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/* This file is part of mhmake.
*
* Copyright (C) 2001-2009 Marc Haesen
*
* Mhmake 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.
*
* Mhmake 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 Mhmake. If not, see <http://www.gnu.org/licenses/>.
*/
/* $Rev$ */
#ifndef __COMMANDQUEUE_H__
#define __COMMANDQUEUE_H__
#include "fileinfo.h"
#ifdef WIN32
typedef HANDLE mh_pid_t;
#else
typedef pid_t mh_pid_t;
#endif
class commandqueue
{
struct activeentry
{
refptr<fileinfo> pTarget;
vector<string>::const_iterator CurrentCommandIt;
string Command;
md5_context md5ctx;
bool IgnoreError;
void clear()
{
pTarget=NULL;
Command.clear();
#ifdef _DEBUG
md5ctx.Data.clear();
#endif
}
};
private:
queue< refptr<fileinfo> > m_Queue;
unsigned m_MaxNrCommandsInParallel;
mh_pid_t *m_pActiveProcesses;
activeentry *m_pActiveEntries;
unsigned m_NrActiveEntries;
private:
void ThrowCommandExecutionError(activeentry *pActiveEntry);
void AddActiveEntry(activeentry &ActiveEntry, mh_pid_t ActiveProcess);
void RemoveActiveEntry(unsigned Entry);
bool StartExecuteCommands(const refptr<fileinfo> &pTarget);
bool StartExecuteNextCommand(activeentry *pActiveEntry, mh_pid_t *pActiveProcess);
void TargetBuildFinished(activeentry *pActiveEntry);
public:
commandqueue();
~commandqueue();
bool QueueTarget(const refptr<fileinfo> &pTarget); // Returns true if target has been queued, false when commands are executed upon return
mh_time_t WaitForTarget(const refptr<fileinfo> &pTarget);
void SetNrParallelBuilds(unsigned NrParallelBuilds);
};
#endif
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