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Be a little less enthusiastic about sending SSH_MSG_CHANNEL_WINDOW_ADJUST:

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only send it when it will significantly increase the server's idea of our
window.  This avoids the slew of one-byte WINDOW_ADJUSTs that an interactive
shell typically generates.

[originally from svn r5121]
This commit is contained in:
Ben Harris 2005-01-16 14:43:12 +00:00
parent a6614021ee
commit 214e11a7fe
1 changed files with 8 additions and 1 deletions
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9
ssh.c
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@ -5439,7 +5439,14 @@ static void ssh2_set_window(struct ssh_channel *c, unsigned newwin)
if (c->closes != 0) if (c->closes != 0)
return; return;
if (newwin > c->v.v2.locwindow) { /*
* Only send a WINDOW_ADJUST if there's significantly more window
* available than the other end thinks there is. This saves us
* sending a WINDOW_ADJUST for every character in a shell session.
*
* "Significant" is arbitrarily defined as half the window size.
*/
if (newwin > c->v.v2.locwindow * 2) {
struct Packet *pktout; struct Packet *pktout;
pktout = ssh2_pkt_init(SSH2_MSG_CHANNEL_WINDOW_ADJUST); pktout = ssh2_pkt_init(SSH2_MSG_CHANNEL_WINDOW_ADJUST);