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/*
*
* 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