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Allow a few EINVALs from libevent before dying. Warn on kqueue with libevent before 1.1a
svn:r4419
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d8467696f8
commit
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6
doc/TODO
6
doc/TODO
@ -46,9 +46,9 @@ For 0.1.0.x:
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- Is it the buf_shrink bug? (Quite possibly)
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- Instrument the 0.1.1 code to figure out where our memory is going;
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apply the results. (all platforms?)
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- Why does kevent barf with EINVAL on some freebsd boxes?
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- Submit libevent patch to Niels
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- Warn on non-repeated EINVAL in Tor (don't die.)
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. Why does kevent barf with EINVAL on some freebsd boxes?
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o Submit libevent patch to Niels
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o Warn on non-repeated EINVAL in Tor (don't die.)
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- Investigate why freebsd kernel actually does this: it doesn't seem
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simple to trigger.
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@ -2684,7 +2684,8 @@ check_libevent_version(const char *m, const char *v, int server)
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tor_assert(m && v);
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if (!strcmp(m, "kqueue")) {
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if (!strcmp(v, "1.0c")) {
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if (!strcmp(v, "1.0c") || !strcmp(v, "1.0d") || !strcmp(v, "1.0e") ||
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!strcmp(v, "1.1")) {
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buggy = 1;
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}
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} else if (!strcmp(m, "epoll")) {
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@ -810,6 +810,7 @@ run_scheduled_events(time_t now)
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}
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static struct event *timeout_event = NULL;
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static int n_libevent_errors = 0;
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/** Libevent callback: invoked once every second. */
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static void
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@ -829,6 +830,8 @@ second_elapsed_callback(int fd, short event, void *args)
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one_second.tv_usec = 0;
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}
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n_libevent_errors = 0;
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/* log_fn(LOG_NOTICE, "Tick."); */
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tor_gettimeofday(&now);
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@ -885,6 +888,19 @@ second_elapsed_callback(int fd, short event, void *args)
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"Error from libevent when setting one-second timeout event");
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}
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/** Called when a possibly ignorable libevent error occurs; ensures that we
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* don't get into an infinite loop by ignoring too many errors from
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* libevent. */
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int
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got_libevent_error(void)
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{
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if (++n_libevent_errors > 8) {
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log_fn(LOG_ERR, "Too many libevent errors in one second; dying");
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return -1;
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}
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return 0;
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}
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/** Called when we get a SIGHUP: reload configuration files and keys,
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* retry all connections, re-upload all descriptors, and so on. */
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static int
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@ -1001,6 +1017,12 @@ do_main_loop(void)
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tor_socket_strerror(e), e);
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#endif
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return -1;
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#ifndef MS_WINDOWS
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} else if (e == EINVAL) {
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log_fn(LOG_WARN, "EINVAL from libevent: should you upgrade libevent?");
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if (got_libevent_error())
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return -1;
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#endif
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} else {
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if (ERRNO_IS_EINPROGRESS(e))
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log_fn(LOG_WARN,"libevent poll returned EINPROGRESS? Please report.");
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