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authorPierre Ossman <ossman@cendio.se>2006-09-01 18:16:55 +0000
committerPierre Ossman <ossman@cendio.se>2006-09-01 18:16:55 +0000
commit3571bf1699d1fa42b5d24fcf62eea867f0fe9903 (patch)
tree3c5debdd8e5697b2955691a25454f8795cff6c42 /src
parent97202d1b2d1638df147a369f4476060f608b568f (diff)
Thread implementation for Win32.
git-svn-id: file:///home/lennart/svn/public/pulseaudio/trunk@1356 fefdeb5f-60dc-0310-8127-8f9354f1896f
Diffstat (limited to 'src')
-rw-r--r--src/Makefile.am16
-rw-r--r--src/pulsecore/mutex-win32.c133
-rw-r--r--src/pulsecore/thread-win32.c246
3 files changed, 392 insertions, 3 deletions
diff --git a/src/Makefile.am b/src/Makefile.am
index 3b79acad..5043197c 100644
--- a/src/Makefile.am
+++ b/src/Makefile.am
@@ -580,6 +580,7 @@ libpulsecore_la_SOURCES += \
pulsecore/modargs.c pulsecore/modargs.h \
pulsecore/modinfo.c pulsecore/modinfo.h \
pulsecore/module.c pulsecore/module.h \
+ pulsecore/mutex.h \
pulsecore/namereg.c pulsecore/namereg.h \
pulsecore/pid.c pulsecore/pid.h \
pulsecore/pipe.c pulsecore/pipe.h \
@@ -602,19 +603,28 @@ libpulsecore_la_SOURCES += \
pulsecore/source.c pulsecore/source.h \
pulsecore/source-output.c pulsecore/source-output.h \
pulsecore/strbuf.c pulsecore/strbuf.h \
+ pulsecore/thread.h \
pulsecore/tokenizer.c pulsecore/tokenizer.h \
pulsecore/winsock.h \
pulsecore/core-error.c pulsecore/core-error.h \
pulsecore/hook-list.c pulsecore/hook-list.h \
- pulsecore/shm.c pulsecore/shm.h \
- pulsecore/mutex-posix.c pulsecore/mutex.h \
- pulsecore/thread-posix.c pulsecore/thread.h
+ pulsecore/shm.c pulsecore/shm.h
if OS_IS_WIN32
libpulsecore_la_SOURCES += \
pulsecore/dllmain.c
endif
+if OS_IS_WIN32
+libpulsecore_la_SOURCES += \
+ pulsecore/mutex-win32.c \
+ pulsecore/thread-win32.c
+else
+libpulsecore_la_SOURCES += \
+ pulsecore/mutex-posix.c \
+ pulsecore/thread-posix.c
+endif
+
libpulsecore_la_CPPFLAGS = $(AM_CPPFLAGS) $(LIBOIL_CFLAGS)
libpulsecore_la_LDFLAGS = -version-info $(LIBPULSECORE_VERSION_INFO)
libpulsecore_la_LIBADD = $(AM_LIBADD) $(LIBLTDL) $(LIBSAMPLERATE_LIBS) $(LIBSNDFILE_LIBS) $(WINSOCK_LIBS) $(LIBOIL_LIBS) $(LIBICONV)
diff --git a/src/pulsecore/mutex-win32.c b/src/pulsecore/mutex-win32.c
new file mode 100644
index 00000000..3710d914
--- /dev/null
+++ b/src/pulsecore/mutex-win32.c
@@ -0,0 +1,133 @@
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ 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
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <windows.h>
+
+#include <pulse/xmalloc.h>
+#include <pulsecore/hashmap.h>
+
+#include "mutex.h"
+
+struct pa_mutex {
+ CRITICAL_SECTION mutex;
+};
+
+struct pa_cond {
+ pa_hashmap *wait_events;
+};
+
+pa_mutex* pa_mutex_new(int recursive) {
+ pa_mutex *m;
+
