Add Sleep and Lock utilities

src/Thread.cpp

+#ifndef WIN32
+#include <unistd.h>
+#endif
+
 #include "Thread.h"
 
 using namespace AdblockPlus;
 
 namespace
 {
   void CallRun(Thread* thread)
   {
     thread->Run();
   }
 }
 
+void AdblockPlus::Sleep(const int millis)
+{
+#ifdef WIN32
+  ::Sleep(millis);
+#else
+  usleep(millis * 1000);
+#endif
+}
+
 Mutex::Mutex()
 {
 #ifdef WIN32
   InitializeCriticalSection(&nativeMutex);
 #else
   pthread_mutex_init(&nativeMutex, 0);
 #endif
 }
 
 Mutex::~Mutex()
@@ skipping 16 matching lines @@
 
 void Mutex::Unlock()
 {
 #ifdef WIN32
   LeaveCriticalSection(&nativeMutex);
 #else
   pthread_mutex_unlock(&nativeMutex);
 #endif
 }
 
+Lock::Lock(Mutex& mutex) : mutex(mutex)
+{
+  mutex.Lock();
+}
+
+Lock::~Lock()
+{
+  mutex.Unlock();
+}
+
 ConditionVariable::ConditionVariable()
 {
 #ifdef WIN32
   InitializeConditionVariable(&nativeCondition);
 #else
   pthread_cond_init(&nativeCondition, 0);
 #endif
 }
 
 ConditionVariable::~ConditionVariable()
@@ skipping 35 matching lines @@
 }
 
 void Thread::Join()
 {
 #ifdef WIN32
   WaitForSingleObject(nativeThread, INFINITE);
 #else
   pthread_join(nativeThread, 0);
 #endif
 }