diff options
author | chai <chaifix@163.com> | 2018-08-07 00:17:24 +0800 |
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committer | chai <chaifix@163.com> | 2018-08-07 00:17:24 +0800 |
commit | e4eeedbd6faaef380b58236745856b50cebf4461 (patch) | |
tree | 9284fe65848c41526d1d429400c425e47b888504 /src/libjin/Thread | |
parent | f5e72dd12fc47f082a4f6d14090391410aa8a9f1 (diff) |
*update
Diffstat (limited to 'src/libjin/Thread')
-rw-r--r-- | src/libjin/Thread/Thread.cpp | 67 | ||||
-rw-r--r-- | src/libjin/Thread/Thread.h | 129 |
2 files changed, 123 insertions, 73 deletions
diff --git a/src/libjin/Thread/Thread.cpp b/src/libjin/Thread/Thread.cpp index 06975f7..374778b 100644 --- a/src/libjin/Thread/Thread.cpp +++ b/src/libjin/Thread/Thread.cpp @@ -23,6 +23,7 @@ namespace thread friend class Conditional; }; + // ̼߳signal wait class Conditional { public: @@ -43,15 +44,19 @@ namespace thread Lock(Mutex* m) : mutex(m) { mutex->lock(); } + Lock(Mutex& m) : mutex(&m) { mutex->lock(); } + ~Lock() { mutex->unlock(); } private: Mutex* mutex; + Lock(Lock&) {} + }; ////////////////////////////////////////////////////////////////////// @@ -137,33 +142,43 @@ namespace thread { } - void Thread::ThreadData::set(std::string name, Value value) + void Thread::ThreadData::set(int slot, Variant value) { - //if (share.count(name) != 0); - share[name] = value; + Lock l(mutex); + share[slot] = value; } - Thread::Value Thread::ThreadData::get(std::string name) + Thread::Variant Thread::ThreadData::get(int slot) { - return share[name]; + Lock l(mutex); + return share[slot]; } - bool Thread::ThreadData::exist(const std::string& name) + bool Thread::ThreadData::exist(int slot) { - return share.count(name) == 1; + Lock l(mutex); + return share.count(slot) == 1; } - void Thread::ThreadData::remove(std::string name) + void Thread::ThreadData::remove(int slot) { Lock l(mutex); - if (exist(name)) + if (exist(slot)) { - share.erase(name); + share.erase(slot); } } ////////////////////////////////////////////////////////////////////// + int Thread::ThreadFunciton(void* p) + { + Thread* thread = (Thread*)p; + if (thread->threadRunner != nullptr) + thread->threadRunner(thread); + return 0; + } + Thread::Thread(const std::string tname, ThreadRunner runner) : name(tname) , running(false) @@ -204,7 +219,7 @@ namespace thread #endif } #if JIN_THREAD_SDL - handle = SDL_CreateThread(threadRunner, name.c_str(), this); + handle = SDL_CreateThread(ThreadFunciton, name.c_str(), this); #elif JIN_THREAD_CPP handle = new std::thread(); #endif @@ -238,35 +253,45 @@ namespace thread mutex->unlock(); } - void Thread::send(std::string name, Value value) + void Thread::send(int slot, Variant value) { lock(); - common->set(name, value); + common->set(slot, value); unlock(); condition->broadcast(); } - bool Thread::receive(std::string name) + bool Thread::receive(int slot) { - return common->exist(name); + return common->exist(slot); } - Thread::Value Thread::fetch(std::string name) + Thread::Variant Thread::fetch(int slot) { - Thread::Value v = common->get(name); + Thread::Variant v = common->get(slot); return v; } - Thread::Value Thread::demand(std::string name) + Thread::Variant Thread::demand(int slot) { + /** + * pthread_mutex_lock(mtx); + * while(pass == 0) + * { + * pthread_mutex_unlock(mtx); + * pthread_cond_just_wait(cv); + * pthread_mutex_lock(mtx); + * } + * pthread_mutex_unlock(mtx); + */ lock(); - while (!common->exist(name)) + while (!common->exist(slot)) { - if (common->exist("error")) + if (common->exist(ThreadData::SLOT_ERROR)) return 0; condition->wait(mutex); } - Thread::Value v = common->get(name); + Thread::Variant v = common->get(slot); unlock(); return v; } diff --git a/src/libjin/Thread/Thread.h b/src/libjin/Thread/Thread.h index 4996705..aeb0d9e 100644 --- a/src/libjin/Thread/Thread.h +++ b/src/libjin/Thread/Thread.h @@ -17,54 +17,48 @@ namespace jin { namespace thread { - /* - * ӢӢMutual exclusionд Mutexһڶ̱߳Уֹ߳ͬʱͬһԴ - * ȫֱждĻơĿͨƬһһٽcritical sectionɡٽ - * ָһԹԴзʵĴ룬һֻƻ㷨һ̡߳̿ӵжٽDz - * һӦûҪ˻ƵԴУꡢСжϴڶеĴ - * ݡͬ״̬ȵԴάЩԴͬһºǺѵģΪһ߳̿κһʱ̱ͣ - * ߣָѣ - */ + /** + * ӢӢMutual exclusionд Mutexһڶ̱߳Уֹ߳ͬʱͬһԴ + * ȫֱждĻơĿͨƬһһٽcritical sectionɡٽ + * ָһԹԴзʵĴ룬һֻƻ㷨һ̡߳̿ӵжٽDz + * һӦûҪ˻ƵԴУꡢСжϴڶеĴ + * ݡͬ״̬ȵԴάЩԴͬһºǺѵģΪһ߳̿κһʱ̱ͣ + * ߣָѣ + */ class Mutex; class Conditional; - /* - * Thread:demand Receive a message from a thread. Wait for the message to exist before returning. - * Thread:getName Get the name of a thread. - * Thread:kill Forcefully terminate the thread. - * Thread:peek Receive a message from a thread, but leave it in the message