#pragma once #include <wut.h> #include "threadqueue.h" /** * \defgroup coreinit_cond Condition Variable * \ingroup coreinit * * Standard condition variable implementation. * * Similar to <a href="http://en.cppreference.com/w/cpp/thread/condition_variable">std::condition_variable</a>. * @{ */ #ifdef __cplusplus extern "C" { #endif typedef struct OSCondition OSCondition; typedef struct OSMutex OSMutex; #define OS_CONDITION_TAG 0x634E6456u struct OSCondition { //! Should always be set to the value OS_CONDITION_TAG. uint32_t tag; //! Name set by OSInitCondEx. const char *name; UNKNOWN(4); //! Queue of threads currently waiting on condition with OSWaitCond. OSThreadQueue queue; }; CHECK_OFFSET(OSCondition, 0x00, tag); CHECK_OFFSET(OSCondition, 0x04, name); CHECK_OFFSET(OSCondition, 0x0c, queue); CHECK_SIZE(OSCondition, 0x1c); /** * Initialise a condition variable structure. */ void OSInitCond(OSCondition *condition); /** * Initialise a condition variable structure with a name. */ void OSInitCondEx(OSCondition *condition, const char *name); /** * Sleep the current thread until the condition variable has been signalled. * * The mutex must be locked when entering this function. * Will unlock the mutex and then sleep, reacquiring the mutex when woken. * * Similar to <a href="http://en.cppreference.com/w/cpp/thread/condition_variable/wait">std::condition_variable::wait</a>. */ void OSWaitCond(OSCondition *condition, OSMutex *mutex); /** * Will wake up any threads waiting on the condition with OSWaitCond. * * Similar to <a href="http://en.cppreference.com/w/cpp/thread/condition_variable/notify_all">std::condition_variable::notify_all</a>. */ void OSSignalCond(OSCondition *condition); #ifdef __cplusplus } #endif /** @} */