// Generated by gmmproc 2.54.1 -- DO NOT MODIFY!
#ifndef _GLIBMM_SPAWN_H
#define _GLIBMM_SPAWN_H
/* Copyright (C) 2002 The gtkmm Development Team
*
* 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 2.1 of the License, or (at your option) any later version.
*
* 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, see <http://www.gnu.org/licenses/>.
*/
#include <glibmmconfig.h>
#include <glibmm/arrayhandle.h>
#include <glibmm/error.h>
#include <sigc++/sigc++.h>
#include <string>
namespace Glib
{
using Pid = GPid;
/** @addtogroup glibmmEnums glibmm Enums and Flags */
/**
* @var SpawnFlags SPAWN_DEFAULT
* No flags, default behaviour.
*
* @var SpawnFlags SPAWN_LEAVE_DESCRIPTORS_OPEN
* The parent's open file descriptors will
* be inherited by the child; otherwise all descriptors except stdin,
* stdout and stderr will be closed before calling exec() in the child.
*
* @var SpawnFlags SPAWN_DO_NOT_REAP_CHILD
* The child will not be automatically reaped;
* you must use g_child_watch_add() yourself (or call waitpid() or handle
* `SIGCHLD` yourself), or the child will become a zombie.
*
* @var SpawnFlags SPAWN_SEARCH_PATH
* `argv[0]` need not be an absolute path, it will be
* looked for in the user's `PATH`.
*
* @var SpawnFlags SPAWN_STDOUT_TO_DEV_NULL
* The child's standard output will be discarded,
* instead of going to the same location as the parent's standard output.
*
* @var SpawnFlags SPAWN_STDERR_TO_DEV_NULL
* The child's standard error will be discarded.
*
* @var SpawnFlags SPAWN_CHILD_INHERITS_STDIN
* The child will inherit the parent's standard
* input (by default, the child's standard input is attached to `/dev/null`).
*
* @var SpawnFlags SPAWN_FILE_AND_ARGV_ZERO
* The first element of `argv` is the file to
* execute, while the remaining elements are the actual argument vector
* to pass to the file. Normally g_spawn_async_with_pipes() uses `argv[0]`
* as the file to execute, and passes all of `argv` to the child.
*
* @var SpawnFlags SPAWN_SEARCH_PATH_FROM_ENVP
* If `argv[0]` is not an abolute path,
* it will be looked for in the `PATH` from the passed child environment.
* @newin{2,34}
*
* @var SpawnFlags SPAWN_CLOEXEC_PIPES
* Create all pipes with the `O_CLOEXEC` flag set.
* @newin{2,40}
*
* @enum SpawnFlags
*
* Flags passed to g_spawn_sync(), g_spawn_async() and g_spawn_async_with_pipes().
*
* @ingroup glibmmEnums
* @par Bitwise operators:
* <tt>%SpawnFlags operator|(SpawnFlags, SpawnFlags)</tt><br>
* <tt>%SpawnFlags operator&(SpawnFlags, SpawnFlags)</tt><br>
* <tt>%SpawnFlags operator^(SpawnFlags, SpawnFlags)</tt><br>
* <tt>%SpawnFlags operator~(SpawnFlags)</tt><br>
* <tt>%SpawnFlags& operator|=(SpawnFlags&, SpawnFlags)</tt><br>
* <tt>%SpawnFlags& operator&=(SpawnFlags&, SpawnFlags)</tt><br>
* <tt>%SpawnFlags& operator^=(SpawnFlags&, SpawnFlags)</tt><br>
*/
enum SpawnFlags
{
SPAWN_DEFAULT = 0x0,
SPAWN_LEAVE_DESCRIPTORS_OPEN = 1 << 0,
SPAWN_DO_NOT_REAP_CHILD = 1 << 1,
SPAWN_SEARCH_PATH = 1 << 2,
SPAWN_STDOUT_TO_DEV_NULL = 1 << 3,
SPAWN_STDERR_TO_DEV_NULL = 1 << 4,
SPAWN_CHILD_INHERITS_STDIN = 1 << 5,
SPAWN_FILE_AND_ARGV_ZERO = 1 << 6,
SPAWN_SEARCH_PATH_FROM_ENVP = 1 << 7,
SPAWN_CLOEXEC_PIPES = 1 << 8
};
/** @ingroup glibmmEnums */
inline SpawnFlags operator|(SpawnFlags lhs, SpawnFlags rhs)
