* C++ modernize: Replace MIN/MAX with type safe std::min/std::max
* Template std::min/max invocations now explicitly use largest integer type
* torrent.cc did not have <algorithm> included
* MIN/MAX Changes for subprocess-win32.cc
* Using type{} style cast instead of template parameter in std::min/max
* 32-bit type cast errors with uint64_t versus size_t
* 32-bit type cast errors inout.cc and file.cc
* Missing include in windows code; Type cast error fixed
* Missing macro in win32 daemon; Replaced MIN in commented code with std::min
* Update libtransmission/tr-getopt.cc
Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>
* Update libtransmission/file-posix.cc
Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>
* Update tests/libtransmission/copy-test.cc
Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>
* Update libtransmission/peer-mgr.cc
Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>
* Strlen returns size_t, remove cast
Co-authored-by: Charles Kerr <charles@charleskerr.com>
Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>
Simple change to silence warnings, changes the offending enums to be
constexprs. There is still more cleanup work to update other enums;
this just addresses the ones causing compiler warnings
* fix: dead-store asssignment warning in file-posix.
This also extracts the different per-platform preallocation methods into
their own standalone functions for readability and clarity.
* refactor: tr_quickfindFirstK --> std::partial_sort
Remove `tr_quickfindFirstK()` and use `std::partial_sort()` instead.
Co-authored-by: Mike Gelfand <mikedld@mikedld.com>
We know what strings are passed into tr_strip_positional_args(). Instead
of using dynamic allocation, use a fixed-size array that's big enough to
fit the strings that we have.
Port libtransmission to C++. This PR doesn't refactor everything to c++.
Its code changes are only what was necessary to compile and link as c++.
See libtransmission/README.md for details on how to submit modernization
patches!
Co-authored-by: Mike Gelfand <mikedld@mikedld.com>
* Switch to a standalone ARC4 implementation
This frees us from expecting it being provided by one of the crypto
libraries we support, all of which deprecated and/or removed it at this
point.
Fixes: #1103Fixes: #1777
* Suppress lgtm warnings about RC4 being weak (we don't care)
The previous code had some redundant calculations, e.g. calling
tr_torrentGetActivity() a couple of times per torrent, once in
tr_sessionCountQueueFreeSlots() and once in tr_torrentIsStalled().
Only one call is necessary.
tr_sessionCountQueueFreeSlots() used to keep iterating through all
torrents even if the number of free slots had already been decremented
to zero, even though further iteration does not change the zero return
value :) This PR checks the return value while looping to prevent this.
* perf: if logs are disabled, don't build log names
handshake.c and peer-io.c call tr_peerIoGetAddrStr() to build a name for
passing to tr_logAddDeepNamed(). Since tr_peerIoGetAddrStr() isn't free,
make sure deep logging is enabled before building the name.
* perf: prioritize announces based on scrape stats
This change is to improve responsiveness when starting a large batch of
torrents, e.g. when starting up a seedbox, but is also generally useful.
First, try to scrape as many torrents as as quickly as possible, giving
preference to that even over announces. Thanks to multiscrape we can run
through scrapes an order of magnitude faster than announces. Then scrape
responses tell us which swarms have leechers and we can prioritize those
torrents' announces.
Second, increase how many scrapes and announces we start at a time. This
limit probably hasn't been needed since 2da97b25 and by scraping faster,
the sooner we'll know which torrents to announce first.
* chore: remove printf() tracer
* perf: use scrape to know when a swarm is all-seeds
For private torrents, the tracker is the sole source of peers. So when a
private torrent's tracker responds that there are 0 leechers, we can use
that information to mark the entire swarm as seeders and to not initiate
connections to those peers if we are seeding. This can help seedboxes to
more efficiently pick which swarms to prioritize.
This strategy is not used on public torrents, since new seeder-to-seeder
connections can be useful there for pex.
This PR changes tr_peerMgrAddPex() to (1) remove tr_atom.seedProbability
field (which was not as robust as intended) and (2) add batches of peers
instead of a single peer.
* fix: only use all-seeds check for private torrents
tr_peerMgrStartTorrent() is called once per torrent on startup, so this
can be expensive if the user has a lot of torrents.
Instead, enqueue a pending rechoke that will happen on idle. This way,
all the added torrents can be handled by a single rechoke call.
* perf: lookup tables for faster torrent searching.
tr_torrentFindFromId(), tr_torrentFindFromHashString(), and
tr_torrentFindFromHash() are now O(log N) instead of O(N) where
N is the number of torrents.
* build: fix clang-tidy warning
error: integer to pointer cast pessimizes optimization opportunities
[performance-no-int-to-ptr,-warnings-as-errors] from TR_BAD_SYS_FILE
which expands to INVALID_HANDLE_VALUE ((HANDLE)(LONG_PTR)-1)
I couldn't find infos about the "status" field of "torrent-get" in this file or on the web, so I had to look in the source code to find it, and I don't think everyone will do that. So it would be nice for this file to contain details about status
Co-authored-by: Charles Kerr <charles@charleskerr.com>
* Add instruction in README.md to config a release build.
* Use RelWithDebInfo instead of Release in README.md
Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>
