]> git.sesse.net Git - vlc/blobdiff - include/vlc_threads.h
contrib: fix flac conf on OSX
[vlc] / include / vlc_threads.h
index 6bf0fb538b10fbabe6d4c017b82b6a62609a6c6a..0575523a1141c65c645e5a489554fe259a68bd78 100644 (file)
 #elif defined( WIN32 )
 #   include <process.h>                                         /* Win32 API */
 
+#elif defined( __OS2__ )                                        /* OS/2 API  */
+#   include <errno.h>
+
+#   define pthread_sigmask  sigprocmask
+
 #else                                         /* pthreads (like Linux & BSD) */
 #   define LIBVLC_USE_PTHREAD 1
 #   define LIBVLC_USE_PTHREAD_CANCEL 1
 #   define VLC_THREAD_PRIORITY_HIGHEST \
         THREAD_PRIORITY_TIME_CRITICAL
 
+#elif defined(__OS2__)
+#   define VLC_THREAD_PRIORITY_LOW      0
+#   define VLC_THREAD_PRIORITY_INPUT    MAKESHORT( PRTYD_MAXIMUM / 2, PRTYC_REGULAR )
+#   define VLC_THREAD_PRIORITY_AUDIO    MAKESHORT( PRTYD_MAXIMUM, PRTYC_REGULAR )
+#   define VLC_THREAD_PRIORITY_VIDEO    0
+#   define VLC_THREAD_PRIORITY_OUTPUT   MAKESHORT( PRTYD_MAXIMUM / 2, PRTYC_REGULAR )
+#   define VLC_THREAD_PRIORITY_HIGHEST  MAKESHORT( 0, PRTYC_TIMECRITICAL )
+
 #else
 #   define VLC_THREAD_PRIORITY_LOW 0
 #   define VLC_THREAD_PRIORITY_INPUT 0
@@ -111,6 +124,7 @@ typedef pthread_mutex_t vlc_mutex_t;
 typedef pthread_cond_t  vlc_cond_t;
 #define VLC_STATIC_COND  PTHREAD_COND_INITIALIZER
 typedef pthread_rwlock_t vlc_rwlock_t;
+#define VLC_STATIC_RWLOCK PTHREAD_RWLOCK_INITIALIZER
 typedef pthread_key_t   vlc_threadvar_t;
 typedef struct vlc_timer *vlc_timer_t;
 
@@ -143,21 +157,73 @@ typedef struct
     HANDLE   handle;
     unsigned clock;
 } vlc_cond_t;
+#define VLC_STATIC_COND { 0, 0 }
 
 typedef HANDLE  vlc_sem_t;
 
 typedef struct
 {
     vlc_mutex_t   mutex;
-    vlc_cond_t    read_wait;
-    vlc_cond_t    write_wait;
+    vlc_cond_t    wait;
     unsigned long readers;
     unsigned long writers;
     DWORD         writer;
 } vlc_rwlock_t;
+#define VLC_STATIC_RWLOCK \
+    { VLC_STATIC_MUTEX, VLC_STATIC_COND, 0, 0, 0 }
 
 typedef struct vlc_threadvar *vlc_threadvar_t;
 typedef struct vlc_timer *vlc_timer_t;
+
+#elif defined( __OS2__ )
+typedef struct vlc_thread *vlc_thread_t;
+
+typedef struct
+{
+    bool dynamic;
+    union
+    {
+        struct
+        {
+            bool locked;
+            unsigned long contention;
+        };
+        HMTX hmtx;
+    };
+} vlc_mutex_t;
+
+#define VLC_STATIC_MUTEX { false, { { false, 0 } } }
+
+typedef struct
+{
+    HEV      hev;
+    unsigned clock;
+} vlc_cond_t;
+
+#define VLC_STATIC_COND { 0, 0 }
+
+typedef struct
+{
+    HEV  hev;
+    HMTX wait_mutex;
+    HMTX count_mutex;
+    int  count;
+} vlc_sem_t;
+
+typedef struct
+{
+    vlc_mutex_t   mutex;
+    vlc_cond_t    wait;
+    unsigned long readers;
+    unsigned long writers;
+    int           writer;
+} vlc_rwlock_t;
+#define VLC_STATIC_RWLOCK \
+    { VLC_STATIC_MUTEX, VLC_STATIC_COND, 0, 0, 0 }
+
+typedef struct vlc_threadvar *vlc_threadvar_t;
+typedef struct vlc_timer *vlc_timer_t;
+
 #endif
 
