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/**
* Copyright (c) 2016-present, Facebook, Inc.
* All rights reserved.
*
* This source code is licensed under the BSD-style license found in the
* LICENSE file in the root directory of this source tree. An additional grant
* of patent rights can be found in the PATENTS file in the same directory.
*/
#ifndef POOL_H
#define POOL_H
#if defined (__cplusplus)
extern "C" {
#endif
#include <stddef.h> /* size_t */
typedef struct POOL_ctx_s POOL_ctx;
/*! POOL_create() :
Create a thread pool with at most `numThreads` threads.
`numThreads` must be at least 1.
The maximum number of queued jobs before blocking is `queueSize`.
`queueSize` must be at least 1.
@return : The POOL_ctx pointer on success else NULL.
*/
POOL_ctx *POOL_create(size_t numThreads, size_t queueSize);
/*! POOL_free() :
Free a thread pool returned by POOL_create().
*/
void POOL_free(POOL_ctx *ctx);
/*! POOL_sizeof() :
return memory usage of pool returned by POOL_create().
*/
size_t POOL_sizeof(POOL_ctx *ctx);
/*! POOL_function :
The function type that can be added to a thread pool.
*/
typedef void (*POOL_function)(void *);
/*! POOL_add_function :
The function type for a generic thread pool add function.
*/
typedef void (*POOL_add_function)(void *, POOL_function, void *);
/*! POOL_add() :
Add the job `function(opaque)` to the thread pool.
Possibly blocks until there is room in the queue.
Note : The function may be executed asynchronously, so `opaque` must live until the function has been completed.
*/
void POOL_add(void *ctx, POOL_function function, void *opaque);
#if defined (__cplusplus)
}
#endif
#endif
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