firefox/nsprpub/pr/tests/attach.c

/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

/***********************************************************************
**  1996 - Netscape Communications Corporation
**
** Name: attach.c
**
** Description: Platform-specific code to create a native thread. The native
*thread will
**                            repeatedly call PR_AttachThread and
*PR_DetachThread. The
**                            primordial thread waits for this new thread to
*finish.
**
** Modification History:
** 13-May-97 AGarcia- Converted the test to accomodate the debug_mode flag.
**           The debug mode will print all of the printfs associated with this
*test.
**           The regress mode will be the default mode. Since the regress tool
*limits
**           the output to a one line status:PASS or FAIL,all of the printf
*statements
**           have been handled with an if (debug_mode) statement.
** 04-June-97 AGarcia removed the Test_Result function. Regress tool has been
*updated to
**          recognize the return code from tha main program.
** 12-June-97 Revert to return code 0 and 1.
***********************************************************************/

/***********************************************************************
** Includes
***********************************************************************/

/* Used to get the command line option */
#include "nspr.h"
#include "pprthred.h"
#include "plgetopt.h"

#include <stdio.h>

#ifdef WIN32
#  include <windows.h>
#  include <process.h>
#elif defined(_PR_PTHREADS)
#  include <pthread.h>
#  include "md/_pth.h"
#elif defined(SOLARIS)
#  include <thread.h>
#endif

#define DEFAULT_COUNT 1000
PRIntn failed_already = 0;
PRIntn debug_mode;

int count;

static void AttachDetach(void) {
  PRThread* me;
  PRInt32 index;

  for (index = 0; index < count; index++) {
    me = PR_AttachThread(PR_USER_THREAD, PR_PRIORITY_NORMAL, NULL);

    if (!me) {
      fprintf(stderr, "Error attaching thread %d: PR_AttachThread failed\n",
              count);
      failed_already = 1;
      return;
    }
    PR_DetachThread();
  }
}

/************************************************************************/

static void Measure(void (*func)(void), const char* msg) {
  PRIntervalTime start, stop;
  double d;

  start = PR_IntervalNow();
  (*func)();
  stop = PR_IntervalNow();

  d = (double)PR_IntervalToMicroseconds(stop - start);
  if (debug_mode) {
    printf("%40s: %6.2f usec\n", msg, d / count);
  }
}

#ifdef WIN32
static unsigned __stdcall threadStartFunc(void* arg)
#else
static void* threadStartFunc(void* arg)
#endif
{
  Measure(AttachDetach, "Attach/Detach");

  return 0;
}

int main(int argc, char** argv) {
#ifdef _PR_PTHREADS
  int rv;
  pthread_t threadID;
  pthread_attr_t attr;
#elif defined(SOLARIS)
  int rv;
  thread_t threadID;
#elif defined(WIN32)
  DWORD rv;
  unsigned threadID;
  HANDLE hThread;
#endif

  /* The command line argument: -d is used to determine if the test is being run
  in debug mode. The regress tool requires only one line output:PASS or FAIL.
  All of the printfs associated with this test has been handled with a if
  (debug_mode) test. Usage: test_name [-d] [-c n]
  */
  PLOptStatus os;
  PLOptState* opt = PL_CreateOptState(argc, argv, "dc:");
  while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) {
    if (PL_OPT_BAD == os) {
      continue;
    }
    switch (opt->option) {
      case 'd': /* debug mode */
        debug_mode = 1;
        break;
      case 'c': /* loop count */
        count = atoi(opt->value);
        break;
      default:
        break;
    }
  }
  PL_DestroyOptState(opt);

  if (0 == count) {
    count = DEFAULT_COUNT;
  }

  /*
   * To force the implicit initialization of nspr20
   */
  PR_SetError(0, 0);
  PR_STDIO_INIT();

  /*
   * Platform-specific code to create a native thread.  The native
   * thread will repeatedly call PR_AttachThread and PR_DetachThread.
   * The primordial thread waits for this new thread to finish.
   */

#ifdef _PR_PTHREADS

  rv = _PT_PTHREAD_ATTR_INIT(&attr);
  if (debug_mode) {
    PR_ASSERT(0 == rv);
  } else if (0 != rv) {
    failed_already = 1;
    goto exit_now;
  }

  rv = pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_JOINABLE);
  if (debug_mode) {
    PR_ASSERT(0 == rv);
  } else if (0 != rv) {
    failed_already = 1;
    goto exit_now;
  }
  rv = _PT_PTHREAD_CREATE(&threadID, attr, threadStartFunc, NULL);
  if (rv != 0) {
    fprintf(stderr, "thread creation failed: error code %d\n", rv);
    failed_already = 1;
    goto exit_now;
  } else {
    if (debug_mode) {
      printf("thread creation succeeded \n");
    }
  }
  rv = _PT_PTHREAD_ATTR_DESTROY(&attr);
  if (debug_mode) {
    PR_ASSERT(0 == rv);
  } else if (0 != rv) {
    failed_already = 1;
    goto exit_now;
  }
  rv = pthread_join(threadID, NULL);
  if (debug_mode) {
    PR_ASSERT(0 == rv);
  } else if (0 != rv) {
    failed_already = 1;
    goto exit_now;
  }

#elif defined(SOLARIS)

  rv = thr_create(NULL, 0, threadStartFunc, NULL, 0, &threadID);
  if (rv != 0) {
    if (!debug_mode) {
      failed_already = 1;
      goto exit_now;
    } else {
      fprintf(stderr, "thread creation failed: error code %d\n", rv);
    }
  }
  rv = thr_join(threadID, NULL, NULL);
  if (debug_mode) {
    PR_ASSERT(0 == rv);
  } else if (0 != rv) {
    failed_already = 1;
    goto exit_now;
  }

#elif defined(WIN32)

  hThread =
      (HANDLE)_beginthreadex(NULL, 0, threadStartFunc, NULL,
                             STACK_SIZE_PARAM_IS_A_RESERVATION, &threadID);
  if (hThread == 0) {
    fprintf(stderr, "thread creation failed: error code %d\n", GetLastError());
    failed_already = 1;
    goto exit_now;
  }
  rv = WaitForSingleObject(hThread, INFINITE);
  if (debug_mode) {
    PR_ASSERT(rv != WAIT_FAILED);
  } else if (rv == WAIT_FAILED) {
    failed_already = 1;
    goto exit_now;
  }

#else
  if (!debug_mode) {
    failed_already = 1;
  } else
    printf(
        "The attach test does not apply to this platform because\n"
        "either this platform does not have native threads or the\n"
        "test needs to be written for this platform.\n");
  goto exit_now;
#endif

exit_now:
  if (failed_already) {
    return 1;
  } else {
    return 0;
  }
}