{ return static_cast<SpawnFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs)); }
/** @ingroup glibmmEnums */
inline SpawnFlags operator&(SpawnFlags lhs, SpawnFlags rhs)
{ return static_cast<SpawnFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs)); }
/** @ingroup glibmmEnums */
inline SpawnFlags operator^(SpawnFlags lhs, SpawnFlags rhs)
{ return static_cast<SpawnFlags>(static_cast<unsigned>(lhs) ^ static_cast<unsigned>(rhs)); }
/** @ingroup glibmmEnums */
inline SpawnFlags operator~(SpawnFlags flags)
{ return static_cast<SpawnFlags>(~static_cast<unsigned>(flags)); }
/** @ingroup glibmmEnums */
inline SpawnFlags& operator|=(SpawnFlags& lhs, SpawnFlags rhs)
{ return (lhs = static_cast<SpawnFlags>(static_cast<unsigned>(lhs) | static_cast<unsigned>(rhs))); }
/** @ingroup glibmmEnums */
inline SpawnFlags& operator&=(SpawnFlags& lhs, SpawnFlags rhs)
{ return (lhs = static_cast<SpawnFlags>(static_cast<unsigned>(lhs) & static_cast<unsigned>(rhs))); }
/** @ingroup glibmmEnums */
inline SpawnFlags& operator^=(SpawnFlags& lhs, SpawnFlags rhs)
{ return (lhs = static_cast<SpawnFlags>(static_cast<unsigned>(lhs) ^ static_cast<unsigned>(rhs))); }
/** @defgroup Spawn Spawning Processes
* Process launching with fork()/exec().
* @{
*/
/** %Exception class for errors occuring when spawning processes.
*/
class SpawnError : public Glib::Error
{
public:
/** @var Code FORK
* Fork failed due to lack of memory.
*
* @var Code READ
* Read or select on pipes failed.
*
* @var Code CHDIR
* Changing to working directory failed.
*
* @var Code ACCES
* Execv() returned `EACCES`.
*
* @var Code PERM
* Execv() returned `EPERM`.
*
* @var Code TOO_BIG
* Execv() returned `E2BIG`.
*
* @var Code TOOBIG
* Deprecated alias for SPAWN_ERROR_TOO_BIG.
*
* @var Code NOEXEC
* Execv() returned `ENOEXEC`.
*
* @var Code NAMETOOLONG
* Execv() returned `ENAMETOOLONG`.
*
* @var Code NOENT
* Execv() returned `ENOENT`.
*
* @var Code NOMEM
* Execv() returned `ENOMEM`.
*
* @var Code NOTDIR
* Execv() returned `ENOTDIR`.
*
* @var Code LOOP
* Execv() returned `ELOOP`.
*
* @var Code TXTBUSY
* Execv() returned `ETXTBUSY`.
*
* @var Code IO
* Execv() returned `EIO`.
*
* @var Code NFILE
* Execv() returned `ENFILE`.
*
* @var Code MFILE
* Execv() returned `EMFILE`.
*
* @var Code INVAL
* Execv() returned `EINVAL`.
*
* @var Code ISDIR
* Execv() returned `EISDIR`.
*
* @var Code LIBBAD
* Execv() returned `ELIBBAD`.
*
* @var Code FAILED
* Some other fatal failure,
* `error->message` should explain.
*
* @enum Code
*
* %Error codes returned by spawning processes.
*/
enum Code
{
FORK,
READ,
CHDIR,
ACCES,
PERM,
TOO_BIG,
TOOBIG = TOO_BIG,
NOEXEC,
NAMETOOLONG,
NOENT,
NOMEM,
NOTDIR,
LOOP,
TXTBUSY,
IO,
NFILE,
MFILE,
INVAL,
ISDIR,
LIBBAD,
FAILED
};
SpawnError(Code error_code, const Glib::ustring& error_message);
explicit SpawnError(GError* gobject);
Code code() const;
#ifndef DOXYGEN_SHOULD_SKIP_THIS
private:
static void throw_func(GError* gobject);
friend void wrap_init(); // uses throw_func()
#endif //DOXYGEN_SHOULD_SKIP_THIS
};
/** For instance,<br>
* void on_child_setup();
*/
using SlotSpawnChildSetup = sigc::slot<void>;
/** Executes a child program asynchronously (your program will not
* block waiting for the child to exit). The child program is
* specified by the only argument that must be provided, @a argv.
