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// =================================================================================================================================
// This sample is more of a show-(and test) case for HeapInspector's. It demonstrates:
// 1) That HeapInspector is multithread safe.
// 2) HeapInspector's ability to deal with allocations prior to Initialise (although those allocations will not be tracked).
// 3) HeapInspector's ability to deal with API calls during static initialisation phase.
//
// In this sample, multiple threads are started that perform allocations for a set period of time. The
// application will wait for those threads to finish. After the time is passed and the application calls Shutdown,
// the client will disconnect.
//
// To switch between launching the threads during the static initalisation phase and launching the treads
// in main, flip the INIT_IN_STATIC_PHASE define.
//
// =================================================================================================================================
#include "IThread.h"
#include <stdlib.h>
void Wait(int a_MilliSeconds);
#define INIT_IN_STATIC_PHASE 0
const int g_NumThreads = 4;
class MultiThreadedAllocator
{
public:
static void WorkerThread()
{
for (int i = 0; i != 1000; ++i)
{
void* mem1 = malloc(10);
Wait(10);
free(mem1);
Wait(10);
}
}
MultiThreadedAllocator()
{
for (int i = 0; i != g_NumThreads; ++i)
{
m_Threads[i] = CreateThread();
m_Threads[i]->Fork(WorkerThread);
}
}
~MultiThreadedAllocator()
{
WaitForThreads();
for (int i = 0; i != g_NumThreads; ++i)
{
DestroyThread(m_Threads[i]);
}
}
private:
void WaitForThreads()
{
for (int i = 0; i != g_NumThreads; ++i)
{
m_Threads[i]->Join();
}
}
private:
IThread* m_Threads[g_NumThreads];
};
#if INIT_IN_STATIC_PHASE
static MultiThreadedAllocator* g_Allocator = new MultiThreadedAllocator();
#endif
void RunHeapInspectorServer()
{
#if !INIT_IN_STATIC_PHASE
MultiThreadedAllocator* g_Allocator = new MultiThreadedAllocator();
#endif
delete g_Allocator;
}
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