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/*
* buffer.c : generate an executable to test the sockets.
* it is used to create/test the sent/receive messages
*
* $Id$
*/
#include <stdlib.h>
#include "buffer.h"
typedef unsigned char BOOLEAN;
typedef BOOLEAN *PBOOLEAN;
#define TRUE 1
#define FALSE 0
#define SIZE_INTERVAL 50
#define CHAR_BUFFER '0'
#define CHAR_LIMIT 'L'
#define CHAR_END 'E'
static unsigned long s_BufferId_ul = 0;
static unsigned long s_BufferId_ul_rcv = 1;
static int Length = 10;
static int koYes = 0;
static int frameAfterKo = 5;
unsigned char * BuildBuffer() {
unsigned char * Buffer_puc;
unsigned long * Buffer_pul;
int i;
int SizeDataBuffer_i;
/* Seed the random-number generator with current time so that
* the numbers will be different every time we run.
*/
/*srand( (unsigned int)(s_BufferId_ul*time(NULL)));*/
Length++;
if (Length > 2000)
Length = 10;
Buffer_puc = (unsigned char *)malloc(Length);
if( Buffer_puc == NULL )
printf( "Insufficient memory available\n" );
/* Build the buffer
* The first word = The length of the buffer
* Every SIZE_INTERVAL char write the CHAR_LIMIT
* The last cahr is CHAR_END
* The other char is CHAR_BUFFER */
/* Intialize the length of the buffer in the first word */
Buffer_pul = (unsigned long *)Buffer_puc;
*Buffer_pul = Length;
/* Intialize the length of the buffer in the first word*/
Buffer_pul++;
s_BufferId_ul++;
*Buffer_pul = s_BufferId_ul;
/* Intialize the buffer with the CHAR_LIMIT and CHAR_BUFFER */
SizeDataBuffer_i = Length-8;
Buffer_puc+=8;
for (i= 0; i<SizeDataBuffer_i; i++){
if( (i%SIZE_INTERVAL)==0 )
Buffer_puc[i] = CHAR_LIMIT;
else
Buffer_puc[i] = CHAR_BUFFER;
}
Buffer_puc[SizeDataBuffer_i-2] = CHAR_END;
Buffer_puc[SizeDataBuffer_i-1] = '\0';
Buffer_puc-=8;
printf("\nBuffer sent ID=<%ld> and length=<%d>/<0x%x>\n", s_BufferId_ul, Length, Length);
fflush(stdout);
return Buffer_puc;
}
void FreeBuffer(unsigned char * p_Buffer_puc){
free(p_Buffer_puc);
}
unsigned char * AllocBuffer()
{
unsigned char * Buffer_puc;
Buffer_puc = (unsigned char *)malloc(SIZE_MAX_RCV_BUFFER);
if( Buffer_puc == NULL ){
printf("Insufficient memory available\n");
fflush(stdout);
}
return Buffer_puc;
}
unsigned long CheckBuffer(unsigned char * p_Buffer_puc)
{
BOOLEAN CheckBuffer_b = TRUE;
unsigned long * Buffer_pul;
unsigned long LenBuffer_ul;
int i=0;
unsigned long BufferId_ul, j;
/*Retrieve the length of the buffer*/
Buffer_pul = (unsigned long *)p_Buffer_puc;
LenBuffer_ul = *Buffer_pul;
/* Retrieve the Id of the buffer*/
Buffer_pul++;
BufferId_ul = *Buffer_pul;
if (BufferId_ul < s_BufferId_ul_rcv) {
s_BufferId_ul_rcv = BufferId_ul;
}
if (BufferId_ul > s_BufferId_ul_rcv) {
for (j = 0; j < (BufferId_ul - s_BufferId_ul_rcv); j++) {
printf("!!!!!!!! Buffer ID=<%ld> lost !!!!!!!!\n", s_BufferId_ul_rcv);
fflush(stdout);
s_BufferId_ul_rcv++ ;
}
/* error */
koYes = 0; /* if koYes = 1 here, the prog will stop 5 reception after */
}
s_BufferId_ul_rcv++ ;
/* Print the information*/
printf("Buffer receive ID=<%ld> and length=<%ld>/<0x%lx> :",BufferId_ul,LenBuffer_ul,LenBuffer_ul);
fflush(stdout);
/* Check the end character*/
if(p_Buffer_puc[LenBuffer_ul-2]!=CHAR_END){
CheckBuffer_b = FALSE;
}
/* Check the sequence characters*/
p_Buffer_puc+=8;
while((CheckBuffer_b)&&(i<(int)(LenBuffer_ul-10)))
{
if( (i%SIZE_INTERVAL)==0 )
CheckBuffer_b = (p_Buffer_puc[i]==CHAR_LIMIT);
else
CheckBuffer_b = (p_Buffer_puc[i]==CHAR_BUFFER);
i++;
}
p_Buffer_puc-=8;
if (CheckBuffer_b) {
printf("OK\n");
fflush(stdout);
}
else {
/* error */
koYes = 0; /* if koYes = 1 here, the prog will stop 5 receptions after */
printf("KO ???\n");
fflush(stdout);
}
if (koYes){
frameAfterKo-- ;
if (frameAfterKo == 0)
return 0;
}
return BufferId_ul;
}
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