xuzhenbao commented on code in PR #437: URL: https://github.com/apache/celix/pull/437#discussion_r956166746
########## bundles/remote_services/remote_service_admin_shm_v2/shm_pool/include/shm_cache.h: ########## @@ -0,0 +1,89 @@ +/* + * 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. + */ + +#ifndef _SHM_CACHE_H_ +#define _SHM_CACHE_H_ + +#ifdef __cplusplus +extern "C" { +#endif +#include <celix_errno.h> +#include <sys/types.h> +#include <stddef.h> +#include <stdbool.h> + +typedef struct shm_cache shm_cache_t; + +/** + * @brief Create shared memory cache + * + * @param[in] shmRdOnly Only read shared memory + * @param[out] shmCache The shared memory cache instance + * @return @see celix_errno.h + */ +celix_status_t shmCache_create(bool shmRdOnly, shm_cache_t **shmCache); + +/** + * @brief Destroy shared memory cache + * + * @param[in] shmCache The shared memory cache instance + */ +void shmCache_destroy(shm_cache_t *shmCache); + +/** + * @brief It will be called when shared memory is closed + * + * @param[in] handle Callback handle + * @param[in] shmCache The shared memory cache instance + * @param[in] shmId Closed shared memory id + */ +typedef void (*shmCache_shmPeerClosedCB)(void *handle, shm_cache_t *shmCache, int shmId); + +/** + * @brief Set the shared memory closed callback + * + * @param shmCache The shared memory cache instance + * @param shmPeerClosedCB The shared memory closed callback,it will be called when shared memory is closed + * @param closedCBHandle Callback handle + */ +void shmCache_setShmPeerClosedCB(shm_cache_t *shmCache, shmCache_shmPeerClosedCB shmPeerClosedCB, void *closedCBHandle); + +/** + * @brief Get shared memory address from shared memory cache. + * + * @param shmCache The shared memory cache instance + * @param shmId Shared memory id + * @param memoryOffset shared memory offset + * @return Shared memory address/NULL + */ +void * shmCache_getMemoryPtr(shm_cache_t *shmCache, int shmId, ssize_t memoryOffset); Review Comment: If I know what you mean, I should add a procotol id for serialization, and add version number for all structure shared by multiple processes. Therefore, I have added a `SerialProtocolId` for serialized reuqest, and add a structure size for `shm_pool_shared_info, rsa_shm_msg_control_t, rsa_shm_msg_t`. -- This is an automated message from the Apache Git Service. To respond to the message, please log on to GitHub and use the URL above to go to the specific comment. To unsubscribe, e-mail: dev-unsubscr...@celix.apache.org For queries about this service, please contact Infrastructure at: us...@infra.apache.org
