| | |
| | | #include "logger_factory.h" |
| | | #include "shm_allocator.h" |
| | | #include "px_sem_util.h" |
| | | #include "bus_error.h" |
| | | |
| | | // default Queue size |
| | | #define LOCK_FREE_Q_DEFAULT_SIZE 16 |
| | |
| | | /// structures to be inserted in the queue you should think of instantiate the template |
| | | /// of the queue as a pointer to that large structure |
| | | /// @return true if the element was inserted in the queue. False if the queue was full |
| | | bool push(const ELEM_T &a_data); |
| | | bool push_nowait(const ELEM_T &a_data); |
| | | bool push_timeout(const ELEM_T &a_data, const struct timespec * timeout); |
| | | int push(const ELEM_T &a_data); |
| | | int push_nowait(const ELEM_T &a_data); |
| | | int push_timeout(const ELEM_T &a_data, const struct timespec * timeout); |
| | | |
| | | /// @brief pop the element at the head of the queue |
| | | /// @param a reference where the element in the head of the queue will be saved to |
| | | /// Note that the a_data parameter might contain rubbish if the function returns false |
| | | /// @return true if the element was successfully extracted from the queue. False if the queue was empty |
| | | bool pop(ELEM_T &a_data); |
| | | bool pop_nowait(ELEM_T &a_data); |
| | | bool pop_timeout(ELEM_T &a_data, struct timespec * timeout); |
| | | int pop(ELEM_T &a_data); |
| | | int pop_nowait(ELEM_T &a_data); |
| | | int pop_timeout(ELEM_T &a_data, struct timespec * timeout); |
| | | |
| | | |
| | | void *operator new(size_t size); |
| | |
| | | typename ELEM_T, |
| | | typename Allocator, |
| | | template <typename T, typename AT> class Q_TYPE> |
| | | bool LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::push(const ELEM_T &a_data) |
| | | int LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::push(const ELEM_T &a_data) |
| | | { |
| | | // LoggerFactory::getLogger()->debug("==================LockFreeQueue push before\n"); |
| | | if (sem_wait(&slots) == -1) { |
| | | err_msg(errno, "LockFreeQueue push"); |
| | | return false; |
| | | return errno; |
| | | } |
| | | |
| | | if ( m_qImpl.push(a_data) ) { |
| | | sem_post(&items); |
| | | // LoggerFactory::getLogger()->debug("==================LockFreeQueue push after\n"); |
| | | return true; |
| | | return 0; |
| | | } |
| | | return false; |
| | | return -1; |
| | | |
| | | } |
| | | |
| | |
| | | typename ELEM_T, |
| | | typename Allocator, |
| | | template <typename T, typename AT> class Q_TYPE> |
| | | bool LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::push_nowait(const ELEM_T &a_data) |
| | | int LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::push_nowait(const ELEM_T &a_data) |
| | | { |
| | | if (sem_trywait(&slots) == -1) { |
| | | if (errno == EAGAIN) |
| | | return false; |
| | | return EAGAIN; |
| | | else { |
| | | err_msg(errno, "LockFreeQueue push_nowait"); |
| | | return false; |
| | | return errno; |
| | | } |
| | | |
| | | } |
| | | |
| | | if ( m_qImpl.push(a_data)) { |
| | | sem_post(&items); |
| | | return true; |
| | | return 0; |
| | | } |
| | | return false; |
| | | return -1; |
| | | |
| | | } |
| | | |
| | |
| | | typename ELEM_T, |
| | | typename Allocator, |
| | | template <typename T, typename AT> class Q_TYPE> |
| | | bool LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::push_timeout(const ELEM_T &a_data, const struct timespec * ts) |
| | | int LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::push_timeout(const ELEM_T &a_data, const struct timespec * ts) |
| | | { |
| | | // int tmp_sec; |
| | | // struct timespec timeout; |
| | | // if (clock_gettime(CLOCK_REALTIME, &timeout) == -1) |
| | | // err_exit(errno, "clock_gettime"); |
| | | // timeout.tv_nsec += ts->tv_nsec; |
| | | // tmp_sec = timeout.tv_nsec / 10e9; |
| | | // timeout.tv_nsec = timeout.tv_nsec - tmp_sec * 10e9; |
| | | // timeout.tv_sec += ts->tv_sec + tmp_sec; |
