SDL offers several thread synchronization primitives. More...

Classes
struct	SDL::MutexRef
	A means to serialize access to a resource between threads. More...

struct	SDL::Mutex
	Handle to an owned mutex. More...

struct	SDL::MutexUnsafe
	Unsafe Handle to mutex. More...

struct	SDL::RWLockRef
	A mutex that allows read-only threads to run in parallel. More...

struct	SDL::RWLock
	Handle to an owned rWLock. More...

struct	SDL::RWLockUnsafe
	Unsafe Handle to rWLock. More...

struct	SDL::SemaphoreRef
	A means to manage access to a resource, by count, between threads. More...

struct	SDL::Semaphore
	Handle to an owned semaphore. More...

struct	SDL::SemaphoreUnsafe
	Unsafe Handle to semaphore. More...

struct	SDL::ConditionRef
	A means to block multiple threads until a condition is satisfied. More...

struct	SDL::Condition
	Handle to an owned condition. More...

struct	SDL::ConditionUnsafe
	Unsafe Handle to condition. More...

struct	SDL::InitState
	A structure used for thread-safe initialization and shutdown. More...

Typedefs
using	SDL::MutexShared = ResourceShared< Mutex >
	Handle to a shared mutex.

using	SDL::MutexWeak = ResourceWeak< Mutex >
	Weak handle to a shared mutex.

using	SDL::RWLockShared = ResourceShared< RWLock >
	Handle to a shared rWLock.

using	SDL::RWLockWeak = ResourceWeak< RWLock >
	Weak handle to a shared rWLock.

using	SDL::SemaphoreShared = ResourceShared< Semaphore >
	Handle to a shared semaphore.

using	SDL::SemaphoreWeak = ResourceWeak< Semaphore >
	Weak handle to a shared semaphore.

using	SDL::ConditionShared = ResourceShared< Condition >
	Handle to a shared condition.

using	SDL::ConditionWeak = ResourceWeak< Condition >
	Weak handle to a shared condition.

using	SDL::InitStatus = SDL_InitStatus
	The current status of an InitState structure.

Functions
MutexShared	SDL::Mutex::share ()
	Move this mutex into a MutexShared.

RWLockShared	SDL::RWLock::share ()
	Move this rWLock into a RWLockShared.

SemaphoreShared	SDL::Semaphore::share ()
	Move this semaphore into a SemaphoreShared.

ConditionShared	SDL::Condition::share ()
	Move this condition into a ConditionShared.

Variables
constexpr InitStatus	SDL::INIT_STATUS_UNINITIALIZED
	INIT_STATUS_UNINITIALIZED.

constexpr InitStatus	SDL::INIT_STATUS_INITIALIZING
	INIT_STATUS_INITIALIZING.

constexpr InitStatus	SDL::INIT_STATUS_INITIALIZED
	INIT_STATUS_INITIALIZED.

constexpr InitStatus	SDL::INIT_STATUS_UNINITIALIZING
	INIT_STATUS_UNINITIALIZING.

Detailed Description

This document can't cover the complicated topic of thread safety, but reading up on what each of these primitives are, why they are useful, and how to correctly use them is vital to writing correct and safe multithreaded programs.

Mutexes: Mutex.Create()
Read/Write locks: RWLock.Create()
Semaphores: Semaphore.Create()
Condition variables: Condition.Create()

SDL also offers a datatype, InitState, which can be used to make sure only one thread initializes/deinitializes some resource that several threads might try to use for the first time simultaneously.