box. - * Thread:receive Receive a message from a thread. - * Thread:send Send a message. - * Thread:set Set a value. - * Thread:start Starts the thread. - * Thread:wait Wait for a thread to finish. - */ + /** + * Thread::demand Receive a message from a thread. Wait for the message to exist before returning. + * Thread::getName Get the name of a thread. + * Thread::kill Forcefully terminate the thread. + * Thread::peek Receive a message from a thread, but leave it in the message box. + * Thread::receive Receive a message from a thread. + * Thread::send Send a message. + * Thread::set Set a value. + * Thread::start Starts the thread. + * Thread::wait Wait for a thread to finish. + */ class Thread { public: - union Value + + union Variant { - enum - { - INTEGER, - REAL, - BOOL, - STRING, - POINTER - } type; - int integer; - float real; bool boolean; + char character; const char* cstring; void* pointer; + float real; - Value() {}; - Value(int i) : integer(i), type(INTEGER){}; - Value(float r) : real(r), type(REAL) {}; - Value(bool b) : boolean(b), type(BOOL) {}; - Value(const char* cstr) : cstring(cstr), type(STRING) {}; - Value(void* p) : pointer(p), type(POINTER) {}; + Variant() {}; + Variant(int i) : integer(i) {}; + Variant(float f) : real(f) {}; + Variant(bool b) : boolean(b) {}; + Variant(char c) : character(c) {}; + Variant(const char* s) : cstring(s) {}; + Variant(void* p) : pointer(p) {}; }; private: @@ -73,36 +67,36 @@ namespace thread public: ThreadData(Mutex*, Conditional*); ~ThreadData(); - bool exist(const std::string& name); - void set(std::string name, Value value); - Value get(std::string name); - void remove(std::string name); + bool exist(int slot); + void set(int slot, Variant value); + Variant get(int slot); + void remove(int slot); Conditional* condition; Mutex* mutex; + static const int SLOT_ERROR = -1; + static const int SLOT_WARN = -2; + private: - std::map<std::string, Value> share; // threads shared value - std::map<std::string, void*> sharevalue; + std::map<int, Variant> share; // threads shared value }; public: - typedef int(ThreadRunner)(void* /*ThreadData*/); + typedef void(ThreadRunner)(Thread* thread); Thread(const std::string name, ThreadRunner threadfuncs); ~Thread(); bool start(); void wait(); - void send(std::string name, Value value); - bool receive(std::string name); - Value fetch(std::string name); - Value demand(std::string name); + void send(int slot, Variant value); + bool receive(int slot); + Variant fetch(int slot); + Variant demand(int slot); const char* getName(); bool isRunning(); - //void kill(); - //Value peek(); - - private: void lock(); void unlock(); + + private: #if JIN_THREAD_SDL SDL_Thread* handle; // SDL thread #elif JIN_THREAD_CPP @@ -112,9 +106,40 @@ namespace thread Conditional* condition; // condition variable ThreadRunner* threadRunner; // thread function ThreadData* common; // threads common data - const std::string name; // thread name + const std::string name; // thread name, for debugging purposes + /** + * https://stackoverflow.com/questions/149932/naming-conventions-for-threads + * + * Use short names because they don't make the lines in a log file too long. + * + * Create names where the important part is at the beginning. Log viewers in a + * graphical user interface tend to have tables with columns, and the thread + * column is usually small or will be made small by you to read everything else. + * + * Do not use the word "thread" in the thread name because it is obvious. + * + * Make the thread names easily grep-able. Avoid similar sounding thread names + * + * If you have several threads of the same nature, enumerate them with IDs that + * are unique to one execution of the application or one log file, whichever fits + * your logging habits. + * + * Avoid generalizations like "WorkerThread" (how do you name the next 5 worker + * threads?), "GUIThread" (which GUI? is it for one window? for everything?) or + * "Calculation" (what does it calculate?). + * + * If you have a test group that uses thread names to grep your application's log + * files, do not rename your threads after some time. Your testers will hate you for + * doing so. Thread names in well-tested applications should be there to stay. + * + * When you have threads that service a network connection, try to include the target + * network address in the thread name (e.g. channel_123.212.123.3). Don't forget about + * enumeration though if there are multiple connections to the same host. + */ bool running; // running + static int ThreadFunciton(void* p); + }; } // thread |