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pimd: Modify pim_sock_read to read 3 times before yielding

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Modify pim_sock_read to read up to 3 packets before yielding
the cpu to something else.

Signed-off-by: Donald Sharp <sharpd@cumulusnetworks.com>
This commit is contained in:
Donald Sharp 2016-11-17 10:50:05 -05:00
parent 5441e69048
commit db48bcb23e
1 changed files with 52 additions and 30 deletions
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22
pimd/pim_pim.c
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@ -289,16 +289,33 @@ static int pim_sock_read(struct thread *t)
int len;
ifindex_t ifindex = -1;
int result = -1; /* defaults to bad */
static long long count = 0;
int cont = 1;
ifp = THREAD_ARG(t);
fd = THREAD_FD(t);
pim_ifp = ifp->info;
while (cont)
{
len = pim_socket_recvfromto(fd, buf, sizeof(buf),
&from, &fromlen,
&to, &tolen,
&ifindex);
if (len < 0)
{
if (errno == EINTR)
continue;
if (errno == EWOULDBLOCK || errno == EAGAIN)
{
cont = 0;
break;
}
if (PIM_DEBUG_PIM_PACKETS)
zlog_debug ("Received errno: %d %s", errno, safe_strerror (errno));
goto done;
}
#ifdef PIM_CHECK_RECV_IFINDEX_SANITY
/* ifindex sanity check */
@ -335,6 +352,11 @@ static int pim_sock_read(struct thread *t)
goto done;
}
count++;
if (count % 3 == 0)
cont = 0;
}
result = 0; /* good */
done: