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authorLennart Poettering <lennart@poettering.net>2006-08-22 00:01:42 +0000
committerLennart Poettering <lennart@poettering.net>2006-08-22 00:01:42 +0000
commit036384a8dc6894d77969234aba7fc9141caefc1a (patch)
treef253e69987b29d35852e32c34959887b11fd8757
parentf8086b037dec60a82aa6890f19dbc3f73af46c98 (diff)
a few documentation updates
git-svn-id: file:///home/lennart/svn/public/avahi/trunk@1254 941a03a8-eaeb-0310-b9a0-b1bbd8fe43fe
-rw-r--r--avahi-common/defs.h55
1 files changed, 25 insertions, 30 deletions
diff --git a/avahi-common/defs.h b/avahi-common/defs.h
index 100c9f5..89df59d 100644
--- a/avahi-common/defs.h
+++ b/avahi-common/defs.h
@@ -33,17 +33,17 @@
* Avahi provides three programming APIs for integration of
* mDNS/DNS-SD features into your progams:
*
- * \li avahi-core: an API for embedding a complete mDNS/DNS-SD stack
+ * \li <b>avahi-core</b>: an API for embedding a complete mDNS/DNS-SD stack
* into your software. This is intended for developers of embedded
* ampliances only. We dissuade from using this API in normal desktop
* applications since it is not a good idea to run multiple mDNS
* stacks simultaneously on the same host.
- * \li The DBUS API: an extensive DBUS interface for browsing and
+ * \li <b>the D-Bus API</b>: an extensive D-Bus interface for browsing and
* registering mDNS/DNS-SD services using avahi-daemon. We recommend
* to use this API for software written in any language but
- * C. (i.e. python)
- * \li avahi-client: a simplifying C wrapper around the DBUS API. We
- * recommend to use this API in C or C++ progams. The DBUS internals
+ * C. (i.e. Python)
+ * \li <b>avahi-client</b>: a simplifying C wrapper around the D-Bus API. We
+ * recommend to use this API in C or C++ progams. The D-Bus internals
* are hidden completely.
*
* All three APIs are very similar, however avahi-core is the most powerful.
@@ -60,44 +60,42 @@
* Please note that these compatibility layers are incomplete and
* generally a waste of resources. We strongly encourage everyone to
* use our native APIs for newly written programs and to port older
- * programs to one of them!
+ * programs to avahi-client!
*
* \section error_reporting Error Reporting
*
* Some notes on the Avahi error handling:
*
* - Error codes are negative integers and defined as AVAHI_ERR_xx
- * - If a function returns some kind of non-negative integer value
- * on success, a failure is indicated by returning the error code
+ * - If a function returns some kind of non-negative integer value on
+ * success, a failure is indicated by returning the error code
* directly.
* - If a function returns a pointer of some kind on success, a
* failure is indicated by returning NULL
* - The last error number may be retrieved by calling
- * avahi_server_errno() (for the server API) or avahi_client_errno()
- * (for the client API)
- * - Just like the libc errno variable the Avahi errno is NOT reset
- * to AVAHI_OK if a function call succeeds.
- * - You may convert a numeric error code into a human readable
- * string using avahi_strerror()
- * - The constructor functions avahi_server_new() and
- * avahi_client_new() return the error code in a call-by-reference
- * argument
+ * avahi_client_errno()
+ * - Just like the libc errno variable the Avahi errno is NOT reset to
+ * AVAHI_OK if a function call succeeds.
+ * - You may convert a numeric error code into a human readable string
+ * using avahi_strerror()
+ * - The constructor function avahi_client_new() returns the error
+ * code in a call-by-reference argument
*
* \section event_loop Event Loop Abstraction
*
- * Avahi uses for both avahi-client and avahi-core a simple event loop
- * abstraction layer.A table AvahiPoll which contains function
- * pointers for user defined timeout and I/O condition event source
- * implementations, needs to be passed to avahi_server_new() and
+ * Avahi uses a simple event loop abstraction laye. A table AvahiPoll
+ * which contains function pointers for user defined timeout and I/O
+ * condition event source implementations needs to be passed to
* avahi_client_new(). An adapter for this abstraction layer is
* available for the GLib main loop in the object AvahiGLibPoll. A
* simple stand-alone implementation is available under the name
- * AvahiSimplePoll.
+ * AvahiSimplePoll. An adpater for the Qt main loop is available from
+ * avahi_qt_poll_get().
*
* \section good_publish How to Register Services
*
* - Subscribe to server state changes. Pass a callback function
- * pointer to avahi_client_new()/avahi_server_new(). It will be called
+ * pointer to avahi_client_new(). It will be called
* whenever the server state changes.
* - Only register your services when the server is in state
* AVAHI_SERVER_RUNNING. If you register your services in other server
@@ -129,8 +127,6 @@
* that's exactly what you should do in that case. First call
* avahi_entry_group_reset() to remove it and than readd it normally.
*
- * The linked functions belong to avahi-client. They all have counterparts in the DBUS API and avahi-core.
- *
* \section good_browse How to Browse for Services
*
* - For normal applications you need to call avahi_service_browser_new()
@@ -143,11 +139,10 @@
* - Network monitor software may use avahi_service_type_browser_new()
* to browse for the list of available service types on the LAN. This
* API should NOT be used in normal software since it increases
- * traffic heavily.
+ * traffic immensly. In addition not all DNS-SD implementations
+ * announce their services in away that they can be found with
+ * avahi_server_type_browser_new().
* - There is no need to subscribe to server state changes.
- *
- * The linked functions belong to avahi-client. They all have
- * counterparts in the DBUS API and avahi-core.
*
* \section daemon_dies How to Write a Client That Can Deal with Daemon Restarts
*
@@ -172,7 +167,7 @@
* all kinds of background daemons, but not in software like iChat
* compatible IM software.
*
- * For now AVAHI_CLIENT_NO_FAIL cannot deal with DBUS daemon restarts.
+ * For now AVAHI_CLIENT_NO_FAIL cannot deal with D-Bus daemon restarts.
*
* \section domains How to Deal Properly with Browsing Domains
*