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[GNUnet-SVN] r27345 - gnunet/src/include
From: |
gnunet |
Subject: |
[GNUnet-SVN] r27345 - gnunet/src/include |
Date: |
Fri, 31 May 2013 15:04:39 +0200 |
Author: grothoff
Date: 2013-05-31 15:04:39 +0200 (Fri, 31 May 2013)
New Revision: 27345
Added:
gnunet/src/include/gnunet_regex_service.h
Modified:
gnunet/src/include/Makefile.am
Log:
-regex service API
Modified: gnunet/src/include/Makefile.am
===================================================================
--- gnunet/src/include/Makefile.am 2013-05-31 12:46:17 UTC (rev 27344)
+++ gnunet/src/include/Makefile.am 2013-05-31 13:04:39 UTC (rev 27345)
@@ -70,6 +70,7 @@
gnunet_protocols.h \
gnunet_resolver_service.h \
gnunet_regex_lib.h \
+ gnunet_regex_service.h \
gnunet_scheduler_lib.h \
gnunet_server_lib.h \
gnunet_service_lib.h \
Copied: gnunet/src/include/gnunet_regex_service.h (from rev 27344,
gnunet/src/include/gnunet_regex_lib.h)
===================================================================
--- gnunet/src/include/gnunet_regex_service.h (rev 0)
+++ gnunet/src/include/gnunet_regex_service.h 2013-05-31 13:04:39 UTC (rev
27345)
@@ -0,0 +1,138 @@
+/*
+ This file is part of GNUnet
+ (C) 2012, 2013 Christian Grothoff (and other contributing authors)
+
+ GNUnet 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, or (at your
+ option) any later version.
+
+ GNUnet 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 GNUnet; see the file COPYING. If not, write to the
+ Free Software Foundation, Inc., 59 Temple Place - Suite 330,
+ Boston, MA 02111-1307, USA.
+*/
+/**
+ * @file include/gnunet_regex_service.h
+ * @brief access regex service to advertise capabilities via regex and discover
+ * respective peers using matching strings
+ * @author Maximilian Szengel
+ * @author Christian Grothoff
+ */
+#ifndef GNUNET_REGEX_SERVICE_H
+#define GNUNET_REGEX_SERVICE_H
+
+#include "gnunet_util_lib.h"
+
+#ifdef __cplusplus
+extern "C"
+{
+#if 0 /* keep Emacsens' auto-indent happy */
+}
+#endif
+#endif
+
+
+/**
+ * Constant for how many bytes the initial string regex should have.
+ */
+#define GNUNET_REGEX_INITIAL_BYTES 24
+
+
+/**
+ * Handle to store cached data about a regex announce.
+ */
+struct GNUNET_REGEX_Announcement;
+
+/**
+ * Handle to store data about a regex search.
+ */
+struct GNUNET_REGEX_Search;
+
+
+/**
+ * Announce the given peer under the given regular expression. Does
+ * not free resources, must call GNUNET_REGEX_announce_cancel for
+ * that.
+ *
+ * @param id ID to announce as provider of regex. Own ID in most cases.
+ * @param regex Regular expression to announce.
+ * @param refresh_delay after what delay should the announcement be repeated?
+ * @param compression How many characters per edge can we squeeze?
+ * @return Handle to reuse o free cached resources.
+ * Must be freed by calling GNUNET_REGEX_announce_cancel.
+ */
+struct GNUNET_REGEX_Announcement *
+GNUNET_REGEX_announce (const struct GNUNET_PeerIdentity *id,
+ const char *regex,
+ struct GNUNET_TIME_Relative refresh_delay,
+ uint16_t compression);
+
+
+/**
+ * Stop announcing the regex specified by the given handle.
+ *
+ * @param h handle returned by a previous GNUNET_REGEX_announce call.
+ */
+void
+GNUNET_REGEX_announce_cancel (struct GNUNET_REGEX_Announcement *h);
+
+
+/**
+ * Search callback function, invoked for every result that was found.
+ *
+ * @param cls Closure provided in GNUNET_REGEX_search.
+ * @param id Peer providing a regex that matches the string.
+ * @param get_path Path of the get request.
+ * @param get_path_length Lenght of get_path.
+ * @param put_path Path of the put request.
+ * @param put_path_length Length of the put_path.
+ */
+typedef void (*GNUNET_REGEX_Found)(void *cls,
+ const struct GNUNET_PeerIdentity *id,
+ const struct GNUNET_PeerIdentity *get_path,
+ unsigned int get_path_length,
+ const struct GNUNET_PeerIdentity *put_path,
+ unsigned int put_path_length);
+
+
+/**
+ * Search for a peer offering a regex matching certain string in the DHT.
+ * The search runs until GNUNET_REGEX_search_cancel is called, even if results
+ * are returned.
+ *
+ * @param string String to match against the regexes in the DHT.
+ * @param callback Callback for found peers.
+ * @param callback_cls Closure for @c callback.
+ * @return Handle to stop search and free resources.
+ * Must be freed by calling GNUNET_REGEX_search_cancel.
+ */
+struct GNUNET_REGEX_Search *
+GNUNET_REGEX_search (const char *string,
+ GNUNET_REGEX_Found callback,
+ void *callback_cls);
+
+
+/**
+ * Stop search and free all data used by a GNUNET_REGEX_search call.
+ *
+ * @param h Handle returned by a previous GNUNET_REGEX_search call.
+ */
+void
+GNUNET_REGEX_search_cancel (struct GNUNET_REGEX_Search *h);
+
+
+#if 0 /* keep Emacsens' auto-indent happy */
+{
+#endif
+#ifdef __cplusplus
+}
+#endif
+
+/* end of gnunet_regex_service.h */
+#endif
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