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532 lines
15 KiB
532 lines
15 KiB
/*============================================================================
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KWSys - Kitware System Library
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Copyright 2000-2009 Kitware, Inc., Insight Software Consortium
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Distributed under the OSI-approved BSD License (the "License");
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see accompanying file Copyright.txt for details.
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This software is distributed WITHOUT ANY WARRANTY; without even the
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implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
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See the License for more information.
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============================================================================*/
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#include "kwsysPrivate.h"
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#include KWSYS_HEADER(Process.h)
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/* Work-around CMake dependency scanning limitation. This must
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duplicate the above list of headers. */
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#if 0
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# include "Process.h.in"
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#endif
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#if defined(_WIN32)
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# include <windows.h>
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#else
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# include <unistd.h>
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#endif
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#if defined(__BORLANDC__)
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# pragma warn -8060 /* possibly incorrect assignment */
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#endif
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#if defined(__BEOS__) && !defined(__ZETA__)
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/* BeOS 5 doesn't have usleep(), but it has snooze(), which is identical. */
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# include <be/kernel/OS.h>
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static inline void testProcess_usleep(unsigned int msec)
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{
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snooze(msec);
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}
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#else
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# define testProcess_usleep usleep
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#endif
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int runChild(const char* cmd[], int state, int exception, int value,
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int share, int output, int delay, double timeout, int poll,
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int repeat, int disown);
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static int test1(int argc, const char* argv[])
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{
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(void)argc; (void)argv;
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fprintf(stdout, "Output on stdout from test returning 0.\n");
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fprintf(stderr, "Output on stderr from test returning 0.\n");
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return 0;
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}
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static int test2(int argc, const char* argv[])
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{
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(void)argc; (void)argv;
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fprintf(stdout, "Output on stdout from test returning 123.\n");
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fprintf(stderr, "Output on stderr from test returning 123.\n");
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return 123;
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}
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static int test3(int argc, const char* argv[])
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{
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(void)argc; (void)argv;
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fprintf(stdout, "Output before sleep on stdout from timeout test.\n");
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fprintf(stderr, "Output before sleep on stderr from timeout test.\n");
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fflush(stdout);
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fflush(stderr);
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#if defined(_WIN32)
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Sleep(15000);
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#else
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sleep(15);
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#endif
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fprintf(stdout, "Output after sleep on stdout from timeout test.\n");
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fprintf(stderr, "Output after sleep on stderr from timeout test.\n");
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return 0;
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}
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static int test4(int argc, const char* argv[])
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{
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/* Prepare a pointer to an invalid address. Don't use null, because
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dereferencing null is undefined behaviour and compilers are free to
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do whatever they want. ex: Clang will warn at compile time, or even
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optimize away the write. We hope to 'outsmart' them by using
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'volatile' and a slightly larger address, based on a runtime value. */
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volatile int* invalidAddress = 0;
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invalidAddress += argc?1:2;
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#if defined(_WIN32)
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/* Avoid error diagnostic popups since we are crashing on purpose. */
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SetErrorMode(SEM_FAILCRITICALERRORS | SEM_NOGPFAULTERRORBOX);
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#elif defined(__BEOS__) || defined(__HAIKU__)
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/* Avoid error diagnostic popups since we are crashing on purpose. */
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disable_debugger(1);
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#endif
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(void)argc; (void)argv;
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fprintf(stdout, "Output before crash on stdout from crash test.\n");
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fprintf(stderr, "Output before crash on stderr from crash test.\n");
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fflush(stdout);
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fflush(stderr);
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/* Provoke deliberate crash by writing to the invalid address. */
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*invalidAddress = 0;
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fprintf(stdout, "Output after crash on stdout from crash test.\n");
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fprintf(stderr, "Output after crash on stderr from crash test.\n");
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return 0;
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}
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static int test5(int argc, const char* argv[])
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{
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int r;
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const char* cmd[4];
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(void)argc;
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cmd[0] = argv[0];
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cmd[1] = "run";
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cmd[2] = "4";
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cmd[3] = 0;
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fprintf(stdout, "Output on stdout before recursive test.\n");
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fprintf(stderr, "Output on stderr before recursive test.\n");
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fflush(stdout);
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fflush(stderr);
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r = runChild(cmd, kwsysProcess_State_Exception,
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kwsysProcess_Exception_Fault, 1, 1, 1, 0, 15, 0, 1, 0);
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fprintf(stdout, "Output on stdout after recursive test.\n");
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fprintf(stderr, "Output on stderr after recursive test.\n");
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fflush(stdout);
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fflush(stderr);
