text: /*
     +----------------------------------------------------------------------+
     | HipHop for PHP                                                       |
     +----------------------------------------------------------------------+
     | Copyright (c) 2010-2013 Facebook, Inc. (http://www.facebook.com)     |
     | Copyright (c) 1997-2010 The PHP Group                                |
     +----------------------------------------------------------------------+
     | This source file is subject to version 3.01 of the PHP license,      |
     | that is bundled with this package in the file LICENSE, and is        |
     | available through the world-wide-web at the following url:           |
     | http://www.php.net/license/3_01.txt                                  |
     | If you did not receive a copy of the PHP license and are unable to   |
     | obtain it through the world-wide-web, please send a note to          |
     | license@php.net so we can mail you a copy immediately.               |
     +----------------------------------------------------------------------+
  */
  
  #ifndef incl_HPHP_EXT_PROCESS_H_
  #define incl_HPHP_EXT_PROCESS_H_
  
  #include "hphp/runtime/base/base-includes.h"
  #include <sys/wait.h>
  
  namespace HPHP {
  ///////////////////////////////////////////////////////////////////////////////
  
  int64_t f_pcntl_alarm(int seconds);
  void f_pcntl_exec(CStrRef path, CArrRef args = null_array, CArrRef envs = null_array);
  
  int64_t f_pcntl_fork();
  Variant f_pcntl_getpriority(int pid = 0, int process_identifier = 0);
  bool f_pcntl_setpriority(int priority, int pid = 0,
                           int process_identifier = 0);
  
  bool f_pcntl_signal(int signo, CVarRef handler, bool restart_syscalls = true);
  int64_t f_pcntl_wait(VRefParam status, int options = 0);
  int64_t f_pcntl_waitpid(int pid, VRefParam status, int options = 0);
  
  int64_t f_pcntl_wexitstatus(int status);
  
  /**
   * Process pending signals flagged earlier.
   */
  bool f_pcntl_signal_dispatch();
  
  // status querying
  bool f_pcntl_wifexited(int status);
  bool f_pcntl_wifsignaled(int status);
  bool f_pcntl_wifstopped(int status);
  int64_t f_pcntl_wstopsig(int status);
  int64_t f_pcntl_wtermsig(int status);
  
  ///////////////////////////////////////////////////////////////////////////////
  
  String f_shell_exec(CStrRef cmd);
  String f_exec(CStrRef command, VRefParam output = uninit_null(),
                VRefParam return_var = uninit_null());
  void f_passthru(CStrRef command, VRefParam return_var = uninit_null());
  String f_system(CStrRef command, VRefParam return_var = uninit_null());
  
  ///////////////////////////////////////////////////////////////////////////////
  
  Variant f_proc_open(CStrRef cmd, CArrRef descriptorspec, VRefParam pipes,
                      CStrRef cwd = null_string, CVarRef env = null_variant,
                      CVarRef other_options = null_variant);
  bool f_proc_terminate(CResRef process, int signal = 0);
  int64_t f_proc_close(CResRef process);
  Array f_proc_get_status(CResRef process);
  bool f_proc_nice(int increment);
  
  ///////////////////////////////////////////////////////////////////////////////
  
  String f_escapeshellarg(CStrRef arg);
  String f_escapeshellcmd(CStrRef command);
  
  ///////////////////////////////////////////////////////////////////////////////
  }
  
  #endif // incl_HPHP_EXT_PROCESS_H_
  