libnx  v4.2.0
barrier.h
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1 /**
2  * @file barrier.h
3  * @brief Multi-threading Barrier
4  * @author tatehaga
5  * @copyright libnx Authors
6  */
7 #pragma once
8 #include "mutex.h"
9 #include "condvar.h"
10 
11 /// Barrier structure.
12 typedef struct Barrier {
13  u64 count; ///< Number of threads to reach the barrier.
14  u64 total; ///< Number of threads to wait on.
15  Mutex mutex;
16  CondVar condvar;
17 } Barrier;
18 
19 /**
20  * @brief Initializes a barrier and the number of threads to wait on.
21  * @param b Barrier object.
22  * @param thread_count Initial value for the number of threads the barrier must wait for.
23  */
24 void barrierInit(Barrier *b, u64 thread_count);
25 
26 /**
27  * @brief Forces threads to wait until all threads have called barrierWait.
28  * @param b Barrier object.
29  */
30 void barrierWait(Barrier *b);
barrierInit
void barrierInit(Barrier *b, u64 thread_count)
Initializes a barrier and the number of threads to wait on.
condvar.h
Condition variable synchronization primitive.
Barrier::count
u64 count
Number of threads to reach the barrier.
Definition: barrier.h:13
u64
uint64_t u64
64-bit unsigned integer.
Definition: types.h:22
Mutex
_LOCK_T Mutex
Mutex datatype, defined in newlib.
Definition: mutex.h:12
Barrier::total
u64 total
Number of threads to wait on.
Definition: barrier.h:14
mutex.h
Mutex synchronization primitive.
barrierWait
void barrierWait(Barrier *b)
Forces threads to wait until all threads have called barrierWait.
Barrier
Barrier structure.
Definition: barrier.h:12
CondVar
u32 CondVar
Condition variable.
Definition: condvar.h:13