1.1 --- /dev/null Thu Jan 01 00:00:00 1970 +0000
1.2 +++ b/nsprpub/pr/tests/parent.c Wed Dec 31 06:09:35 2014 +0100
1.3 @@ -0,0 +1,125 @@
1.4 +/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
1.5 +/* This Source Code Form is subject to the terms of the Mozilla Public
1.6 + * License, v. 2.0. If a copy of the MPL was not distributed with this
1.7 + * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
1.8 +
1.9 +/*
1.10 +** file: parent.c
1.11 +** description: test the process machinery
1.12 +*/
1.13 +
1.14 +#include "prmem.h"
1.15 +#include "prprf.h"
1.16 +#include "prinit.h"
1.17 +#include "prproces.h"
1.18 +#include "prinrval.h"
1.19 +
1.20 +typedef struct Child
1.21 +{
1.22 + const char *name;
1.23 + char **argv;
1.24 + PRProcess *process;
1.25 + PRProcessAttr *attr;
1.26 +} Child;
1.27 +
1.28 +/* for the default test 'cvar -c 2000' */
1.29 +static char *default_argv[] = {"cvar", "-c", "2000", NULL};
1.30 +
1.31 +static void PrintUsage(void)
1.32 +{
1.33 + PR_fprintf(PR_GetSpecialFD(PR_StandardError),
1.34 + "Usage: parent [-d] child [options]\n");
1.35 +}
1.36 +
1.37 +int main(int argc, char **argv)
1.38 +{
1.39 + PRStatus rv;
1.40 + PRInt32 test_status = 1;
1.41 + PRIntervalTime t_start, t_elapsed;
1.42 + PRFileDesc *debug = NULL;
1.43 + Child *child = PR_NEWZAP(Child);
1.44 +
1.45 + if (1 == argc)
1.46 + {
1.47 + /* no command-line arguments: run the default test */
1.48 + child->argv = default_argv;
1.49 + }
1.50 + else
1.51 + {
1.52 + argv += 1; /* don't care about our program name */
1.53 + while (*argv != NULL && argv[0][0] == '-')
1.54 + {
1.55 + if (argv[0][1] == 'd')
1.56 + debug = PR_GetSpecialFD(PR_StandardError);
1.57 + else
1.58 + {
1.59 + PrintUsage();
1.60 + return 2; /* not sufficient */
1.61 + }
1.62 + argv += 1;
1.63 + }
1.64 + child->argv = argv;
1.65 + }
1.66 +
1.67 + if (NULL == *child->argv)
1.68 + {
1.69 + PrintUsage();
1.70 + return 2;
1.71 + }
1.72 +
1.73 + child->name = *child->argv;
1.74 + if (NULL != debug) PR_fprintf(debug, "Forking %s\n", child->name);
1.75 +
1.76 + child->attr = PR_NewProcessAttr();
1.77 + PR_ProcessAttrSetStdioRedirect(
1.78 + child->attr, PR_StandardOutput,
1.79 + PR_GetSpecialFD(PR_StandardOutput));
1.80 + PR_ProcessAttrSetStdioRedirect(
1.81 + child->attr, PR_StandardError,
1.82 + PR_GetSpecialFD(PR_StandardError));
1.83 +
1.84 + t_start = PR_IntervalNow();
1.85 + child->process = PR_CreateProcess(
1.86 + child->name, child->argv, NULL, child->attr);
1.87 + t_elapsed = (PRIntervalTime) (PR_IntervalNow() - t_start);
1.88 +
1.89 + PR_DestroyProcessAttr(child->attr);
1.90 +
1.91 + test_status = (NULL == child->process) ? 1 : 0;
1.92 + if (NULL != debug)
1.93 + {
1.94 + PR_fprintf(
1.95 + debug, "Child was %sforked\n",
1.96 + (0 == test_status) ? "" : "NOT ");
1.97 + if (0 == test_status)
1.98 + PR_fprintf(
1.99 + debug, "PR_CreateProcess took %lu microseconds\n",
1.100 + PR_IntervalToMicroseconds(t_elapsed));
1.101 + }
1.102 +
1.103 + if (0 == test_status)
1.104 + {
1.105 + if (NULL != debug) PR_fprintf(debug, "Waiting for child to exit\n");
1.106 + rv = PR_WaitProcess(child->process, &test_status);
1.107 + if (PR_SUCCESS == rv)
1.108 + {
1.109 + if (NULL != debug)
1.110 + PR_fprintf(
1.111 + debug, "Child exited %s\n",
1.112 + (0 == test_status) ? "successfully" : "with error");
1.113 + }
1.114 + else
1.115 + {
1.116 + test_status = 1;
1.117 + if (NULL != debug)
1.118 + PR_fprintf(debug, "PR_WaitProcess failed\n");
1.119 + }
1.120 + }
1.121 + PR_DELETE(child);
1.122 + PR_Cleanup();
1.123 + return test_status;
1.124 +
1.125 +} /* main */
1.126 +
1.127 +/* parent.c */
1.128 +
