X-Git-Url: https://git.m6w6.name/?a=blobdiff_plain;f=docs%2Fmemcached_callback.pod;h=56ba4e29c6a4e3bbb1a4554f0986d92105d4b0f0;hb=d1cd53476c4f30f762c8ca18d335e205086dc95f;hp=7d3fe7306e631d3013826ed2159866e90327c5e3;hpb=2f098cb39e9d28d187c53887b3d70547f6458dd0;p=awesomized%2Flibmemcached diff --git a/docs/memcached_callback.pod b/docs/memcached_callback.pod index 7d3fe730..56ba4e29 100755 --- a/docs/memcached_callback.pod +++ b/docs/memcached_callback.pod @@ -32,6 +32,9 @@ function set by memcached_callback_set(). memcached_callback_set() changes the function/structure assigned by a callback flag. No connections are reset. +You can use MEMCACHED_CALLBACK_USER_DATA to provide custom context if required for any +of the callbacks + =over 4 =item MEMCACHED_CALLBACK_CLEANUP_FUNCTION @@ -57,8 +60,6 @@ The prototype for this is: void *(*memcached_malloc_function)(memcached_st *ptr, const size_t size); -You can use MEMCACHED_CALLBACK_USER_DATA to provide custom context if required for malloc. - =item MEMCACHED_CALLBACK_REALLOC_FUNCTION, This alllows yout to pass in a customized version of realloc that will be used instead of the builtin realloc(3) call. @@ -66,8 +67,6 @@ The prototype for this is: void *(*memcached_realloc_function)(memcached_st *ptr, void *mem, const size_t size); -You can use MEMCACHED_CALLBACK_USER_DATA to provide custom context if required for realloc. - =item MEMCACHED_CALLBACK_FREE_FUNCTION, This alllows yout to pass in a customized version of realloc that will be used instead of the builtin free(3) call. @@ -75,7 +74,17 @@ The prototype for this is: typedef void (*memcached_free_function)(memcached_st *ptr, void *mem); -You can use MEMCACHED_CALLBACK_USER_DATA to provide custom context if required for realloc. +=item MEMCACHED_CALLBACK_GET_FAILURE, + +This function implements the read through cache behavior. On failure of retrieval this callback will be called. +You are responsible for populating the result object provided. This result object will then be stored in the server and +returned to the calling process. You must clone the memcached_st in order to +make use of it. The value will be stored only if you return +MEMCACHED_SUCCESS or MEMCACHED_BUFFERED. Returning MEMCACHED_BUFFERED will +cause the object to be buffered and not sent immediatly (if this is the default behavior based on your connection setup this will happen automatically). + +The prototype for this is: +memcached_return (*memcached_trigger_key)(memcached_st *ptr, char *key, size_t key_length, memcached_result_st *result); =back