launch.h revision c5cede9ae108bb15f6b7a8aea21c7e1fefa2834c
15d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Copyright 2013 The Chromium Authors. All rights reserved. 29ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Use of this source code is governed by a BSD-style license that can be 39ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// found in the LICENSE file. 49ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 59ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// This file contains functions for launching subprocesses. 69ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 79ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#ifndef BASE_PROCESS_LAUNCH_H_ 89ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#define BASE_PROCESS_LAUNCH_H_ 99ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 109ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include <string> 119ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include <utility> 129ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include <vector> 139ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 149ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include "base/base_export.h" 159ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include "base/basictypes.h" 1658537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)#include "base/environment.h" 179ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include "base/process/process_handle.h" 18a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#include "base/strings/string_piece.h" 199ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 209ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#if defined(OS_POSIX) 219ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include "base/posix/file_descriptor_shuffle.h" 229ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#elif defined(OS_WIN) 239ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#include <windows.h> 24f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles)#include "base/win/scoped_handle.h" 259ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif 269ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 279ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdochnamespace base { 289ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 29a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles)class CommandLine; 30a1401311d1ab56c4ed0a474bd38c108f75cb0cd9Torne (Richard Coles) 315d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#if defined(OS_WIN) 325d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)typedef std::vector<HANDLE> HandlesToInheritVector; 335d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)#endif 345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// TODO(viettrungluu): Only define this on POSIX? 359ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdochtypedef std::vector<std::pair<int, int> > FileHandleMappingVector; 369ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 379ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Options for launching a subprocess that are passed to LaunchProcess(). 389ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// The default constructor constructs the object with default options. 3958537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles)struct BASE_EXPORT LaunchOptions { 4058537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) LaunchOptions(); 4158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) ~LaunchOptions(); 429ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 439ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // If true, wait for the process to complete. 449ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch bool wait; 459ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 469ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#if defined(OS_WIN) 479ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch bool start_hidden; 489ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 495d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // If non-null, inherit exactly the list of handles in this vector (these 505d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // handles must be inheritable). This is only supported on Vista and higher. 515d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) HandlesToInheritVector* handles_to_inherit; 525d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 539ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // If true, the new process inherits handles from the parent. In production 549ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // code this flag should be used only when running short-lived, trusted 559ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // binaries, because open handles from other libraries and subsystems will 569ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // leak to the child process, causing errors such as open socket hangs. 575d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // Note: If |handles_to_inherit| is non-null, this flag is ignored and only 585d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // those handles will be inherited (on Vista and higher). 599ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch bool inherit_handles; 609ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 615d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // If non-null, runs as if the user represented by the token had launched it. 629ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // Whether the application is visible on the interactive desktop depends on 639ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // the token belonging to an interactive logon session. 649ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // 659ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // To avoid hard to diagnose problems, when specified this loads the 669ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // environment variables associated with the user and if this operation fails 679ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // the entire call fails as well. 689ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch UserTokenHandle as_user; 699ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 709ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // If true, use an empty string for the desktop name. 719ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch bool empty_desktop_name; 729ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // If non-null, launches the application in that job object. The process will 749ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // be terminated immediately and LaunchProcess() will fail if assignment to 759ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // the job object fails. 769ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch HANDLE job_handle; 779ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 789ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // Handles for the redirection of stdin, stdout and stderr. The handles must 799ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // be inheritable. Caller should either set all three of them or none (i.e. 809ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // there is no way to redirect stderr without redirecting stdin). The 819ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // |inherit_handles| flag must be set to true when redirecting stdio stream. 829ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch HANDLE stdin_handle; 839ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch HANDLE stdout_handle; 849ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch HANDLE stderr_handle; 859ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 869ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // If set to true, ensures that the child process is launched with the 879ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // CREATE_BREAKAWAY_FROM_JOB flag which allows it to breakout of the parent 889ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // job if any. 899ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch bool force_breakaway_from_job_; 909ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#else 9158537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // Set/unset environment variables. Empty (the default) means to inherit 9258537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) // the same environment. See AlterEnvironment(). 