+ m = pa_xnew(pa_mutex, 1);
+
+ InitializeCriticalSection(&m->mutex);
+
+ return m;
+}
+
+void pa_mutex_free(pa_mutex *m) {
+ assert(m);
+
+ DeleteCriticalSection(&m->mutex);
+ pa_xfree(m);
+}
+
+void pa_mutex_lock(pa_mutex *m) {
+ assert(m);
+
+ EnterCriticalSection(&m->mutex);
+}
+
+void pa_mutex_unlock(pa_mutex *m) {
+ assert(m);
+
+ LeaveCriticalSection(&m->mutex);
+}
+
+pa_cond *pa_cond_new(void) {
+ pa_cond *c;
+
+ c = pa_xnew(pa_cond, 1);
+ c->wait_events = pa_hashmap_new(NULL, NULL);
+ assert(c->wait_events);
+
+ return c;
+}
+
+void pa_cond_free(pa_cond *c) {
+ assert(c);
+
+ pa_hashmap_free(c->wait_events, NULL, NULL);
+ pa_xfree(c);
+}
+
+void pa_cond_signal(pa_cond *c, int broadcast) {
+ assert(c);
+
+ if (pa_hashmap_size(c->wait_events) == 0)
+ return;
+
+ if (broadcast)
+ SetEvent(pa_hashmap_get_first(c->wait_events));
+ else {
+ void *iter;
+ const void *key;
+ HANDLE event;
+
+ iter = NULL;
+ while (1) {
+ pa_hashmap_iterate(c->wait_events, &iter, &key);
+ if (key == NULL)
+ break;
+ event = (HANDLE)pa_hashmap_get(c->wait_events, key);
+ SetEvent(event);
+ }
+ }
+}
+
+int pa_cond_wait(pa_cond *c, pa_mutex *m) {
+ HANDLE event;
+
+ assert(c);
+ assert(m);
+
+ event = CreateEvent(NULL, FALSE, FALSE, NULL);
+ assert(event);
+
+ pa_hashmap_put(c->wait_events, event, event);
+
+ pa_mutex_unlock(m);
+
+ WaitForSingleObject(event, INFINITE);
+
+ pa_mutex_lock(m);
+
+ pa_hashmap_remove(c->wait_events, event);
+
+ CloseHandle(event);
+
+ return 0;
+}
diff --git a/src/pulsecore/thread-win32.c b/src/pulsecore/thread-win32.c
new file mode 100644
index 00000000..bdcc5b2c
--- /dev/null
+++ b/src/pulsecore/thread-win32.c
@@ -0,0 +1,246 @@
+/* $Id$ */
+
+/***
+ This file is part of PulseAudio.
+
+ 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
+ USA.
+***/
+
+#ifdef HAVE_CONFIG_H
+#include <config.h>
+#endif
+
+#include <stdio.h>
+
+#include <windows.h>
+
+#include <pulse/xmalloc.h>
+#include <pulsecore/log.h>
+
+#include "thread.h"
+
+struct pa_thread {
+ HANDLE thread;
+ pa_thread_func_t thread_func;
+ void *userdata;
+};
+
+struct pa_tls {
+ DWORD index;
+ pa_free_cb_t free_func;
+};
+
+struct pa_tls_monitor {
+ HANDLE thread;
+ pa_free_cb_t free_func;
+ void *data;
+};
+
+static pa_tls *thread_tls = NULL;
+static pa_tls *monitor_tls = NULL;
+
+static void thread_tls_once_func(void) {
+ HANDLE mutex;
+ char name[64];
+
+ sprintf(name, "pulse%d", (int)GetCurrentProcessId());
+
+ mutex = CreateMutex(NULL, FALSE, name);
+ assert(mutex);
+
+ WaitForSingleObject(mutex, INFINITE);
+
+ if (thread_tls == NULL) {
+ thread_tls = pa_tls_new(NULL);
+ assert(thread_tls);
+ }
+
+ ReleaseMutex(mutex);
+
+ CloseHandle(mutex);
+}
+
+static DWORD WINAPI internal_thread_func(LPVOID param) {
+ pa_thread *t = param;
+ assert(t);
+
