| /****************************************************************************** |
| * |
| * Copyright (C) 2014 Google, Inc. |
| * |
| * Licensed 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. |
| * |
| ******************************************************************************/ |
| |
| #define LOG_TAG "bt_osi_data_dispatcher" |
| |
| #include <assert.h> |
| |
| #include "allocator.h" |
| #include "data_dispatcher.h" |
| #include "hash_functions.h" |
| #include "hash_map.h" |
| #include "osi.h" |
| #include "osi/include/log.h" |
| |
| #define DEFAULT_TABLE_BUCKETS 10 |
| |
| struct data_dispatcher_t { |
| char *name; |
| hash_map_t *dispatch_table; |
| fixed_queue_t *default_queue; // We don't own this queue |
| }; |
| |
| data_dispatcher_t *data_dispatcher_new(const char *name) { |
| assert(name != NULL); |
| |
| data_dispatcher_t *ret = osi_calloc(sizeof(data_dispatcher_t)); |
| if (!ret) { |
| LOG_ERROR("%s unable to allocate memory for new data dispatcher.", __func__); |
| goto error; |
| } |
| |
| ret->dispatch_table = hash_map_new(DEFAULT_TABLE_BUCKETS, hash_function_naive, NULL, NULL); |
| if (!ret->dispatch_table) { |
| LOG_ERROR("%s unable to create dispatch table.", __func__); |
| goto error; |
| } |
| |
| ret->name = osi_strdup(name); |
| if (!ret->name) { |
| LOG_ERROR("%s unable to duplicate provided name.", __func__); |
| goto error; |
| } |
| |
| return ret; |
| |
| error:; |
| data_dispatcher_free(ret); |
| return NULL; |
| } |
| |
| void data_dispatcher_free(data_dispatcher_t *dispatcher) { |
| if (!dispatcher) |
| return; |
| |
| hash_map_free(dispatcher->dispatch_table); |
| |
| if (dispatcher->name) |
| osi_free(dispatcher->name); |
| |
| osi_free(dispatcher); |
| } |
| |
| void data_dispatcher_register(data_dispatcher_t *dispatcher, data_dispatcher_type_t type, fixed_queue_t *queue) { |
| assert(dispatcher != NULL); |
| |
| hash_map_erase(dispatcher->dispatch_table, (void *)type); |
| if (queue) |
| hash_map_set(dispatcher->dispatch_table, (void *)type, queue); |
| } |
| |
| void data_dispatcher_register_default(data_dispatcher_t *dispatcher, fixed_queue_t *queue) { |
| assert(dispatcher != NULL); |
| |
| dispatcher->default_queue = queue; |
| } |
| |
| bool data_dispatcher_dispatch(data_dispatcher_t *dispatcher, data_dispatcher_type_t type, void *data) { |
| assert(dispatcher != NULL); |
| assert(data != NULL); |
| |
| fixed_queue_t *queue = hash_map_get(dispatcher->dispatch_table, (void *)type); |
| if (!queue) |
| queue = dispatcher->default_queue; |
| |
| if (queue) |
| fixed_queue_enqueue(queue, data); |
| else |
| LOG_WARN("%s has no handler for type (%d) in data dispatcher named: %s", __func__, type, dispatcher->name); |
| |
| return queue != NULL; |
| } |