Added inter thread communication lib

git-svn-id: svn://db.shs.com.ru/pip@858 12ceb7fc-bf1f-11e4-8940-5bc7170c53b5

src_concurrent/piconditionlock.cpp

@@ -0,0 +1,81 @@
+//
+// Created by fomenko on 25.09.2019.
+//
+
+#include "piconditionlock.h"
+#ifdef WINDOWS
+#include "synchapi.h"
+#else
+#include "pthread.h"
+#endif
+
+PRIVATE_DEFINITION_START(PIConditionLock)
+#ifdef WINDOWS
+    CRITICAL_SECTION
+#else
+    pthread_mutex_t
+#endif
+    nativeHandle;
+PRIVATE_DEFINITION_END(PIConditionLock)
+
+#ifdef WINDOWS
+PIConditionLock::PIConditionLock() {
+    InitializeCriticalSection(&PRIVATE->nativeHandle);
+}
+
+PIConditionLock::~PIConditionLock() {
+    DeleteCriticalSection(&PRIVATE->nativeHandle);
+}
+
+void PIConditionLock::lock() {
+    EnterCriticalSection(&PRIVATE->nativeHandle);
+}
+
+void PIConditionLock::unlock() {
+    LeaveCriticalSection(&PRIVATE->nativeHandle);
+}
+
+void *PIConditionLock::handle() {
+    return &PRIVATE->nativeHandle;
+}
+
+bool PIConditionLock::tryLock() {
+    return TryEnterCriticalSection(&PRIVATE->nativeHandle) != 0;
+}
+
+#else
+
+PIConditionLock::PIConditionLock() {
+    pthread_mutexattr_t attr;
+    memset(&attr, 0, sizeof(attr));
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE);
+    memset(&(PRIVATE->nativeHandle), 0, sizeof(PRIVATE->nativeHandle));
+    pthread_mutex_init(&(PRIVATE->nativeHandle), &attr);
+    pthread_mutexattr_destroy(&attr);
+}
+
+PIConditionLock::~PIConditionLock() {
+    pthread_mutex_destroy(&(PRIVATE->nativeHandle));
+}
+
+void PIConditionLock::lock() {
+    pthread_mutex_lock(&(PRIVATE->nativeHandle));
+}
+
+void PIConditionLock::unlock() {
+    pthread_mutex_unlock(&(PRIVATE->nativeHandle));
+}
+
+void *PIConditionLock::handle() {
+    return &PRIVATE->nativeHandle;
+}
+
+bool PIConditionLock::tryLock() {
+    return (pthread_mutex_trylock(&(PRIVATE->nativeHandle)) == 0);;
+}
+#endif
+
+
+
+