1 #ifndef foopulsethreadhfoo 2 #define foopulsethreadhfoo 3 4 /*** 5 This file is part of PulseAudio. 6 7 Copyright 2006 Lennart Poettering 8 Copyright 2006 Pierre Ossman <ossman@cendio.se> for Cendio AB 9 10 PulseAudio is free software; you can redistribute it and/or modify 11 it under the terms of the GNU Lesser General Public License as 12 published by the Free Software Foundation; either version 2.1 of the 13 License, or (at your option) any later version. 14 15 PulseAudio is distributed in the hope that it will be useful, but 16 WITHOUT ANY WARRANTY; without even the implied warranty of 17 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 18 General Public License for more details. 19 20 You should have received a copy of the GNU Lesser General Public 21 License along with PulseAudio; if not, see <http://www.gnu.org/licenses/>. 22 ***/ 23 24 #include <pulse/def.h> 25 #include <pulse/gccmacro.h> 26 27 #include <pulsecore/once.h> 28 #include <pulsecore/core-util.h> 29 30 #ifndef PACKAGE 31 #error "Please include config.h before including this file!" 32 #endif 33 34 typedef struct pa_thread pa_thread; 35 36 typedef void (*pa_thread_func_t) (void *userdata); 37 38 pa_thread* pa_thread_new(const char *name, pa_thread_func_t thread_func, void *userdata); 39 void pa_thread_free(pa_thread *t); 40 void pa_thread_free_nojoin(pa_thread *t); 41 int pa_thread_join(pa_thread *t); 42 int pa_thread_is_running(pa_thread *t); 43 pa_thread *pa_thread_self(void); 44 void pa_thread_yield(void); 45 46 void* pa_thread_get_data(pa_thread *t); 47 void pa_thread_set_data(pa_thread *t, void *userdata); 48 49 const char *pa_thread_get_name(pa_thread *t); 50 void pa_thread_set_name(pa_thread *t, const char *name); 51 52 typedef struct pa_tls pa_tls; 53 54 pa_tls* pa_tls_new(pa_free_cb_t free_cb); 55 void pa_tls_free(pa_tls *t); 56 void * pa_tls_get(pa_tls *t); 57 void *pa_tls_set(pa_tls *t, void *userdata); 58 59 #define PA_STATIC_TLS_DECLARE(name, free_cb) \ 60 static struct { \ 61 pa_once once; \ 62 pa_tls *volatile tls; \ 63 } name##_tls = { \ 64 .once = PA_ONCE_INIT, \ 65 .tls = NULL \ 66 }; \ 67 static void name##_tls_init(void) { \ 68 name##_tls.tls = pa_tls_new(free_cb); \ 69 } \ 70 static inline pa_tls* name##_tls_obj(void) { \ 71 pa_run_once(&name##_tls.once, name##_tls_init); \ 72 return name##_tls.tls; \ 73 } \ 74 static void name##_tls_destructor(void) PA_GCC_DESTRUCTOR; \ 75 static void name##_tls_destructor(void) { \ 76 static void (*_free_cb)(void*) = free_cb; \ 77 if (!pa_in_valgrind()) \ 78 return; \ 79 if (!name##_tls.tls) \ 80 return; \ 81 if (_free_cb) { \ 82 void *p; \ 83 if ((p = pa_tls_get(name##_tls.tls))) \ 84 _free_cb(p); \ 85 } \ 86 pa_tls_free(name##_tls.tls); \ 87 } \ 88 static inline void* name##_tls_get(void) { \ 89 return pa_tls_get(name##_tls_obj()); \ 90 } \ 91 static inline void* name##_tls_set(void *p) { \ 92 return pa_tls_set(name##_tls_obj(), p); \ 93 } \ 94 struct __stupid_useless_struct_to_allow_trailing_semicolon 95 96 #if defined(SUPPORT_TLS___THREAD) && !defined(OS_IS_WIN32) 97 /* An optimized version of the above that requires no dynamic 98 * allocation if the compiler supports __thread */ 99 #define PA_STATIC_TLS_DECLARE_NO_FREE(name) \ 100 static __thread void *name##_tls = NULL; \ 101 static inline void* name##_tls_get(void) { \ 102 return name##_tls; \ 103 } \ 104 static inline void* name##_tls_set(void *p) { \ 105 void *r = name##_tls; \ 106 name##_tls = p; \ 107 return r; \ 108 } \ 109 struct __stupid_useless_struct_to_allow_trailing_semicolon 110 #else 111 #define PA_STATIC_TLS_DECLARE_NO_FREE(name) PA_STATIC_TLS_DECLARE(name, NULL) 112 #endif 113 114 #define PA_STATIC_TLS_GET(name) (name##_tls_get()) 115 #define PA_STATIC_TLS_SET(name, p) (name##_tls_set(p)) 116 117 #endif 118