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Made C program more robust.

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The C test program may serve as copy & paste templates so it should make clear that ip65_process() is supposed to be called pretty regularly. Additionally it isn't supposed to be called recursively meaning that recv callbacks need to return quickly and defer longer processing.
This commit is contained in:
Oliver Schmidt 2017-11-06 23:23:00 +01:00
parent c6efcebf97
commit c4f5c7dbfc
1 changed files with 27 additions and 17 deletions
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44
test/udp.c
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@ -2,13 +2,16 @@
#include <conio.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "../inc/ip65.h"
#define LEN 500
#define SRV "192.168.0.10"
char buf[LEN];
unsigned char buf[1500];
unsigned int len;
unsigned long src;
void error_exit(void)
{
@ -23,19 +26,9 @@ void error_exit(void)
void udp_recv(void)
{
unsigned len = udp_recv_len();
unsigned i;
printf("Recv Len %u From %s", len, dotted_quad(udp_recv_src()));
for (i = 0; i < len; ++i)
{
if ((i % 11) == 0)
{
printf("\n$%04X:", i);
}
printf(" %02X", udp_recv_buf[i]);
}
printf(".\n");
len = udp_recv_len();
src = udp_recv_src();
memcpy(buf, udp_recv_buf, len);
}
void main(void)
@ -44,9 +37,6 @@ void main(void)
unsigned long srv;
char key;
for (i = 0; i < LEN; ++i)
buf[i] = i;
if(!(srv = parse_dotted_quad(SRV)))
{
error_exit();
@ -92,6 +82,10 @@ void main(void)
if (key == 'u')
{
printf("Send Len %d To %s", LEN, SRV);
for (i = 0; i < LEN; ++i)
{
buf[i] = i;
}
if (udp_send(buf, LEN, srv, 6502, 6502))
{
printf("!\n");
@ -101,6 +95,22 @@ void main(void)
printf(".\n");
}
}
if (len)
{
printf("Recv Len %u From %s", len, dotted_quad(src));
for (i = 0; i < len; ++i)
{
if ((i % 11) == 0)
{
ip65_process();
printf("\n$%04X:", i);
}
printf(" %02X", buf[i]);
}
len = 0;
printf(".\n");
}
}
while (key != 'x');