semaphore.h File Reference

Thread synchronization based on Mutex. More...

#include "mutex.h"
#include "condvar.h"

Go to the source code of this file.

Data Structures
struct	Semaphore
	Semaphore structure. More...

Functions
void	semaphoreInit (Semaphore *s, u64 initial_count)
	Initializes a semaphore and its internal counter.
void	semaphoreSignal (Semaphore *s)
	Increments the Semaphore to allow other threads to continue.
void	semaphoreWait (Semaphore *s)
	Decrements Semaphore and waits if 0.
bool	semaphoreTryWait (Semaphore *s)
	Attempts to get lock without waiting.

Detailed Description

Thread synchronization based on Mutex.

Author

SciresM & Kevoot

Copyright

libnx Authors

Function Documentation

semaphoreInit()

void semaphoreInit	(	Semaphore *	s,
		u64	initial_count
	)

Initializes a semaphore and its internal counter.

Parameters

s	Semaphore object.
initial_count	initial value for internal counter (typically the # of free resources).

semaphoreSignal()

void semaphoreSignal

(

Semaphore *

s

)

Increments the Semaphore to allow other threads to continue.

Parameters

s	Semaphore object.

semaphoreTryWait()

bool semaphoreTryWait

(

Semaphore *

s

)

Attempts to get lock without waiting.

Parameters

s	Semaphore object.

Returns

true if no wait and successful lock, false otherwise.

semaphoreWait()

void semaphoreWait

(

Semaphore *

s

)

Decrements Semaphore and waits if 0.

Parameters

s	Semaphore object.