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Minor tweaks to remove warnings 

git-svn-id: https://svn.microneil.com/svn/CodeDweller/trunk@8 d34b734f-a00e-4b39-a726-e4eeb87269ab
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madscientist 15 年之前
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共有 1 個檔案被更改，包括 45 行新增 和 43 行删除
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  1. 45
    43
      threading.cpp

+ 45
- 43
threading.cpp 查看文件

@@ -59,9 +59,9 @@ bool ThreadManager::lockExistingThread(Thread* T) {
LockedThread = T; // set our locked thread and
return true; // return true;
}
const RuntimeCheck ThreadingCheck1("ThreadManager::unlockExistingThread():ThreadingCheck1(0 != LockedThread)");
const RuntimeCheck ThreadingCheck2("ThreadManager::unlockExistingThread():ThreadingCheck2(T == LockedThread)");
const RuntimeCheck ThreadingCheck1("ThreadManager::unlockExistingThread():ThreadingCheck1(0 != LockedThread)");
const RuntimeCheck ThreadingCheck2("ThreadManager::unlockExistingThread():ThreadingCheck2(T == LockedThread)");

void ThreadManager::unlockExistingThread(Thread* T) { // Unlocks ThreadManager if T locked.
ThreadingCheck1(0 != LockedThread); // We had better have a locked thread.
@@ -175,7 +175,7 @@ thread_primative Thread::getMyThread() { return MyThread; }
Thread::Thread() : // When constructing a WIN32 thread
MyThreadType(Thread::Type), // Use generic Thread Type.
MyThreadName("UnNamed Thread"), // Use a generic Thread Name.
MyThread(NULL), // Null the thread handle.
MyThread(NULL), // Null the thread handle.
RunningFlag(false), // Couldn't be running yet.
BadFlag(false) { // Couldn't be bad yet.
Threads.rememberThread(this); // Remember this thread.
@@ -185,7 +185,7 @@ Thread::Thread() :
Thread::Thread(const ThreadType& T, const string N) : // Construct with specific Type/Name
MyThreadType(T), // Use generic Thread Type.
MyThreadName(N), // Use a generic Thread Name.
MyThread(NULL), // Null the thread handle.
MyThread(NULL), // Null the thread handle.
RunningFlag(false), // Couldn't be running yet.
BadFlag(false) { // Couldn't be bad yet.
Threads.rememberThread(this); // Remember this thread.
@@ -202,8 +202,8 @@ Thread::~Thread() {
}

unsigned __stdcall runThreadTask(void* thread_object) { // The WIN32 version has this form.
((Thread*)thread_object)->launchTask(); // Run the task.
_endthreadex(0); // Signal the thread is finished.
((Thread*)thread_object)->launchTask(); // Run the task.
_endthreadex(0); // Signal the thread is finished.
return 0; // Satisfy the unsigned return.
}

@@ -245,6 +245,7 @@ Thread::~Thread() {

void* runThreadTask(void* thread_object) { // The POSIX version has this form.
((Thread*)thread_object)->launchTask();
return NULL;
}

void Thread::run() { // Run a POSIX thread...
@@ -272,16 +273,16 @@ void Thread::join() {
// additional research it was determined that the use of a Semaphore with an
// initial count of 1 would work better overall on multiple Winx platforms -
// especially SMP systems.
const RuntimeCheck ThreadingCheck3("Mutex::Mutex():ThreadingCheck3(NULL != MyMutex)");
const RuntimeCheck ThreadingCheck3("Mutex::Mutex():ThreadingCheck3(NULL != MyMutex)");

Mutex::Mutex() : // Creating a WIN32 Mutex means
IAmLocked(false) { // Setting IAmLocked to false and
MyMutex = CreateSemaphore(NULL, 1, 1, NULL); // create a semaphore object with
ThreadingCheck3(NULL != MyMutex); // a count of 1.
}
const ExitCheck ThreadingCheck4("Mutex::~Mutex():");
const ExitCheck ThreadingCheck4("Mutex::~Mutex():");

Mutex::~Mutex() { // Destroying a WIN32 Mutex means
ThreadingCheck4(false == IAmLocked); // Make sure we're not in use and
@@ -299,15 +300,15 @@ bool Mutex::tryLock() {
}
return DoIHaveIt; // Return true if we got it (see above).
}
const RuntimeCheck ThreadingCheck5("Mutex::lock():ThreadingCheck5(WAIT_OBJECT_0 == WaitForSingleObject(MyMutex, INFINITE))");
const RuntimeCheck ThreadingCheck5("Mutex::lock():ThreadingCheck5(WAIT_OBJECT_0 == WaitForSingleObject(MyMutex, INFINITE))");

void Mutex::lock() { // Locking the WIN32 Mutex means
ThreadingCheck5(WAIT_OBJECT_0 == WaitForSingleObject(MyMutex, INFINITE)); // Wait on the semaphore - only 1 will
IAmLocked = true; // get through or we have a big problem.
}
const LogicCheck ThreadingCheck6("Mutex::unlock():ThreadingCheck6(true == IAmLocked)");
const LogicCheck ThreadingCheck6("Mutex::unlock():ThreadingCheck6(true == IAmLocked)");

void Mutex::unlock() { // Unlocking the WIN32 Mutex means
ThreadingCheck6(true == IAmLocked); // making sure we're really locked then
@@ -320,31 +321,31 @@ bool Mutex::isLocked() { return IAmLocked; }
#else