+ thread_tls_once_func();
+ pa_tls_set(thread_tls, t);
+
+ t->thread_func(t->userdata);
+
+ return 0;
+}
+
+pa_thread* pa_thread_new(pa_thread_func_t thread_func, void *userdata) {
+ pa_thread *t;
+
+ assert(thread_func);
+
+ t = pa_xnew(pa_thread, 1);
+ t->thread_func = thread_func;
+ t->userdata = userdata;
+
+ t->thread = CreateThread(NULL, 0, internal_thread_func, t, 0, NULL);
+
+ if (!t->thread) {
+ pa_xfree(t);
+ return NULL;
+ }
+
+ return t;
+}
+
+int pa_thread_is_running(pa_thread *t) {
+ DWORD code;
+
+ assert(t);
+
+ if (!GetExitCodeThread(t->thread, &code))
+ return 0;
+
+ return code == STILL_ACTIVE;
+}
+
+void pa_thread_free(pa_thread *t) {
+ assert(t);
+
+ pa_thread_join(t);
+ CloseHandle(t->thread);
+ pa_xfree(t);
+}
+
+int pa_thread_join(pa_thread *t) {
+ assert(t);
+
+ if (WaitForSingleObject(t->thread, INFINITE) == WAIT_FAILED)
+ return -1;
+
+ return 0;
+}
+
+pa_thread* pa_thread_self(void) {
+ thread_tls_once_func();
+ return pa_tls_get(thread_tls);
+}
+
+void pa_thread_yield(void) {
+ Sleep(0);
+}
+
+static void monitor_tls_once_func(void) {
+ HANDLE mutex;
+ char name[64];
+
+ sprintf(name, "pulse%d", (int)GetCurrentProcessId());
+
+ mutex = CreateMutex(NULL, FALSE, name);
+ assert(mutex);
+
+ WaitForSingleObject(mutex, INFINITE);
+
+ if (monitor_tls == NULL) {
+ monitor_tls = pa_tls_new(NULL);
+ assert(monitor_tls);
+ pa_tls_set(monitor_tls, NULL);
+ }
+
+ ReleaseMutex(mutex);
+
+ CloseHandle(mutex);
+}
+
+static DWORD WINAPI monitor_thread_func(LPVOID param) {
+ struct pa_tls_monitor *m = param;
+ assert(m);
+
+ WaitForSingleObject(m->thread, INFINITE);
+
+ CloseHandle(m->thread);
+
+ m->free_func(m->data);
+
+ pa_xfree(m);
+
+ return 0;
+}
+
+pa_tls* pa_tls_new(pa_free_cb_t free_cb) {
+ pa_tls *t;
+
+ t = pa_xnew(pa_tls, 1);
+ t->index = TlsAlloc();
+ t->free_func = free_cb;
+
+ if (t->index == TLS_OUT_OF_INDEXES) {
+ pa_xfree(t);
+ return NULL;
+ }
+
+ return t;
+}
+
+void pa_tls_free(pa_tls *t) {
+ assert(t);
+
+ TlsFree(t->index);
+ pa_xfree(t);
+}
+
+void *pa_tls_get(pa_tls *t) {
+ assert(t);
+
+ return TlsGetValue(t->index);
+}
+
+void *pa_tls_set(pa_tls *t, void *userdata) {
+ void *r;
+
+ assert(t);
+
+ r = TlsGetValue(t->index);
+
+ TlsSetValue(t->index, userdata);
+
+ if (t->free_func) {
+ struct pa_tls_monitor *m;
+
+ monitor_tls_once_func();
+
+ m = pa_tls_get(monitor_tls);
+ if (!m) {
+ HANDLE thread;
+
+ m = pa_xnew(struct pa_tls_monitor, 1);
+
+ DuplicateHandle(GetCurrentProcess(), GetCurrentThread(),
+ GetCurrentProcess(), &m->thread, 0, FALSE,
+ DUPLICATE_SAME_ACCESS);
+
+ m->free_func = t->free_func;
+
+ pa_tls_set(monitor_tls, m);
+
+ thread = CreateThread(NULL, 0, monitor_thread_func, m, 0, NULL);
+ assert(thread);
+ CloseHandle(thread);
+ }
+
+ m->data = userdata;
+ }
+
+ return r;
+}