/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
*
- * uTest
+ * libtest
*
* Copyright (C) 2011 Data Differential, http://datadifferential.com/
*
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
+ * This library is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU Lesser General Public
+ * License as published by the Free Software Foundation; either
+ * version 3 of the License, or (at your option) any later version.
*
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *
- * * The names of its contributors may not be used to endorse or
- * promote products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ * This library is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ * Lesser General Public License for more details.
*
+ * You should have received a copy of the GNU Lesser General Public
+ * License along with this library; if not, write to the Free Software
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*/
+
#include <config.h>
+#include <libtest/common.h>
-#include <cerrno>
#include <cstdlib>
#include <cstring>
#include <iostream>
+#include <sstream>
+#include <signal.h>
+#include <sys/types.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
#include <libtest/killpid.h>
+#include <libtest/stream.h>
+
+using namespace libtest;
bool kill_pid(pid_t pid_arg)
{
- if ((kill(pid_arg, SIGTERM) == -1))
+ assert(pid_arg > 0);
+ if (pid_arg < 1)
+ {
+ Error << "Invalid pid:" << pid_arg;
+ return false;
+ }
+
+ if ((::kill(pid_arg, SIGTERM) == -1))
{
switch (errno)
{
case EPERM:
- perror(__func__);
- std::cerr << __func__ << " -> Does someone else have a process running locally for " << int(pid_arg) << "?" << std::endl;
+ Error << "Does someone else have a process running locally for " << int(pid_arg) << "?";
return false;
case ESRCH:
- perror(__func__);
- std::cerr << "Process " << int(pid_arg) << " not found." << std::endl;
+ Error << "Process " << int(pid_arg) << " not found.";
return false;
default:
case EINVAL:
- perror(__func__);
+ Error << "kill() " << strerror(errno);
return false;
}
}
int status= 0;
- pid_t pid= waitpid(pid_arg, &status, 0);
- if (pid == -1)
+ if (waitpid(pid_arg, &status, 0) == -1)
{
switch (errno)
{
+ // Just means that the server has already gone away
case ECHILD:
- return true;
+ {
+ return true;
+ }
}
- std::cerr << std::endl << "Error occured while waitpid(" << strerror(errno) << ") on pid " << int(pid_arg) << std::endl;
+
+ Error << "Error occured while waitpid(" << strerror(errno) << ") on pid " << int(pid_arg);
+
return false;
}
- if (WIFEXITED(status))
- return true;
+ return true;
+}
- if (WCOREDUMP(status))
- return true;
+bool check_pid(const std::string &filename)
+{
+ if (filename.empty())
+ {
+ return false;
+ }
+
+ FILE *fp;
+ if ((fp= fopen(filename.c_str(), "r")))
+ {
+ char pid_buffer[1024];
+
+ char *ptr= fgets(pid_buffer, sizeof(pid_buffer), fp);
+ fclose(fp);
+ if (ptr)
+ {
+ pid_t pid= (pid_t)atoi(pid_buffer);
+ if (pid > 0)
+ {
+ return (::kill(pid, 0) == 0);
+ }
+ }
+ }
+
return false;
}
-void kill_file(const std::string &filename)
+bool kill_file(const std::string &filename)
{
- FILE *fp;
-
if (filename.empty())
- return;
+ {
+ return true;
+ }
+ FILE *fp;
if ((fp= fopen(filename.c_str(), "r")))
{
char pid_buffer[1024];
pid_t pid= (pid_t)atoi(pid_buffer);
if (pid != 0)
{
- kill_pid(pid);
+ bool ret= kill_pid(pid);
unlink(filename.c_str()); // If this happens we may be dealing with a dead server that left its pid file.
+
+ return ret;
+ }
+ }
+ }
+
+ return false;
+}
+
+#define STRINGIFY(x) #x
+#define TOSTRING(x) STRINGIFY(x)
+#define LIBTEST_AT __FILE__ ":" TOSTRING(__LINE__)
+
+pid_t get_pid_from_file(const std::string &filename, std::stringstream& error_message)
+{
+ pid_t ret= -1;
+ FILE *fp;
+
+ if (filename.empty())
+ {
+ error_message << LIBTEST_AT << " empty pid file";
+ return ret;
+ }
+
+ if ((fp= fopen(filename.c_str(), "r")))
+ {
+ char pid_buffer[1024];
+
+ char *ptr= fgets(pid_buffer, sizeof(pid_buffer), fp);
+ fclose(fp);
+
+ if (ptr)
+ {
+ ret= (pid_t)atoi(pid_buffer);
+ if (ret < 1)
+ {
+ error_message << LIBTEST_AT << " Invalid pid was read from file " << filename;
}
}
+ else
+ {
+ error_message << LIBTEST_AT << " File " << filename << " was empty ";
+ }
+
+ return ret;
+ }
+ else
+ {
+ char buffer[1024];
+ char *current_directory= getcwd(buffer, sizeof(buffer));
+ error_message << "Error while opening " << current_directory << "/" << filename << " " << strerror(errno);
}
+
+ return ret;
}