Paul Davis
a73d15e989
git-svn-id: svn://localhost/ardour2/branches/3.0@5306 d708f5d6-7413-0410-9779-e7cbd77b26cf
284 lines
8.4 KiB
C++
284 lines
8.4 KiB
C++
// -*- c++ -*-
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/* $Id: spawn.ccg,v 1.8 2006/05/12 08:08:44 murrayc Exp $ */
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/* Copyright (C) 2002 The gtkmm Development Team
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Library General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Library General Public License for more details.
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*
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* You should have received a copy of the GNU Library General Public
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* License along with this library; if not, write to the Free
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* Software Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <glib.h>
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#include <glibmm/exceptionhandler.h>
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#include <glibmm/utility.h>
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namespace
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{
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extern "C"
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{
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/* Helper callback to invoke the actual sigc++ slot.
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* We don't need to worry about (un)referencing, since the
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* child process gets its own copy of the parent's memory anyway.
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*/
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static void child_setup_callback(void* user_data)
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{
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#ifdef GLIBMM_EXCEPTIONS_ENABLED
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try
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{
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#endif //GLIBMM_EXCEPTIONS_ENABLED
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(*reinterpret_cast<sigc::slot<void>*>(user_data))();
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#ifdef GLIBMM_EXCEPTIONS_ENABLED
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}
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catch(...)
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{
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Glib::exception_handlers_invoke();
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}
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#endif //GLIBMM_EXCEPTIONS_ENABLED
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}
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static void copy_output_buf(std::string* dest, const char* buf)
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{
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if(dest)
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{
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if(buf)
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*dest = buf;
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else
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dest->erase();
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}
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}
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} //extern "C"
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} //anonymous namespace
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namespace Glib
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{
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/**** process spawning functions *******************************************/
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void spawn_async_with_pipes(const std::string& working_directory,
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const Glib::ArrayHandle<std::string>& argv,
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const Glib::ArrayHandle<std::string>& envp,
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SpawnFlags flags,
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const sigc::slot<void>& child_setup,
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Pid* child_pid,
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int* standard_input,
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int* standard_output,
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int* standard_error)
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{
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const bool setup_slot = !child_setup.empty();
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sigc::slot<void> child_setup_ = child_setup;
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GError* error = 0;
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g_spawn_async_with_pipes(
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working_directory.c_str(),
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const_cast<char**>(argv.data()),
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const_cast<char**>(envp.data()),
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static_cast<GSpawnFlags>(unsigned(flags)),
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(setup_slot) ? &child_setup_callback : 0,
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(setup_slot) ? &child_setup_ : 0,
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child_pid,
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standard_input, standard_output, standard_error,
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&error);
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if(error)
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Glib::Error::throw_exception(error);
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}
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void spawn_async_with_pipes(const std::string& working_directory,
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const Glib::ArrayHandle<std::string>& argv,
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SpawnFlags flags,
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const sigc::slot<void>& child_setup,
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Pid* child_pid,
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int* standard_input,
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int* standard_output,
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int* standard_error)
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{
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const bool setup_slot = !child_setup.empty();
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sigc::slot<void> child_setup_ = child_setup;
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GError* error = 0;
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g_spawn_async_with_pipes(
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working_directory.c_str(),
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const_cast<char**>(argv.data()), 0,
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static_cast<GSpawnFlags>(unsigned(flags)),
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(setup_slot) ? &child_setup_callback : 0,
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(setup_slot) ? &child_setup_ : 0,
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child_pid,
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standard_input, standard_output, standard_error,
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&error);
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if(error)
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Glib::Error::throw_exception(error);
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}
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void spawn_async(const std::string& working_directory,
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const Glib::ArrayHandle<std::string>& argv,
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const Glib::ArrayHandle<std::string>& envp,
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SpawnFlags flags,
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const sigc::slot<void>& child_setup,
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Pid* child_pid)
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{
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const bool setup_slot = !child_setup.empty();
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sigc::slot<void> child_setup_ = child_setup;
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GError* error = 0;
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g_spawn_async(
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working_directory.c_str(),
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const_cast<char**>(argv.data()),
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const_cast<char**>(envp.data()),
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static_cast<GSpawnFlags>(unsigned(flags)),
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(setup_slot) ? &child_setup_callback : 0,
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(setup_slot) ? &child_setup_ : 0,
