| Line | Branch | Exec | Source |
|---|---|---|---|
| 1 | // ====================================================================== | ||
| 2 | // \title Os/Posix/CountingSemaphore.cpp | ||
| 3 | // \brief Posix implementations for Os::CountingSemaphore | ||
| 4 | // ====================================================================== | ||
| 5 | #include "Os/Posix/CountingSemaphore.hpp" | ||
| 6 | #include <cerrno> | ||
| 7 | #include <ctime> | ||
| 8 | #include "Fw/Types/Assert.hpp" | ||
| 9 | #include "Os/Posix/error.hpp" | ||
| 10 | |||
| 11 | namespace Os { | ||
| 12 | namespace Posix { | ||
| 13 | namespace Semaphore { | ||
| 14 | |||
| 15 | 2585 | PosixCountingSemaphore::PosixCountingSemaphore(U32 initial_count) { | |
| 16 | // Default all pthread semaphores to only be visible to single application (since F' FSW is a single application) | ||
| 17 |
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2585 | int status = sem_init(&this->m_handle.m_semaphore, 0, initial_count); |
| 18 | 2585 | FW_ASSERT(status == 0, static_cast<FwAssertArgType>(status)); | |
| 19 | 2585 | } | |
| 20 | |||
| 21 | 5170 | PosixCountingSemaphore::~PosixCountingSemaphore() { | |
| 22 |
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5170 | (void)sem_destroy(&this->m_handle.m_semaphore); |
| 23 | 5170 | } | |
| 24 | |||
| 25 | 1044 | PosixCountingSemaphore::Status PosixCountingSemaphore::wait() { | |
| 26 | 1044 | int status = 0; | |
| 27 | // @non-terminating@: retry on EINTR | ||
| 28 | do { | ||
| 29 |
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1044 | status = sem_wait(&this->m_handle.m_semaphore); |
| 30 |
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1044 | } while (status != 0 && errno == EINTR); |
| 31 | 1044 | FW_ASSERT(status == 0 || errno != 0, status); | |
| 32 |
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1044 | return status == 0 ? Status::OP_OK : posix_status_to_semaphore_status(errno); |
| 33 | } | ||
| 34 | |||
| 35 | 8 | PosixCountingSemaphore::Status PosixCountingSemaphore::waitTimeout(const Fw::TimeInterval& interval) { | |
| 36 | 8 | struct timespec abstime{}; | |
| 37 | 8 | int clock_status = clock_gettime(CLOCK_REALTIME, &abstime); | |
| 38 | 8 | FW_ASSERT(clock_status == 0, static_cast<FwAssertArgType>(clock_status)); | |
| 39 | |||
| 40 |
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8 | abstime.tv_sec += interval.getSeconds(); |
| 41 |
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8 | abstime.tv_nsec += static_cast<long>(interval.getUSeconds()) * 1000L; |
| 42 | |||
| 43 |
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8 | if (abstime.tv_nsec >= 1000000000L) { |
| 44 | 1 | abstime.tv_sec += abstime.tv_nsec / 1000000000L; | |
| 45 | 1 | abstime.tv_nsec = abstime.tv_nsec % 1000000000L; | |
| 46 | } | ||
| 47 | |||
| 48 | 8 | int status = 0; | |
| 49 | // @non-terminating@: retry on EINTR | ||
| 50 | do { | ||
| 51 |
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8 | status = sem_timedwait(&this->m_handle.m_semaphore, &abstime); |
| 52 |
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8 | } while (status != 0 && errno == EINTR); |
| 53 | 8 | FW_ASSERT(status == 0 || errno != 0, status); | |
| 54 |
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16 | return status == 0 ? Status::OP_OK : posix_status_to_semaphore_status(errno); |
| 55 | } | ||
| 56 | |||
| 57 | 234713 | PosixCountingSemaphore::Status PosixCountingSemaphore::tryWait() { | |
| 58 |
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234713 | int status = sem_trywait(&this->m_handle.m_semaphore); |
| 59 | 235725 | FW_ASSERT(status == 0 || errno != 0, status); | |
| 60 |
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236479 | return status == 0 ? Status::OP_OK : posix_status_to_semaphore_status(errno); |
| 61 | } | ||
| 62 | |||
| 63 | 236324 | PosixCountingSemaphore::Status PosixCountingSemaphore::post() { | |
| 64 |
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236324 | int status = sem_post(&this->m_handle.m_semaphore); |
| 65 | 237416 | FW_ASSERT(status == 0 || errno != 0, status); | |
| 66 |
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237631 | return status == 0 ? Status::OP_OK : posix_status_to_semaphore_status(errno); |
| 67 | } | ||
| 68 | |||
| 69 | ✗ | CountingSemaphoreHandle* PosixCountingSemaphore::getHandle() { | |
| 70 | ✗ | return &m_handle; | |
| 71 | } | ||
| 72 | |||
| 73 | } // namespace Semaphore | ||
| 74 | } // namespace Posix | ||
| 75 | } // namespace Os | ||
| 76 |