/*----------------------------------------------------------------------
handle hang up signal -- SIGUSR2
Not much to do. Rely on periodic mail file check pointing.
----------------------------------------------------------------------*/
static RETSIGTYPE
usr2_signal(int sig)
{
char c, *mbox, mboxbuf[20];
int i;
MAILSTREAM *stream;
NETMBX mb;
for(i = 0; i < ps_global->s_pool.nstream; i++) {
stream = ps_global->s_pool.streams[i];
if(stream
&& sp_flagged(stream, SP_LOCKED)
&& !sp_dead_stream(stream)
&& !stream->lock
&& !stream->rdonly
&& stream->mailbox
&& (c = *stream->mailbox) != '{' && c != '*') {
pine_mail_check(stream); /* write latest state */
stream->rdonly = 1; /* and become read-only */
(void) pine_mail_ping(stream);
mbox = stream->mailbox;
if(!strucmp(stream->mailbox, ps_global->inbox_name)
|| !strcmp(stream->mailbox, ps_global->VAR_INBOX_PATH)
|| !strucmp(stream->original_mailbox, ps_global->inbox_name)
|| !strcmp(stream->original_mailbox, ps_global->VAR_INBOX_PATH))
mbox = "INBOX";
else if(mail_valid_net_parse(stream->mailbox, &mb) && mb.mailbox)
mbox = mb.mailbox;
q_status_message1(SM_ASYNC, 3, 7,
_("Another email program is accessing %s. Session now Read-Only."),
short_str((mbox && *mbox) ? mbox : "folder",
mboxbuf, sizeof(mboxbuf), 19, FrontDots));
dprint((1, "** folder %s went read-only **\n\n",
stream->mailbox));
}
}
}
int
check_point(MAILSTREAM *stream, CheckPointTime timing, int flags)
{
int freq, tm, check_count, tst1 = 0, tst2 = 0, accel;
long since_last_input, since_first_change;
time_t now, then;
#define AT_LEAST (180)
#define MIN_LONG_CHK_IDLE (10)
if(!stream || stream->rdonly || stream->halfopen
|| (check_count = sp_check_cnt(stream)) == 0)
return(0);
since_last_input = (long) time(0) - (long) time_of_last_input();
if(timing == GoodTime && since_last_input <= 0)
timing = VeryBadTime;
else if(timing == GoodTime && since_last_input <= 4)
timing = BadTime;
dprint((9, "check_point(%s: %s)\n",
timing == GoodTime ? "GoodTime" :
timing == BadTime ? "BadTime" :
timing == VeryBadTime ? "VeryBadTime" : "DoItNow",
STREAMNAME(stream)));
freq = CHECK_POINT_FREQ * (timing==GoodTime ? 1 : timing==BadTime ? 3 : 4);
tm = CHECK_POINT_TIME * (timing==GoodTime ? 2 : timing==BadTime ? 4 : 6);
tm = MAX(100, tm);
if(timing == DoItNow){
dprint((9, "DoItNow\n"));
}
else{
since_first_change = (long) (time(0) - sp_first_status_change(stream));
accel = MIN(3, MAX(1, (4 * since_first_change)/tm));
tst1 = ((check_count * since_last_input) >= (30/accel) * freq);
tst2 = ((since_first_change >= tm)
&& (since_last_input >= MIN_LONG_CHK_IDLE));
dprint((9,
"Chk changes(%d) x since_last_input(%ld) (=%ld) >= freq(%d) x 30/%d (=%d) ? %s\n",
check_count, since_last_input,
check_count * since_last_input, freq, accel, (30/accel)*freq,
tst1 ? "Yes" : "No"));
dprint((9,
" or since_1st_change(%ld) >= tm(%d) && since_last_input >= %d ? %s\n",
since_first_change, tm, MIN_LONG_CHK_IDLE,
tst2 ? "Yes" : "No"));
}
if(timing == DoItNow || tst1 || tst2){
if(timing == DoItNow
|| time(0) - sp_last_chkpnt_done(stream) >= AT_LEAST){
then = time(0);
dprint((2, "Checkpoint: %s Since 1st change: %ld secs idle: %ld secs\n",
debug_time(0,1),
(long) (then - sp_first_status_change(stream)),
since_last_input))
;
if((flags & NM_STATUS_MSG) && pith_opt_checkpoint_cue)
(*pith_opt_checkpoint_cue)(TRUE);
pine_mail_check(stream); /* write file state */
now = time(0);
dprint((2,
"Checkpoint complete: %s%s%s%s\n",
debug_time(0,1),
(now-then > 0) ? " (elapsed: " : "",
(now-then > 0) ? comatose((long)(now-then)) : "",
(now-then > 0) ? " secs)" : ""));
if((flags & NM_STATUS_MSG) && pith_opt_checkpoint_cue)
(*pith_opt_checkpoint_cue)(FALSE);
return(1);
}
else{
dprint((9,
"Skipping checkpoint since last was only %ld secs ago (< %d)\n",
(long) (time(0) - sp_last_chkpnt_done(stream)), AT_LEAST));
}
}
return(0);
}
