1 files changed, 72 insertions, 0 deletions

diff --git a/src/mt/lock.h b/src/mt/lock.h
new file mode 100644
index 0000000..e019158
--- /dev/null
+++ b/src/mt/lock.h
@@ -0,0 +1,72 @@
+/*************************************************************************
+ *
+ * HTCd - Copyright (C) 1998-2006 Henrik Rydberg
+ *
+ * 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 2 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, write to the Free Software
+ * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
+ */
+
+#ifndef LOCKH
+#define LOCKH
+
+#include <mt/mstring.h>
+
+// OFFERS TWO LOCKING MECHANISMS
+
+void LockFile(const mstring& path,int prot=0660) throw(merror_t);
+void UnlockFile(const mstring& path);
+
+// These functions create an exclusive lock on path by
+// creating a file path.lock.
+// Works well and is the same mechnism used by
+// mailing systems.
+
+////////////////////////////////////////////
+
+struct proclock_t {
+  pid_t pid;
+  mstring path;
+  proclock_t(const mstring& p,int prot=0660);
+  ~proclock_t();
+};
+
+#define PROCLOCK(p) proclock_t proclock(p)
+
+// The proclock class creates a file named path.lock
+// and stores the curent process id in it.
+// once the destructor is called in the same
+// process, the file is removed.
+
+////////////////////////////////////////////
+
+struct nodelock_t {
+  pid_t pid;
+  mstring path;
+  nodelock_t(const mstring& p,int prot=0660);
+  ~nodelock_t();
+};
+
+#define NODELOCK(p) nodelock_t nodelock(p)
+
+// The nodelock class creates a file named path.lock
+// and stores the curent network node name in it.
+// once the destructor is called in the same
+// process, the file is removed.
+
+////////////////////////////////////////////
+
+void ProcTerminate(const mstring& path,int stime=2);
+
+#endif
+