making libscp a real library

some fixes in configuration options

1 files changed, 75 insertions, 0 deletions

diff --git a/sesman/libscp/libscp_lock.h b/sesman/libscp/libscp_lock.h
new file mode 100644
index 00000000..5e29c302
--- /dev/null
+++ b/sesman/libscp/libscp_lock.h
@@ -0,0 +1,75 @@
+/*
+   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., 675 Mass Ave, Cambridge, MA 02139, USA.
+
+   xrdp: A Remote Desktop Protocol server.
+   Copyright (C) Jay Sorg 2005-2007
+*/
+
+#ifndef LIBSCP_LOCK_H
+#define LIBSCP_LOCK_H
+
+#include "libscp_types.h"
+
+#define LIBSCP_LOCK_FORK_BLOCKER   1
+#define LIBSCP_LOCK_FORK_WAITING   0
+
+/**
+ *
+ * @brief initializes all the locks
+ *
+ */
+void DEFAULT_CC
+scp_lock_init(void);
+
+/**
+ *
+ * @brief requires to fork a new child process
+ *
+ */
+void DEFAULT_CC
+scp_lock_fork_request(void);
+
+/**
+ *
+ * @brief releases a fork() request
+ *
+ */
+void DEFAULT_CC
+scp_lock_fork_release(void);
+
+/**
+ *
+ * @brief starts a section that is critical for forking
+ *
+ * starts a section that is critical for forking, that is noone can fork()
+ * while i'm in a critical section. But if someone wanted to fork we have
+ * to wait until he finishes with lock_fork_release()
+ *
+ * @return
+ *
+ */
+int DEFAULT_CC
+scp_lock_fork_critical_section_start(void);
+
+/**
+ *
+ * @brief closes the critical section
+ *
+ */
+void DEFAULT_CC
+scp_lock_fork_critical_section_end(int blocking);
+
+#endif
+