9358537e28ecd584eab876aee8be7156509866d23aTorne (Richard Coles) EnvironmentMap environ; 949ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 955d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) // If non-null, remap file descriptors according to the mapping of 969ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // src fd->dest fd to propagate FDs into the child process. 979ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // This pointer is owned by the caller and must live through the 989ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // call to LaunchProcess(). 999ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch const FileHandleMappingVector* fds_to_remap; 1009ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1019ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // Each element is an RLIMIT_* constant that should be raised to its 1029ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // rlim_max. This pointer is owned by the caller and must live through 1039ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // the call to LaunchProcess(). 1045d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const std::vector<int>* maximize_rlimits; 1059ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1069ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // If true, start the process in a new process group, instead of 1079ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // inheriting the parent's process group. The pgid of the child process 1089ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // will be the same as its pid. 1099ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch bool new_process_group; 1109ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1119ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#if defined(OS_LINUX) 1129ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // If non-zero, start the process using clone(), using flags as provided. 1139ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch int clone_flags; 114c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch 115c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch // By default, child processes will have the PR_SET_NO_NEW_PRIVS bit set. If 116c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch // true, then this bit will not be set in the new child process. 117c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch bool allow_new_privs; 1189ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif // defined(OS_LINUX) 1199ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1209ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#if defined(OS_CHROMEOS) 1219ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // If non-negative, the specified file descriptor will be set as the launched 1229ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch // process' controlling terminal. 1239ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch int ctrl_terminal_fd; 1249ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif // defined(OS_CHROMEOS) 1259ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1269ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif // !defined(OS_WIN) 1279ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch}; 1289ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1299ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Launch a process via the command line |cmdline|. 1309ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// See the documentation of LaunchOptions for details on |options|. 1319ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// 1329ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Returns true upon success. 1339ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// 1345d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Upon success, if |process_handle| is non-null, it will be filled in with the 1359ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// handle of the launched process. NOTE: In this case, the caller is 1369ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// responsible for closing the handle so that it doesn't leak! 1379ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Otherwise, the process handle will be implicitly closed. 1389ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// 1399ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Unix-specific notes: 1409ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// - All file descriptors open in the parent process will be closed in the 1419ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// child process except for any preserved by options::fds_to_remap, and 1429ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// stdin, stdout, and stderr. If not remapped by options::fds_to_remap, 1439ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// stdin is reopened as /dev/null, and the child is allowed to inherit its 1449ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// parent's stdout and stderr. 1459ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// - If the first argument on the command line does not contain a slash, 1469ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// PATH will be searched. (See man execvp.) 1479ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT bool LaunchProcess(const CommandLine& cmdline, 1489ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch const LaunchOptions& options, 1499ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch ProcessHandle* process_handle); 1509ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1519ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#if defined(OS_WIN) 1529ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Windows-specific LaunchProcess that takes the command line as a 1539ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// string. Useful for situations where you need to control the 1549ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// command line arguments directly, but prefer the CommandLine version 1559ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// if launching Chrome itself. 1569ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// 1579ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// The first command line argument should be the path to the process, 1589ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// and don't forget to quote it. 1599ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// 1609ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Example (including literal quotes) 1619ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// cmdline = "c:\windows\explorer.exe" -foo "c:\bar\" 1629ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT bool LaunchProcess(const string16& cmdline, 1639ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch const LaunchOptions& options, 164f2477e01787aa58f445919b809d89e252beef54fTorne (Richard Coles) win::ScopedHandle* process_handle); 1659ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1665d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// Launches a process with elevated privileges. This does not behave exactly 1675d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// like LaunchProcess as it uses ShellExecuteEx instead of CreateProcess to 1685d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// create the process. This means the process will have elevated privileges 1695d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// and thus some common operations like OpenProcess will fail. The process will 1705d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// be available through the |process_handle| argument. Currently the only 1715d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)// supported LaunchOptions are |start_hidden| and |wait|. 