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return r;
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}
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#define TEST6_SIZE (4096*2)
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static void test6(int argc, const char* argv[])
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{
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int i;
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char runaway[TEST6_SIZE+1];
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(void)argc; (void)argv;
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for(i=0;i < TEST6_SIZE;++i)
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{
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runaway[i] = '.';
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}
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runaway[TEST6_SIZE] = '\n';
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/* Generate huge amounts of output to test killing. */
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for(;;)
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{
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fwrite(runaway, 1, TEST6_SIZE+1, stdout);
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fflush(stdout);
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}
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}
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/* Define MINPOLL to be one more than the number of times output is
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written. Define MAXPOLL to be the largest number of times a loop
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delaying 1/10th of a second should ever have to poll. */
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#define MINPOLL 5
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#define MAXPOLL 20
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static int test7(int argc, const char* argv[])
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{
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(void)argc; (void)argv;
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fprintf(stdout, "Output on stdout before sleep.\n");
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fprintf(stderr, "Output on stderr before sleep.\n");
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fflush(stdout);
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fflush(stderr);
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/* Sleep for 1 second. */
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#if defined(_WIN32)
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Sleep(1000);
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#else
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sleep(1);
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#endif
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fprintf(stdout, "Output on stdout after sleep.\n");
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fprintf(stderr, "Output on stderr after sleep.\n");
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fflush(stdout);
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fflush(stderr);
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return 0;
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}
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static int test8(int argc, const char* argv[])
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{
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/* Create a disowned grandchild to test handling of processes
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that exit before their children. */
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int r;
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const char* cmd[4];
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(void)argc;
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cmd[0] = argv[0];
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cmd[1] = "run";
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cmd[2] = "108";
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cmd[3] = 0;
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fprintf(stdout, "Output on stdout before grandchild test.\n");
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fprintf(stderr, "Output on stderr before grandchild test.\n");
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fflush(stdout);
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fflush(stderr);
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r = runChild(cmd, kwsysProcess_State_Disowned, kwsysProcess_Exception_None,
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1, 1, 1, 0, 10, 0, 1, 1);
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fprintf(stdout, "Output on stdout after grandchild test.\n");
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fprintf(stderr, "Output on stderr after grandchild test.\n");
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fflush(stdout);
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fflush(stderr);
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return r;
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}
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static int test8_grandchild(int argc, const char* argv[])
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{
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(void)argc; (void)argv;
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fprintf(stdout, "Output on stdout from grandchild before sleep.\n");
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fprintf(stderr, "Output on stderr from grandchild before sleep.\n");
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fflush(stdout);
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fflush(stderr);
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/* TODO: Instead of closing pipes here leave them open to make sure
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the grandparent can stop listening when the parent exits. This
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part of the test cannot be enabled until the feature is
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implemented. */
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fclose(stdout);
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fclose(stderr);
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#if defined(_WIN32)
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Sleep(15000);
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#else
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sleep(15);
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#endif
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return 0;
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}
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static int runChild2(kwsysProcess* kp,
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const char* cmd[], int state, int exception, int value,
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int share, int output, int delay, double timeout,
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int poll, int disown)
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{
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int result = 0;
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char* data = 0;
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int length = 0;
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double userTimeout = 0;
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double* pUserTimeout = 0;
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kwsysProcess_SetCommand(kp, cmd);
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if(timeout >= 0)
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{
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kwsysProcess_SetTimeout(kp, timeout);
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}
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if(share)
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{
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kwsysProcess_SetPipeShared(kp, kwsysProcess_Pipe_STDOUT, 1);
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kwsysProcess_SetPipeShared(kp, kwsysProcess_Pipe_STDERR, 1);
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}
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if(disown)
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{
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kwsysProcess_SetOption(kp, kwsysProcess_Option_Detach, 1);
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}
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kwsysProcess_Execute(kp);
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if(poll)
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{
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pUserTimeout = &userTimeout;
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}
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if(!share && !disown)
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{
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int p;
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while((p = kwsysProcess_WaitForData(kp, &data, &length, pUserTimeout)))
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{
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if(output)
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{
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if(poll && p == kwsysProcess_Pipe_Timeout)
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{
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fprintf(stdout, "WaitForData timeout reached.\n");
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fflush(stdout);
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/* Count the number of times we polled without getting data.
