143 lines
3 KiB
C
143 lines
3 KiB
C
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/*
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* File: context1.c
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*
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*
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* --------------------------------------------------------------------------
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*
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* Pthreads-win32 - POSIX Threads Library for Win32
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* Copyright(C) 1998 John E. Bossom
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* Copyright(C) 1999,2005 Pthreads-win32 contributors
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*
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* Contact Email: rpj@callisto.canberra.edu.au
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*
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* The current list of contributors is contained
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* in the file CONTRIBUTORS included with the source
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* code distribution. The list can also be seen at the
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* following World Wide Web location:
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* http://sources.redhat.com/pthreads-win32/contributors.html
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library in the file COPYING.LIB;
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* if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA
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*
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* --------------------------------------------------------------------------
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*
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* Test Synopsis: Test context switching method.
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*
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* Test Method (Validation or Falsification):
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* -
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*
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* Requirements Tested:
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* -
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*
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* Features Tested:
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* -
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*
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* Cases Tested:
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* -
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*
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* Description:
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* -
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*
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* Environment:
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* -
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*
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* Input:
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* - None.
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*
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* Output:
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* - File name, Line number, and failed expression on failure.
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* - No output on success.
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*
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* Assumptions:
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* - pthread_create
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* pthread_exit
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*
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* Pass Criteria:
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* - Process returns zero exit status.
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*
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* Fail Criteria:
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* - Process returns non-zero exit status.
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*/
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#define _WIN32_WINNT 0x400
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#include "test.h"
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#include "../implement.h"
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#include "../context.h"
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static int washere = 0;
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static void * func(void * arg)
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{
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washere = 1;
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Sleep(1000);
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return 0;
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}
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static void
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anotherEnding ()
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{
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/*
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* Switched context
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*/
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washere++;
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pthread_exit(0);
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}
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int
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main()
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{
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pthread_t t;
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HANDLE hThread;
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assert(pthread_create(&t, NULL, func, NULL) == 0);
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hThread = ((ptw32_thread_t *)t.p)->threadH;
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Sleep(500);
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SuspendThread(hThread);
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if (WaitForSingleObject(hThread, 0) == WAIT_TIMEOUT)
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{
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/*
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* Ok, thread did not exit before we got to it.
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*/
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CONTEXT context;
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context.ContextFlags = CONTEXT_CONTROL;
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GetThreadContext(hThread, &context);
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PTW32_PROGCTR (context) = (DWORD_PTR) anotherEnding;
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SetThreadContext(hThread, &context);
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ResumeThread(hThread);
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}
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else
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{
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printf("Exited early\n");
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fflush(stdout);
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}
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Sleep(1000);
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assert(washere == 2);
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return 0;
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}
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