locks

This module contains Nim's support for locks and condition vars.

Types

Lock = SysLock

Nim lock; whether this is re-entrant or not is unspecified! Source Edit

Cond = SysCond

Nim condition variable Source Edit

Procs

proc initLock(lock: var Lock) {...}{.inline, raises: [], tags: [].}

Initializes the given lock. Source Edit

proc deinitLock(lock: var Lock) {...}{.inline, raises: [], tags: [].}

Frees the resources associated with the lock. Source Edit

proc tryAcquire(lock: var Lock): bool {...}{.raises: [], tags: [].}

Tries to acquire the given lock. Returns true on success. Source Edit

proc acquire(lock: var Lock) {...}{.raises: [], tags: [].}

Acquires the given lock. Source Edit

proc release(lock: var Lock) {...}{.raises: [], tags: [].}

Releases the given lock. Source Edit

proc initCond(cond: var Cond) {...}{.inline, raises: [], tags: [].}

Initializes the given condition variable. Source Edit

proc deinitCond(cond: var Cond) {...}{.inline, raises: [], tags: [].}

Frees the resources associated with the condition variable. Source Edit

proc wait(cond: var Cond; lock: var Lock) {...}{.inline, raises: [], tags: [].}

waits on the condition variable cond. Source Edit

proc signal(cond: var Cond) {...}{.inline, raises: [], tags: [].}

sends a signal to the condition variable cond. Source Edit

Templates

template withLock(a: Lock; body: untyped)

Acquires the given lock, executes the statements in body and releases the lock after the statements finish executing. Source Edit