<commit_before>/* Copyright (C) 2004 MySQL AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#if defined(__GNUC__) && defined(USE_PRAGMA_IMPLEMENTATION)
#pragma implementation
#endif

#include "instance.h"

#include "mysql_manager_error.h"
#include "log.h"
#include "instance_map.h"
#include "priv.h"
#include "portability.h"
#ifndef __WIN__
#include <sys/wait.h>
#endif
#include <my_sys.h>
#include <signal.h>
#include <m_string.h>
#include <mysql.h>


static void start_and_monitor_instance(Instance_options *old_instance_options,
                                       Instance_map *instance_map);

#ifndef __WIN__
typedef pid_t My_process_info;
#else
typedef PROCESS_INFORMATION My_process_info;
#endif

/*
  Proxy thread is a simple way to avoid all pitfalls of the threads
  implementation in the OS (e.g. LinuxThreads). With such a thread we
  don't have to process SIGCHLD, which is a tricky business if we want
  to do it in a portable way.
*/

pthread_handler_t proxy(void *arg)
{
  Instance *instance= (Instance *) arg;
  start_and_monitor_instance(&instance->options,
                             instance->get_map());
  return 0;
}

/*
  Wait for an instance

  SYNOPSYS
    wait_process()
    pi                   Pointer to the process information structure
                         (platform-dependent).

  RETURN
   0  -  Success
   1  -  Error
*/

#ifndef __WIN__
static int wait_process(My_process_info *pi)
{
  /*
    Here we wait for the child created. This process differs for systems
    running LinuxThreads and POSIX Threads compliant systems. This is because
    according to POSIX we could wait() for a child in any thread of the
    process. While LinuxThreads require that wait() is called by the thread,
    which created the child.
    On the other hand we could not expect mysqld to return the pid, we
    got in from fork(), to wait4() fucntion when running on LinuxThreads.
    This is because MySQL shutdown thread is not the one, which was created
    by our fork() call.
    So basically we have two options: whether the wait() call returns only in
    the creator thread, but we cannot use waitpid() since we have no idea
    which pid we should wait for (in fact it should be the pid of shutdown
    thread, but we don't know this one). Or we could use waitpid(), but
    couldn't use wait(), because it could return in any wait() in the program.
  */
  if (linuxthreads)
    wait(NULL);                               /* LinuxThreads were detected */
  else
    waitpid(*pi, NULL, 0);

  return 0;
}
#else
static int wait_process(My_process_info *pi)
{
  /* Wait until child process exits. */
  WaitForSingleObject(pi->hProcess, INFINITE);

  DWORD exitcode;
  ::GetExitCodeProcess(pi->hProcess, &exitcode);

  /* Close process and thread handles. */
  CloseHandle(pi->hProcess);
  CloseHandle(pi->hThread);

  /*
    GetExitCodeProces returns zero on failure. We should revert this value
    to report an error.
  */
  return (!exitcode);
}
#endif


/*
  Launch an instance

  SYNOPSYS
    start_process()
    instance_options     Pointer to the options of the instance to be
                         launched.
    pi                   Pointer to the process information structure
                         (platform-dependent).

  RETURN
   0  -  Success
   1  -  Cannot create an instance
*/

#ifndef __WIN__
static int start_process(Instance_options *instance_options,
                         My_process_info *pi)
{
  *pi= fork();

  switch (*pi) {
  case 0:
    execv(instance_options->mysqld_path, instance_options->argv);
    /* exec never returns */
    exit(1);
  case 1:
    log_info("cannot fork() to start instance %s",
             instance_options->instance_name);
    return 1;
  }
  return 0;
}
#else
static int start_process(Instance_options *instance_options,
                         My_process_info *pi)
{
  STARTUPINFO si;

  ZeroMemory(&si, sizeof(STARTUPINFO));
  si.cb= sizeof(STARTUPINFO);
  ZeroMemory(pi, sizeof(PROCESS_INFORMATION));

  int cmdlen= 0;
  for (int i= 0; instance_options->argv[i] != 0; i++)
    cmdlen+= strlen(instance_options->argv[i]) + 3;
  cmdlen++;   /* make room for the null */

  char *cmdline= new char[cmdlen];
  if (cmdline == NULL)
    return 1;

  for (int i= 0; instance_options->argv[i] != 0; i++)
  {
    strcat(cmdline, "\"");
    strcat(cmdline, instance_options->argv[i]);
    strcat(cmdline, "\" ");<commit_msg>Fix Bug#14107 (IM test failures on QNX) (v.2 with post-review fixes)<commit_after>/* Copyright (C) 2004 MySQL AB

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 2 of the License, or
   (at your option) any later version.

