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| author | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2019-12-16 18:24:29 +0000 |
|---|---|---|
| committer | moneromooo-monero <moneromooo-monero@users.noreply.github.com> | 2019-12-16 18:24:52 +0000 |
| commit | 352bd132545428be3c4fc99b5f3b2429cb55b563 (patch) | |
| tree | 2c53e3038de0977c0f96f8c6a5bd3a158b8899e1 | |
| parent | Merge pull request #6057 (diff) | |
| download | monero-352bd132545428be3c4fc99b5f3b2429cb55b563.tar.xz | |
abstract_tcp_server2: guard against negative timeouts
| -rw-r--r-- | contrib/epee/include/net/abstract_tcp_server2.inl | 21 |
1 files changed, 16 insertions, 5 deletions
diff --git a/contrib/epee/include/net/abstract_tcp_server2.inl b/contrib/epee/include/net/abstract_tcp_server2.inl index 128ff10aa..43ede3cc1 100644 --- a/contrib/epee/include/net/abstract_tcp_server2.inl +++ b/contrib/epee/include/net/abstract_tcp_server2.inl @@ -363,8 +363,8 @@ PRAGMA_WARNING_DISABLE_VS(4355) } delay *= 0.5; - if (delay > 0) { - long int ms = (long int)(delay * 100); + long int ms = (long int)(delay * 100); + if (ms > 0) { reset_timer(boost::posix_time::milliseconds(ms + 1), true); boost::this_thread::sleep_for(boost::chrono::milliseconds(ms)); } @@ -721,7 +721,9 @@ PRAGMA_WARNING_DISABLE_VS(4355) boost::posix_time::milliseconds connection<t_protocol_handler>::get_timeout_from_bytes_read(size_t bytes) { boost::posix_time::milliseconds ms = (boost::posix_time::milliseconds)(unsigned)(bytes * TIMEOUT_EXTRA_MS_PER_BYTE); - ms += m_timer.expires_from_now(); + const auto cur = m_timer.expires_from_now().total_milliseconds(); + if (cur > 0) + ms += (boost::posix_time::milliseconds)cur; if (ms > get_default_timeout()) ms = get_default_timeout(); return ms; @@ -747,7 +749,12 @@ PRAGMA_WARNING_DISABLE_VS(4355) template<class t_protocol_handler> void connection<t_protocol_handler>::reset_timer(boost::posix_time::milliseconds ms, bool add) { - MTRACE("Setting " << ms << " expiry"); + if (ms.total_milliseconds() < 0) + { + MWARNING("Ignoring negative timeout " << ms); + return; + } + MTRACE((add ? "Adding" : "Setting") << " " << ms << " expiry"); auto self = safe_shared_from_this(); if(!self) { @@ -760,7 +767,11 @@ PRAGMA_WARNING_DISABLE_VS(4355) return; } if (add) - ms += m_timer.expires_from_now(); + { + const auto cur = m_timer.expires_from_now().total_milliseconds(); + if (cur > 0) + ms += (boost::posix_time::milliseconds)cur; + } m_timer.expires_from_now(ms); m_timer.async_wait([=](const boost::system::error_code& ec) { |