condvar.h File Reference

Condition variables. More...

#include <libtransistor/types.h>
#include <libtransistor/mutex.h>

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Data Structures
struct	trn_condvar_t

Macros
#define	TRN_CONDVAR_STATIC_INITIALIZER   {.key = 0}

Functions
void	trn_condvar_create (trn_condvar_t *condvar)
	Creates a condition variable. More...
result_t	trn_condvar_signal (trn_condvar_t *condvar, int n)
	Signals n threads waiting on the condition variable, or -1 for all of them.
result_t	trn_condvar_wait (trn_condvar_t *condvar, trn_mutex_t *mutex, uint64_t timeout) REQUIRES(mutex)
	Waits for the condition variable to be signalled. More...
void	trn_condvar_destroy (trn_condvar_t *condvar)
	Destroys a condition variable.

Detailed Description

Condition variables.

Function Documentation

void trn_condvar_create

(

trn_condvar_t *

condvar

)

Creates a condition variable.

Alternatively, a statically allocated condition variable may be initialized with /ref TRN_CONDVAR_STATIC_INITIALIZER

result_t trn_condvar_wait	(	trn_condvar_t *	condvar,
		trn_mutex_t *	mutex,
		uint64_t	timeout
	)

Waits for the condition variable to be signalled.

Parameters

timeout

How long (in nanoseconds) to wait, or -1 for no timeout