diff options
| author | Amlal El Mahrouss <amlal.elmahrouss@icloud.com> | 2025-03-23 19:13:48 +0100 |
|---|---|---|
| committer | Amlal El Mahrouss <amlal.elmahrouss@icloud.com> | 2025-03-23 19:15:17 +0100 |
| commit | a13e1c0911c0627184bc38f18c7fdda64447b3ad (patch) | |
| tree | 073a62c09bf216e85a3f310376640fa1805147f9 /dev/kernel/src/BinaryMutex.cc | |
| parent | 149fa096eb306d03686b3b67e813cf1a78e08cd0 (diff) | |
meta(kernel): Reworked repository's filesystem structure.
Removing useless parts of the project too.
Signed-off-by: Amlal El Mahrouss <amlal.elmahrouss@icloud.com>
Diffstat (limited to 'dev/kernel/src/BinaryMutex.cc')
| -rw-r--r-- | dev/kernel/src/BinaryMutex.cc | 74 |
1 files changed, 74 insertions, 0 deletions
diff --git a/dev/kernel/src/BinaryMutex.cc b/dev/kernel/src/BinaryMutex.cc new file mode 100644 index 00000000..4fdaa8f4 --- /dev/null +++ b/dev/kernel/src/BinaryMutex.cc @@ -0,0 +1,74 @@ +/* ------------------------------------------- + + Copyright (C) 2024-2025, Amlal EL Mahrouss, all rights reserved. + +------------------------------------------- */ + +#include <KernelKit/UserProcessScheduler.h> +#include <KernelKit/BinaryMutex.h> + +namespace NeOS +{ + /***********************************************************************************/ + /// @brief Unlocks the semaphore. + /***********************************************************************************/ + Bool BinaryMutex::Unlock() noexcept + { + if (fLockingProcess) + { + fLockingProcess = UserProcess(); + fLockingProcess.Status = ProcessStatusKind::kFrozen; + return Yes; + } + + return No; + } + + /***********************************************************************************/ + /// @brief Locks process in the semaphore. + /***********************************************************************************/ + Bool BinaryMutex::Lock(UserProcess& process) + { + if (!process || fLockingProcess) + return No; + + fLockingProcess = process; + + return Yes; + } + + /***********************************************************************************/ + /// @brief Checks if process is locked. + /***********************************************************************************/ + Bool BinaryMutex::IsLocked() const + { + return fLockingProcess.Status == ProcessStatusKind::kRunning; + } + + /***********************************************************************************/ + /// @brief Try lock or wait. + /***********************************************************************************/ + Bool BinaryMutex::LockOrWait(UserProcess& process, TimerInterface* timer) + { + if (timer == nullptr) + return No; + + this->Lock(process); + + timer->Wait(); + + return this->Lock(process); + } + + /***********************************************************************************/ + /// @brief Wait for process **sec** until we check if it's free. + /// @param sec seconds. + /***********************************************************************************/ + BOOL BinaryMutex::WaitForProcess(const Int16& sec) noexcept + { + HardwareTimer hw_timer(rtl_seconds(sec)); + hw_timer.Wait(); + + return !this->IsLocked(); + } +} // namespace NeOS |
