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-rw-r--r--cpp/sca/modules/cache/memcached.hpp143
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diff --git a/cpp/sca/modules/cache/memcached.hpp b/cpp/sca/modules/cache/memcached.hpp
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-/*
- * Licensed to the Apache Software Foundation (ASF) under one
- * or more contributor license agreements. See the NOTICE file
- * distributed with this work for additional information
- * regarding copyright ownership. The ASF licenses this file
- * to you under the Apache License, Version 2.0 (the
- * "License"); you may not use this file except in compliance
- * with the License. You may obtain a copy of the License at
- *
- * http://www.apache.org/licenses/LICENSE-2.0
- *
- * Unless required by applicable law or agreed to in writing,
- * software distributed under the License is distributed on an
- * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
- * KIND, either express or implied. See the License for the
- * specific language governing permissions and limitations
- * under the License.
- */
-
-/* $Rev$ $Date$ */
-
-#ifndef tuscany_memcached_hpp
-#define tuscany_memcached_hpp
-
-/**
- * Memcached access functions.
- */
-
-#include "apr.h"
-#include "apu.h"
-#include "apr_general.h"
-#include "apr_strings.h"
-#include "apr_hash.h"
-#include "apr_memcache.h"
-#include "apr_network_io.h"
-
-#include <string>
-#include "list.hpp"
-#include "value.hpp"
-#include "monad.hpp"
-
-namespace tuscany {
-namespace memcached {
-
-/**
- * Represents a memcached context.
- */
-class Cache {
-public:
- Cache() {
- apr_pool_create(&pool, NULL);
- apr_memcache_create(pool, 1, 0, &mc);
- }
- ~Cache() {
- apr_pool_destroy(pool);
- }
-
- operator apr_memcache_t*() const {
- return mc;
- }
-
- operator apr_pool_t*() const {
- return pool;
- }
-
-private:
- apr_pool_t* pool;
- apr_memcache_t* mc;
-
-};
-
-/**
- * Add a server to the memcached context.
- */
-const failable<bool, std::string> addServer(const std::string& host, const int port, const Cache& cache) {
- apr_memcache_server_t *server;
- const apr_status_t sc = apr_memcache_server_create(cache, host.c_str(), port, 0, 1, 1, 60, &server);
- if (sc != APR_SUCCESS)
- return mkfailure<bool, std::string>("Could not create server");
- const apr_status_t as = apr_memcache_add_server(cache, server);
- if (as != APR_SUCCESS)
- return mkfailure<bool, std::string>("Could not add server");
- return true;
-}
-
-/**
- * Post a new item to the cache.
- */
-const failable<bool, std::string> post(const value& key, const value& val, const Cache& cache) {
- const std::string v(val);
- const apr_status_t rc = apr_memcache_add(cache, std::string(key).c_str(), const_cast<char*>(v.c_str()), v.size(), 0, 27);
- if (rc != APR_SUCCESS)
- return mkfailure<bool, std::string>("Could not add entry");
- return true;
-}
-
-/**
- * Update an item in the cache.
- */
-const failable<bool, std::string> put(const value& key, const value& val, const Cache& cache) {
- const std::string v(val);
- const apr_status_t rc = apr_memcache_replace(cache, std::string(key).c_str(), const_cast<char*>(v.c_str()), v.size(), 0, 27);
- if (rc != APR_SUCCESS)
- return mkfailure<bool, std::string>("Could not add entry");
- return true;
-}
-
-/**
- * Get an item from the cache.
- */
-const failable<value, std::string> get(const value& key, const Cache& cache) {
- apr_pool_t* vpool;
- const apr_status_t pc = apr_pool_create(&vpool, cache);
- if (pc != APR_SUCCESS)
- return mkfailure<value, std::string>("Could not allocate memory");
-
- char *data;
- apr_size_t size;
- const apr_status_t rc = apr_memcache_getp(cache, cache, std::string(key).c_str(), &data, &size, NULL);
- if (rc != APR_SUCCESS) {
- apr_pool_destroy(vpool);
- return mkfailure<value, std::string>("Could not get entry");
- }
-
- const value val(std::string(data, size));
- apr_pool_destroy(vpool);
- return val;
-}
-
-/**
- * Delete an item from the cache
- */
-const failable<bool, std::string> del(const value& key, const Cache& cache) {
- const apr_status_t rc = apr_memcache_delete(cache, std::string(key).c_str(), 0);
- if (rc != APR_SUCCESS)
- return mkfailure<bool, std::string>("Could not add entry");
- return true;
-}
-
-}
-}
-
-#endif /* tuscany_memcached_hpp */