Fix conversions from pointer to int and vice versa

[qemu.git] / cpus.c

diff --git a/cpus.c b/cpus.c
index e0bcb5c721d83b2f7f1d87061cff69223ee3066d..b6e658da6252a91638aa132aa8e0e93c87d68571 100644 (file)
--- a/cpus.c
+++ b/cpus.c
@@ -278,7 +278,7 @@ static void qemu_event_increment(void)
 
 static void qemu_event_read(void *opaque)
 {
-    int fd = (unsigned long)opaque;
+    int fd = (intptr_t)opaque;
     ssize_t len;
     char buffer[512];
 
@@ -306,7 +306,7 @@ static int qemu_event_init(void)
         goto fail;
     }
     qemu_set_fd_handler2(fds[0], NULL, qemu_event_read, NULL,
-                         (void *)(unsigned long)fds[0]);
+                         (void *)(intptr_t)fds[0]);
 
     io_thread_fd = fds[1];
     return 0;
@@ -327,7 +327,7 @@ static void dummy_signal(int sig)
  */
 static void sigfd_handler(void *opaque)
 {
-    int fd = (unsigned long) opaque;
+    int fd = (intptr_t)opaque;
     struct qemu_signalfd_siginfo info;
     struct sigaction action;
     ssize_t len;
@@ -395,7 +395,7 @@ static int qemu_signal_init(void)
     fcntl_setfl(sigfd, O_NONBLOCK);
 
     qemu_set_fd_handler2(sigfd, NULL, sigfd_handler, NULL,
-                         (void *)(unsigned long) sigfd);
+                         (void *)(intptr_t)sigfd);
 
     return 0;
 }
@@ -854,25 +854,48 @@ static void *qemu_tcg_cpu_thread_fn(void *arg)
     return NULL;
 }
 
+static void qemu_cpu_kick_thread(CPUState *env)
+{
+#ifndef _WIN32
+    int err;
+
+    err = pthread_kill(env->thread->thread, SIG_IPI);
+    if (err) {
+        fprintf(stderr, "qemu:%s: %s", __func__, strerror(err));
+        exit(1);
+    }
+#else /* _WIN32 */
+    if (!qemu_cpu_is_self(env)) {
+        SuspendThread(env->thread->thread);
+        cpu_signal(0);
+        ResumeThread(env->thread->thread);
+    }
+#endif
+}
+
 void qemu_cpu_kick(void *_env)
 {
     CPUState *env = _env;
 
     qemu_cond_broadcast(env->halt_cond);
     if (!env->thread_kicked) {
-        qemu_thread_signal(env->thread, SIG_IPI);
+        qemu_cpu_kick_thread(env);
         env->thread_kicked = true;
     }
 }
 
 void qemu_cpu_kick_self(void)
 {
+#ifndef _WIN32
     assert(cpu_single_env);
 
     if (!cpu_single_env->thread_kicked) {
-        qemu_thread_signal(cpu_single_env->thread, SIG_IPI);
+        qemu_cpu_kick_thread(cpu_single_env);
         cpu_single_env->thread_kicked = true;
     }
+#else
+    abort();
+#endif
 }
 
 int qemu_cpu_is_self(void *_env)
@@ -889,7 +912,7 @@ void qemu_mutex_lock_iothread(void)
     } else {
         qemu_mutex_lock(&qemu_fair_mutex);
         if (qemu_mutex_trylock(&qemu_global_mutex)) {
-            qemu_thread_signal(tcg_cpu_thread, SIG_IPI);
+            qemu_cpu_kick_thread(first_cpu);
             qemu_mutex_lock(&qemu_global_mutex);
         }
         qemu_mutex_unlock(&qemu_fair_mutex);