| | | |
| | | |
| | | struct timespec timeout = PXSemUtil::calc_sem_timeout(ts); |
| | | // LoggerFactory::getLogger()->debug("==================LockFreeQueue push_timeout before tv_sec=%d, tv_nsec=%ld", |
| | |
| | | // timeout.tv_sec, timeout.tv_nsec, ETIMEDOUT, errno); |
| | | |
| | | if(errno == ETIMEDOUT) |
| | | return false; |
| | | return EBUS_TIMEOUT; |
| | | else if(errno == EINTR) |
| | | continue; |
| | | else { |
| | | // LoggerFactory::getLogger()->error(errno, "LockFreeQueue push_timeout"); |
| | | return false; |
| | | LoggerFactory::getLogger()->error(errno, "LockFreeQueue push_timeout"); |
| | | return errno; |
| | | } |
| | | } |
| | | |
| | | if (m_qImpl.push(a_data)){ |
| | | sem_post(&items); |
| | | // LoggerFactory::getLogger()->debug("==================LockFreeQueue push_timeout after\n"); |
| | | return true; |
| | | return 0; |
| | | } |
| | | return false; |
| | | return -1; |
| | | |
| | | } |
| | | |
| | |
| | | typename ELEM_T, |
| | | typename Allocator, |
| | | template <typename T, typename AT> class Q_TYPE> |
| | | bool LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::pop(ELEM_T &a_data) |
| | | int LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::pop(ELEM_T &a_data) |
| | | { |
| | | |
| | | // LoggerFactory::getLogger()->debug("==================LockFreeQueue pop before\n"); |
| | | if (sem_wait(&items) == -1) { |
| | | LoggerFactory::getLogger()->error(errno, "LockFreeQueue pop"); |
| | | return false; |
| | | return errno; |
| | | } |
| | | |
| | | if (m_qImpl.pop(a_data)) { |
| | | sem_post(&slots); |
| | | // LoggerFactory::getLogger()->debug("==================LockFreeQueue pop after\n"); |
| | | return true; |
| | | return 0; |
| | | } |
| | | return false; |
| | | return -1; |
| | | } |
| | | |
| | | template < |
| | | typename ELEM_T, |
| | | typename Allocator, |
| | | template <typename T, typename AT> class Q_TYPE> |
| | | bool LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::pop_nowait(ELEM_T &a_data) |
| | | int LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::pop_nowait(ELEM_T &a_data) |
| | | { |
| | | if (sem_trywait(&items) == -1) { |
| | | if (errno == EAGAIN) |
| | | return false; |
| | | return errno; |
| | | else { |
| | | LoggerFactory::getLogger()->error(errno, "LockFreeQueue pop_nowait"); |
| | | return false; |
| | | return errno; |
| | | } |
| | | } |
| | | |
| | | if (m_qImpl.pop(a_data)) { |
| | | sem_post(&slots); |
| | | return true; |
| | | return 0; |
| | | } |
| | | return false; |
| | | return -1; |
| | | } |
| | | |
| | | |
| | |
| | | typename ELEM_T, |
| | | typename Allocator, |
| | | template <typename T, typename AT> class Q_TYPE> |
| | | bool LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::pop_timeout(ELEM_T &a_data, struct timespec * ts) |
| | | int LockFreeQueue<ELEM_T, Allocator, Q_TYPE>::pop_timeout(ELEM_T &a_data, struct timespec * ts) |
| | | { |
| | | // LoggerFactory::getLogger()->debug("==================LockFreeQueue pop_timeout before\n"); |
| | | |
| | | struct timespec timeout = PXSemUtil::calc_sem_timeout(ts); |
| | | struct timespec timeout = PXSemUtil::calc_sem_timeout(ts); |
| | | |
| | | while (sem_timedwait(&items, &timeout) == -1) { |
| | | if (errno == ETIMEDOUT) |
| | | return false; |
| | | return EBUS_TIMEOUT; |
| | | else if(errno == EINTR) |
| | | continue; |
| | | else { |
| | | // LoggerFactory::getLogger()->error(errno, "LockFreeQueue pop_timeout"); |
| | | return false; |
| | | LoggerFactory::getLogger()->error(errno, "LockFreeQueue pop_timeout"); |
| | | return -1; |
| | | } |
| | | } |
| | | |
| | | if (m_qImpl.pop(a_data)) { |
| | | sem_post(&slots); |
| | | // LoggerFactory::getLogger()->debug("==================LockFreeQueue pop_timeout after\n"); |
| | | return true; |
| | | return 0; |
| | | } |
| | | return false; |
| | | return -1; |
| | | |
| | | } |
| | | |