C:/fscan/HTTPCore/CallBack.cpp

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#include "CallBack.h"
#include <stdio.h>
#include <stdlib.h>



typedef struct _cb_list{
    unsigned int cbType;
    HTTP_IO_REQUEST_CALLBACK cb;   
} CB_LIST, *PCB_LIST;

static PCB_LIST CBList=    NULL;
static unsigned int CBItems=   0;

/**********************************************************************************************************************/

/**********************************************************************************************************************/
void RegisterHTTPCallBack(unsigned int cbType, HTTP_IO_REQUEST_CALLBACK cb)
{
        CBList=(PCB_LIST)realloc(CBList,sizeof(CB_LIST)*++CBItems);
    CBList[CBItems-1].cbType=cbType;
    CBList[CBItems-1].cb=cb;
}
/**********************************************************************************************************************/

/**********************************************************************************************************************/
int  RemoveHTTPCallBack(unsigned int cbType, HTTP_IO_REQUEST_CALLBACK cb){
    unsigned int ret=0;
    for (unsigned int i=0;i<CBItems;i++)
    {
        if ( (cb==NULL) || (CBList[i].cb == cb ) )
        {
            if (CBList[i].cbType & cbType)
            {
                CBList[i].cb=NULL;
                ret++;
            }
        }
    }
    if (ret==CBItems) 
    {
        free(CBList);
        CBList=NULL;
        CBItems=0;
    }
    return(ret);
}
/**********************************************************************************************************************/

/**********************************************************************************************************************/
int DoCallBack(int cbType,HTTPHANDLE HTTPHandle,PHTTP_DATA *request,PHTTP_DATA *response)
{
    unsigned int i;
    int ret;
    for (i=0; i<CBItems;i++)
    {
        if ( (CBList[i].cbType & cbType) && (CBList[i].cb) )
        {
            ret=CBList[i].cb (
                cbType,
                HTTPHandle,
                                request,
                                response);
            if (ret & CBRET_STATUS_NEXT_CB_BLOCK)
                break;
            if (ret & CBRET_STATUS_CANCEL_REQUEST)
            {
                return(CBRET_STATUS_CANCEL_REQUEST);
            }
        }
    }     
    return( CBRET_STATUS_NEXT_CB_CONTINUE );
}
/**********************************************************************************************************************/

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