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/*
* SystemBackendPosix.h
*
* Copyright (C) 2008 Matthias Schiffer <matthias@gamezock.de>
*
* 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 3 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, see <http://www.gnu.org/licenses/>.
*/
#ifndef MAD_MODULES_SYSTEMBACKENDPOSIX_H_
#define MAD_MODULES_SYSTEMBACKENDPOSIX_H_
#include <Common/SystemBackend.h>
#include <map>
#include <string>
#include <vector>
#include <sys/types.h>
#include <sigc++/signal.h>
#include <sigc++/hide.h>
namespace Mad {
namespace Modules {
class SystemBackendPosix : private Common::SystemBackend {
private:
static SystemBackendPosix *backend;
static std::map<pid_t, sigc::slot<void, int> > processes;
static std::map<pid_t, sigc::slot<void, int, const std::string&> > processesWithOutput;
static std::map<pid_t, int> processesWOHandles;
static std::map<pid_t, std::string > processesWOOutput;
static void setChildHandler();
static void childHandler(int);
static void outputHandler(short events, pid_t pid);
static std::pair<char**, char**> makeArgs(const std::string &filename, const std::vector<std::string> &argv, const std::vector<std::string> &env);
static void destroyArgs(std::pair<char**, char**> args);
SystemBackendPosix() {
setChildHandler();
}
void fsInfoCallback(int, const std::string &output, const sigc::slot<void, const std::vector<FSInfo>& > &callback);
protected:
virtual bool fsInfo(const sigc::slot<void, const std::vector<FSInfo>& > &callback);
virtual bool doShutdown(const sigc::slot<void> &callback) {return exec(sigc::hide(callback), "/sbin/halt");}
virtual bool doReboot(const sigc::slot<void> &callback) {return exec(sigc::hide(callback), "/sbin/reboot");}
public:
~SystemBackendPosix();
static void registerBackend() {
if(backend)
return;
backend = new SystemBackendPosix();
SystemBackend::registerBackend(backend);
}
static void unregisterBackend() {
if(!backend)
return;
SystemBackend::unregisterBackend(backend);
delete backend;
backend = 0;
}
static bool exec(const sigc::slot<void, int> &resultHandler, const std::string &filename, const std::vector<std::string> &argv = std::vector<std::string>(),
const std::vector<std::string> &env = std::vector<std::string>());
static bool execWithOutput(const sigc::slot<void, int, const std::string&> &resultHandler, const std::string &filename, const std::vector<std::string> &argv = std::vector<std::string>(),
const std::vector<std::string> &env = std::vector<std::string>());
};
}
}
#endif /* MAD_MODULES_SYSTEMBACKENDPOSIX_H_ */
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