* The first string in @a argv is of
* course the name of the program to execute. By default, the name of
* the program must be a full path; the PATH shell variable
* will only be searched if you pass the SPAWN_SEARCH_PATH flag.
*
* On Windows, note that all the string or string vector arguments to
* this function and the other spawn*() functions are in UTF-8, the
* GLib file name encoding. Unicode characters that are not part of
* the system codepage passed in these arguments will be correctly
* available in the spawned program only if it uses wide character API
* to retrieve its command line. For C programs built with Microsoft's
* tools it is enough to make the program have a wmain() instead of
* main(). wmain() has a wide character argument vector as parameter.
*
* At least currently, mingw doesn't support wmain(), so if you use
* mingw to develop the spawned program, it will have to call the
* undocumented function __wgetmainargs() to get the wide character
* argument vector and environment. See gspawn-win32-helper.c in the
* GLib sources or init.c in the mingw runtime sources for a prototype
* for that function. Alternatively, you can retrieve the Win32 system
* level wide character command line passed to the spawned program
* using the GetCommandLineW() function.
*
* On Windows the low-level child process creation API
* CreateProcess() doesn't use argument vectors,
* but a command line. The C runtime library's
* spawn*() family of functions (which
* spawn_async_with_pipes() eventually calls) paste the argument
* vector elements together into a command line, and the C runtime startup code
* does a corresponding reconstruction of an argument vector from the
* command line, to be passed to main(). Complications arise when you have
* argument vector elements that contain spaces of double quotes. The
* spawn*() functions don't do any quoting or
* escaping, but on the other hand the startup code does do unquoting
* and unescaping in order to enable receiving arguments with embedded
* spaces or double quotes. To work around this asymmetry,
* spawn_async_with_pipes() will do quoting and escaping on argument
* vector elements that need it before calling the C runtime
* spawn() function.
*
* @a envp is a lists of strings, where each string
* has the form KEY=VALUE. This will become
* the child's environment.
*
* @a flags should be the bitwise OR of any flags you want to affect the
* function's behaviour. The SPAWN_DO_NOT_REAP_CHILD flags means that
* the child will not automatically be reaped; you must use a
* ChildWatch source to be notified about the death of the child
* process. Eventually you must call spawn_close_pid() on the
* @a child_pid, in order to free resources which may be associated
* with the child process. (On Unix, using a ChildWatch source is
* equivalent to calling waitpid() or handling the SIGCHLD signal
* manually. On Windows, calling spawn_close_pid() is equivalent
* to calling CloseHandle() on the process handle returned in
* @a child_pid).
*
* PAWN_LEAVE_DESCRIPTORS_OPEN means that the parent's open file
* descriptors will be inherited by the child; otherwise all
* descriptors except stdin/stdout/stderr will be closed before
* calling exec() in the child. SPAWN_SEARCH_PATH
* means that argv[0] need not be an absolute path, it
* will be looked for in the user's PATH.
* SPAWN_STDOUT_TO_DEV_NULL means that the child's standard output will
* be discarded, instead of going to the same location as the parent's
* standard output. If you use this flag, @a standard_output must be nullptr.
* SPAWN_STDERR_TO_DEV_NULL means that the child's standard error
* will be discarded, instead of going to the same location as the parent's
* standard error. If you use this flag, @a standard_error must be nullptr.
* SPAWN_CHILD_INHERITS_STDIN means that the child will inherit the parent's
* standard input (by default, the child's standard input is attached to
* /dev/null). If you use this flag, @a standard_input must be nullptr.
* G_SPAWN_FILE_AND_ARGV_ZERO means that the first element of @a argv is
* the file to execute, while the remaining elements are the
* actual argument vector to pass to the file. Normally
* spawn_async_with_pipes() uses argv[0] as the file to execute, and
* passes all of @a argv to the child.
*
* @a child_setup is a callback slot. On POSIX
* platforms, the function is called in the child after GLib has
* performed all the setup it plans to perform (including creating
* pipes, closing file descriptors, etc.) but before calling
* exec(). That is, @a child_setup is called just
* before calling exec() in the child. Obviously
* actions taken in this function will only affect the child, not the
* parent. On Windows, there is no separate fork() and exec()
* functionality. Child processes are created and run with
* a single API call, CreateProcess(). @a child_setup is
* called in the parent process just before creating the child
* process. You should carefully consider what you do in @a child_setup
* if you intend your software to be portable to Windows.
