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71 lines
1.9 KiB
71 lines
1.9 KiB
/*
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* Copyright 2002-2019 Intel Corporation.
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*
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* This software is provided to you as Sample Source Code as defined in the accompanying
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* End User License Agreement for the Intel(R) Software Development Products ("Agreement")
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* section 1.L.
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*
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* This software and the related documents are provided as is, with no express or implied
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* warranties, other than those that are expressly stated in the License.
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*/
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#include <Windows.h>
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#include <stdio.h>
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// Combination of thread creation and load library
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extern "C" __declspec(dllexport) int ThreadRoutine()
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{
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// use the loader lock
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for(int i = 0; i < 100000; i++)
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{
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GetModuleHandle("kernel32.dll");
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}
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return 0;
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}
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bool ThreadCreateAndLoadLibrary()
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{
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//thread creation
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const unsigned long num_threads = 1;
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static HANDLE aThreads[num_threads] = { 0 };
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unsigned long slot = 0;
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unsigned long thread_id = 0;
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unsigned long cnt_th = 0;
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unsigned long thread_ret = 0;
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for (cnt_th = 0; cnt_th < num_threads; cnt_th++)
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{
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aThreads[cnt_th] = CreateThread(NULL,0,(LPTHREAD_START_ROUTINE)ThreadRoutine,0,0,(LPDWORD)&thread_id);
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}
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fprintf(stderr, "created %d threads \n", num_threads);
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//load library
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HMODULE hker32;
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int iterations = 10;
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for(int i = 0; i < iterations; i++)
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{
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hker32 = LoadLibrary("kernel32.dll");
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}
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fprintf(stderr, "loaded kernel32 %d times \n", iterations);
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//thread termination
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while (cnt_th > 0)
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{
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slot = WaitForMultipleObjects(cnt_th, aThreads, FALSE, INFINITE);
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GetExitCodeThread(aThreads[slot],&thread_ret);
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CloseHandle(aThreads[slot]);
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aThreads[slot] = aThreads[cnt_th-1];
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cnt_th--;
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}
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fprintf(stderr, "all %d threads terminated\n", num_threads);
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fflush(stderr);
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return true;
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}
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int main()
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{
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ThreadCreateAndLoadLibrary();
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return 0;
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} |