hcq/MaxScale
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity

Mysql_backend now only sends complete packets from the backend servers.

Browse Source
This commit is contained in:
Markus Makela
2015-03-22 08:56:18 +02:00
parent 55513cc998
commit e0ce987d72
2 changed files with 21 additions and 5 deletions
Download Patch File Download Diff File Expand all files Collapse all files

24
server/core/modutil.c
View File

@ -539,19 +539,29 @@ GWBUF* modutil_get_complete_packets(GWBUF** p_readbuf)
{
GWBUF *buff = NULL, *packet;
uint8_t *ptr,*end;
unsigned int len,total = 0;
unsigned int len,blen,total = 0;
if(p_readbuf == NULL || (*p_readbuf) == NULL ||
gwbuf_length(*p_readbuf) < 3)
return NULL;
packet = *p_readbuf;
packet = gwbuf_make_contiguous(*p_readbuf);
ptr = (uint8_t*)packet->start;
end = (uint8_t*)packet->end;
len = gw_mysql_get_byte3(ptr) + 4;
if(ptr + len >= end)
return NULL;
{
if(len == gwbuf_length(*p_readbuf))
{
*p_readbuf = NULL;
return packet;
}
else
{
return NULL;
}
}
while(ptr + len < end)
{
@ -561,13 +571,17 @@ GWBUF* modutil_get_complete_packets(GWBUF** p_readbuf)
}
/** Full packets only, return original */
if(total == gwbuf_length(packet))
if(total + len == (blen = gwbuf_length(packet)))
{
*p_readbuf = NULL;
return packet;
}
/** The next packet is a partial, split into complete and partial packets */
total -= len;
if(buff = gwbuf_alloc(total))
if((buff = gwbuf_alloc(total)) == NULL)
{
skygw_log_write(LOGFILE_ERROR,
"Error: Failed to allocate new buffer "