本文整理汇总了C++中typenamem::scoped_lock类的典型用法代码示例。如果您正苦于以下问题：C++ scoped_lock类的具体用法？C++ scoped_lock怎么用？C++ scoped_lock使用的例子？那么恭喜您, 这里精选的类代码示例或许可以为您提供帮助。
在下文中一共展示了scoped_lock类的4个代码示例，这些例子默认根据受欢迎程度排序。您可以为喜欢或者感觉有用的代码点赞，您的评价将有助于系统推荐出更棒的C++代码示例。
示例1: TestTryAcquire_OneThread
void TestTryAcquire_OneThread( const char * mutex_name ) {
M tested_mutex;
typename M::scoped_lock lock1;
if( lock1.try_acquire(tested_mutex) )
lock1.release();
else
REPORT("ERROR for %s: try_acquire failed though it should not\n", mutex_name);
{
if( M::is_recursive_mutex ) {
typename M::scoped_lock lock2(tested_mutex);
if( lock1.try_acquire(tested_mutex) )
lock1.release();
else
REPORT("ERROR for %s: try_acquire on recursive lock failed though it should not\n", mutex_name);
//windows.. -- both are recursive
} else {
typename M::scoped_lock lock2(tested_mutex);
if( lock1.try_acquire(tested_mutex) )
REPORT("ERROR for %s: try_acquire succeeded though it should not\n", mutex_name);
}
}
if( lock1.try_acquire(tested_mutex) )
lock1.release();
else
REPORT("ERROR for %s: try_acquire failed though it should not\n", mutex_name);
}示例2: TestTryAcquireReader_OneThread
void TestTryAcquireReader_OneThread( const char * mutex_name ) {
M tested_mutex;
typename M::scoped_lock lock1;
if( M::is_rw_mutex ) {
if( lock1.try_acquire(tested_mutex, false) )
lock1.release();
else
REPORT("ERROR for %s: try_acquire failed though it should not\n", mutex_name);
{
typename M::scoped_lock lock2(tested_mutex, false);
if( lock1.try_acquire(tested_mutex) )
REPORT("ERROR for %s: try_acquire succeeded though it should not\n", mutex_name);
lock2.release();
lock2.acquire(tested_mutex, true);
if( lock1.try_acquire(tested_mutex, false) )
REPORT("ERROR for %s: try_acquire succeeded though it should not\n", mutex_name);
}
if( lock1.try_acquire(tested_mutex, false) )
lock1.release();
else
REPORT("ERROR for %s: try_acquire failed though it should not\n", mutex_name);
}
}示例3: operator
void operator()( tbb::blocked_range<size_t>& range ) const {
typename M::scoped_lock lock2;
for( size_t i=range.begin(); i!=range.end(); ++i ) {
if( i&1 ) {
typename M::scoped_lock lock1(my_mutex, true) ;
if( lock1.downgrade_to_reader()==false )
REPORT("ERROR for %s: downgrade should always succeed\n", name);
} else {
lock2.acquire( my_mutex, false );
if( lock2.upgrade_to_writer()==false )
REPORT("ERROR for %s: upgrade should always succeed\n", name);
lock2.release();
}
}
}示例4: TestTryAcquire_OneThread
void TestTryAcquire_OneThread( const char * mutex_name ) {
M tested_mutex;
typename M::scoped_lock lock1;
if( lock1.try_acquire(tested_mutex) )
lock1.release();
else
STD::printf("ERROR for %s: try_acquire failed though it should not\n", mutex_name);
{
typename M::scoped_lock lock2(tested_mutex);
if( lock1.try_acquire(tested_mutex) )
STD::printf("ERROR for %s: try_acquire succeeded though it should not\n", mutex_name);
}
if( lock1.try_acquire(tested_mutex) )
lock1.release();
else
STD::printf("ERROR for %s: try_acquire failed though it should not\n", mutex_name);
}