| /* |
| * |
| * Copyright (c) 2022 Project CHIP Authors |
| * Copyright (c) 2019 Nest Labs, 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. |
| */ |
| |
| /** |
| * @file |
| * Provides a class that serves as a wrapper for the event system of CYW30739 |
| * platform's underlying RTOS. An event instance is comprised of 32 flags. |
| * Each flag can be utilized for thread synchronization purposes. |
| */ |
| #include "EventFlags.h" |
| |
| #include <lib/support/CodeUtils.h> |
| |
| namespace chip { |
| namespace DeviceLayer { |
| |
| CHIP_ERROR EventFlags::Init(void) |
| { |
| CHIP_ERROR err = CHIP_NO_ERROR; |
| wiced_result_t result; |
| |
| mFlags = wiced_rtos_create_event_flags(); |
| VerifyOrExit(mFlags != nullptr, err = CHIP_ERROR_NO_MEMORY); |
| |
| result = wiced_rtos_init_event_flags(mFlags); |
| VerifyOrExit(result == WICED_SUCCESS, err = CHIP_ERROR_NO_MEMORY); |
| |
| exit: |
| return err; |
| } |
| |
| __attribute__((section(".text_in_ram"))) CHIP_ERROR EventFlags::Set(uint32_t flags) |
| { |
| assert(!wiced_rtos_check_for_stack_overflow()); |
| |
| assert(wiced_rtos_set_event_flags(mFlags, flags) == WICED_SUCCESS); |
| |
| return CHIP_NO_ERROR; |
| } |
| |
| CHIP_ERROR EventFlags::WaitAnyForever(uint32_t & flags) |
| { |
| const wiced_result_t result = |
| wiced_rtos_wait_for_event_flags(mFlags, 0xffffffff, &flags, WICED_TRUE, WAIT_FOR_ANY_EVENT, WICED_WAIT_FOREVER); |
| if (result != WICED_SUCCESS) |
| { |
| ChipLogError(DeviceLayer, "wiced_rtos_wait_for_event_flags 0x%08x", result); |
| return CHIP_ERROR_INTERNAL; |
| } |
| return CHIP_NO_ERROR; |
| } |
| |
| } // namespace DeviceLayer |
| } // namespace chip |