fdmgr.cpp File Reference

#include <stddef.h>
#include "locationException.h"
#include "epicsAssert.h"
#include "fdManager.h"
#include "fdmgr.h"

Include dependency graph for fdmgr.cpp:

Go to the source code of this file.

Classes
class	fdRegForOldFdmgr
class	fdRegForOldFdmgr::noFunctionSpecified
class	fdRegForOldFdmgr::doubleDelete
class	timerForOldFdmgr
class	timerForOldFdmgr::noFunctionSpecified
class	timerForOldFdmgr::doubleDelete
class	oldFdmgr

Functions
LIBCOM_API fdctx *epicsStdCall	fdmgr_init (void)
LIBCOM_API fdmgrAlarmId epicsStdCall	fdmgr_add_timeout (fdctx *pfdctx, struct timeval *ptimeout, pCallBackFDMgr pFunc, void *pParam)
LIBCOM_API int epicsStdCall	fdmgr_clear_timeout (fdctx *pfdctx, fdmgrAlarmId id)
LIBCOM_API int epicsStdCall	fdmgr_add_callback (fdctx *pfdctx, SOCKET fd, enum fdi_type fdi, pCallBackFDMgr pFunc, void *pParam)
LIBCOM_API int epicsStdCall	fdmgr_clear_callback (fdctx *pfdctx, SOCKET fd, enum fdi_type fdi)
LIBCOM_API int epicsStdCall	fdmgr_pend_event (fdctx *pfdctx, struct timeval *ptimeout)
LIBCOM_API int epicsStdCall	fdmgr_delete (fdctx *pfdctx)
LIBCOM_API int epicsStdCall	fdmgr_clear_fd (fdctx *pfdctx, SOCKET fd)
LIBCOM_API int epicsStdCall	fdmgr_add_fd (fdctx *pfdctx, SOCKET fd, void(*pfunc)(void *pParam), void *param)

Variables
const unsigned	mSecPerSec = 1000u
const unsigned	uSecPerSec = 1000u * mSecPerSec

Function Documentation

LIBCOM_API int epicsStdCall fdmgr_add_callback	(	fdctx *	pfdctx,
		SOCKET	fd,
		enum fdi_type	fdi,
		pCallBackFDMgr	pFunc,
		void *	pParam
	)

Definition at line 229 of file fdmgr.cpp.

{
    oldFdmgr *pfdm = static_cast <oldFdmgr *> (pfdctx);
    fdRegForOldFdmgr *pfdrbc;
    bool onceOnly = (fdi==fdi_write);
    unsigned fdiType;

    if (pfdm==NULL) {
        return -1;
    }

    if (pFunc==NULL) {
        return -1;
    }

    if (fdi<0) {
        return -1;
    }

    fdiType = (unsigned) fdi;

    if (fdiType>=fdiToFdRegTypeNElements) {
        return -1;
    }

    try {
        pfdrbc = new fdRegForOldFdmgr (fd, fdiToFdRegType[fdiType], onceOnly, *pfdm, pFunc, pParam);
    }
    catch (...)
    {
        pfdrbc = NULL;
    }

    if (pfdrbc==NULL) {
        return -1;
    }
    else {
        return 0;
    }
}

LIBCOM_API int epicsStdCall fdmgr_add_fd	(	fdctx *	pfdctx,
		SOCKET	fd,
		void(*)(void *pParam)	pfunc,
		void *	param
	)

Definition at line 331 of file fdmgr.cpp.

{
    return fdmgr_add_callback (pfdctx, fd, fdi_read, pfunc, param);
}

LIBCOM_API fdmgrAlarmId epicsStdCall fdmgr_add_timeout	(	fdctx *	pfdctx,
		struct timeval *	ptimeout,
		pCallBackFDMgr	pFunc,
		void *	pParam
	)

Definition at line 171 of file fdmgr.cpp.

{
    double delay = ptimeout->tv_sec + ptimeout->tv_usec / static_cast <const double> (uSecPerSec);
    oldFdmgr *pfdm = static_cast <oldFdmgr *> (pfdctx);
    timerForOldFdmgr *pTimer;
    unsigned id = fdmgrNoAlarm;

    if (!pfdm) {
        return fdmgrNoAlarm;
    }

    while (true) {
        try {
            pTimer = new timerForOldFdmgr
                (*pfdm, delay, pFunc, pParam);
        }
        catch (...)
        {
            pTimer = NULL;
        }
        if (pTimer) {
            id = pTimer->getId ();
            if (id!=fdmgrNoAlarm) {
                break;
            }
            else {
                delete pTimer;
            }
        }
        else {
            break;
        }
    }

    return id;
}

LIBCOM_API int epicsStdCall fdmgr_clear_callback	(	fdctx *	pfdctx,
		SOCKET	fd,
		enum fdi_type	fdi
	)

Definition at line 271 of file fdmgr.cpp.

{
    oldFdmgr *pfdm = static_cast <oldFdmgr *> (pfdctx);
    fdReg *pFDR;

    if (pfdm==NULL) {
        return -1;
    }

    try {
        pFDR = pfdm->lookUpFD (fd, fdiToFdRegType[fdi]);
    }
    catch (...)
    {
        pFDR = NULL;
    }

    if (pFDR==NULL) {
        return -1;
    }
    else {
        delete pFDR;
        return 0;
    }
}

LIBCOM_API int epicsStdCall fdmgr_clear_fd	(	fdctx *	pfdctx,
		SOCKET	fd
	)

Definition at line 323 of file fdmgr.cpp.

{
    return fdmgr_clear_callback(pfdctx, fd, fdi_read);
}

LIBCOM_API int epicsStdCall fdmgr_clear_timeout	(	fdctx *	pfdctx,
		fdmgrAlarmId	id
	)

Definition at line 209 of file fdmgr.cpp.

{
    oldFdmgr *pfdm = static_cast <oldFdmgr *> (pfdctx);
    timerForOldFdmgr *pTimer;

    try {
        pTimer = pfdm->resTbl.remove (id);
    }
    catch (...)
    {
        pTimer = NULL;
    }

    if (pTimer==NULL) {
        return -1;
    }
    delete pTimer;
    return 0;
}

LIBCOM_API int epicsStdCall fdmgr_delete

(

fdctx *

pfdctx

)

Definition at line 313 of file fdmgr.cpp.

{
    oldFdmgr *pfdm = static_cast <oldFdmgr *> (pfdctx);
    delete pfdm;
    return 0;
}

LIBCOM_API fdctx* epicsStdCall fdmgr_init

(

void

)

Definition at line 156 of file fdmgr.cpp.

{
    oldFdmgr *pfdm;

    try {
        pfdm = new oldFdmgr();
    }
    catch (...)
    {
        pfdm = NULL;
    }

    return (fdctx *) pfdm;
}

LIBCOM_API int epicsStdCall fdmgr_pend_event	(	fdctx *	pfdctx,
		struct timeval *	ptimeout
	)

Definition at line 298 of file fdmgr.cpp.

{
    oldFdmgr *pfdm = static_cast <oldFdmgr *> (pfdctx);
    double delay = ptimeout->tv_sec + ptimeout->tv_usec / static_cast <const double> (uSecPerSec);

    try {
        pfdm->process (delay);
    }
    catch (...) {
        return -1;
    }

    return 0;
}

Variable Documentation

const unsigned mSecPerSec = 1000u

Definition at line 32 of file fdmgr.cpp.

const unsigned uSecPerSec = 1000u * mSecPerSec

Definition at line 33 of file fdmgr.cpp.