Don't use _SC_MONOTONIC_CLOCK unless USE_CLOCK_GETTIME is defined.

2007-01-08  Matthias Clasen  <mclasen@redhat.com>

        * gthread/gthread-posix.c (g_thread_impl_init): Don't
        use _SC_MONOTONIC_CLOCK unless USE_CLOCK_GETTIME is
        defined.  (#394150)



svn path=/branches/glib-2-12/; revision=5231

ChangeLog

@@ -1,3 +1,25 @@
+2007-01-08  Matthias Clasen  <mclasen@redhat.com>
+
+	* gthread/gthread-posix.c (g_thread_impl_init): Don't
+	use _SC_MONOTONIC_CLOCK unless USE_CLOCK_GETTIME is
+	defined.  (#394150)
+
+2007-01-07  Matthias Clasen  <mclasen@redhat.com>
+
+	Don't link glib against libpthread.  (#393812)
+	
+	* configure.in: Link gthread against librt, not glib itself.
+
+	* glib/gthread.h:
+	* glib/gthread.c: Add a new thread function, gettime.
+
+	* glib/gtimer.c: Use gettime instead of directly working with
+	the various system interfaces.
+
+	* gthread/gthread-impl.c:
+	* gthread/gthread-posix.c:
+	* gthread/gthread-win32.c: Implement gettime.
+	
 2007-01-07  Matthias Clasen  <mclasen@redhat.com>
 
 	* m4macros/glib-2.0.m4: Use PKG_PROG_PKG_CONFIG.  (#392636,

gthread/gthread-impl.c

@@ -332,7 +332,8 @@ g_thread_init (GThreadFunctions* init)
 	       init->thread_join &&
 	       init->thread_exit &&
 	       init->thread_set_priority &&
-	       init->thread_self);
+	       init->thread_self &&
+               init->gettime);
 
   /* if somebody is calling g_thread_init (), it means that he wants to
    * have thread support, so check this

gthread/gthread-posix.c

@@ -119,7 +119,12 @@ static gulong g_thread_min_stack_size = 0;
 
 #define G_MUTEX_SIZE (sizeof (pthread_mutex_t))
 
-#if defined(_SC_THREAD_STACK_MIN) || defined (HAVE_PRIORITIES)
+#if defined(HAVE_CLOCK_GETTIME) && defined(HAVE_MONOTONIC_CLOCK) 
+#define USE_CLOCK_GETTIME 1
+static gint posix_clock = 0;
+#endif
+
+#if defined(_SC_THREAD_STACK_MIN) || defined (HAVE_PRIORITIES) || defined (USE_CLOCK_GETTIME)
 #define HAVE_G_THREAD_IMPL_INIT
 static void
 g_thread_impl_init(void)
@@ -142,6 +147,12 @@ g_thread_impl_init(void)
 # endif
 #endif /* HAVE_PRIORITIES */
 
+#ifdef USE_CLOCK_GETTIME
+ if (sysconf (_SC_MONOTONIC_CLOCK) >= 0)
+   posix_clock = CLOCK_MONOTONIC;
+ else
+   posix_clock = CLOCK_REALTIME;
+#endif
 }
 #endif /* _SC_THREAD_STACK_MIN || HAVE_PRIORITIES */
 
@@ -415,6 +426,24 @@ g_thread_equal_posix_impl (gpointer thread1, gpointer thread2)
   return (pthread_equal (*(pthread_t*)thread1, *(pthread_t*)thread2) != 0);
 }
 
+static guint64
+g_gettime_posix_impl (void)
+{
+#ifdef USE_CLOCK_GETTIME 
+  struct timespec tv;
+
+  clock_gettime (posix_clock, &tv);
+
+  return tv.tv_sec * 1e9 + tv.tv_nsec;
+#else
+  struct timeval tv;
+
+  gettimeofday (&tv, NULL);
+
+  return tv.tv_sec * 1e9 + tv.tv_usec * 1000; 
+#endif
+}
+
 static GThreadFunctions g_thread_functions_for_glib_use_default =
 {
   g_mutex_new_posix_impl,
@@ -437,5 +466,6 @@ static GThreadFunctions g_thread_functions_for_glib_use_default =
   g_thread_exit_posix_impl,
   g_thread_set_priority_posix_impl,
   g_thread_self_posix_impl,
-  g_thread_equal_posix_impl
+  g_thread_equal_posix_impl,
+  g_gettime_posix_impl
 };

gthread/gthread-win32.c

@@ -545,6 +545,16 @@ g_thread_join_win32_impl (gpointer thread)
   g_free (target);
 }
 
+static guint64
+g_gettime_win32_impl (void)
+{
+  guint64 v;
+
+  GetSystemTimeAsFileTime ((FILETIME *)&v);
+
+  return v;
+}
+
 static GThreadFunctions g_thread_functions_for_glib_use_default =
 {
   g_mutex_new_win32_impl,           /* mutex */
@@ -567,7 +577,8 @@ static GThreadFunctions g_thread_functions_for_glib_use_default =
   g_thread_exit_win32_impl,
   g_thread_set_priority_win32_impl,
   g_thread_self_win32_impl,
-  NULL                              /* no equal function necessary */
+  NULL,                             /* no equal function necessary */
+  g_gettime_win32_impl
 };
 
 #define HAVE_G_THREAD_IMPL_INIT