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authorjcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>2006-08-03 04:51:51 +0000
committerjcorgan <jcorgan@221aa14e-8319-0410-a670-987f0aec2ac5>2006-08-03 04:51:51 +0000
commit5d69a524f81f234b3fbc41d49ba18d6f6886baba (patch)
treeb71312bf7f1e8d10fef0f3ac6f28784065e73e72 /gr-audio-osx/src/mld_threads.h
Houston, we have a trunk.
git-svn-id: http://gnuradio.org/svn/gnuradio/trunk@3122 221aa14e-8319-0410-a670-987f0aec2ac5
Diffstat (limited to 'gr-audio-osx/src/mld_threads.h')
-rw-r--r--gr-audio-osx/src/mld_threads.h255
1 files changed, 255 insertions, 0 deletions
diff --git a/gr-audio-osx/src/mld_threads.h b/gr-audio-osx/src/mld_threads.h
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+++ b/gr-audio-osx/src/mld_threads.h
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+/* -*- c++ -*- */
+/*
+ * Copyright 2006 Free Software Foundation, Inc.
+ *
+ * This file is part of GNU Radio.
+ *
+ * GNU Radio is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2, or (at your option)
+ * any later version.
+ *
+ * GNU Radio 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 General Public License
+ * along with GNU Radio; see the file COPYING. If not, write to
+ * the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ * Boston, MA 02111-1307, USA.
+ */
+
+#ifndef _INCLUDED_MLD_THREADS_H_
+#define _INCLUDED_MLD_THREADS_H_
+
+/* classes which allow for either pthreads or omni_threads */
+
+#ifdef _USE_OMNI_THREADS_
+#include <gnuradio/omnithread.h>
+#else
+#include <pthread.h>
+#endif
+
+#include <stdexcept>
+
+#define __INLINE__ inline
+
+class mld_condition_t;
+
+class mld_mutex_t {
+#ifdef _USE_OMNI_THREADS_
+ typedef omni_mutex l_mutex, *l_mutex_ptr;
+#else
+ typedef pthread_mutex_t l_mutex, *l_mutex_ptr;
+#endif
+
+ friend class mld_condition_t;
+
+private:
+ l_mutex_ptr d_mutex;
+
+protected:
+ inline l_mutex_ptr mutex () { return (d_mutex); };
+
+public:
+ __INLINE__ mld_mutex_t () {
+#ifdef _USE_OMNI_THREADS_
+ d_mutex = new omni_mutex ();
+#else
+ d_mutex = (l_mutex_ptr) new l_mutex;
+ int l_ret = pthread_mutex_init (d_mutex, NULL);
+ if (l_ret != 0) {
+ fprintf (stderr, "Error %d creating mutex.\n", l_ret);
+ throw std::runtime_error ("mld_mutex_t::mld_mutex_t()\n");
+ }
+#endif
+ };
+
+ __INLINE__ ~mld_mutex_t () {
+ unlock ();
+#ifndef _USE_OMNI_THREADS_
+ int l_ret = pthread_mutex_destroy (d_mutex);
+ if (l_ret != 0) {
+ fprintf (stderr, "mld_mutex_t::~mld_mutex_t(): "
+ "Error %d destroying mutex.\n", l_ret);
+ }
+#endif
+ delete d_mutex;
+ d_mutex = NULL;
+ };
+
+ __INLINE__ void lock () {
+#ifdef _USE_OMNI_THREADS_
+ d_mutex->lock ();
+#else
+ int l_ret = pthread_mutex_lock (d_mutex);
+ if (l_ret != 0) {
+ fprintf (stderr, "mld_mutex_t::lock(): "
+ "Error %d locking mutex.\n", l_ret);
+ }
+#endif
+ };
+
+ __INLINE__ void unlock () {
+#ifdef _USE_OMNI_THREADS_
+ d_mutex->unlock ();
+#else
+ int l_ret = pthread_mutex_unlock (d_mutex);
+ if (l_ret != 0) {
+ fprintf (stderr, "mld_mutex_t::unlock(): "
+ "Error %d locking mutex.\n", l_ret);
+ }
+#endif
+ };
+
+ __INLINE__ bool trylock () {
+#ifdef _USE_OMNI_THREADS_
+ int l_ret = d_mutex->trylock ();
+#else
+ int l_ret = pthread_mutex_unlock (d_mutex);
+#endif
+ return (l_ret == 0 ? true : false);
+ };
+
+ inline void acquire () { lock(); };
+ inline void release () { unlock(); };
