/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
- *
- * uTest
*
- * Copyright (C) 2011 Data Differential, http://datadifferential.com/
+ * Data Differential YATL (i.e. libtest) library
+ *
+ * Copyright (C) 2012 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
*
*/
-#include <config.h>
+#include "libtest/yatlcon.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 (pid_arg <= 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)
{
- switch (errno)
+ uint32_t this_wait= 0;
+ uint32_t timeout= 20; // This number should be high enough for valgrind startup (which is slow)
+ uint32_t waited;
+ uint32_t retry;
+
+ for (waited= 0, retry= 1; ; retry++, waited+= this_wait)
{
- case ECHILD:
- return true;
+ int status= 0;
+ if (waitpid(pid_arg, &status, WNOHANG) == 0)
+ {
+ break;
+ }
+ else if (errno == ECHILD)
+ {
+ // Server has already gone away
+ break;
+ }
+ else if (waited >= timeout)
+ {
+ // Timeout failed
+ kill(pid_arg, SIGKILL);
+ break;
+ }
+
+ this_wait= retry * retry / 3 + 1;
+ libtest::dream(this_wait, 0);
}
- std::cerr << std::endl << "Error occured while waitpid(" << strerror(errno) << ") on pid " << int(pid_arg) << std::endl;
+ }
+
+ return true;
+}
+
+bool check_pid(const std::string &filename)
+{
+ if (filename.empty())
+ {
return false;
}
- if (WIFEXITED(status))
- return true;
+ FILE *fp;
+ if ((fp= fopen(filename.c_str(), "r")))
+ {
+ libtest::vchar_t pid_buffer;
+ pid_buffer.resize(1024);
- if (WCOREDUMP(status))
- return true;
+ char *ptr= fgets(&pid_buffer[0], int(pid_buffer.size()), fp);
+ fclose(fp);
+ if (ptr)
+ {
+ pid_t pid= (pid_t)atoi(&pid_buffer[0]);
+ 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];
+ libtest::vchar_t pid_buffer;
+ pid_buffer.resize(1024);
- char *ptr= fgets(pid_buffer, sizeof(pid_buffer), fp);
+ char *ptr= fgets(&pid_buffer[0], int(pid_buffer.size()), fp);
fclose(fp);
if (ptr)
{
- pid_t pid= (pid_t)atoi(pid_buffer);
+ pid_t pid= (pid_t)atoi(&pid_buffer[0]);
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;
+
+ if (filename.empty())
+ {
+ error_message << LIBTEST_AT << " empty pid file";
+ return ret;
+ }
+
+ FILE *fp;
+ if ((fp= fopen(filename.c_str(), "r")))
+ {
+ libtest::vchar_t pid_buffer;
+ pid_buffer.resize(1024);
+
+ char *ptr= fgets(&pid_buffer[0], int(pid_buffer.size()), fp);
+ if (ptr)
+ {
+ ret= (pid_t)atoi(&pid_buffer[0]);
+ if (ret < 1)
+ {
+ error_message << LIBTEST_AT << " Invalid pid was read from file " << filename;
+ }
+ }
+ else
+ {
+ error_message << LIBTEST_AT << " File " << filename << " was empty ";
+ }
+
+ fclose(fp);
+
+ return ret;
+ }
+ else
+ {
+ libtest::vchar_t buffer;
+ buffer.resize(1024);
+ char *current_directory= getcwd(&buffer[0], buffer.size());
+ error_message << "Error while opening " << current_directory << "/" << filename << " " << strerror(errno);
+ }
+
+ return ret;
}