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|
/*****************************************************************
|
| Queue Test Program 1
|
| (c) 2008 Gilles Boccon-Gibod
| Author: Gilles Boccon-Gibod (bok@bok.net)
|
****************************************************************/
/*----------------------------------------------------------------------
| includes
+---------------------------------------------------------------------*/
#include "Neptune.h"
#if defined(WIN32) && defined(_DEBUG)
#include <crtdbg.h>
#endif
#define CHECK(x) { \
if (!(x)) { \
printf("TEST FAILED line %d\n", __LINE__); \
NPT_ASSERT(0); \
} \
}
/*----------------------------------------------------------------------
| Item
+---------------------------------------------------------------------*/
class Item
{
public:
typedef enum {
MSG_INCREMENT_COUNTER,
MSG_CHANGE_TIMEOUT,
MSG_TERMINATE
} Message;
Item(Message msg) : m_Message(msg) {}
Message m_Message;
};
/*----------------------------------------------------------------------
| WriterThread
+---------------------------------------------------------------------*/
class WriterThread : public NPT_Thread
{
public:
WriterThread(NPT_Queue<Item>& queue, const char* name) :
m_Queue(queue), m_Name(name), m_Counter(0) {}
void Run() {
NPT_Debug("WRITER %s starting ++++++++++++++++++++++++\n", (const char*)m_Name);
for (int i=0; i<1000; i++) {
if (i%5 == 0) {
NPT_Debug("WRITER %s post: change timeout\n", (const char*)m_Name);
m_Queue.Push(new Item(Item::MSG_CHANGE_TIMEOUT));
}
m_Queue.Push(new Item(Item::MSG_INCREMENT_COUNTER));
if (i%3 == 0) {
NPT_Debug("WRITER %s sleeping\n", (const char*)m_Name);
NPT_System::Sleep(NPT_TimeInterval(0.01f));
}
}
NPT_Debug("WRITER %s terminating ----------------------\n", (const char*)m_Name);
}
NPT_Queue<Item>& m_Queue;
NPT_String m_Name;
unsigned int m_Counter;
};
/*----------------------------------------------------------------------
| ReaderThread
+---------------------------------------------------------------------*/
class ReaderThread : public NPT_Thread
{
public:
ReaderThread(NPT_Queue<Item>& queue, const char* name, NPT_TimeInterval sleep_time) :
m_Queue(queue), m_Name(name), m_Counter(0), m_NbTimeouts(0), m_SleepTime(sleep_time) {}
void Run() {
NPT_Debug("READER %s starting =====================\n", (const char*)m_Name);
NPT_Timeout timeout = NPT_TIMEOUT_INFINITE;
for (;;) {
if (m_SleepTime.ToNanos() != 0) {
NPT_Debug("READER %s sleeping...\n", (const char*)m_Name);
NPT_System::Sleep(m_SleepTime);
NPT_Debug("READER %s woke up!\n", (const char*)m_Name);
}
Item* item = NULL;
NPT_Result result = m_Queue.Pop(item, timeout);
if (NPT_SUCCEEDED(result)) {
CHECK(item != NULL);
Item::Message msg = item->m_Message;
delete item;
switch (msg) {
case Item::MSG_INCREMENT_COUNTER:
++m_Counter;
NPT_Debug("READER %s new counter=%d\n", (const char*)m_Name, m_Counter);
break;
case Item::MSG_CHANGE_TIMEOUT:
if (timeout == 0) {
timeout = 15;
} else if (timeout == 15) {
timeout = NPT_TIMEOUT_INFINITE;
} else {
timeout = 0;
}
NPT_Debug("READER %s new timeout=%d\n", (const char*)m_Name, timeout);
break;
case Item::MSG_TERMINATE:
NPT_Debug("READER %s terminating #######################\n", (const char*)m_Name);
return;
}
} else {
NPT_Debug("READER %s pop returned %d\n", (const char*)m_Name, result);
if (timeout == 0) {
CHECK(result == NPT_ERROR_LIST_EMPTY);
NPT_System::Sleep(0.01f);
} else if (timeout != NPT_TIMEOUT_INFINITE) {
CHECK(result == NPT_ERROR_TIMEOUT);
++m_NbTimeouts;
} else {
NPT_ASSERT(0);
}
}
}
}
NPT_Queue<Item>& m_Queue;
NPT_String m_Name;
unsigned int m_Counter;
unsigned int m_NbTimeouts;
NPT_TimeInterval m_SleepTime;
};
/*----------------------------------------------------------------------
| Test1
+---------------------------------------------------------------------*/
static void
Test1()
{
// create a queue
NPT_Queue<Item> queue;
// create 2 writers
NPT_Debug("creating writer 1\n");
WriterThread writer1(queue, "1"); writer1.Start();
NPT_System::Sleep(NPT_TimeInterval(0.3f));
NPT_Debug("creating writer 2\n");
