+++ /dev/null
-/* vim:expandtab:shiftwidth=2:tabstop=2:smarttab:
- *
- * Libmemcached library
- *
- * Copyright (C) 2011 Data Differential, http://datadifferential.com/
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- * * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *
- * * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *
- * * The names of its contributors may not be used to endorse or
- * promote products derived from this software without specific prior
- * written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#pragma once
-
-#include "config.h"
-#include <assert.h>
-
-#include <libmemcachedprotocol-0.0/handler.h>
-#include <libmemcachedprotocol/cache.h>
-#include <libmemcached/byteorder.h>
-#include <libmemcached/socket.hpp>
-
-/*
- * I don't really need the following two functions as function pointers
- * in the instance handle, but I don't want to put them in the global
- * namespace for those linking statically (personally I don't like that,
- * but some people still do). If it ever shows up as a performance thing
- * I'll look into optimizing this ;-)
- */
-typedef bool (*drain_func)(memcached_protocol_client_st *client);
-typedef protocol_binary_response_status (*spool_func)(memcached_protocol_client_st *client,
- const void *data,
- size_t length);
-
-/**
- * Definition of the per instance structure.
- */
-struct memcached_protocol_st {
- memcached_binary_protocol_callback_st *callback;
- memcached_protocol_recv_func recv;
- memcached_protocol_send_func send;
-
- /*
- * I really don't need these as funciton pointers, but I don't want
- * to clutter the namespace if someone links statically.
- */
- drain_func drain;
- spool_func spool;
-
- /*
- * To avoid keeping a buffer in each client all the time I have a
- * bigger buffer in the instance that I read to initially, and then
- * I try to parse and execute as much from the buffer. If I wasn't able
- * to process all data I'll keep that in a per-connection buffer until
- * the next time I can read from the socket.
- */
- uint8_t *input_buffer;
- size_t input_buffer_size;
-
- bool pedantic;
- /* @todo use multiple sized buffers */
- cache_t *buffer_cache;
-};
-
-struct chunk_st {
- /* Pointer to the data */
- char *data;
- /* The offset to the first byte into the buffer that is used */
- size_t offset;
- /* The offset into the buffer for the first free byte */
- size_t nbytes;
- /* The number of bytes in the buffer */
- size_t size;
- /* Pointer to the next buffer in the chain */
- struct chunk_st *next;
-};
-
-#define CHUNK_BUFFERSIZE 2048
-
-typedef memcached_protocol_event_t (*process_data)(struct memcached_protocol_client_st *client, ssize_t *length, void **endptr);
-
-enum ascii_cmd {
- GET_CMD,
- GETS_CMD,
- SET_CMD,
- ADD_CMD,
- REPLACE_CMD,
- CAS_CMD,
- APPEND_CMD,
- PREPEND_CMD,
- DELETE_CMD,
- INCR_CMD,
- DECR_CMD,
- STATS_CMD,
- FLUSH_ALL_CMD,
- VERSION_CMD,
- QUIT_CMD,
- VERBOSITY_CMD,
- UNKNOWN_CMD
-};
-
-struct memcached_protocol_client_st {
- memcached_protocol_st *root;
- memcached_socket_t sock;
- int error;
-
- /* Linked list of data to send */
- struct chunk_st *output;
- struct chunk_st *output_tail;
-
- /*
- * While we process input data, this is where we spool incomplete commands
- * if we need to receive more data....
- * @todo use the buffercace
- */
- uint8_t *input_buffer;
- size_t input_buffer_size;
- size_t input_buffer_offset;
-
- /* The callback to the protocol handler to use (ascii or binary) */
- process_data work;
-
- /*
- * Should the spool data discard the data to send or not? (aka noreply in
- * the ascii protocol..
- */
- bool mute;
-
- /* Members used by the binary protocol */
- protocol_binary_request_header *current_command;
-
- /* Members used by the ascii protocol */
- enum ascii_cmd ascii_command;
-};
-
-#include "ascii_handler.h"
-#include "binary_handler.h"
projects / awesomized / libmemcached / blobdiff