   This program 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 General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#if defined(__GNUC__) && defined(USE_PRAGMA_IMPLEMENTATION)
#pragma implementation
#endif

#include "instance.h"

#include "mysql_manager_error.h"
#include "log.h"
#include "instance_map.h"
#include "priv.h"
#include "portability.h"
#ifndef __WIN__
#include <sys/wait.h>
#endif
#include <my_sys.h>
#include <signal.h>
#include <m_string.h>
#include <mysql.h>


static void start_and_monitor_instance(Instance_options *old_instance_options,
                                       Instance_map *instance_map);

#ifndef __WIN__
typedef pid_t My_process_info;
#else
typedef PROCESS_INFORMATION My_process_info;
#endif

/*
  Proxy thread is a simple way to avoid all pitfalls of the threads
  implementation in the OS (e.g. LinuxThreads). With such a thread we
  don't have to process SIGCHLD, which is a tricky business if we want
  to do it in a portable way.
*/

pthread_handler_t proxy(void *arg)
{
  Instance *instance= (Instance *) arg;
  start_and_monitor_instance(&instance->options,
                             instance->get_map());
  return 0;
}

/*
  Wait for an instance

  SYNOPSYS
    wait_process()
    pi                   Pointer to the process information structure
                         (platform-dependent).

  RETURN
   0  -  Success
   1  -  Error
*/

#ifndef __WIN__
static int wait_process(My_process_info *pi)
{
  /*
    Here we wait for the child created. This process differs for systems
    running LinuxThreads and POSIX Threads compliant systems. This is because
    according to POSIX we could wait() for a child in any thread of the
    process. While LinuxThreads require that wait() is called by the thread,
    which created the child.
    On the other hand we could not expect mysqld to return the pid, we
    got in from fork(), to wait4() fucntion when running on LinuxThreads.
    This is because MySQL shutdown thread is not the one, which was created
    by our fork() call.
    So basically we have two options: whether the wait() call returns only in
    the creator thread, but we cannot use waitpid() since we have no idea
    which pid we should wait for (in fact it should be the pid of shutdown
    thread, but we don't know this one). Or we could use waitpid(), but
    couldn't use wait(), because it could return in any wait() in the program.
  */
  if (linuxthreads)
    wait(NULL);                               /* LinuxThreads were detected */
  else
    waitpid(*pi, NULL, 0);

  return 0;
}
#else
static int wait_process(My_process_info *pi)
{
  /* Wait until child process exits. */
  WaitForSingleObject(pi->hProcess, INFINITE);

  DWORD exitcode;
  ::GetExitCodeProcess(pi->hProcess, &exitcode);

  /* Close process and thread handles. */
  CloseHandle(pi->hProcess);
  CloseHandle(pi->hThread);

  /*
    GetExitCodeProces returns zero on failure. We should revert this value
    to report an error.
  */
  return (!exitcode);
}
#endif


/*
  Launch an instance

  SYNOPSYS
    start_process()
    instance_options     Pointer to the options of the instance to be
                         launched.
    pi                   Pointer to the process information structure
                         (platform-dependent).

  RETURN
   0  -  Success
   1  -  Cannot create an instance
*/

#ifndef __WIN__
static int start_process(Instance_options *instance_options,
                         My_process_info *pi)
{
#ifndef __QNX__
  *pi= fork();
#else
  /*
     On QNX one cannot use fork() in multithreaded environment and we
     should use spawn() or one of it's siblings instead.
     Here we use spawnv(), which  is a combination of fork() and execv()
     in one call. It returns the pid of newly created process (>0) or -1
  */
  *pi= spawnv(P_NOWAIT, instance_options->mysqld_path, instance_options->argv);
#endif

  switch (*pi) {
  case 0:                                       /* never happens on QNX */
    execv(instance_options->mysqld_path, instance_options->argv);
    /* exec never returns */
    exit(1);
  case -1:
    log_info("cannot create a new process to start instance %s",
             instance_options->instance_name);
    return 1;
  }
  return 0;
}
#else
static int start_process(Instance_options *instance_options,
                         My_process_info *pi)
{
  STARTUPINFO si;

  ZeroMemory(&si, sizeof(STARTUPINFO));
  si.cb= sizeof(STARTUPINFO);
  ZeroMemory(pi, sizeof(PROCESS_INFORMATION));

  int cmdlen= 0;
  for (int i= 0; instance_options->argv[i] != 0; i++)
    cmdlen+= strlen(instance_options->argv[i]) + 3;
  cmdlen++;   /* make room for the null */

  char *cmdline= new char[cmdlen];
  if (cmdline == NULL)
    return 1;

  for (int i= 0; instance_options->argv[i] != 0; i++)
  {
    strcat(cmdline, "\"");
    strcat(cmdline, instance_options->argv[i]);
    strcat(cmdline, "\" ");
{'fraction_non_alphanumeric': 0.08476003367948358, 'fraction_numerical': 0.008045654411076807, 'mean_word_length': 2.9171857823378526, 'pattern_counts': {'":': 0, '<': 13, '<?xml version=': 0, '>': 42, 'https://': 0, 'lorem ipsum': 0, 'www.': 0, 'xml': 0}, 'pii_count': 0, 'substrings_counts': 0, 'word_list_counts': {'cursed_substrings.json': 6, 'profanity_word_list.json': 0, 'sexual_word_list.json': 0, 'zh_pornsignals.json': 0}}
{'dir': 'git-commits-cleaned', 'id': '5204827', 'n_tokens_mistral': 3243, 'n_tokens_neox': 3078, 'n_words': 1230}