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child_pid,
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&error);
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if(error)
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Glib::Error::throw_exception(error);
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}
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void spawn_async(const std::string& working_directory,
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const Glib::ArrayHandle<std::string>& argv,
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SpawnFlags flags,
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const sigc::slot<void>& child_setup,
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Pid* child_pid)
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{
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const bool setup_slot = !child_setup.empty();
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sigc::slot<void> child_setup_ = child_setup;
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GError* error = 0;
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g_spawn_async(
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working_directory.c_str(),
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const_cast<char**>(argv.data()), 0,
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static_cast<GSpawnFlags>(unsigned(flags)),
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(setup_slot) ? &child_setup_callback : 0,
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(setup_slot) ? &child_setup_ : 0,
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child_pid,
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&error);
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if(error)
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Glib::Error::throw_exception(error);
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}
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void spawn_sync(const std::string& working_directory,
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const Glib::ArrayHandle<std::string>& argv,
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const Glib::ArrayHandle<std::string>& envp,
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SpawnFlags flags,
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const sigc::slot<void>& child_setup,
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std::string* standard_output,
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std::string* standard_error,
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int* exit_status)
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{
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const bool setup_slot = !child_setup.empty();
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sigc::slot<void> child_setup_ = child_setup;
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Glib::ScopedPtr<char> buf_standard_output;
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Glib::ScopedPtr<char> buf_standard_error;
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GError* error = 0;
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g_spawn_sync(
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working_directory.c_str(),
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const_cast<char**>(argv.data()),
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const_cast<char**>(envp.data()),
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static_cast<GSpawnFlags>(unsigned(flags)),
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(setup_slot) ? &child_setup_callback : 0,
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(setup_slot) ? &child_setup_ : 0,
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(standard_output) ? buf_standard_output.addr() : 0,
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(standard_error) ? buf_standard_error.addr() : 0,
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exit_status,
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&error);
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if(error)
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Glib::Error::throw_exception(error);
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copy_output_buf(standard_output, buf_standard_output.get());
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copy_output_buf(standard_error, buf_standard_error.get());
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}
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void spawn_sync(const std::string& working_directory,
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const Glib::ArrayHandle<std::string>& argv,
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SpawnFlags flags,
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const sigc::slot<void>& child_setup,
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std::string* standard_output,
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std::string* standard_error,
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int* exit_status)
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{
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const bool setup_slot = !child_setup.empty();
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sigc::slot<void> child_setup_ = child_setup;
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Glib::ScopedPtr<char> buf_standard_output;
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Glib::ScopedPtr<char> buf_standard_error;
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GError* error = 0;
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g_spawn_sync(
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working_directory.c_str(),
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const_cast<char**>(argv.data()), 0,
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static_cast<GSpawnFlags>(unsigned(flags)),
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(setup_slot) ? &child_setup_callback : 0,
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(setup_slot) ? &child_setup_ : 0,
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(standard_output) ? buf_standard_output.addr() : 0,
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(standard_error) ? buf_standard_error.addr() : 0,
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exit_status,
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&error);
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if(error)
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Glib::Error::throw_exception(error);
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copy_output_buf(standard_output, buf_standard_output.get());
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copy_output_buf(standard_error, buf_standard_error.get());
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}
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void spawn_command_line_async(const std::string& command_line)
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{
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GError* error = 0;
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g_spawn_command_line_async(command_line.c_str(), &error);
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if(error)
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Glib::Error::throw_exception(error);
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}
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void spawn_command_line_sync(const std::string& command_line,
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std::string* standard_output,
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std::string* standard_error,
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int* exit_status)
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{
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Glib::ScopedPtr<char> buf_standard_output;
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Glib::ScopedPtr<char> buf_standard_error;
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GError* error = 0;
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g_spawn_command_line_sync(
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command_line.c_str(),
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(standard_output) ? buf_standard_output.addr() : 0,
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(standard_error) ? buf_standard_error.addr() : 0,
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exit_status,
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&error);
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if(error)
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Glib::Error::throw_exception(error);
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copy_output_buf(standard_output, buf_standard_output.get());
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copy_output_buf(standard_error, buf_standard_error.get());
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}
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void spawn_close_pid(Pid pid)
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{
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g_spawn_close_pid(pid);
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}
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} // namespace Glib
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