 #if defined( WIN32 ) && !defined ETIMEDOUT
@@ -200,11 +266,73 @@ VLC_API void vlc_cancel(vlc_thread_t);
 VLC_API void vlc_join(vlc_thread_t, void **);
 VLC_API void vlc_control_cancel (int cmd, ...);
 
+VLC_API mtime_t mdate(void);
+VLC_API void mwait(mtime_t deadline);
+VLC_API void msleep(mtime_t delay);
+
+#define VLC_HARD_MIN_SLEEP   10000 /* 10 milliseconds = 1 tick at 100Hz */
+#define VLC_SOFT_MIN_SLEEP 9000000 /* 9 seconds */
+
+#if VLC_GCC_VERSION(4,3)
+/* Linux has 100, 250, 300 or 1000Hz
+ *
+ * HZ=100 by default on FreeBSD, but some architectures use a 1000Hz timer
+ */
+
+static
+__attribute__((unused))
+__attribute__((noinline))
+__attribute__((error("sorry, cannot sleep for such short a time")))
+mtime_t impossible_delay( mtime_t delay )
+{
+    (void) delay;
+    return VLC_HARD_MIN_SLEEP;
+}
+
+static
+__attribute__((unused))
+__attribute__((noinline))
+__attribute__((warning("use proper event handling instead of short delay")))
+mtime_t harmful_delay( mtime_t delay )
+{
+    return delay;
+}
+
+# define check_delay( d ) \
+    ((__builtin_constant_p(d < VLC_HARD_MIN_SLEEP) \
+   && (d < VLC_HARD_MIN_SLEEP)) \
+       ? impossible_delay(d) \
+       : ((__builtin_constant_p(d < VLC_SOFT_MIN_SLEEP) \
+       && (d < VLC_SOFT_MIN_SLEEP)) \
+           ? harmful_delay(d) \
+           : d))
+
+static
+__attribute__((unused))
+__attribute__((noinline))
+__attribute__((error("deadlines can not be constant")))
+mtime_t impossible_deadline( mtime_t deadline )
+{
+    return deadline;
+}
+
+# define check_deadline( d ) \
+    (__builtin_constant_p(d) ? impossible_deadline(d) : d)
+#else
+# define check_delay(d) (d)
+# define check_deadline(d) (d)
+#endif
+
+#define msleep(d) msleep(check_delay(d))
+#define mwait(d) mwait(check_deadline(d))
+
 VLC_API int vlc_timer_create(vlc_timer_t *, void (*) (void *), void *) VLC_USED;
 VLC_API void vlc_timer_destroy(vlc_timer_t);
 VLC_API void vlc_timer_schedule(vlc_timer_t, bool, mtime_t, mtime_t);
 VLC_API unsigned vlc_timer_getoverrun(vlc_timer_t) VLC_USED;
 
+VLC_API unsigned vlc_GetCPUCount(void);
+
 #ifndef LIBVLC_USE_PTHREAD_CANCEL
 enum {
     VLC_CLEANUP_PUSH,
@@ -417,6 +545,8 @@ enum {
    VLC_AVCODEC_MUTEX = 0,
    VLC_GCRYPT_MUTEX,
    VLC_XLIB_MUTEX,
+   VLC_MOSAIC_MUTEX,
+   VLC_HIGHLIGHT_MUTEX,
    /* Insert new entry HERE */
    VLC_MAX_MUTEX
 };