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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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* The contents of this file are subject to the Mozilla Public
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* License Version 1.1 (the "License"); you may not use this file
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* except in compliance with the License. You may obtain a copy of
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* the License at http://www.mozilla.org/MPL/
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* Software distributed under the License is distributed on an "AS
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* IS" basis, WITHOUT WARRANTY OF ANY KIND, either express or
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* implied. See the License for the specific language governing
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* rights and limitations under the License.
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* The Original Code is the Netscape Portable Runtime (NSPR).
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* The Initial Developer of the Original Code is Netscape
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* Communications Corporation. Portions created by Netscape are
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* Copyright (C) 1998-2000 Netscape Communications Corporation. All
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* Alternatively, the contents of this file may be used under the
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* terms of the GNU General Public License Version 2 or later (the
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* "GPL"), in which case the provisions of the GPL are applicable
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* instead of those above. If you wish to allow use of your
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* version of this file only under the terms of the GPL and not to
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* allow others to use your version of this file under the MPL,
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* indicate your decision by deleting the provisions above and
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* replace them with the notice and other provisions required by
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* the GPL. If you do not delete the provisions above, a recipient
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* may use your version of this file under either the MPL or the
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** description: test the process machinery
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/* for the default test 'cvar -c 2000' */
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static char *default_argv[] = {"cvar", "-c", "2000", NULL};
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static void PrintUsage(void)
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PR_fprintf(PR_GetSpecialFD(PR_StandardError),
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"Usage: parent [-d] child [options]\n");
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PRIntn main (PRIntn argc, char **argv)
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PRInt32 test_status = 1;
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PRIntervalTime t_start, t_elapsed;
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PRFileDesc *debug = NULL;
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Child *child = PR_NEWZAP(Child);
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/* no command-line arguments: run the default test */
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child->argv = default_argv;
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argv += 1; /* don't care about our program name */
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while (*argv != NULL && argv[0][0] == '-')
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if (argv[0][1] == 'd')
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debug = PR_GetSpecialFD(PR_StandardError);
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return 2; /* not sufficient */
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if (NULL == *child->argv)
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child->name = *child->argv;
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if (NULL != debug) PR_fprintf(debug, "Forking %s\n", child->name);
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child->attr = PR_NewProcessAttr();
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PR_ProcessAttrSetStdioRedirect(
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child->attr, PR_StandardOutput,
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PR_GetSpecialFD(PR_StandardOutput));
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PR_ProcessAttrSetStdioRedirect(
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child->attr, PR_StandardError,
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PR_GetSpecialFD(PR_StandardError));
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t_start = PR_IntervalNow();
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child->process = PR_CreateProcess(
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child->name, child->argv, NULL, child->attr);
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t_elapsed = (PRIntervalTime) (PR_IntervalNow() - t_start);
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PR_DestroyProcessAttr(child->attr);
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test_status = (NULL == child->process) ? 1 : 0;
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debug, "Child was %sforked\n",
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(0 == test_status) ? "" : "NOT ");
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if (0 == test_status)
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debug, "PR_CreateProcess took %lu microseconds\n",
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PR_IntervalToMicroseconds(t_elapsed));
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if (0 == test_status)
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if (NULL != debug) PR_fprintf(debug, "Waiting for child to exit\n");
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rv = PR_WaitProcess(child->process, &test_status);
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if (PR_SUCCESS == rv)
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debug, "Child exited %s\n",
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(0 == test_status) ? "successfully" : "with error");
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PR_fprintf(debug, "PR_WaitProcess failed\n");