-avoid 'hu', as it is unsigned short, not uint16_t

[oweals/gnunet.git] / src / include / gnunet_peerstore_service.h

diff --git a/src/include/gnunet_peerstore_service.h b/src/include/gnunet_peerstore_service.h
index 4ede69d93fa414e637ea0ad84f462279aa882ab7..7a79a8b5679a2f646f00b8d075eba41d9f6af302 100644 (file)
--- a/src/include/gnunet_peerstore_service.h
+++ b/src/include/gnunet_peerstore_service.h
@@ -37,6 +37,25 @@ extern "C"
 #endif
 #endif
 
+/**
+ * Options for storing values in PEERSTORE
+ */
+enum GNUNET_PEERSTORE_StoreOption
+{
+
+  /**
+   * Possibly store multiple values under given key.
+   */
+  GNUNET_PEERSTORE_STOREOPTION_MULTIPLE,
+
+  /**
+   * Delete any previous values for the given key before
+   * storing the given value.
+   */
+  GNUNET_PEERSTORE_STOREOPTION_REPLACE,
+
+};
+
 /**
  * Handle to the peerstore service.
  */
@@ -130,7 +149,8 @@ GNUNET_PEERSTORE_disconnect(struct GNUNET_PEERSTORE_Handle *h);
  * @param key entry key
  * @param value entry value BLOB
  * @param size size of 'value'
- * @param lifetime relative time after which the entry is (possibly) deleted
+ * @param expiry absolute time after which the entry is (possibly) deleted
+ * @param options store operation option
  * @param cont Continuation function after the store request is processed
  * @param cont_cls Closure for 'cont'
  */
@@ -142,6 +162,7 @@ GNUNET_PEERSTORE_store (struct GNUNET_PEERSTORE_Handle *h,
     const void *value,
     size_t size,
     struct GNUNET_TIME_Absolute expiry,
+    enum GNUNET_PEERSTORE_StoreOption options,
     GNUNET_PEERSTORE_Continuation cont,
     void *cont_cls);
 
@@ -166,7 +187,7 @@ GNUNET_PEERSTORE_store_cancel (struct GNUNET_PEERSTORE_StoreContext *sc);
  */
 struct GNUNET_PEERSTORE_IterateContext *
 GNUNET_PEERSTORE_iterate (struct GNUNET_PEERSTORE_Handle *h,
-    char *sub_system,
+    const char *sub_system,
     const struct GNUNET_PeerIdentity *peer,
     const char *key,
     struct GNUNET_TIME_Relative timeout,
@@ -181,6 +202,33 @@ GNUNET_PEERSTORE_iterate (struct GNUNET_PEERSTORE_Handle *h,
 void
 GNUNET_PEERSTORE_iterate_cancel (struct GNUNET_PEERSTORE_IterateContext *ic);
 
+/**
+ * Request watching a given key
+ * User will be notified with any new values added to key
+ *
+ * @param h handle to the PEERSTORE service
+ * @param sub_system name of sub system
+ * @param peer Peer identity
+ * @param key entry key string
+ * @param callback function called with each new value
+ * @param callback_cls closure for @a callback
+ * @return Handle to watch request
+ */
+struct GNUNET_PEERSTORE_WatchContext *
+GNUNET_PEERSTORE_watch (struct GNUNET_PEERSTORE_Handle *h,
+    const char *sub_system,
+    const struct GNUNET_PeerIdentity *peer,
+    const char *key,
+    GNUNET_PEERSTORE_Processor callback, void *callback_cls);
+
+/**
+ * Cancel a watch request
+ *
+ * @wc handle to the watch request
+ */
+void
+GNUNET_PEERSTORE_watch_cancel(struct GNUNET_PEERSTORE_WatchContext *wc);
+
 #if 0                           /* keep Emacsens' auto-indent happy */
 {
 #endif