/* $Id: iox_util.h,v 1.3 2009年09月09日 22:38:13 alex Exp $ */
/*******************************************************************************
 iox_util.h
 I/O Dispatcher Definitions.
*******************************************************************************/
#ifndef IOX_UTIL_H		/* Has the file been INCLUDE'd already? */
#define IOX_UTIL_H yes
#ifdef __cplusplus		/* If this is a C++ compiler, use C linkage */
extern "C" {
#endif
#include "pragmatics.h"		/* Compiler, OS, logging definitions. */
#include "skt_util.h"			/* Socket support functions. */
#include "tv_util.h"			/* "timeval" manipulation functions. */
/*******************************************************************************
 I/O Dispatcher Structures (Client View) and Definitions.
*******************************************************************************/
typedef struct _IoxDispatcher *IoxDispatcher ;	/* I/O dispatcher. */
typedef struct _IoxCallback *IoxCallback ;		/* I/O callback. */
typedef int IoxReason ;				/* Callback reasons. */
#define IoxNone	0
#define IoxRead	1
#define IoxWrite	2
#define IoxExcept	4
#define IoxIO		(IoxRead | IoxWrite | IoxExcept)
#define IoxFire	8
#define IoxIdle	16
#define IoxCancel	32
					/* Handler function prototype. */
typedef errno_t (*IoxHandler) P_((IoxCallback, IoxReason, void *)) ;
/*******************************************************************************
 Miscellaneous declarations.
*******************************************************************************/
					/* Global debug switch (1/0 = yes/no). */
extern int iox_util_debug OCD ("iox_util") ;
/*******************************************************************************
 Public functions (dispatchers).
*******************************************************************************/
extern IoxCallback ioxAfter P_((IoxDispatcher dispatcher,
 IoxHandler handlerF,
 void *userData,
 double interval))
 OCD ("iox_util") ;
extern errno_t ioxCreate P_((IoxDispatcher *dispatcher))
 OCD ("iox_util") ;
extern errno_t ioxDestroy P_((IoxDispatcher dispatcher))
 OCD ("iox_util") ;
extern IoxCallback ioxEvery P_((IoxDispatcher dispatcher,
 IoxHandler handlerF,
 void *userData,
 double delay,
 double interval))
 OCD ("iox_util") ;
extern errno_t ioxMonitor P_((IoxDispatcher dispatcher,
 double interval))
 OCD ("iox_util") ;
extern IoxCallback ioxOnIO P_((IoxDispatcher dispatcher,
 IoxHandler handlerF,
 void *userData,
 IoxReason reason,
 IoFd source))
 OCD ("iox_util") ;
extern IoxCallback ioxWhenIdle P_((IoxDispatcher dispatcher,
 IoxHandler handlerF,
 void *userData))
 OCD ("iox_util") ;
/*******************************************************************************
 Public functions (callbacks).
*******************************************************************************/
extern errno_t ioxCancel P_((IoxCallback callback))
 OCD ("iox_util") ;
extern int ioxDepth P_((IoxCallback callback))
 OCD ("iox_util") ;
extern IoxDispatcher ioxDispatcher P_((IoxCallback callback))
 OCD ("iox_util") ;
extern struct timeval ioxExpiration P_((IoxCallback callback))
 OCD ("iox_util") ;
extern IoFd ioxFd P_((IoxCallback callback))
 OCD ("iox_util") ;
extern double ioxInterval P_((IoxCallback callback))
 OCD ("iox_util") ;
extern errno_t ioxOnCancel P_((IoxCallback callback,
 bool onCancel))
 OCD ("iox_util") ;
#ifdef __cplusplus		/* If this is a C++ compiler, use C linkage */
}
#endif
#endif				/* If this file was not INCLUDE'd previously. */
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