*
* If non-nullptr, @a child_pid will on Unix be filled with the child's
* process ID. You can use the process ID to send signals to the
* child, or to use child_watch_add() (or waitpid()) if you specified the
* SPAWN_DO_NOT_REAP_CHILD flag. On Windows, @a child_pid will be
* filled with a handle to the child process only if you specified the
* SPAWN_DO_NOT_REAP_CHILD flag. You can then access the child
* process using the Win32 API, for example wait for its termination
* with the WaitFor*() functions, or examine its
* exit code with GetExitCodeProcess(). You should close the handle
* with CloseHandle() or spawn_close_pid() when you no longer need it.
*
* If non-nullptr, the @a standard_input, @a standard_output, @a standard_error
* locations will be filled with file descriptors for writing to the child's
* standard input or reading from its standard output or standard error.
* The caller of pawn_async_with_pipes() must close these file descriptors
* when they are no longer in use. If these parameters are nullptr, the corresponding
* pipe won't be created.
*
* If @a standard_input is nullptr, the child's standard input is attached to
* /dev/null unless SPAWN_CHILD_INHERITS_STDIN is set.
*
* If @a standard_error is nullptr, the child's standard error goes to the same
* location as the parent's standard error unless SPAWN_STDERR_TO_DEV_NULL
* is set.
*
* If @a standard_output is nullptr, the child's standard output goes to the same
* location as the parent's standard output unless SPAWN_STDOUT_TO_DEV_NULL
* is set.
*
* If @a child_pid is not nullptr and an error does not occur then the returned
* pid must be closed using spawn_close_pid().
*
* @note
* If you are writing a gtkmm application, and the program you
* are spawning is a graphical application, too, then you may
* want to use spawn_on_screen_with_pipes() instead to ensure that
* the spawned program opens its windows on the right screen.
*
* @param working_directory Child's current working directory, or an empty string to inherit the parent's, in the GLib file name encoding.
* @param argv Child's argument vector.
* @param envp Child's environment.
* @param flags Flags from SpawnFlags
* @param child_setup Slot to run in the child just before exec(), or an empty slot.
* @param child_pid Return location for child process ID, or nullptr.
* @param standard_input Return location for file descriptor to write to child's stdin, or nullptr.
* @param standard_output Return location for file descriptor to read child's stdout, or nullptr.
* @param standard_error Return location for file descriptor to read child's stderr, or nullptr.
*
* @throws SpawnError Errors are reported even if they occur in the child (for example if the
* executable in argv[0] is not found). Typically
* the message field of returned errors should be displayed
* to users. If an error occurs, @a child_pid, @a standard_input, @a standard_output,
* and @a standard_error will not be filled with valid values.
*/
void spawn_async_with_pipes(const std::string& working_directory,
const Glib::ArrayHandle<std::string>& argv,
const Glib::ArrayHandle<std::string>& envp,
SpawnFlags flags = SPAWN_DEFAULT,
const SlotSpawnChildSetup& child_setup = SlotSpawnChildSetup(),
Pid* child_pid = nullptr,
int* standard_input = nullptr,
int* standard_output = nullptr,
int* standard_error = nullptr);
/** Like the main spawn_async_with_pipes() method, but inheriting the parent's environment.
*
* @param working_directory Child's current working directory, or an empty string to inherit the parent's, in the GLib file name encoding.
* @param argv Child's argument vector.
* @param flags Flags from SpawnFlags
* @param child_setup Slot to run in the child just before exec(), or an empty slot.
* @param child_pid Return location for child process ID, or nullptr.
* @param standard_input Return location for file descriptor to write to child's stdin, or nullptr.
* @param standard_output Return location for file descriptor to read child's stdout, or nullptr.
* @param standard_error Return location for file descriptor to read child's stderr, or nullptr.
*
* @throws SpawnError Errors are reported even if they occur in the child (for example if the
* executable in argv[0] is not found). Typically
* the message field of returned errors should be displayed
* to users. If an error occurs, @a child_pid, @a standard_input, @a standard_output,
* and @a standard_error will not be filled with valid values.
