Xirvik Support
49625ab5e5
When an SCGI client closes the connection before rtorrent finishes sending the response, send() in SCgiTask::event_write() returns -1 with errno EPIPE. EPIPE was grouped with EAGAIN/EINTR as a non-fatal retry-later condition, so the task was not closed and its descriptor stayed registered for EPOLLOUT. A broken socket is reported writable immediately, so epoll_wait() returns it on every iteration and the SCGI thread spins at 100% CPU on one core indefinitely. The dead connection fd is also leaked (stays ESTAB). EPIPE is terminal here, not retryable: the peer is gone and the response can never be delivered. Close the task on EPIPE, matching event_read(), which already closes on any recv() error other than EAGAIN/EINTR. Reproduction: open the SCGI socket, send a complete RPC request, then shutdown(SHUT_RDWR)/close before reading the reply. Stock: the rtorrent-scgi thread goes to 100% CPU and the connection leaks. With this change: CPU stays at 0% and the descriptor is closed.
RTorrent BitTorrent Client
Introduction
A ncurses-based command line torrent client for high performance.
To learn how to use rTorrent visit the Wiki.
Download the latest stable release
Related Projects
- https://github.com/rakshasa/rbedit: A dependency-free bencode editor.
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BUILDING
Jump into the github cloned directory
cd rtorrent
Install build dependencies
Install libtorrent with the same version rTorrent.
Generate configure scripts:
autoreconf -ivf
Optionally, generate man pages:
docbook2man rtorrent.1.xml
Man pages output to "doc/rtorrent.1".
RTorrent follows the development of libtorrent closely, and thus the versions must be in sync.
USAGE
Refer to User Guide: https://github.com/rakshasa/rtorrent/wiki/User-Guide
LICENSE
GNU GPL, see COPYING. "libtorrent/src/utils/sha_fast.{cc,h}" is originally from the Mozilla NSS and is under a triple license; MPL, LGPL and GPL. An exception to non-NSS code has been added for linking to OpenSSL as requested by Debian, though the author considers that library to be part of the Operative System and thus linking is allowed according to the GPL.
Use whatever fits your purpose, the code required to compile with Mozilla's NSS implementation of SHA1 has been retained and can be compiled if the user wishes to avoid using OpenSSL.
DEPENDENCIES
- libcurl >= 7.12.0
- libtorrent = (same version)
- ncurses
BUILD DEPENDENCIES
- libtoolize
- aclocal
- autoconf
- autoheader
- automake