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If it is excessive then kill the child and fail. */
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if(++poll >= MAXPOLL)
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{
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fprintf(stdout, "Poll count reached limit %d.\n",
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MAXPOLL);
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kwsysProcess_Kill(kp);
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}
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}
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else
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{
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fwrite(data, 1, (size_t) length, stdout);
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fflush(stdout);
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}
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}
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if(poll)
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{
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/* Delay to avoid busy loop during polling. */
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#if defined(_WIN32)
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Sleep(100);
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#else
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testProcess_usleep(100000);
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#endif
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}
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if(delay)
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{
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/* Purposely sleeping only on Win32 to let pipe fill up. */
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#if defined(_WIN32)
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Sleep(100);
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#endif
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}
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}
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}
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if(disown)
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{
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kwsysProcess_Disown(kp);
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}
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else
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{
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kwsysProcess_WaitForExit(kp, 0);
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}
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switch (kwsysProcess_GetState(kp))
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{
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case kwsysProcess_State_Starting:
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printf("No process has been executed.\n"); break;
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case kwsysProcess_State_Executing:
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printf("The process is still executing.\n"); break;
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case kwsysProcess_State_Expired:
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printf("Child was killed when timeout expired.\n"); break;
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case kwsysProcess_State_Exited:
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printf("Child exited with value = %d\n",
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kwsysProcess_GetExitValue(kp));
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result = ((exception != kwsysProcess_GetExitException(kp)) ||
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(value != kwsysProcess_GetExitValue(kp))); break;
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case kwsysProcess_State_Killed:
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printf("Child was killed by parent.\n"); break;
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case kwsysProcess_State_Exception:
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printf("Child terminated abnormally: %s\n",
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kwsysProcess_GetExceptionString(kp));
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result = ((exception != kwsysProcess_GetExitException(kp)) ||
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(value != kwsysProcess_GetExitValue(kp))); break;
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case kwsysProcess_State_Disowned:
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printf("Child was disowned.\n"); break;
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case kwsysProcess_State_Error:
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printf("Error in administrating child process: [%s]\n",
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kwsysProcess_GetErrorString(kp)); break;
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};
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if(result)
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{
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if(exception != kwsysProcess_GetExitException(kp))
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{
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fprintf(stderr, "Mismatch in exit exception. "
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"Should have been %d, was %d.\n",
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exception, kwsysProcess_GetExitException(kp));
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}
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if(value != kwsysProcess_GetExitValue(kp))
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{
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fprintf(stderr, "Mismatch in exit value. "
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"Should have been %d, was %d.\n",
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value, kwsysProcess_GetExitValue(kp));
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}
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}
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if(kwsysProcess_GetState(kp) != state)
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{
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fprintf(stderr, "Mismatch in state. "
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"Should have been %d, was %d.\n",
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state, kwsysProcess_GetState(kp));
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result = 1;
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}
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/* We should have polled more times than there were data if polling
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was enabled. */
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if(poll && poll < MINPOLL)
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{
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fprintf(stderr, "Poll count is %d, which is less than %d.\n",
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poll, MINPOLL);
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result = 1;
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}
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return result;
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}
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int runChild(const char* cmd[], int state, int exception, int value,
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int share, int output, int delay, double timeout,
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int poll, int repeat, int disown)
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{
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int result = 1;
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kwsysProcess* kp = kwsysProcess_New();
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if(!kp)
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{
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fprintf(stderr, "kwsysProcess_New returned NULL!\n");
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return 1;
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}
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while(repeat-- > 0)
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{
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result = runChild2(kp, cmd, state, exception, value, share,
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output, delay, timeout, poll, disown);
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}
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kwsysProcess_Delete(kp);
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return result;
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}
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int main(int argc, const char* argv[])
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{
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int n = 0;
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#if 0
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{
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HANDLE out = GetStdHandle(STD_OUTPUT_HANDLE);
