--- /dev/null
+/*
+ This file is a part of libcds - Concurrent Data Structures library
+
+ (C) Copyright Maxim Khizhinsky (libcds.dev@gmail.com) 2006-2017
+
+ Source code repo: http://github.com/khizmax/libcds/
+ Download: http://sourceforge.net/projects/libcds/files/
+
+ Redistribution and use in source and binary forms, with or without
+ modification, are permitted provided that the following conditions are met:
+
+ * Redistributions of source code must retain the above copyright notice, this
+ list of conditions and the following disclaimer.
+
+ * Redistributions in binary form must reproduce the above copyright notice,
+ this list of conditions and the following disclaimer in the documentation
+ and/or other materials provided with the distribution.
+
+ THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+ AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+ IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+ DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+ FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+ DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+ SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+ CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+ OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*/
+
+#include "queue_type.h"
+
+#include <vector>
+#include <algorithm>
+#include <type_traits>
+
+// Single producer/single consumer buffer push/pop test
+namespace {
+
+ static size_t s_nBufferSize = 1024*1024;
+ static size_t s_nPushCount = 1000000;
+
+ static std::atomic<size_t> s_nProducerDone( 0 );
+
+ class spsc_buffer: public cds_test::stress_fixture
+ {
+ protected:
+ typedef size_t value_type;
+
+ enum {
+ producer_thread,
+ consumer_thread
+ };
+
+ template <class Queue>
+ class Producer: public cds_test::thread
+ {
+ typedef cds_test::thread base_class;
+
+ public:
+ Producer( cds_test::thread_pool& pool, Queue& queue )
+ : base_class( pool, producer_thread )
+ , m_Queue( queue )
+ {}
+
+ Producer( Producer& src )
+ : base_class( src )
+ , m_Queue( src.m_Queue )
+ {}
+
+ virtual thread * clone()
+ {
+ return new Producer( *this );
+ }
+
+ virtual void test()
+ {
+ size_t const nPushCount = s_nPushCount;
+
+ for ( size_t i = 0; i < nPushCount; ++i ) {
+ size_t len = rand( 1024 ) + 64;
+ void* buf = m_Queue.back( len );
+ if ( buf ) {
+ memset( buf, len % 256, len );
+ m_Queue.push_back();
+ m_nPushed += len;
+ }
+ else
+ ++m_nPushFailed;
+ }
+
+ s_nProducerDone.fetch_add( 1 );
+ }
+
+ public:
+ Queue& m_Queue;
+ size_t m_nPushFailed = 0;
+ size_t m_nPushed = 0;
+ };
+
+ template <class Queue>
+ class Consumer: public cds_test::thread
+ {
+ typedef cds_test::thread base_class;
+
+ public:
+ Queue& m_Queue;
+ size_t m_nPopEmpty = 0;
+ size_t m_nPopped = 0;
+ size_t m_nBadValue = 0;
+ size_t m_nPopFrontFailed = 0;
+
+ public:
+ Consumer( cds_test::thread_pool& pool, Queue& queue )
+ : base_class( pool, consumer_thread )
+ , m_Queue( queue )
+ {}
+ Consumer( Consumer& src )
+ : base_class( src )
+ , m_Queue( src.m_Queue )
+ {}
+
+ virtual thread * clone()
+ {
+ return new Consumer( *this );
+ }
+
+ virtual void test()
+ {
+ while ( true ) {
+ auto buf = m_Queue.front();
+ if ( buf.first ) {
+ m_nPopped += buf.second;
+
+ uint8_t val = static_cast<uint8_t>( buf.second % 256 );
+ uint8_t const* p = reinterpret_cast<uint8_t*>( buf.first );
+ for ( uint8_t const* pEnd = p + buf.second; p < pEnd; ++p ) {
+ if ( *p != val ) {
+ ++m_nBadValue;
+ break;
+ }
+ }
+
+ if ( !m_Queue.pop_front() )
+ ++m_nPopFrontFailed;
+ }
+ else {
+ ++m_nPopEmpty;
+ if ( s_nProducerDone.load() != 0 ) {
+ if ( m_Queue.empty() )
+ break;
+ }
+ }
+ }
+ }
+ };
+
+ protected:
+ size_t m_nThreadPushCount;
+
+ protected:
+ template <class Queue>
+ void test_queue( Queue& q )
+ {
+ cds_test::thread_pool& pool = get_pool();
+ auto producer = new Producer<Queue>( pool, q );
+ auto consumer = new Consumer<Queue>( pool, q );
+
+ pool.add( producer, 1 );
+ pool.add( consumer, 1 );
+
+ s_nProducerDone.store( 0 );
+
+ propout() << std::make_pair( "buffer_size", s_nBufferSize )
+ << std::make_pair( "push_count", s_nPushCount );
+
+ std::chrono::milliseconds duration = pool.run();
+
+ propout() << std::make_pair( "duration", duration );
+
+ // analyze result
+ EXPECT_EQ( consumer->m_nBadValue, 0u );
+ EXPECT_EQ( consumer->m_nPopFrontFailed, 0u );
+ EXPECT_EQ( consumer->m_nPopped, producer->m_nPushed );
+
+ propout()
+ << std::make_pair( "producer_push_length", producer->m_nPushed )
+ << std::make_pair( "producer_push_failed", producer->m_nPushFailed )
+ << std::make_pair( "consumer_pop_length", consumer->m_nPopped )
+ << std::make_pair( "consumer_pop_empty", consumer->m_nPopEmpty )
+ << std::make_pair( "consumer_bad_value", consumer->m_nBadValue )
+ << std::make_pair( "consumer_pop_front_failed", consumer->m_nPopFrontFailed );
+ }
+
+ template <class Queue>
+ void test( Queue& q )
+ {
+ test_queue( q );
+ propout() << q.statistics();
+ }
+
+ public:
+ static void SetUpTestCase()
+ {
+ cds_test::config const& cfg = get_config( "spsc_buffer" );
+
+ s_nBufferSize = cfg.get_size_t( "BufferSize", s_nBufferSize );
+ s_nPushCount = cfg.get_size_t( "PushCount", s_nPushCount );
+
+ if ( s_nBufferSize < 1024 * 64 )
+ s_nBufferSize = 1024 * 64;
+ if ( s_nPushCount == 0u )
+ s_nPushCount = 1024;
+ }
+ };
+
+#undef CDSSTRESS_Queue_F
+#define CDSSTRESS_Queue_F( test_fixture, type_name ) \
+ TEST_F( test_fixture, type_name ) \
+ { \
+ typedef queue::Types< value_type >::type_name queue_type; \
+ queue_type queue( s_nBufferSize ); \
+ test( queue ); \
+ }
+
+ CDSSTRESS_WeakRingBuffer_void( spsc_buffer )
+
+#undef CDSSTRESS_Queue_F
+
+} // namespace
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