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

Check the return value of ioctl in dcb_read.

Browse Source
This commit is contained in:
vraatikka 2013-08-19 17:09:33 +03:00
parent f750b8545a
commit 45ea459e20
1 changed files with 26 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

27
server/core/dcb.c
View File

@ -342,8 +342,33 @@ dcb_read(DCB *dcb, GWBUF **head)
{
GWBUF *buffer = NULL;
int b, n = 0;
int rc = 0;
int eno = 0;
ioctl(dcb->fd, FIONREAD, &b);
rc = ioctl(dcb->fd, FIONREAD, &b);
if (rc == -1) {
eno = errno;
errno = 0;
skygw_log_write(
LOGFILE_ERROR,
"%lu [dcb_read] Setting FIONREAD for %d failed. "
"errno %d, %s",
pthread_self(),
dcb->fd,
eno ,
strerror(eno));
skygw_log_write(
LOGFILE_TRACE,
"%lu [dcb_read] Setting FIONREAD for %d failed. "
"errno %d, %s",
pthread_self(),
dcb->fd,
eno ,
strerror(eno));
return -1;
}
while (b > 0)
{
int bufsize = b < MAX_BUFFER_SIZE ? b : MAX_BUFFER_SIZE;