/***
This file is part of PulseAudio.
-
+
+ Copyright 2006 Lennart Poettering
+ Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB
+
PulseAudio is free software; you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
-
+
PulseAudio is distributed in the hope that it will be useful, but
WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
General Public License for more details.
-
+
You should have received a copy of the GNU Lesser General Public
License along with PulseAudio; if not, write to the Free Software
Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
***/
#include <pulse/def.h>
+#include <pulsecore/once.h>
-#define PA_THREAD_ONCE_INIT 0
+#ifndef PACKAGE
+#error "Please include config.h before including this file!"
+#endif
typedef struct pa_thread pa_thread;
typedef void (*pa_thread_func_t) (void *userdata);
-typedef void (*pa_thread_once_func_t) (void);
-typedef unsigned int pa_thread_once_t;
pa_thread* pa_thread_new(pa_thread_func_t thread_func, void *userdata);
void pa_thread_free(pa_thread *t);
int pa_thread_is_running(pa_thread *t);
pa_thread *pa_thread_self(void);
void pa_thread_yield(void);
-void pa_thread_once(pa_thread_once_t *control, pa_thread_once_func_t once_func);
+
+void* pa_thread_get_data(pa_thread *t);
+void pa_thread_set_data(pa_thread *t, void *userdata);
typedef struct pa_tls pa_tls;
void * pa_tls_get(pa_tls *t);
void *pa_tls_set(pa_tls *t, void *userdata);
+#define PA_STATIC_TLS_DECLARE(name, free_cb) \
+ static struct { \
+ pa_once once; \
+ pa_tls *tls; \
+ } name##_tls = { \
+ .once = PA_ONCE_INIT, \
+ .tls = NULL \
+ }; \
+ static void name##_tls_init(void) { \
+ name##_tls.tls = pa_tls_new(free_cb); \
+ } \
+ static inline pa_tls* name##_tls_obj(void) { \
+ pa_run_once(&name##_tls.once, name##_tls_init); \
+ return name##_tls.tls; \
+ } \
+ static void name##_tls_destructor(void) PA_GCC_DESTRUCTOR; \
+ static void name##_tls_destructor(void) { \
+ static void (*_free_cb)(void*) = free_cb; \
+ if (!name##_tls.tls) \
+ return; \
+ if (_free_cb) { \
+ void *p; \
+ if ((p = pa_tls_get(name##_tls.tls))) \
+ _free_cb(p); \
+ } \
+ pa_tls_free(name##_tls.tls); \
+ } \
+ static inline void* name##_tls_get(void) { \
+ return pa_tls_get(name##_tls_obj()); \
+ } \
+ static inline void* name##_tls_set(void *p) { \
+ return pa_tls_set(name##_tls_obj(), p); \
+ } \
+ struct __stupid_useless_struct_to_allow_trailing_semicolon
+
+#ifdef HAVE_TLS_BUILTIN
+/* An optimized version of the above that requires no dynamic
+ * allocation if the compiler supports __thread */
+#define PA_STATIC_TLS_DECLARE_NO_FREE(name) \
+ static __thread void *name##_tls = NULL; \
+ static inline void* name##_tls_get(void) { \
+ return name##_tls; \
+ } \
+ static inline void* name##_tls_set(void *p) { \
+ void *r = name##_tls; \
+ name##_tls = p; \
+ return r; \
+ } \
+ struct __stupid_useless_struct_to_allow_trailing_semicolon
+#else
+#define PA_STATIC_TLS_DECLARE_NO_FREE(name) PA_STATIC_TLS_DECLARE(name, NULL)
+#endif
+
+#define PA_STATIC_TLS_GET(name) (name##_tls_get())
+#define PA_STATIC_TLS_SET(name, p) (name##_tls_set(p))
+
#endif