merge of '1442df274a24edc9a31194327bd00dfbcf478720'

     and 'ce02548a6b6a545d97fb3f371506bcf1b5cc5131'

1 files changed, 186 insertions, 0 deletions

diff --git a/libpurple/eventloop.h b/libpurple/eventloop.h
new file mode 100644
index 0000000000..64a2cbc8e6
--- /dev/null
+++ b/libpurple/eventloop.h
@@ -0,0 +1,186 @@
+/**
+ * @file eventloop.h Purple Event Loop API
+ * @ingroup core
+ *
+ * purple
+ *
+ * Purple is the legal property of its developers, whose names are too numerous
+ * to list here.  Please refer to the COPYRIGHT file distributed with this
+ * source distribution.
+ *
+ * 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., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
+ */
+#ifndef _PURPLE_EVENTLOOP_H_
+#define _PURPLE_EVENTLOOP_H_
+
+#include <glib.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/**
+ * An input condition.
+ */
+typedef enum
+{
+	PURPLE_INPUT_READ  = 1 << 0,  /**< A read condition.  */
+	PURPLE_INPUT_WRITE = 1 << 1   /**< A write condition. */
+
+} PurpleInputCondition;
+
+typedef void (*PurpleInputFunction)(gpointer, gint, PurpleInputCondition);
+
+typedef struct _PurpleEventLoopUiOps PurpleEventLoopUiOps;
+
+struct _PurpleEventLoopUiOps
+{
+	/**
+	 * Creates a callback timer with an interval measured in milliseconds.
+	 * @see g_timeout_add, purple_timeout_add
+	 **/
+	guint (*timeout_add)(guint interval, GSourceFunc function, gpointer data);
+
+	/**
+	 * Creates a callback timer with an interval measured in seconds.
+	 * @see g_timeout_add_seconds, purple_timeout_add_seconds
+	 **/
+	guint (*timeout_add_seconds)(guint interval, GSourceFunc function, gpointer data);
+
+	/**
+	 * Removes a callback timer.
+	 * @see purple_timeout_remove, g_source_remove
+	 */
+	gboolean (*timeout_remove)(guint handle);
+
+	/**
+	 * Adds an input handler.
+	 * @see purple_input_add, g_io_add_watch_full
+	 */
+	guint (*input_add)(int fd, PurpleInputCondition cond,
+					   PurpleInputFunction func, gpointer user_data);
+
+	/**
+	 * Removes an input handler.
+	 * @see purple_input_remove, g_source_remove
+	 */
+	gboolean (*input_remove)(guint handle);
+	
+	
+	/**
+	 * Get the current error status for an input.
+	 * Implementation of this UI op is optional. Implement it if the UI's sockets
+	 * or event loop needs to customize determination of socket error status.
+	 * @see purple_input_get_error, getsockopt
+	 */
+	int (*input_get_error)(int fd, int *error);
+
+	void (*_purple_reserved1)(void);
+	void (*_purple_reserved2)(void);
+	void (*_purple_reserved3)(void);
+	void (*_purple_reserved4)(void);
+};
+
+/**************************************************************************/
+/** @name Event Loop API                                                  */
+/**************************************************************************/
+/*@{*/
+/**
+ * Creates a callback timer.
+ * The timer will repeat until the function returns @c FALSE. The
+ * first call will be at the end of the first interval.
+ * @param interval	The time between calls of the function, in
+ *					milliseconds.
+ * @param function	The function to call.
+ * @param data		data to pass to @a function.
+ * @return A handle to the timer which can be passed to 
+ *         purple_timeout_remove to remove the timer.
+ */
+guint purple_timeout_add(guint interval, GSourceFunc function, gpointer data);
+
+/**
+ * Removes a timeout handler.
+ *
+ * @param handle The handle, as returned by purple_timeout_add.
+ *
+ * @return Something.
+ */
+gboolean purple_timeout_remove(guint handle);
+
+/**
+ * Adds an input handler.
+ *
+ * @param fd        The input file descriptor.
+ * @param cond      The condition type.
+ * @param func      The callback function for data.
+ * @param user_data User-specified data.
+ *
+ * @return The resulting handle (will be greater than 0).
+ * @see g_io_add_watch_full
+ */
+guint purple_input_add(int fd, PurpleInputCondition cond,
+					 PurpleInputFunction func, gpointer user_data);
+
+/**
+ * Removes an input handler.
+ *
+ * @param handle The handle of the input handler. Note that this is the return
+ * value from purple_input_add, <i>not</i> the file descriptor.
+ */
+gboolean purple_input_remove(guint handle);
+
+/**
+ * Get the current error status for an input.
+ * The return value and error follow getsockopt() with a level of SOL_SOCKET and an
+ * option name of SO_ERROR, and this is how the error is determined if the UI does not
+ * implement the input_get_error UI op.
+ *
+ * @param fd        The input file descriptor.
+ * @param error		A pointer to an int which on return will have the error, or 0 if no error.
+ *
+ * @return 0 if there is no error; -1 if there is an error, in which case errno will be set.
+ */
+int
+purple_input_get_error(int fd, int *error);
+
+
+/*@}*/
+
+
+/**************************************************************************/
+/** @name UI Registration Functions                                       */
+/**************************************************************************/
+/*@{*/
+/**
+ * Sets the UI operations structure to be used for accounts.
+ *
+ * @param ops The UI operations structure.
+ */
+void purple_eventloop_set_ui_ops(PurpleEventLoopUiOps *ops);
+
+/**
+ * Returns the UI operations structure used for accounts.
+ *
+ * @return The UI operations structure in use.
+ */
+PurpleEventLoopUiOps *purple_eventloop_get_ui_ops(void);
+
+/*@}*/
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _PURPLE_EVENTLOOP_H_ */