// POSIX Mutex Implementation //////////////////////////////////////////////////
const RuntimeCheck ThreadingCheck7("Mutex::Mutex():ThreadingCheck7(0 == pthread_mutex_init(&MyMutex,NULL))");
const RuntimeCheck ThreadingCheck7("Mutex::Mutex():ThreadingCheck7(0 == pthread_mutex_init(&MyMutex,NULL))");

Mutex::Mutex() : // Constructing a POSIX mutex means
IAmLocked(false) { // setting the IAmLocked flag to false and
ThreadingCheck7(0 == pthread_mutex_init(&MyMutex,NULL)); // initializing the mutex_t object.
}
const ExitCheck ThreadingCheck8("Mutex::~Mutex():ThreadingCheck8(false == IAmLocked)");
const ExitCheck ThreadingCheck9("Mutex::~Mutex():ThreadingCheck9(0 == pthread_mutex_destroy(&MyMutex))");
const ExitCheck ThreadingCheck8("Mutex::~Mutex():ThreadingCheck8(false == IAmLocked)");
const ExitCheck ThreadingCheck9("Mutex::~Mutex():ThreadingCheck9(0 == pthread_mutex_destroy(&MyMutex))");

Mutex::~Mutex() { // Before we destroy our mutex we check
ThreadingCheck8(false == IAmLocked); // to see that it is not locked and
ThreadingCheck9(0 == pthread_mutex_destroy(&MyMutex)); // destroy the primative.
}
const RuntimeCheck ThreadingCheck10("Mutex::lock():ThreadingCheck10(0 == pthread_mutex_lock(&MyMutex));");
const RuntimeCheck ThreadingCheck10("Mutex::lock():ThreadingCheck10(0 == pthread_mutex_lock(&MyMutex));");

void Mutex::lock() { // Locking a POSIX mutex means
ThreadingCheck10(0 == pthread_mutex_lock(&MyMutex)); // asserting our lock was successful and
IAmLocked = true; // setting the IAmLocked flag.
}
const LogicCheck ThreadingCheck11("Mutex::unlock():ThreadingCheck11(true == IAmLocked)");
const RuntimeCheck ThreadingCheck12("Mutex::unlock():ThreadingCheck12(0 == pthread_mutex_unlock(&MyMutex))");
const LogicCheck ThreadingCheck11("Mutex::unlock():ThreadingCheck11(true == IAmLocked)");
const RuntimeCheck ThreadingCheck12("Mutex::unlock():ThreadingCheck12(0 == pthread_mutex_unlock(&MyMutex))");

void Mutex::unlock() { // Unlocking a POSIX mutex means
ThreadingCheck11(true == IAmLocked); // asserting that we are locked,
@@ -356,8 +357,9 @@ bool Mutex::tryLock() {
bool DoIHaveIt = false; // starting off pessimistically.
if(false == IAmLocked) { // If we are not locked yet then we
if(0 == pthread_mutex_trylock(&MyMutex)) { // try to lock the mutex. If we succeed
DoIHaveIt = IAmLocked = true; // we set our IAmLocked flag and our
} // DoIHaveIt flag to true;
IAmLocked = true; // we set our IAmLocked flag and our
DoIHaveIt = true; // DoIHaveIt flag to true;
}
}
return DoIHaveIt; // In any case we return the result.
}
@@ -390,8 +392,8 @@ ScopeMutex::~ScopeMutex() {
#ifdef WIN32

// Win32 Implementation ////////////////////////////////////////////////////////
const RuntimeCheck ThreadingCheck13("ProductionGateway::ProductionGateway():ThreadingCheck13(NULL != MySemaphore)");
const RuntimeCheck ThreadingCheck13("ProductionGateway::ProductionGateway():ThreadingCheck13(NULL != MySemaphore)");

ProductionGateway::ProductionGateway() { // Construct in Windows like this:
const int HUGENUMBER = 0x7fffffL; // Work without any real limits.
@@ -414,9 +416,9 @@ void ProductionGateway::consume() {
#else

