The Tor Browser: nsprpub/pr/tests/parent.c@6474c204b198

Cloned upstream origin tor-browser at tor-browser-31.3.0esr-4.5-1-build1
revision ID fc1c9ff7c1b2defdbc039f12214767608f46423f for hacking purpose.

     1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */

     2 /* This Source Code Form is subject to the terms of the Mozilla Public

     3  * License, v. 2.0. If a copy of the MPL was not distributed with this

     4  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

     6 /*

     7 ** file:        parent.c

     8 ** description: test the process machinery

     9 */

    11 #include "prmem.h"

    12 #include "prprf.h"

    13 #include "prinit.h"

    14 #include "prproces.h"

    15 #include "prinrval.h"

    17 typedef struct Child

    18 {

    19     const char *name;

    20     char **argv;

    21     PRProcess *process;

    22     PRProcessAttr *attr;

    23 } Child;

    25 /* for the default test 'cvar -c 2000' */

    26 static char *default_argv[] = {"cvar", "-c", "2000", NULL};

    28 static void PrintUsage(void)

    29 {

    30     PR_fprintf(PR_GetSpecialFD(PR_StandardError),

    31         "Usage: parent [-d] child [options]\n");

    32 }

    34 int main(int argc, char **argv)

    35 {

    36     PRStatus rv;

    37     PRInt32 test_status = 1;

    38     PRIntervalTime t_start, t_elapsed;

    39     PRFileDesc *debug = NULL;

    40     Child *child = PR_NEWZAP(Child);

    42     if (1 == argc)

    43     {

    44         /* no command-line arguments: run the default test */

    45         child->argv = default_argv;

    46     }

    47     else

    48     {

    49         argv += 1;  /* don't care about our program name */

    50         while (*argv != NULL && argv[0][0] == '-')

    51         {

    52             if (argv[0][1] == 'd')

    53                 debug = PR_GetSpecialFD(PR_StandardError);

    54             else

    55             {

    56                 PrintUsage();

    57                 return 2;  /* not sufficient */

    58             }

    59             argv += 1;

    60         }

    61         child->argv = argv;

    62     }

    64     if (NULL == *child->argv)

    65     {

    66         PrintUsage();

    67         return 2;

    68     }

    70     child->name = *child->argv;

    71     if (NULL != debug) PR_fprintf(debug, "Forking %s\n", child->name);

    73     child->attr = PR_NewProcessAttr();

    74     PR_ProcessAttrSetStdioRedirect(

    75         child->attr, PR_StandardOutput,

    76         PR_GetSpecialFD(PR_StandardOutput));

    77     PR_ProcessAttrSetStdioRedirect(

    78         child->attr, PR_StandardError,

    79         PR_GetSpecialFD(PR_StandardError));

    81     t_start = PR_IntervalNow();

    82     child->process = PR_CreateProcess(

    83         child->name, child->argv, NULL, child->attr);

    84     t_elapsed = (PRIntervalTime) (PR_IntervalNow() - t_start);

    86     PR_DestroyProcessAttr(child->attr);

    88     test_status = (NULL == child->process) ? 1 : 0;

    89     if (NULL != debug)

    90     {

    91         PR_fprintf(

    92             debug, "Child was %sforked\n",

    93             (0 == test_status) ? "" : "NOT ");

    94         if (0 == test_status)

    95             PR_fprintf(

    96                 debug, "PR_CreateProcess took %lu microseconds\n",

    97                 PR_IntervalToMicroseconds(t_elapsed));

    98     }

   100     if (0 == test_status)

   101     {

   102         if (NULL != debug) PR_fprintf(debug, "Waiting for child to exit\n");

   103         rv = PR_WaitProcess(child->process, &test_status);

   104         if (PR_SUCCESS == rv)

   105         {

   106             if (NULL != debug)

   107                 PR_fprintf(

   108                     debug, "Child exited %s\n",

   109                     (0 == test_status) ? "successfully" : "with error");

   110         }

   111         else

   112         {

   113             test_status = 1;

   114             if (NULL != debug)

   115                 PR_fprintf(debug, "PR_WaitProcess failed\n");

   116         }

   117     }

   118     PR_DELETE(child);

   119     PR_Cleanup();

   120     return test_status;

   122 }  /* main */

   124 /* parent.c */

The Tor Browser / file revision