1725d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles)BASE_EXPORT bool LaunchElevatedProcess(const CommandLine& cmdline, 1735d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) const LaunchOptions& options, 1745d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) ProcessHandle* process_handle); 1755d1f7b1de12d16ceb2c938c56701a3e8bfa558f7Torne (Richard Coles) 1769ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#elif defined(OS_POSIX) 1779ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// A POSIX-specific version of LaunchProcess that takes an argv array 1789ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// instead of a CommandLine. Useful for situations where you need to 1799ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// control the command line arguments directly, but prefer the 1809ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// CommandLine version if launching Chrome itself. 1819ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT bool LaunchProcess(const std::vector<std::string>& argv, 1829ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch const LaunchOptions& options, 1839ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch ProcessHandle* process_handle); 1849ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1859ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Close all file descriptors, except those which are a destination in the 1869ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// given multimap. Only call this function in a child process where you know 1879ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// that there aren't any other threads. 1889ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT void CloseSuperfluousFds(const InjectiveMultimap& saved_map); 1899ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif // defined(OS_POSIX) 1909ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1919ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#if defined(OS_WIN) 192d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)// Set |job_object|'s JOBOBJECT_EXTENDED_LIMIT_INFORMATION 193d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)// BasicLimitInformation.LimitFlags to |limit_flags|. 194d0247b1b59f9c528cb6df88b4f2b9afaf80d181eTorne (Richard Coles)BASE_EXPORT bool SetJobObjectLimitFlags(HANDLE job_object, DWORD limit_flags); 1959ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 1969ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Output multi-process printf, cout, cerr, etc to the cmd.exe console that ran 1979ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// chrome. This is not thread-safe: only call from main thread. 1989ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT void RouteStdioToConsole(); 1999ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif // defined(OS_WIN) 2009ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 2019ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Executes the application specified by |cl| and wait for it to exit. Stores 2029ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// the output (stdout) in |output|. Redirects stderr to /dev/null. Returns true 2039ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// on success (application launched and exited cleanly, with exit code 2049ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// indicating success). 2059ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT bool GetAppOutput(const CommandLine& cl, std::string* output); 2069ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 207a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#if defined(OS_WIN) 208a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// A Windows-specific version of GetAppOutput that takes a command line string 209a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// instead of a CommandLine object. Useful for situations where you need to 210a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)// control the command line arguments directly. 211a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)BASE_EXPORT bool GetAppOutput(const StringPiece16& cl, std::string* output); 212a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles)#endif 213a3f6a49ab37290eeeb8db0f41ec0f1cb74a68be7Torne (Richard Coles) 2149ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#if defined(OS_POSIX) 2159ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// A POSIX-specific version of GetAppOutput that takes an argv array 2169ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// instead of a CommandLine. Useful for situations where you need to 2179ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// control the command line arguments directly. 2189ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT bool GetAppOutput(const std::vector<std::string>& argv, 2199ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch std::string* output); 2209ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 2219ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// A restricted version of |GetAppOutput()| which (a) clears the environment, 2229ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// and (b) stores at most |max_output| bytes; also, it doesn't search the path 2239ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// for the command. 2249ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT bool GetAppOutputRestricted(const CommandLine& cl, 2259ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch std::string* output, size_t max_output); 2269ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 2279ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// A version of |GetAppOutput()| which also returns the exit code of the 2289ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// executed command. Returns true if the application runs and exits cleanly. If 2299ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// this is the case the exit code of the application is available in 2309ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// |*exit_code|. 2319ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT bool GetAppOutputWithExitCode(const CommandLine& cl, 2329ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch std::string* output, int* exit_code); 2339ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif // defined(OS_POSIX) 2349ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 2359ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// If supported on the platform, and the user has sufficent rights, increase 2369ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// the current process's scheduling priority to a high priority. 2379ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben MurdochBASE_EXPORT void RaiseProcessToHighPriority(); 2389ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 2399ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#if defined(OS_MACOSX) 2409ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// Restore the default exception handler, setting it to Apple Crash Reporter 2419ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// (ReportCrash). When forking and execing a new process, the child will 2429ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// inherit the parent's exception ports, which may be set to the Breakpad 2439ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// instance running inside the parent. The parent's Breakpad instance should 2449ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// not handle the child's exceptions. Calling RestoreDefaultExceptionHandler 2459ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// in the child after forking will restore the standard exception handler. 2469ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch// See http://crbug.com/20371/ for more details. 2479ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdochvoid RestoreDefaultExceptionHandler(); 2489ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif // defined(OS_MACOSX) 2499ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 250c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch// Creates a LaunchOptions object suitable for launching processes in a test 251c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch// binary. This should not be called in production/released code. 252c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen MurdochBASE_EXPORT LaunchOptions LaunchOptionsForTest(); 253c5cede9ae108bb15f6b7a8aea21c7e1fefa2834cBen Murdoch 2549ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch} // namespace base 2559ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch 2569ab5563a3196760eb381d102cbb2bc0f7abc6a50Ben Murdoch#endif // BASE_PROCESS_LAUNCH_H_ 257