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New timing infrastructure. There's a new function schedule_timer()

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which pretty much any module can call to request a call-back in the
future. So terminal.c can do its own handling of blinking, visual
bells and deferred screen updates, without having to rely on
term_update() being called 50 times a second (fixes: pterm-timer);
and ssh.c and telnet.c both invoke a new module pinger.c which takes
care of sending keepalives, so they get sent uniformly in all front
ends (fixes: plink-keepalives, unix-keepalives).

[originally from svn r4906]
[this svn revision also touched putty-wishlist]
This commit is contained in:
Simon Tatham
2004-11-27 13:20:21 +00:00
parent d609e1f7f8
commit 7ecf13564a
30 changed files with 1109 additions and 369 deletions
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20
unix/uxplink.c
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@ -252,6 +252,7 @@ int main(int argc, char **argv)
int errors;
int use_subsystem = 0;
void *ldisc, *logctx;
long now;
ssh_get_line = console_get_line;
@ -584,6 +585,7 @@ int main(int argc, char **argv)
atexit(cleanup_termios);
ldisc_update(NULL, 1, 1);
sending = FALSE;
now = GETTICKCOUNT();
while (1) {
fd_set rset, wset, xset;
@ -644,7 +646,23 @@ int main(int argc, char **argv)
}
do {
ret = select(maxfd, &rset, &wset, &xset, NULL);
long next, ticks;
struct timeval tv, *ptv;
if (run_timers(now, &next)) {
ticks = next - GETTICKCOUNT();
if (ticks < 0) ticks = 0; /* just in case */
tv.tv_sec = ticks / 1000;
tv.tv_usec = ticks % 1000 * 1000;
ptv = &tv;
} else {
ptv = NULL;
}
ret = select(maxfd, &rset, &wset, &xset, ptv);
if (ret == 0)
now = next;
else
now = GETTICKCOUNT();
} while (ret < 0 && errno == EINTR);
if (ret < 0) {