summaryrefslogtreecommitdiff
path: root/gsm-receiver/src/lib/decoder/openbtsstuff/Threads.h
diff options
context:
space:
mode:
Diffstat (limited to 'gsm-receiver/src/lib/decoder/openbtsstuff/Threads.h')
-rw-r--r--gsm-receiver/src/lib/decoder/openbtsstuff/Threads.h150
1 files changed, 150 insertions, 0 deletions
diff --git a/gsm-receiver/src/lib/decoder/openbtsstuff/Threads.h b/gsm-receiver/src/lib/decoder/openbtsstuff/Threads.h
new file mode 100644
index 0000000..14cff04
--- /dev/null
+++ b/gsm-receiver/src/lib/decoder/openbtsstuff/Threads.h
@@ -0,0 +1,150 @@
+/*
+* Copyright 2008 Free Software Foundation, Inc.
+*
+* This software is distributed under the terms of the GNU Public License.
+* See the COPYING file in the main directory for details.
+
+ This program 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 3 of the License, or
+ (at your option) any later version.
+
+ This program 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 this program. If not, see <http://www.gnu.org/licenses/>.
+
+*/
+
+
+#ifndef THREADS_H
+#define THREADS_H
+
+
+#include <pthread.h>
+#include <iostream>
+#include "Assert.h"
+
+class Mutex;
+
+
+/**@name Multithreaded access for standard streams. */
+//@{
+
+/**@name Functions for gStreamLock. */
+//@{
+extern Mutex gStreamLock; ///< global lock for cout and cerr
+void lockCerr(); ///< call prior to writing cerr
+void unlockCerr(); ///< call after writing cerr
+void lockCout(); ///< call prior to writing cout
+void unlockCout(); ///< call after writing cout
+//@}
+
+/**@name Macros for standard messages. */
+//@{
+#define COUT(text) { lockCout(); std::cout << text; unlockCout(); }
+#define CERR(text) { lockCerr(); std::cerr << __FILE__ << ":" << __LINE__ << ": " << text; unlockCerr(); }
+#ifdef NDEBUG
+#define DCOUT(text) {}
+#define OBJDCOUT(text) {}
+#else
+#define DCOUT(text) { COUT(__FILE__ << ":" << __LINE__ << " " << text); }
+#define OBJDCOUT(text) { DCOUT(this << " " << text); }
+#endif
+//@}
+//@}
+
+
+
+/**@defgroup C++ wrappers for pthread mechanisms. */
+//@{
+
+/** A class for recursive mutexes based on pthread_mutex. */
+class Mutex {
+
+ private:
+
+ pthread_mutex_t mMutex;
+ pthread_mutexattr_t mAttribs;
+
+ public:
+
+ Mutex();
+
+ ~Mutex();
+
+ void lock() { pthread_mutex_lock(&mMutex); }
+
+ void unlock() { pthread_mutex_unlock(&mMutex); }
+
+ friend class Signal;
+
+};
+
+
+
+/** A C++ interthread signal based on pthread condition variables. */
+class Signal {
+
+ private:
+
+ mutable pthread_cond_t mSignal;
+
+ public:
+
+ Signal() { assert(!pthread_cond_init(&mSignal,NULL)); }
+
+ ~Signal() { pthread_cond_destroy(&mSignal); }
+
+ /** Block for the signal up to the cancellation timeout. */
+ void wait(Mutex& wMutex, unsigned timeout=1000000000) const;
+
+ void signal() { pthread_cond_signal(&mSignal); }
+
+ void broadcast() { pthread_cond_broadcast(&mSignal); }
+
+};
+
+
+
+#define START_THREAD(thread,function,argument) \
+ thread.start((void *(*)(void*))function, (void*)argument);
+
+/** A C++ wrapper for pthread threads. */
+class Thread {
+
+ private:
+
+ pthread_t mThread;
+ pthread_attr_t mAttrib;
+ const static size_t mStackSize=4*65536;
+
+
+ public:
+
+ /** Create a thread in a non-running state. */
+ Thread():mThread((pthread_t)0) { }
+
+ /**
+ Destroy the Thread.
+ It should be stopped and joined.
+ */
+ ~Thread() { assert(!pthread_attr_destroy(&mAttrib)); }
+
+
+ /** Start the thread on a task. */
+ void start(void *(*task)(void*), void *arg);
+
+ /** Join a thread that will stop on its own. */
+ void join() { assert(!pthread_join(mThread,NULL)); }
+
+};
+
+
+
+
+#endif
+// vim: ts=4 sw=4
personal git repositories of Harald Welte. Your mileage may vary