_sigmask (SIG_BLOCK, &set, &old_set);
+    if (err) {
+        efunc = "pthread_sigmask";
+        goto err2;
+    }
+
     err = pthread_create (&p->thread, NULL, func, opaque);
+
+    err2 = pthread_sigmask (SIG_SETMASK, &old_set, NULL);
+    if (err2) {
+        logerr (p, err2, "%s(%s): pthread_sigmask (restore) failed",
+                cap, AUDIO_FUNC);
+        /* We have failed to restore original signal mask, all bets are off,
+           so terminate the process */
+        exit (EXIT_FAILURE);
+    }
+
     if (err) {
         efunc = "pthread_create";
         goto err2;