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DuplicateHandle(GetCurrentProcess(), out,
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GetCurrentProcess(), &out, 0, FALSE,
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DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
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SetStdHandle(STD_OUTPUT_HANDLE, out);
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}
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{
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HANDLE out = GetStdHandle(STD_ERROR_HANDLE);
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DuplicateHandle(GetCurrentProcess(), out,
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GetCurrentProcess(), &out, 0, FALSE,
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DUPLICATE_SAME_ACCESS | DUPLICATE_CLOSE_SOURCE);
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SetStdHandle(STD_ERROR_HANDLE, out);
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}
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#endif
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if(argc == 2)
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{
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n = atoi(argv[1]);
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}
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else if(argc == 3 && strcmp(argv[1], "run") == 0)
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{
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n = atoi(argv[2]);
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}
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/* Check arguments. */
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if(((n >= 1 && n <= 8) || n == 108) && argc == 3)
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{
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/* This is the child process for a requested test number. */
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switch (n)
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{
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case 1: return test1(argc, argv);
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case 2: return test2(argc, argv);
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case 3: return test3(argc, argv);
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case 4: return test4(argc, argv);
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case 5: return test5(argc, argv);
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case 6: test6(argc, argv); return 0;
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case 7: return test7(argc, argv);
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case 8: return test8(argc, argv);
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case 108: return test8_grandchild(argc, argv);
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}
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fprintf(stderr, "Invalid test number %d.\n", n);
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return 1;
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}
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else if(n >= 1 && n <= 8)
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{
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/* This is the parent process for a requested test number. */
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int states[8] =
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{
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kwsysProcess_State_Exited,
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kwsysProcess_State_Exited,
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kwsysProcess_State_Expired,
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kwsysProcess_State_Exception,
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kwsysProcess_State_Exited,
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kwsysProcess_State_Expired,
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kwsysProcess_State_Exited,
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kwsysProcess_State_Exited
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};
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int exceptions[8] =
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{
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kwsysProcess_Exception_None,
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kwsysProcess_Exception_None,
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kwsysProcess_Exception_None,
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kwsysProcess_Exception_Fault,
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kwsysProcess_Exception_None,
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kwsysProcess_Exception_None,
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kwsysProcess_Exception_None,
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kwsysProcess_Exception_None
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};
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int values[8] = {0, 123, 1, 1, 0, 0, 0, 0};
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int outputs[8] = {1, 1, 1, 1, 1, 0, 1, 1};
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int delays[8] = {0, 0, 0, 0, 0, 1, 0, 0};
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double timeouts[8] = {10, 10, 10, 30, 30, 10, -1, 10};
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int polls[8] = {0, 0, 0, 0, 0, 0, 1, 0};
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int repeat[8] = {2, 1, 1, 1, 1, 1, 1, 1};
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int r;
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const char* cmd[4];
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#ifdef _WIN32
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char* argv0 = 0;
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if(n == 0 && (argv0 = strdup(argv[0])))
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{
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/* Try converting to forward slashes to see if it works. */
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char* c;
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for(c=argv0; *c; ++c)
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{
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if(*c == '\\')
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{
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*c = '/';
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}
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}
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cmd[0] = argv0;
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}
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else
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{
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cmd[0] = argv[0];
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}
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#else
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cmd[0] = argv[0];
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#endif
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cmd[1] = "run";
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cmd[2] = argv[1];
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cmd[3] = 0;
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fprintf(stdout, "Output on stdout before test %d.\n", n);
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fprintf(stderr, "Output on stderr before test %d.\n", n);
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fflush(stdout);
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fflush(stderr);
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r = runChild(cmd, states[n-1], exceptions[n-1], values[n-1], 0,
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outputs[n-1], delays[n-1], timeouts[n-1],
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polls[n-1], repeat[n-1], 0);
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fprintf(stdout, "Output on stdout after test %d.\n", n);
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fprintf(stderr, "Output on stderr after test %d.\n", n);
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fflush(stdout);
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fflush(stderr);
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#if defined(_WIN32)
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if(argv0) { free(argv0); }
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#endif
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return r;
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}
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else if(argc > 2 && strcmp(argv[1], "0") == 0)
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{
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/* This is the special debugging test to run a given command
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line. */
|
|
const char** cmd = argv+2;
|
|
int state = kwsysProcess_State_Exited;
|
|
int exception = kwsysProcess_Exception_None;
|
|
int value = 0;
|
|
double timeout = 0;
|
|
int r = runChild(cmd, state, exception, value, 0, 1, 0, timeout, 0, 1, 0);
|
|
return r;
|
|
}
|
|
else
|
|
{
|
|
/* Improper usage. */
|
|
fprintf(stdout, "Usage: %s <test number>\n", argv[0]);
|
|
return 1;
|
|
}
|
|
}
|