RepoMirrors/haproxy
1
0
Fork 0
mirror of http://git.haproxy.org/git/haproxy.git/ synced 2024-12-13 23:14:46 +00:00
Code Issues Packages Projects Releases Wiki Activity

[MEDIUM] stream_sock: factor out the return path in case of no-writes

Browse Source 
Previously, we wrote nothing only if the buffer was empty. Now with
send_max, we can also write nothing because we are not allowed to send
anything due to send_max.

The code starts to look like spaghetti. It needs to be rearranged a
lot before merging the splice patches.
This commit is contained in:
Willy Tarreau 2009-01-07 20:10:39 +01:00
parent dcef33fa9b
commit 4d9b1dee9f
1 changed files with 11 additions and 7 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
src/stream_sock.c
View File

@ -358,13 +358,12 @@ int stream_sock_write(int fd) {
}
/* Funny, we were called to write something but there wasn't
* anything. Theorically we cannot get there, but just in case,
* let's disable the write event and pretend we never came there.
* anything. We can get there, for example if we were woken up
* on a write event to finish the splice, but the send_max is 0
* so we cannot write anything from the buffer. Let's disable
* the write event and pretend we never came there.
*/
si->flags |= SI_FL_WAIT_DATA;
EV_FD_CLR(fd, DIR_WR);
b->wex = TICK_ETERNITY;
goto out_wakeup;
goto write_nothing;
}
#ifndef MSG_NOSIGNAL
@ -409,6 +408,7 @@ int stream_sock_write(int fd) {
if (!b->l && !b->splice_len) {
b->flags |= BF_EMPTY;
write_nothing:
/* Maybe we just wrote the last chunk and need to close ? */
if ((b->flags & (BF_SHUTW|BF_EMPTY|BF_HIJACK|BF_WRITE_ENA|BF_SHUTR)) == (BF_EMPTY|BF_WRITE_ENA|BF_SHUTR)) {
if (si->state == SI_ST_EST) {
@ -418,7 +418,11 @@ int stream_sock_write(int fd) {
}
}
si->flags |= SI_FL_WAIT_DATA;
/* we may either get there when the buffer is empty or when
* we refrain from sending due to send_max reached.
*/
if (!b->l && !b->splice_len)
si->flags |= SI_FL_WAIT_DATA;
EV_FD_CLR(fd, DIR_WR);
b->wex = TICK_ETERNITY;
goto out_wakeup;