55 lines
1.4 KiB
C++
55 lines
1.4 KiB
C++
#include "../../osal/linux/CountingSemaphore.h"
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#include "../../serviceinterface/ServiceInterfaceStream.h"
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CountingSemaphore::CountingSemaphore(const uint8_t maxCount, uint8_t initCount):
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maxCount(maxCount), initCount(initCount) {
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if(initCount > maxCount) {
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sif::error << "CountingSemaphoreUsingTask: Max count bigger than "
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"intial cout. Setting initial count to max count." << std::endl;
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initCount = maxCount;
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}
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initSemaphore(initCount);
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}
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CountingSemaphore::CountingSemaphore(CountingSemaphore&& other):
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maxCount(other.maxCount), initCount(other.initCount) {
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initSemaphore(initCount);
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}
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CountingSemaphore& CountingSemaphore::operator =(
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CountingSemaphore&& other) {
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initSemaphore(other.initCount);
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return * this;
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}
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ReturnValue_t CountingSemaphore::release() {
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ReturnValue_t result = checkCount(&handle, maxCount);
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if(result != HasReturnvaluesIF::RETURN_OK) {
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return result;
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}
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return CountingSemaphore::release(&this->handle);
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}
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ReturnValue_t CountingSemaphore::release(sem_t* handle) {
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int result = sem_post(handle);
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if(result == 0) {
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return HasReturnvaluesIF::RETURN_OK;
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}
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switch(errno) {
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case(EINVAL):
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// Semaphore invalid
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return SemaphoreIF::SEMAPHORE_INVALID;
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case(EOVERFLOW):
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// SEM_MAX_VALUE overflow. This should never happen
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default:
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return HasReturnvaluesIF::RETURN_FAILED;
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}
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}
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uint8_t CountingSemaphore::getMaxCount() const {
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return maxCount;
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}
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