193 lines
3.9 KiB
C
193 lines
3.9 KiB
C
/****************************************************************************
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* This file is part of the project Gwenhywfar.
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* Gwenhywfar (c) by 2023 Martin Preuss, all rights reserved.
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*
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* The license for this file can be found in the file COPYING which you
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* should have received along with this file.
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****************************************************************************/
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#ifdef HAVE_CONFIG_H
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# include <config.h>
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#endif
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#include "./fdobject_p.h"
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#include <gwenhywfar/inherit.h>
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#include <gwenhywfar/debug.h>
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#include <sys/socket.h>
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#include <errno.h>
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#include <string.h>
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GWEN_INHERIT(AQH_OBJECT, AQH_FDOBJECT)
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/* ------------------------------------------------------------------------------------------------
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* forward declarations
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* ------------------------------------------------------------------------------------------------
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*/
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static void GWENHYWFAR_CB _freeData(void *bp, void *p);
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static void _cbEnable(AQH_OBJECT *o);
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static void _cbDisable(AQH_OBJECT *o);
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/* ------------------------------------------------------------------------------------------------
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* implementations
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* ------------------------------------------------------------------------------------------------
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*/
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AQH_OBJECT *AQH_FdObject_new(AQH_EVENT_LOOP *eventLoop, int fd, int mode)
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{
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AQH_OBJECT *o;
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AQH_FDOBJECT *xo;
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o=AQH_Object_new(eventLoop);
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GWEN_NEW_OBJECT(AQH_FDOBJECT, xo);
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GWEN_INHERIT_SETDATA(AQH_OBJECT, AQH_FDOBJECT, o, xo, _freeData);
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xo->fd=fd;
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xo->fdMode=mode;
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AQH_Object_SetEnableFn(o, _cbEnable);
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AQH_Object_SetDisableFn(o, _cbDisable);
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return o;
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}
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void GWENHYWFAR_CB _freeData(GWEN_UNUSED void *bp, void *p)
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{
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AQH_FDOBJECT *xo;
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xo=(AQH_FDOBJECT*)p;
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GWEN_FREE_OBJECT(xo);
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}
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int AQH_FdObject_GetFdMode(const AQH_OBJECT *o)
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{
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if (o) {
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AQH_FDOBJECT *xo;
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xo=GWEN_INHERIT_GETDATA(AQH_OBJECT, AQH_FDOBJECT, o);
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if (xo)
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return xo->fdMode;
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}
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return 0;
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}
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void AQH_FdObject_SetFdMode(AQH_OBJECT *o, int i)
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{
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if (o) {
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AQH_FDOBJECT *xo;
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xo=GWEN_INHERIT_GETDATA(AQH_OBJECT, AQH_FDOBJECT, o);
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if (xo)
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xo->fdMode=i;
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}
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}
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int AQH_FdObject_GetFd(const AQH_OBJECT *o)
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{
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if (o) {
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AQH_FDOBJECT *xo;
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xo=GWEN_INHERIT_GETDATA(AQH_OBJECT, AQH_FDOBJECT, o);
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if (xo)
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return xo->fd;
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}
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return -1;
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}
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int AQH_FdObject_Read(AQH_OBJECT *o, uint8_t *ptrBuffer, uint32_t lenBuffer)
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{
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if (o && ptrBuffer && lenBuffer) {
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AQH_FDOBJECT *xo;
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xo=GWEN_INHERIT_GETDATA(AQH_OBJECT, AQH_FDOBJECT, o);
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if (xo) {
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if (xo->fd!=-1) {
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ssize_t rv;
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rv=recv(xo->fd, ptrBuffer, lenBuffer, MSG_DONTWAIT);
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if (rv==0) {
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DBG_INFO(AQH_LOGDOMAIN, "EOF met");
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return 0;
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}
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else if (rv>0) {
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/* data received */
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return (int) rv;
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}
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else {
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if (rv==EINTR || errno==EWOULDBLOCK || errno==EAGAIN) {
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/* temporarily no data, try again */
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return GWEN_ERROR_TRY_AGAIN;
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}
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else {
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DBG_ERROR(AQH_LOGDOMAIN, "Error on read: %s (%d)", strerror(errno), errno);
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xo->fd=-1;
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return GWEN_ERROR_IO;
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}
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}
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}
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else {
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DBG_ERROR(AQH_LOGDOMAIN, "Previous error, not reading.");
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return GWEN_ERROR_IO;
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}
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}
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}
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return GWEN_ERROR_INVALID;
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}
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void _cbEnable(AQH_OBJECT *o)
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{
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if (o && !(AQH_Object_GetFlags(o) & AQH_OBJECT_FLAGS_ENABLED)) {
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AQH_EVENT_LOOP *eventLoop;
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eventLoop=AQH_Object_GetEventLoop(o);
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if (eventLoop) {
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AQH_EventLoop_AddFdObject(eventLoop, o);
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AQH_Object_AddFlags(o, AQH_OBJECT_FLAGS_ENABLED);
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}
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}
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}
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void _cbDisable(AQH_OBJECT *o)
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{
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if (o && (AQH_Object_GetFlags(o) & AQH_OBJECT_FLAGS_ENABLED)) {
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AQH_EVENT_LOOP *eventLoop;
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eventLoop=AQH_Object_GetEventLoop(o);
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if (eventLoop) {
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AQH_EventLoop_DelFdObject(eventLoop, o);
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AQH_Object_SubFlags(o, AQH_OBJECT_FLAGS_ENABLED);
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}
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}
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}
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