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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 : public refbase
+ {
+ refptr<fileinfo> pTarget;
+ vector<string>::const_iterator CurrentCommandIt;
+ string Command;
+ md5_context md5ctx;
+ bool IgnoreError;
+ };
+private:
+ queue< refptr<fileinfo> > m_Queue;
+ unsigned m_MaxNrCommandsInParallel;
+ mh_pid_t *m_pActiveProcesses;
+ refptr<activeentry> *m_pActiveEntries;
+ unsigned m_NrActiveEntries;
+ mh_pid_t m_DummyWaitHandle;
+
+private:
+ void ThrowCommandExecutionError(refptr<activeentry> pActiveEntry);
+ refptr<activeentry> CreateActiveEntry(void);
+ unsigned GetActiveEntryId(const refptr<activeentry> pActiveEntry) const;
+ void RemoveActiveEntry(unsigned Entry);
+ void RemoveActiveEntry(refptr<activeentry> pActiveEntry)
+ {
+ RemoveActiveEntry(GetActiveEntryId(pActiveEntry));
+ }
+ bool StartExecuteCommands(const refptr<fileinfo> &pTarget);
+ bool StartExecuteNextCommand(refptr<activeentry> pActiveEntry, mh_pid_t *pActiveProcess);
+ void TargetBuildFinished(refptr<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