// POSIX Implementation ////////////////////////////////////////////////////////
const RuntimeCheck ThreadingCheck14("ProductionGateway::ProductionGateway():ThreadingCheck14(0 == pthread_mutex_init(&MyMutex, NULL));");
const RuntimeCheck ThreadingCheck15("ProductionGateway::ProductionGateway():ThreadingCheck15(0 == pthread_cond_init(&MyConditionVariable, NULL))");
const RuntimeCheck ThreadingCheck14("ProductionGateway::ProductionGateway():ThreadingCheck14(0 == pthread_mutex_init(&MyMutex, NULL));");
const RuntimeCheck ThreadingCheck15("ProductionGateway::ProductionGateway():ThreadingCheck15(0 == pthread_cond_init(&MyConditionVariable, NULL))");

ProductionGateway::ProductionGateway() : // Construct in POSIX like this:
Product(0), // All of our counts start at zero.
@@ -425,18 +427,18 @@ ProductionGateway::ProductionGateway() :
ThreadingCheck14(0 == pthread_mutex_init(&MyMutex, NULL)); // Initialize our mutex.
ThreadingCheck15(0 == pthread_cond_init(&MyConditionVariable, NULL)); // Initialize our condition variable.
}
const ExitCheck ThreadingCheck16("ProductionGateway::~ProductionGateway():ThreadingCheck16(0 == pthread_mutex_destroy(&MyMutex))");
const ExitCheck ThreadingCheck17("ProductionGateway::~ProductionGateway():ThreadingCheck17(0 == pthread_cond_destroy(&MyConditionVariable))");
const ExitCheck ThreadingCheck16("ProductionGateway::~ProductionGateway():ThreadingCheck16(0 == pthread_mutex_destroy(&MyMutex))");
const ExitCheck ThreadingCheck17("ProductionGateway::~ProductionGateway():ThreadingCheck17(0 == pthread_cond_destroy(&MyConditionVariable))");

ProductionGateway::~ProductionGateway() { // When we're done we must destroy
ThreadingCheck16(0 == pthread_mutex_destroy(&MyMutex)); // our local mutex and
ThreadingCheck17(0 == pthread_cond_destroy(&MyConditionVariable)); // our condition variable.
}
const RuntimeCheck ThreadingCheck18("ProductionGateway::produce():ThreadingCheck18(0 == pthread_mutex_lock(&MyMutex))");
const RuntimeCheck ThreadingCheck19("ProductionGateway::produce():ThreadingCheck19(0 == pthread_cond_signal(&MyConditionVariable))");
const RuntimeCheck ThreadingCheck20("ProductionGateway::produce():ThreadingCheck20(0 == pthread_mutex_unlock(&MyMutex))");
const RuntimeCheck ThreadingCheck18("ProductionGateway::produce():ThreadingCheck18(0 == pthread_mutex_lock(&MyMutex))");
const RuntimeCheck ThreadingCheck19("ProductionGateway::produce():ThreadingCheck19(0 == pthread_cond_signal(&MyConditionVariable))");
const RuntimeCheck ThreadingCheck20("ProductionGateway::produce():ThreadingCheck20(0 == pthread_mutex_unlock(&MyMutex))");

void ProductionGateway::produce() { // To produce in POSIX
ThreadingCheck18(0 == pthread_mutex_lock(&MyMutex)); // Lock our mutex.
@@ -447,10 +449,10 @@ void ProductionGateway::produce() {
} // down as they awaken.
ThreadingCheck20(0 == pthread_mutex_unlock(&MyMutex)); // At the end unlock our mutex so
} // waiting threads can fly free :-)
const RuntimeCheck ThreadingCheck21("ProductionGateway::consume():ThreadingCheck21(0 == pthread_mutex_lock(&MyMutex))");
const RuntimeCheck ThreadingCheck22("ProductionGateway::consume():ThreadingCheck22(0 == pthread_cond_wait(&MyConditionVariable, &MyMutex))");
const RuntimeCheck ThreadingCheck23("ProductionGateway::consume():ThreadingCheck23(0 == pthread_mutex_unlock(&MyMutex))");
const RuntimeCheck ThreadingCheck21("ProductionGateway::consume():ThreadingCheck21(0 == pthread_mutex_lock(&MyMutex))");
const RuntimeCheck ThreadingCheck22("ProductionGateway::consume():ThreadingCheck22(0 == pthread_cond_wait(&MyConditionVariable, &MyMutex))");
const RuntimeCheck ThreadingCheck23("ProductionGateway::consume():ThreadingCheck23(0 == pthread_mutex_unlock(&MyMutex))");

void ProductionGateway::consume() { // To consume in POSIX
ThreadingCheck21(0 == pthread_mutex_lock(&MyMutex)); // Lock our mutex.

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