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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
/* This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */

#ifndef prtpool_h___
#define prtpool_h___

#include "prtypes.h"
#include "prthread.h"
#include "prio.h"
#include "prerror.h"

/*
 * NOTE:
 *      THIS API IS A PRELIMINARY VERSION IN NSPR 4.0 AND IS SUBJECT TO
 *      CHANGE
 */

PR_BEGIN_EXTERN_C

typedef struct PRJobIoDesc {
    PRFileDesc *socket;
    PRErrorCode error;
    PRIntervalTime timeout;
} PRJobIoDesc;

typedef struct PRThreadPool PRThreadPool;
typedef struct PRJob PRJob;
typedef void (PR_CALLBACK *PRJobFn) (void *arg);

/* Create thread pool */
NSPR_API(PRThreadPool *)
PR_CreateThreadPool(PRInt32 initial_threads, PRInt32 max_threads,
                    PRUint32 stacksize);

/* queue a job */
NSPR_API(PRJob *)
PR_QueueJob(PRThreadPool *tpool, PRJobFn fn, void *arg, PRBool joinable);

/* queue a job, when a socket is readable */
NSPR_API(PRJob *)
PR_QueueJob_Read(PRThreadPool *tpool, PRJobIoDesc *iod,
                 PRJobFn fn, void * arg, PRBool joinable);

/* queue a job, when a socket is writeable */
NSPR_API(PRJob *)
PR_QueueJob_Write(PRThreadPool *tpool, PRJobIoDesc *iod,
                  PRJobFn fn, void * arg, PRBool joinable);

/* queue a job, when a socket has a pending connection */
NSPR_API(PRJob *)
PR_QueueJob_Accept(PRThreadPool *tpool, PRJobIoDesc *iod,
                   PRJobFn fn, void * arg, PRBool joinable);

/* queue a job, when the socket connection to addr succeeds or fails */
NSPR_API(PRJob *)
PR_QueueJob_Connect(PRThreadPool *tpool, PRJobIoDesc *iod,
                    const PRNetAddr *addr, PRJobFn fn, void * arg, PRBool joinable);

/* queue a job, when a timer exipres */
NSPR_API(PRJob *)
PR_QueueJob_Timer(PRThreadPool *tpool, PRIntervalTime timeout,
                  PRJobFn fn, void * arg, PRBool joinable);
/* cancel a job */
NSPR_API(PRStatus)
PR_CancelJob(PRJob *job);

/* join a job */
NSPR_API(PRStatus)
PR_JoinJob(PRJob *job);

/* shutdown pool */
NSPR_API(PRStatus)
PR_ShutdownThreadPool(PRThreadPool *tpool);

/* join pool, wait for exit of all threads */
NSPR_API(PRStatus)
PR_JoinThreadPool(PRThreadPool *tpool);

PR_END_EXTERN_C

#endif /* prtpool_h___ */