* Add in-kernel copying support for Linux (sendfile64(2), copy_file_range(2)), FreeBSD 13 (copy_file_range(2)), MacOS (copyfile(2)), and Windows (CopyFileExA).
* Fix macro name USE_COPY_FILE_RANGE.
* Minor bugfixes for userspace fallback.
* Fix linux sendfile64 bugs.
* Remove some overzealous asserts.
* Allow transmission-test-copy to take an optional argument for an external reference file.
* Fix return value error of tr_sys_path_copy.
* Use COPYFILE_ALL for Macs without COPYFILE_CLONE.
* Add in-kernel file copying for several platforms.
Numerous operating systems now have support for copying files directly in the
kernel, which is generally more efficient than copying in a userspace read(2)/
write(2) loop. (This becomes particularly relevant for 4th gen PCI-E storage,
which approaches the latency of DRAM.) For Linux I use sendfile64(2), and, for
later kernels, copy_file_range(2). FreeBSD 13 will also support
copy_file_range(2). MacOS has copyfile(2), and Windows has CopyFileExA.
Operating systems lacking such a syscall continue to use the existing
read(2)/write(2) loop.
* Appease uncrustify.
* Appease uncrustify.
* copy-test: generate random content at run time.
* copy-test: Stylistic changes and more check()s.
* copy-test: files_are_identical should follow test idioms
* tr_sys_path_copy: numerous tweaks as requested by review.
* s/old file/source file; s/new file/destination file.
* tr_sys_path_copy: handle win32 wide characters in paths.
* Uncrustify.
* test-copy: Use non-string create_file_with_contents.
* tr_sys_path_copy: numerous fixes.
Per review: generate test file content at runtime; tidy use of check();
fix style; re-measure file sizes in the copy; define a macro when the
system does not provide it; use Unicode APIs on Windows; and fix
documentation.
* Updated as per comments.
* Rebase kernel-copy changes onto 3.0 with gtest.
* Undo irrelevant comment change.
* Fix syntax error.
* Use tr_malloc() instead of tr_valloc().
* Use EXPECT instead of TR_ASSERT in gtest.
* Add error handling.
* Acceptable coding style has changed again.
Now it's camelCase. Also use nullptr instead of NULL, etc.
* Fix east/west const.
Co-authored-by: Mike Gelfand <mikedld@users.noreply.github.com>
* fix: __attribute__(__printf__) warnings
* fix: implicit fallthrough warning
* fixup! fix: implicit fallthrough warning
* fix: disable warnings for 3rd party code
Since we want to leave upstream code as-is
* fixup! fix: disable warnings for 3rd party code
* fixup! fix: disable warnings for 3rd party code
* silence spurious alignment warning
Xrefs
Discussion: https://stackoverflow.com/a/35554349
Macro inspiration: 90ac46f710/f/src/util/util_safealign.h (_35)
* fixup! fix: disable warnings for 3rd party code
* fixup! fix: implicit fallthrough warning
* make uncrustify happy
* remove uncrustify-test.sh
that's probably off-topic for this PR
* fixup! fix: __attribute__(__printf__) warnings
* Update libtransmission/CMakeLists.txt
Co-Authored-By: ckerr <ckerr@github.com>
* fixup! silence spurious alignment warning
* use -w for DISABLE_WARNINGS in Clang
* refactor: fix libtransmission deprecation warnings
* fix: pthread_create's start_routine's return value
This was defined as `void` on non-Windows but should have been `void*`
* chore: uncrustify
* fix: add DISABLE_WARNINGS option for SunPro Studio
* fix "unused in lambda capture" warnings by clang++
* fix 'increases required alignment' warning
Caused from storing int16_t's in a char array.
* fix net.c 'increases required alignment' warning
The code passes in a `struct sockaddr_storage*` which is a padded struct
large enough for the necessary alignment. Unfortunately it was recast as
a `struct sockaddr*` which has less padding and a smaller alignment. The
warning occrred because of these differing alignments.
* make building quieter so warnings are more visible
* fixup! fix 'increases required alignment' warning
* Fix -Wcast-function-type warnings in GTK+ app code
https://gitlab.gnome.org/GNOME/gnome-terminal/issues/96 talks about both
the issue and its solution.
GCC 8's -Wcast-function-type, enabled by -Wextra, is problematic in glib
applications because it's idiomatic there to recast function signatures,
e.g. `g_slist_free(list, (GFunc)g_free, NULL);`.
Disabling the warning with pragmas causes "unrecognized pragma" warnings
on clang and older versions of gcc, and disabling the warning could miss
actual bugs. GCC defines `void (*)(void)` as a special case that matches
anything so we can silence warnings by double-casting through GCallback.
In the previous example, the warning is silenced by changing the code to
read `g_slist_free(list, (GFunc)(GCallback)g_free, NULL);`).
* fixup! fix "unused in lambda capture" warnings by clang++
* fixup! fix "unused in lambda capture" warnings by clang++
* fix two more libtransmission compiler warnings
* fix: in watchdir, use TR_ENABLE_ASSERTS not NDEBUG
This way all the qualifiers (`const`, `volatile`, `mutable`) are grouped
together, e.g. `T const* const x` vs. `const T* const x`. Also helps reading
types right-to-left, e.g. "constant pointer to constant T" vs. "constant
pointer to T which is constant".
There're places where manual intervention is still required as uncrustify
is not ideal (unfortunately), but at least one may rely on it to do the
right thing most of the time (e.g. when sending in a patch).
The style itself is quite different from what we had before but making it
uniform across all the codebase is the key. I also hope that it'll make the
code more readable (YMMV) and less sensitive to further changes.
Defer validity checks until path gets to the remote side, where they
actually make sense. Add simple checks for download directory path to
ensure it's not relative, since one cannot know what current working
directory of the remote process is.
Mike Gelfand