/************************************************************************ * * 0.process.cpp - test exercising the rw_process_create(), * rw_process_kill() and rw_waitpid() functions * * $Id: 0.process.cpp 580483 2007-09-28 20:55:52Z sebor $ * ************************************************************************ * * Licensed to the Apache Software Foundation (ASF) under one or more * contributor license agreements. See the NOTICE file distributed * with this work for additional information regarding copyright * ownership. The ASF licenses this file to you under the Apache * License, Version 2.0 (the "License"); you may not use this file * except in compliance with the License. You may obtain a copy of * the License at * * http://www.apache.org/licenses/LICENSE-2.0 * * Unless required by applicable law or agreed to in writing, software * distributed under the License is distributed on an "AS IS" BASIS, * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or * implied. See the License for the specific language governing * permissions and limitations under the License. * **************************************************************************/ // tell Compaq C++ we need POSIX errno constants that are otherwise // guarded (not defined) in the compiler's pure C++ libc headers #undef __PURE_CNAME #include // for ENOENT, ECHILD, ESRCH, errno #include // for strcmp() #include // for rw_process_create(), rw_waitpid() #include // for rw_test() static int _rw_child = 0; static int _rw_timeout = 5; static char arg1[] = "--child=1"; static char arg2[] = "--no-stdout"; static char* args [] = { 0, arg1, arg2, 0 }; static const int nargs = sizeof (args) / sizeof (*args) - 1; static rw_pid_t _rw_pid = -1; static int join_test (rw_pid_t pid, bool should_hang) { int result = 0; const rw_pid_t ret = rw_waitpid (pid, &result, _rw_timeout); rw_assert (-1 != ret, __FILE__, __LINE__, "rw_waitpid() failed, errno = %{#m}"); if (-1 == ret) return 1; if (0 == ret) { // set to ignore rw_error diagnostic rw_enable (rw_error, false); // time_out elapsed, kill the process if (1 == rw_process_kill (pid)) { // the process not yet terminated // wait for process termination and remove the zombie process rw_waitpid (pid, 0); } // enable rw_error diagnostic rw_enable (rw_error); rw_assert (should_hang, __FILE__, __LINE__, "The child process unexpectedly deadlocked"); return should_hang ? 0 : 1; } rw_assert (!should_hang, __FILE__, __LINE__, "Expected the deadlocked process, but process exited " "with code: %d", result); if (!should_hang) rw_assert (0 == result, __FILE__, __LINE__, "Process exit code: expected 0, got %d", result); return result; } static int test_process_create1 () { rw_info (0, 0, 0, "Exercising the rw_process_create " "(const char*, char* const []) overload"); const rw_pid_t pid = rw_process_create (args [0], args); rw_assert (-1 != pid, __FILE__, __LINE__, "rw_process_create() failed, errno = %{#m}"); if (-1 == pid) return 1; // save the pid for test exercising rw_waitpid() fail if (-1 == _rw_pid) _rw_pid = pid; return join_test (pid, false); } static int test_process_create2 () { rw_info (0, 0, 0, "Exercising the rw_process_create (const char*, ...) overload"); const rw_pid_t pid = rw_process_create ("\"%s\" %s %s", args[0], args[1], args[2]); rw_assert (-1 != pid, __FILE__, __LINE__, "rw_process_create() failed, errno = %{#m}"); if (-1 == pid) return 1; // save the pid for test exercising rw_waitpid() fail if (-1 == _rw_pid) _rw_pid = pid; return join_test (pid, false); } static int test_process_deadlocked () { rw_info (0, 0, 0, "Exercising the rw_waitpid() with timeout and deadlocked process"); const rw_pid_t pid = rw_process_create ("\"%s\" --child=2 %s", args[0], args[2]); rw_assert (-1 != pid, __FILE__, __LINE__, "rw_process_create() failed, errno = %{#m}"); return -1 == pid ? 1 : join_test (pid, true); } static int test_process_create_fail () { rw_info (0, 0, 0, "Exercising the rw_process_create() behavior " "when invalid path specified"); // set to ignore rw_error diagnostic rw_enable (rw_error, false); const rw_pid_t pid = rw_process_create ("/\\/\\/\\", args); // enable rw_error diagnostic rw_enable (rw_error); rw_assert (-1 == pid, __FILE__, __LINE__, "rw_process_create returns %ld, expected -1", long (pid)); if (-1 != pid) { rw_waitpid (pid, 0); return 1; } rw_assert (ENOENT == errno, __FILE__, __LINE__, "errno: expected ENOENT, got %{#m}"); return ENOENT == errno ? 0 : 1; } static int test_waitpid_fail () { if (-1 == _rw_pid) { rw_info (0, 0, 0, "The test, exercising the rw_waitpid() behavior " "when invalid pid specified is disabled"); return 0; } rw_info (0, 0, 0, "Exercising the rw_waitpid() behavior " "when invalid pid specified"); // set to ignore rw_error diagnostic rw_enable (rw_error, false); const rw_pid_t pid = rw_waitpid (_rw_pid, 0); // enable rw_error diagnostic rw_enable (rw_error); rw_assert (-1 == pid, __FILE__, __LINE__, "rw_waitpid returns %ld, expected -1", long (pid)); if (-1 != pid) return 1; rw_assert (ECHILD == errno, __FILE__, __LINE__, "errno: expected ECHILD, got %{#m}"); return ECHILD == errno ? 0 : 1; } static int test_process_kill_fail () { if (-1 == _rw_pid) { rw_info (0, 0, 0, "The test, exercising the rw_process_kill() behavior " "when invalid pid specified is disabled"); return 0; } rw_info (0, 0, 0, "Exercising the rw_process_kill() behavior " "when invalid pid specified"); // set to ignore rw_error diagnostic rw_enable (rw_error, false); const int res = rw_process_kill (_rw_pid); // enable rw_error diagnostic rw_enable (rw_error); rw_assert (-1 == res, __FILE__, __LINE__, "rw_process_kill returns %ld, expected -1", long (res)); if (-1 != res) return 1; rw_assert (ESRCH == errno, __FILE__, __LINE__, "errno: expected ESRCH, got %{#m}"); return ESRCH == errno ? 0 : 1; } static int run_test (int argc, char** argv) { if (_rw_child) { rw_info (0, 0, 0, "The child process: _rw_child = %i", _rw_child); if (2 == _rw_child) { // simulate the deadlock while (true) ; } // compare number of parameters with expected if (nargs != argc) return nargs; // compare the parameters with expected for (int i = 1; i < argc; ++i) { if (0 != strcmp (argv [i], args [i])) return i; } return 0; } args [0] = argv [0]; int fails = 0; if (test_process_create1 ()) ++fails; if (test_process_create2 ()) ++fails; if (test_process_deadlocked ()) ++fails; if (test_process_create_fail ()) ++fails; if (test_waitpid_fail ()) ++fails; if (test_process_kill_fail ()) ++fails; return fails; } int main (int argc, char *argv[]) { return rw_test (argc, argv, __FILE__, "0.process", "", run_test, "|-child#0 " "|-timeout#", &_rw_child, &_rw_timeout, 0 /*sentinel*/); }