add the new files for the last commit :-)

git-svn-id: https://origsvn.digium.com/svn/asterisk/trunk@6063 65c4cc65-6c06-0410-ace0-fbb531ad65f3

1 files changed, 82 insertions, 0 deletions

diff --git a/include/asterisk/devicestate.h b/include/asterisk/devicestate.h
new file mode 100755
index 000000000..a2dd6fd1f
--- /dev/null
+++ b/include/asterisk/devicestate.h
@@ -0,0 +1,82 @@
+/*
+ * Asterisk -- A telephony toolkit for Linux.
+ *
+ * Device state management
+ * 
+ * Copyright (C) 2005, Digium, Inc.
+ *
+ * This program is free software, distributed under the terms of
+ * the GNU General Public License
+ */
+
+#ifndef _ASTERISK_DEVICESTATE_H
+#define _ASTERISK_DEVICESTATE_H
+
+#if defined(__cplusplus) || defined(c_plusplus)
+extern "C" {
+#endif
+
+/*! Device is valid but channel didn't know state */
+#define AST_DEVICE_UNKNOWN	0
+/*! Device is not used */
+#define AST_DEVICE_NOT_INUSE	1
+/*! Device is in use */
+#define AST_DEVICE_INUSE	2
+/*! Device is busy */
+#define AST_DEVICE_BUSY		3
+/*! Device is invalid */
+#define AST_DEVICE_INVALID	4
+/*! Device is unavailable */
+#define AST_DEVICE_UNAVAILABLE	5
+/*! Device is ringing */
+#define AST_DEVICE_RINGING	6
+
+typedef int (*ast_devstate_cb_type)(const char *dev, int state, void *data);
+
+/*! Search the Channels by Name */
+/*!
+ * \param device like a dialstring
+ * Search the Device in active channels by compare the channelname against 
+ * the devicename. Compared are only the first chars to the first '-' char.
+ * Returns an AST_DEVICE_UNKNOWN if no channel found or
+ * AST_DEVICE_INUSE if a channel is found
+ */
+int ast_parse_device_state(const char *device);
+
+/*! Asks a channel for device state */
+/*!
+ * \param device like a dialstring
+ * Asks a channel for device state, data is  normaly a number from dialstring
+ * used by the low level module
+ * Trys the channel devicestate callback if not supported search in the
+ * active channels list for the device.
+ * Returns an AST_DEVICE_??? state -1 on failure
+ */
+int ast_device_state(const char *device);
+
+/*! Tells Asterisk the State for Device is changed */
+/*!
+ * \param fmt devicename like a dialstring with format parameters
+ * Asterisk polls the new extensionstates and calls the registered
+ * callbacks for the changed extensions
+ * Returns 0 on success, -1 on failure
+ */
+int ast_device_state_changed(const char *fmt, ...)
+	__attribute__ ((format (printf, 1, 2)));
+
+/*! Registers a device state change callback */
+/*!
+ * \param data to pass to callback
+ * The callback is called if the state for extension is changed
+ * Return -1 on failure, ID on success
+ */ 
+int ast_devstate_add(ast_devstate_cb_type callback, void *data);
+void ast_devstate_del(ast_devstate_cb_type callback, void *data);
+
+int ast_device_state_engine_init(void);
+
+#if defined(__cplusplus) || defined(c_plusplus)
+}
+#endif
+
+#endif /* _ASTERISK_DEVICESTATE_H */