*/
void spawn_async_with_pipes(const std::string& working_directory,
const Glib::ArrayHandle<std::string>& argv,
SpawnFlags flags = SPAWN_DEFAULT,
const SlotSpawnChildSetup& child_setup = SlotSpawnChildSetup(),
Pid* child_pid = nullptr,
int* standard_input = nullptr,
int* standard_output = nullptr,
int* standard_error = nullptr);
/** See spawn_async_with_pipes() for a full description. This function
* simply calls the spawn_async_with_pipes() without any pipes.
*
* @note
* If you are writing a GTK+ application, and the program you
* are spawning is a graphical application, too, then you may
* want to use gdk_spawn_on_screen() instead to ensure that
* the spawned program opens its windows on the right screen.
*
* @param working_directory Child's current working directory, or an empty string to inherit parent's.
* @param argv Child's argument vector.
* @param envp Child's environment.
* @param flags Flags from SpawnFlags.
* @param child_setup Slot to run in the child just before exec(), or an empty slot.
* @param child_pid Return location for child process ID, or nullptr
*
* @throws SpawnError Errors are reported even if they occur in the child (for example if the
* executable in argv[0] is not found). Typically
* the message field of returned errors should be displayed
* to users.
*/
void spawn_async(const std::string& working_directory,
const Glib::ArrayHandle<std::string>& argv,
const Glib::ArrayHandle<std::string>& envp,
SpawnFlags flags = SPAWN_DEFAULT,
const SlotSpawnChildSetup& child_setup = SlotSpawnChildSetup(),
Pid* child_pid = nullptr);
/** Like the main spawn_async() method, but inheriting the parent's environment.
*
* @param working_directory Child's current working directory, or an empty string to inherit parent's.
* @param argv Child's argument vector.
* @param flags Flags from SpawnFlags.
* @param child_setup Slot to run in the child just before exec(), or an empty slot.
* @param child_pid Return location for child process ID, or nullptr
*
* @throws SpawnError Errors are reported even if they occur in the child (for example if the
* executable in argv[0] is not found). Typically
* the message field of returned errors should be displayed
* to users.
*/
void spawn_async(const std::string& working_directory,
const Glib::ArrayHandle<std::string>& argv,
SpawnFlags flags = SPAWN_DEFAULT,
const SlotSpawnChildSetup& child_setup = SlotSpawnChildSetup(),
Pid* child_pid = nullptr);
/** Executes a child synchronously (waits for the child to exit before returning).
* All output from the child is stored in @a standard_output and @a standard_error,
* if those parameters are non-nullptr. Note that you must set the
* SPAWN_STDOUT_TO_DEV_NULL and SPAWN_STDERR_TO_DEV_NULL flags when
* passing nullptr for @a standard_output and @a standard_error.
* If @a exit_status is non-nullptr, the exit status of the child is stored
* there as it would be returned by waitpid(); standard UNIX macros such
* as WIFEXITED() and WEXITSTATUS() must be used to evaluate the exit status.
* Note that this function calls waitpid() even if @a exit_status is nullptr, and
* does not accept the SPAWN_DO_NOT_REAP_CHILD flag.
* If an error occurs, no data is returned in @a standard_output,
* @a standard_error, or @a exit_status.
*
* This function calls spawn_async_with_pipes() internally; see that
* function for full details on the other parameters and details on
* how these functions work on Windows.
*
* @param working_directory Child's current working directory, or an empty string to inherit the parent's, in the GLib file name encoding.
* @param argv Child's argument vector.
* @param envp Child's environment.
* @param flags Flags from SpawnFlags
* @param child_setup Slot to run in the child just before exec(), or an empty slot.
* @param standard_output Return location for file descriptor to read child's stdout, or nullptr.
* @param standard_error Return location for file descriptor to read child's stderr, or nullptr.
* @param exit_status Return location for child exit status, as returned by waitpid(), or nullptr
*
* @throws SpawnError Errors are reported even if they occur in the child (for example if the
* executable in argv[0] is not found). Typically
* the message field of returned errors should be displayed
* to users. If an error occurs, @a child_pid, @a standard_input, @a standard_output,
* and @a standard_error will not be filled with valid values.
