mirror of
https://github.com/mstorsjo/llvm-mingw
synced 2026-06-21 14:01:00 +00:00
Martin Storsjö
117 lines
3.7 KiB
C++
117 lines
3.7 KiB
C++
/*
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* Copyright (c) 2018 Martin Storsjo
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*
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* This file is part of llvm-mingw.
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*
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* Permission to use, copy, modify, and/or distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#define WIN32_LEAN_AND_MEAN
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#include <windows.h>
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#include <process.h>
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#include <stdio.h>
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#include <stdint.h>
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#include <stdlib.h>
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HANDLE event1, event2, event3;
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void (*func)(void);
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class Hello {
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public:
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Hello(const char* s) {
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str = s;
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thread = GetCurrentThreadId();
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fprintf(stderr, "%s ctor on thread %d\n", str, thread);
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}
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~Hello() {
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fprintf(stderr, "%s dtor from thread %d, now on %d\n", str, thread, (int) GetCurrentThreadId());
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}
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const char* str;
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int thread;
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};
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unsigned __stdcall threadfunc(void *arg) {
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HANDLE event = (HANDLE) arg;
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int threadId = GetCurrentThreadId();
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fprintf(stderr, "threadfunc thread %d\n", threadId);
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static thread_local Hello main_h("main local tls");
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SetEvent(event3);
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WaitForSingleObject(event, INFINITE);
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fprintf(stderr, "thread %d calling func\n", threadId);
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if (func)
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func();
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SetEvent(event3);
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WaitForSingleObject(event, INFINITE);
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fprintf(stderr, "thread %d finishing\n", threadId);
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return 0;
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}
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static Hello main_h("main global");
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static void atexit_func(void) {
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fprintf(stderr, "main atexit_func\n");
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}
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int main(int argc, char* argv[]) {
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atexit(atexit_func);
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fprintf(stderr, "main\n");
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event1 = CreateEvent(NULL, FALSE, FALSE, NULL);
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event2 = CreateEvent(NULL, FALSE, FALSE, NULL);
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event3 = CreateEvent(NULL, FALSE, FALSE, NULL);
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fprintf(stderr, "main, starting thread1\n");
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HANDLE thread1 = (HANDLE)_beginthreadex(NULL, 0, threadfunc, event1, 0, NULL);
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WaitForSingleObject(event3, INFINITE);
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fprintf(stderr, "main, thread1 started\n");
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fprintf(stderr, "LoadLibrary tlstest-lib.dll\n");
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HMODULE h = LoadLibrary("tlstest-lib.dll");
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fprintf(stderr, "LoadLibrary tlstest-lib.dll ret %p\n", h);
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if (!h) {
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fprintf(stderr, "Unable to load tlstest-lib.dll\n");
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return 1;
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}
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func = (void (*)(void)) GetProcAddress(h, "func");
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fprintf(stderr, "main, got func address, calling it\n");
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if (func)
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func();
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fprintf(stderr, "main, starting thread2\n");
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HANDLE thread2 = (HANDLE)_beginthreadex(NULL, 0, threadfunc, event2, 0, NULL);
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WaitForSingleObject(event3, INFINITE);
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fprintf(stderr, "main, thread2 started\n");
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SetEvent(event1);
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WaitForSingleObject(event3, INFINITE);
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fprintf(stderr, "main, thread1 work done\n");
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SetEvent(event2);
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WaitForSingleObject(event3, INFINITE);
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fprintf(stderr, "main, thread2 work done\n");
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SetEvent(event1);
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WaitForSingleObject(thread1, INFINITE);
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fprintf(stderr, "main, thread1 joined\n");
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fprintf(stderr, "FreeLibrary\n");
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FreeLibrary(h);
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fprintf(stderr, "FreeLibrary done\n");
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SetEvent(event2);
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WaitForSingleObject(thread2, INFINITE);
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fprintf(stderr, "main, thread2 joined\n");
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static thread_local Hello main_h("main local tls");
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atexit(atexit_func);
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fprintf(stderr, "main done\n");
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return 0;
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}
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