+ inline void wait () { lock(); };
+ inline void post () { unlock(); };
+};
+
+typedef mld_mutex_t mld_mutex, *mld_mutex_ptr;
+
+class mld_condition_t {
+#ifdef _USE_OMNI_THREADS_
+ typedef omni_condition l_condition, *l_condition_ptr;
+#else
+ typedef pthread_cond_t l_condition, *l_condition_ptr;
+#endif
+
+private:
+ l_condition_ptr d_condition;
+ mld_mutex_ptr d_mutex;
+ bool d_waiting;
+
+public:
+ __INLINE__ mld_condition_t () {
+ d_waiting = false;
+ d_mutex = new mld_mutex ();
+#ifdef _USE_OMNI_THREADS_
+ d_condition = new omni_condition (d_mutex->mutex ());
+#else
+ d_condition = (l_condition_ptr) new l_condition;
+ int l_ret = pthread_cond_init (d_condition, NULL);
+ if (l_ret != 0) {
+ fprintf (stderr, "Error %d creating condition.\n", l_ret);
+ throw std::runtime_error ("mld_condition_t::mld_condition_t()\n");
+ }
+#endif
+ };
+
+ __INLINE__ ~mld_condition_t () {
+ signal ();
+#ifndef _USE_OMNI_THREADS_
+ int l_ret = pthread_cond_destroy (d_condition);
+ if (l_ret != 0) {
+ fprintf (stderr, "mld_condition_t::mld_condition_t(): "
+ "Error %d destroying condition.\n", l_ret);
+ }
+#endif
+ delete d_condition;
+ d_condition = NULL;
+ delete d_mutex;
+ d_mutex = NULL;
+ };
+
+ __INLINE__ void signal () {
+ if (d_waiting == true) {
+#ifdef _USE_OMNI_THREADS_
+ d_condition->signal ();
+#else
+ int l_ret = pthread_cond_signal (d_condition);
+ if (l_ret != 0) {
+ fprintf (stderr, "mld_condition_t::signal(): "
+ "Error %d.\n", l_ret);
+ }
+#endif
+ d_waiting = false;
+ }
+ };
+
+ __INLINE__ void wait () {
+ if (d_waiting == false) {
+ d_waiting = true;
+#ifdef _USE_OMNI_THREADS_
+ d_condition->wait ();
+#else
+ int l_ret = pthread_cond_wait (d_condition, d_mutex->mutex ());
+ if (l_ret != 0) {
+ fprintf (stderr, "mld_condition_t::wait(): "
+ "Error %d.\n", l_ret);
+ }
+#endif
+ }
+ };
+};
+
+typedef mld_condition_t mld_condition, *mld_condition_ptr;
+
+class mld_thread_t {
+#ifdef _USE_OMNI_THREADS_
+ typedef omni_thread l_thread, *l_thread_ptr;
+#else
+ typedef pthread_t l_thread, *l_thread_ptr;
+#endif
+
+private:
+#ifndef _USE_OMNI_THREADS_
+ l_thread d_thread;
+ void (*d_start_routine)(void*);
+ void *d_arg;
+#else
+ l_thread_ptr d_thread;
+#endif
+
+#ifndef _USE_OMNI_THREADS_
+ static void* local_start_routine (void *arg) {
+ mld_thread_t* This = (mld_thread_t*) arg;
+ (*(This->d_start_routine))(This->d_arg);
+ return (NULL);
+ };
+#endif
+
+public:
+ __INLINE__ mld_thread_t (void (*start_routine)(void *), void *arg) {
+#ifdef _USE_OMNI_THREADS_
+ d_thread = new omni_thread (start_routine, arg);
+ d_thread->start ();
+#else
+ d_start_routine = start_routine;
+ d_arg = arg;
+ int l_ret = pthread_create (&d_thread, NULL, local_start_routine, this);
+ if (l_ret != 0) {
+ fprintf (stderr, "Error %d creating thread.\n", l_ret);
+ throw std::runtime_error ("mld_thread_t::mld_thread_t()\n");
+ }
+#endif
+ };
+
+ __INLINE__ ~mld_thread_t () {
+#ifdef _USE_OMNI_THREADS_
+// delete d_thread;
+ d_thread = NULL;
+#else
+ int l_ret = pthread_detach (d_thread);
+ if (l_ret != 0) {
+ fprintf (stderr, "Error %d detaching thread.\n", l_ret);
+ throw std::runtime_error ("mld_thread_t::~mld_thread_t()\n");
+ }
+#endif
+ };
+};
+
+typedef mld_thread_t mld_thread, *mld_thread_ptr;
+
+#endif /* _INCLUDED_MLD_THREADS_H_ */
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