*/
void spawn_sync(const std::string& working_directory,
const Glib::ArrayHandle<std::string>& argv,
const Glib::ArrayHandle<std::string>& envp,
SpawnFlags flags = SPAWN_DEFAULT,
const SlotSpawnChildSetup& child_setup = SlotSpawnChildSetup(),
std::string* standard_output = nullptr,
std::string* standard_error = nullptr,
int* exit_status = nullptr);
/** Like the main spawn_sync() method, but inheriting the parent's environment.
*
* @param working_directory Child's current working directory, or an empty string to inherit the parent's, in the GLib file name encoding.
* @param argv Child's argument vector.
* @param flags Flags from SpawnFlags
* @param child_setup Slot to run in the child just before exec(), or an empty slot.
* @param standard_output Return location for file descriptor to read child's stdout, or nullptr.
* @param standard_error Return location for file descriptor to read child's stderr, or nullptr.
* @param exit_status Return location for child exit status, as returned by waitpid(), or nullptr
*
* @throws SpawnError Errors are reported even if they occur in the child (for example if the
* executable in argv[0] is not found). Typically
* the message field of returned errors should be displayed
* to users. If an error occurs, @a child_pid, @a standard_input, @a standard_output,
* and @a standard_error will not be filled with valid values.
*/
void spawn_sync(const std::string& working_directory,
const Glib::ArrayHandle<std::string>& argv,
SpawnFlags flags = SPAWN_DEFAULT,
const SlotSpawnChildSetup& child_setup = SlotSpawnChildSetup(),
std::string* standard_output = nullptr,
std::string* standard_error = nullptr,
int* exit_status = nullptr);
/** A simple version of spawn_async() that parses a command line with
* shell_parse_argv() and passes it to spawn_async(). It runs a
* command line in the background. Unlike spawn_async(), the
* SPAWN_SEARCH_PATH flag is enabled, other flags are not. Note
* that SPAWN_SEARCH_PATH can have security implications, so
* consider using spawn_async() directly if appropriate.
*
* The same concerns on Windows apply as for spawn_command_line_sync().
*
* @param command_line A command line.
*
* @throws SpawnError Errors are reported even if they occur in the child (for example if the
* executable in argv[0] is not found). Typically
* the message field of returned errors should be displayed
* to users.
* @throws ShellError If the command line could not be parsed.
*/
void spawn_command_line_async(const std::string& command_line);
/** A simple version of spawn_sync() with little-used parameters
* removed, taking a command line instead of an argument vector. See
* spawn_sync() for full details. @a command_line will be parsed by
* shell_parse_argv(). Unlike spawn_sync(), the SPAWN_SEARCH_PATH flag
* is enabled. Note that SPAWN_SEARCH_PATH can have security
* implications, so consider using spawn_sync() directly if
* appropriate.
*
* If @a exit_status is non-nullptr, the exit status of the child is stored there as
* it would be returned by waitpid(); standard UNIX macros such as WIFEXITED()
* and WEXITSTATUS() must be used to evaluate the exit status.
*
* On Windows, please note the implications of shell_parse_argv()
* parsing @a command_line. Parsing is done according to Unix shell rules, not
* Windows command interpreter rules.
* Space is a separator, and backslashes are
* special. Thus you cannot simply pass a @a command_line containing
* canonical Windows paths, like "c:\\program files\\app\\app.exe", as
* the backslashes will be eaten, and the space will act as a
* separator. You need to enclose such paths with single quotes, like
* "'c:\\program files\\app\\app.exe' 'e:\\folder\\argument.txt'".
*
* @param command_line A command line.
* @param standard_output Return location for child output.
* @param standard_error Return location for child errors.
* @param exit_status Return location for child exit status, as returned by waitpid().
*
* @throws SpawnError Errors are reported even if they occur in the child (for example if the
* executable in argv[0] is not found). Typically
* the message field of returned errors should be displayed
* to users.
* @throws ShellError If the command line could not be parsed.
*/
void spawn_command_line_sync(const std::string& command_line,
std::string* standard_output = nullptr,
std::string* standard_error = nullptr,
int* exit_status = nullptr);
/** On some platforms, notably WIN32, the Pid type represents a resource
* which must be closed to prevent resource leaking. close_pid()
* is provided for this purpose. It should be used on all platforms, even
* though it doesn't do anything under UNIX.
*
* @param pid The process identifier to close.
*/
void spawn_close_pid(Pid pid);
/** @} group Spawn */
} // namespace Glib
#endif /* _GLIBMM_SPAWN_H */