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limit max_fds to FD_SETSIZE of select is used. 

git-svn-id: svn://svn.lighttpd.net/lighttpd/branches/lighttpd-merge-1.4.x@652 152afb58-edef-0310-8abb-c4023f1b3aa9
This commit is contained in:
Jan Kneschke 2005-08-31 08:08:32 +00:00
parent a99be4eb42
commit 3749f4cbfb
1 changed files with 45 additions and 11 deletions
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56
src/server.c
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@ -467,7 +467,17 @@ int main (int argc, char **argv) {
}
}
}
if (srv->event_handler == FDEVENT_HANDLER_SELECT) {
/* select limits itself
*
* as it is a hard limit and will lead to a segfault we add some safety
* */
srv->max_fds = FD_SETSIZE - 200;
} else {
srv->max_fds = 4096;
}
if (i_am_root) {
struct group *grp = NULL;
struct passwd *pwd = NULL;
@ -498,12 +508,23 @@ int main (int argc, char **argv) {
return -1;
}
}
srv->max_fds = rlim.rlim_cur;
#else
srv->max_fds = 4096;
if (srv->event_handler == FDEVENT_HANDLER_SELECT) {
srv->max_fds = rlim.rlim_cur < FD_SETSIZE - 200 ? rlim.rlim_cur : FD_SETSIZE - 200;
} else {
srv->max_fds = rlim.rlim_cur;
}
#endif
if (srv->event_handler == FDEVENT_HANDLER_SELECT) {
/* don't raise the limit above FD_SET_SIZE */
if (srv->max_fds > FD_SETSIZE - 200) {
log_error_write(srv, __FILE__, __LINE__, "sd",
"can't raise max filedescriptors above", FD_SETSIZE - 200,
"if event-handler is 'select'. Use 'poll' or something else or reduce server.max-fds.");
return -1;
}
}
if (NULL == (srv->ev = fdevent_init(srv->max_fds + 1, srv->event_handler))) {
log_error_write(srv, __FILE__, __LINE__,
"s", "fdevent_init failed");
@ -571,6 +592,7 @@ int main (int argc, char **argv) {
if (srv->srvconf.username->used) setuid(pwd->pw_uid);
#endif
} else {
#ifdef HAVE_GETRLIMIT
if (0 != getrlimit(RLIMIT_NOFILE, &rlim)) {
log_error_write(srv, __FILE__, __LINE__,
@ -578,12 +600,24 @@ int main (int argc, char **argv) {
strerror(errno));
return -1;
}
srv->max_fds = rlim.rlim_cur;
#else
srv->max_fds = 4096;
if (srv->event_handler == FDEVENT_HANDLER_SELECT) {
srv->max_fds = rlim.rlim_cur < FD_SETSIZE - 200 ? rlim.rlim_cur : FD_SETSIZE - 200;
} else {
srv->max_fds = rlim.rlim_cur;
}
#endif
if (srv->event_handler == FDEVENT_HANDLER_SELECT) {
/* don't raise the limit above FD_SET_SIZE */
if (srv->max_fds > FD_SETSIZE - 200) {
log_error_write(srv, __FILE__, __LINE__, "sd",
"can't raise max filedescriptors above", FD_SETSIZE - 200,
"if event-handler is 'select'. Use 'poll' or something else or reduce server.max-fds.");
return -1;
}
}
if (NULL == (srv->ev = fdevent_init(srv->max_fds + 1, srv->event_handler))) {
log_error_write(srv, __FILE__, __LINE__,
"s", "fdevent_init failed");