don't stack-allocate specialized vectors on non-conservtive control stacks

[sbcl.git] / src / runtime / darwin-os.c

diff --git a/src/runtime/darwin-os.c b/src/runtime/darwin-os.c
index 2d79d06..df53e98 100644 (file)
--- a/src/runtime/darwin-os.c
+++ b/src/runtime/darwin-os.c
@@ -21,6 +21,7 @@
 #include <signal.h>
 #include <limits.h>
 #include <mach-o/dyld.h>
+#include <stdio.h>
 #include <errno.h>
 #include <dlfcn.h>
 
@@ -36,8 +37,6 @@ os_get_runtime_executable_path(int external)
 
     if (_NSGetExecutablePath(path, &size) == -1)
         return NULL;
-    else
-        path[size] = '\0';
 
     return copied_string(path);
 }
@@ -166,5 +165,55 @@ mach_fork() {
     }
 }
 
+void darwin_init(void)
+{
+    setup_mach_exception_handling_thread();
+}
+
 #endif
 
+#ifdef LISP_FEATURE_SB_THREAD
+
+inline void
+os_sem_init(os_sem_t *sem, unsigned int value)
+{
+    if (KERN_SUCCESS!=semaphore_create(current_mach_task, sem, SYNC_POLICY_FIFO, (int)value))
+        lose("os_sem_init(%p): %s", sem, strerror(errno));
+}
+
+inline void
+os_sem_wait(os_sem_t *sem, char *what)
+{
+    kern_return_t ret;
+  restart:
+    FSHOW((stderr, "%s: os_sem_wait(%p)\n", what, sem));
+    ret = semaphore_wait(*sem);
+    FSHOW((stderr, "%s: os_sem_wait(%p) => %s\n", what, sem,
+           KERN_SUCCESS==ret ? "ok" : strerror(errno)));
+    switch (ret) {
+    case KERN_SUCCESS:
+        return;
+    case KERN_OPERATION_TIMED_OUT:
+        fprintf(stderr, "%s: os_sem_wait(%p): %s", what, sem, strerror(errno));
+        goto restart;
+    default:
+        lose("%s: os_sem_wait(%p): %s", what, sem, strerror(errno));
+    }
+}
+
+void
+os_sem_post(os_sem_t *sem, char *what)
+{
+    if (KERN_SUCCESS!=semaphore_signal(*sem))
+        lose("%s: os_sem_post(%p): %s", what, sem, strerror(errno));
+    FSHOW((stderr, "%s: os_sem_post(%p) ok\n", what, sem));
+}
+
+void
+os_sem_destroy(os_sem_t *sem)
+{
+    if (-1==semaphore_destroy(current_mach_task, *sem))
+        lose("os_sem_destroy(%p): %s", sem, strerror(errno));
+}
+
+#endif