| 138 |
|
sprintf(buf, "%s %d\n%s\n%s\n%s\n", progname, getpid(), |
| 139 |
|
inpname, outpname, errname); |
| 140 |
|
n = strlen(buf); |
| 141 |
+ |
lseek(persistfd, 0L, 0); |
| 142 |
|
if (write(persistfd, buf, n) < n) |
| 143 |
|
error(SYSTEM, "error writing persist file"); |
| 144 |
|
/* wait TIMELIM for someone to signal us */ |
| 149 |
|
pflock(0); /* unlock persist file for attach */ |
| 150 |
|
while (!got_io) |
| 151 |
|
pause(); /* wait for attach */ |
| 151 |
– |
pflock(1); /* grab persist file right back! */ |
| 152 |
|
alarm(0); /* turn off alarm */ |
| 153 |
|
signal(SIGALRM, oldalrm); |
| 154 |
|
signal(SIGIO, SIG_DFL); |
| 155 |
< |
if (lseek(persistfd, 0L, 0) < 0 || ftruncate(persistfd, 0L) < 0) |
| 156 |
< |
error(SYSTEM, "seek/truncate error on persist file"); |
| 155 |
> |
pflock(1); /* grab persist file back */ |
| 156 |
|
/* someone wants us; reopen stdin and stdout */ |
| 157 |
|
if (freopen(inpname, "r", stdin) == NULL) |
| 158 |
|
goto openerr; |
| 185 |
|
int fdin, fdout, fderr = -1; |
| 186 |
|
fd_set readfds, writefds, excepfds; |
| 187 |
|
/* load persist file */ |
| 188 |
+ |
n = 40; |
| 189 |
|
while ((nr = read(persistfd, buf, sizeof(buf)-1)) == 0) { |
| 190 |
+ |
if (!n--) |
| 191 |
+ |
error(USER, "unattended persist file?"); |
| 192 |
|
pflock(0); |
| 193 |
|
sleep(15); /* wait until ready */ |
| 194 |
|
pflock(1); |
| 195 |
|
} |
| 194 |
– |
pfdetach(); /* close persist file */ |
| 196 |
|
if (nr < 0) |
| 197 |
|
error(SYSTEM, "error reading persist file"); |
| 198 |
< |
buf[nr] = '\0'; |
| 198 |
> |
ftruncate(persistfd, 0L); /* truncate persist file */ |
| 199 |
> |
pfdetach(); /* close & release persist file */ |
| 200 |
> |
buf[nr] = '\0'; /* parse what we got */ |
| 201 |
|
if ((cp = index(buf, ' ')) == NULL) |
| 202 |
|
goto formerr; |
| 203 |
|
*cp++ = '\0'; |
