process_spawn.h

Go to the documentation of this file.

// Copyright (C) 2015 Internet Systems Consortium, Inc. ("ISC")
//
// This Source Code Form is subject to the terms of the Mozilla Public
// License, v. 2.0. If a copy of the MPL was not distributed with this
// file, You can obtain one at http://mozilla.org/MPL/2.0/.
 
#ifndef PROCESS_SPAWN_H
#define PROCESS_SPAWN_H
 
#include <exceptions/exceptions.h>
#include <boost/noncopyable.hpp>
#include <string>
#include <sys/types.h>
#include <vector>
 
namespace isc {
namespace util {
 
class ProcessSpawnError : public Exception {
public:
    ProcessSpawnError(const char* file, size_t line, const char* what) :
        isc::Exception(file, line, what) { };
};
 
class ProcessSpawnImpl;
 
typedef std::vector<std::string> ProcessArgs;
 
 
class ProcessSpawn : boost::noncopyable {
public:
 
    ProcessSpawn(const std::string& executable,
                 const ProcessArgs& args = ProcessArgs());
 
    ~ProcessSpawn();
 
    std::string getCommandLine() const;
 
    pid_t spawn();
 
    bool isRunning(const pid_t pid) const;
 
    bool isAnyRunning() const;
 
    int getExitStatus(const pid_t pid) const;
 
    void clearState(const pid_t pid);
 
private:
 
    ProcessSpawnImpl* impl_;
 
};
 
}
}
 
#endif // PROCESS_SPAWN_H