WriterThread writer2(queue, "2"); writer2.Start();
NPT_System::Sleep(NPT_TimeInterval(0.3f));
// create 4 readers
NPT_Debug("creating reader 1\n");
ReaderThread reader1(queue, "1", NPT_TimeInterval(0.0f)); reader1.Start();
NPT_System::Sleep(NPT_TimeInterval(0.3f));
NPT_Debug("creating reader 2\n");
ReaderThread reader2(queue, "2", NPT_TimeInterval(0.0f)); reader2.Start();
NPT_System::Sleep(NPT_TimeInterval(0.3f));
NPT_Debug("creating reader 3\n");
ReaderThread reader3(queue, "3", NPT_TimeInterval(0.0f)); reader3.Start();
NPT_System::Sleep(NPT_TimeInterval(0.3f));
NPT_Debug("creating reader 4\n");
ReaderThread reader4(queue, "4", NPT_TimeInterval(0.0f)); reader4.Start();
NPT_System::Sleep(NPT_TimeInterval(0.3f));
// wait for the writers
NPT_Result result;
NPT_Debug("Waiting for Writer 1 *********************\n");
result = writer1.Wait();
NPT_Debug("Writer 1 done *********************\n");
CHECK(result == NPT_SUCCESS);
NPT_Debug("Waiting for Writer 2 *********************\n");
result = writer2.Wait();
NPT_Debug("Writer 1 done *********************\n");
// post 4 termination messages
queue.Push(new Item(Item::MSG_TERMINATE));
queue.Push(new Item(Item::MSG_TERMINATE));
queue.Push(new Item(Item::MSG_TERMINATE));
queue.Push(new Item(Item::MSG_TERMINATE));
// wait for the readers
CHECK(result == NPT_SUCCESS);
NPT_Debug("Waiting for Reader 1 *********************\n");
result = reader1.Wait();
NPT_Debug("Reader 1 done *********************\n");
CHECK(result == NPT_SUCCESS);
NPT_Debug("Waiting for Reader 2 *********************\n");
result = reader2.Wait();
NPT_Debug("Reader 2 done *********************\n");
CHECK(result == NPT_SUCCESS);
NPT_Debug("Waiting for Reader 3 *********************\n");
result = reader3.Wait();
NPT_Debug("Reader 3 done *********************\n");
CHECK(result == NPT_SUCCESS);
NPT_Debug("Waiting for Reader 4 *********************\n");
result = reader4.Wait();
NPT_Debug("Reader 4 done *********************\n");
CHECK(result == NPT_SUCCESS);
// check counters
unsigned int total = reader1.m_Counter+reader2.m_Counter+reader3.m_Counter+reader4.m_Counter;
CHECK(total == 2*1000);
}
/*----------------------------------------------------------------------
| Test2
+---------------------------------------------------------------------*/
static void
Test2()
{
// create a queue
NPT_Queue<Item> queue;
// create 2 readers
NPT_Debug("creating reader 1\n");
ReaderThread reader1(queue, "1", NPT_TimeInterval(0.05f)); reader1.Start();
NPT_Debug("creating reader 2\n");
ReaderThread reader2(queue, "2", NPT_TimeInterval(0.065f)); reader2.Start();
for (int i=0; i<30; i++) {
queue.Push(new Item(Item::MSG_INCREMENT_COUNTER));
}
queue.Push(new Item(Item::MSG_TERMINATE));
for (int i=0; i<30; i++) {
queue.Push(new Item(Item::MSG_INCREMENT_COUNTER));
}
queue.Push(new Item(Item::MSG_TERMINATE));
NPT_Result result;
NPT_Debug("Waiting for Reader 1 *********************\n");
result = reader1.Wait();
NPT_Debug("Reader 1 done *********************\n");
CHECK(result == NPT_SUCCESS);
NPT_Debug("Waiting for Reader 1 *********************\n");
result = reader2.Wait();
NPT_Debug("Reader 2 done *********************\n");
CHECK(result == NPT_SUCCESS);
// check counters
unsigned int total = reader1.m_Counter+reader2.m_Counter;
CHECK(total == 60);
}
#if defined(WIN32) && defined(_DEBUG)
static int AllocHook( int allocType, void *userData, size_t size, int blockType,
long requestNumber, const unsigned char *filename, int lineNumber)
{
(void)allocType;
(void)userData;
(void)size;
(void)blockType;
(void)requestNumber;
(void)lineNumber;
(void)filename;
return 1;
}
#endif
/*----------------------------------------------------------------------
| main
+---------------------------------------------------------------------*/
int
main(int argc, char** argv)
{
NPT_COMPILER_UNUSED(argc);
NPT_COMPILER_UNUSED(argv);
#if defined(WIN32) && defined(_DEBUG)
_CrtSetDbgFlag(_CRTDBG_ALLOC_MEM_DF |
_CRTDBG_CHECK_ALWAYS_DF |
_CRTDBG_LEAK_CHECK_DF);
_CrtSetAllocHook(AllocHook);
#endif
Test1();
Test2();
NPT_Debug("- program done -\n");
return 0;
}
|
