4 Commits

Author SHA1 Message Date
Patrick Steinhardt
50869da7e6 compat/posix: introduce writev(3p) wrapper
In a subsequent commit we're going to add the first caller to
writev(3p). Introduce a compatibility wrapper for this syscall that we
can use on systems that don't have this syscall.

The syscall exists on modern Unixes like Linux and macOS, and seemingly
even for NonStop according to [1]. It doesn't seem to exist on Windows
though.

[1]: http://nonstoptools.com/manuals/OSS-SystemCalls.pdf
[2]: https://www.gnu.org/software/gnulib/manual/html_node/writev.html

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2026-03-03 09:52:34 -08:00
René Scharfe
10bba537c4 compat: remove gitmkdtemp()
gitmkdtemp() has become a trivial wrapper around git_mkdtemp().  Remove
this now unnecessary layer of indirection.

Signed-off-by: René Scharfe <l.s.r@web.de>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-12-07 07:28:13 +09:00
Brad Smith
35ec1e2245 compat: fixes for header handling with OpenBSD / NetBSD
Handle OpenBSD and NetBSD as FreeBSD / DragonFly are. OpenBSD would
need _XOPEN_SOURCE to be set to 700. Its simpler to just not set
_XOPEN_SOURCE.

    CC strbuf.o
strbuf.c:645:6: warning: call to undeclared function 'getdelim'; ISO C99 and later do not support implicit function declarations [-Wimplicit-function-declaration]
        r = getdelim(&sb->buf, &sb->alloc, term, fp);
            ^
1 warning generated.

Signed-off-by: Brad Smith <brad@comstyle.com>
Reviewed-by: Collin Funk <collin.funk1@gmail.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-06-03 07:36:17 -07:00
Patrick Steinhardt
75a044f748 git-compat-util.h: split out POSIX-emulating bits
The "git-compat-util.h" header is a treasure trove of various bits and
pieces used throughout the project. It basically mixes two different
things into one:

  - Providing a POSIX-like interface even on platforms that aren't
    POSIX-compliant.

  - Providing low-level functionality that is specific to Git.

This intermixing is a bit of a problem for the reftable library as we
don't want to recreate the POSIX-like interface there. But neither do we
want to pull in the Git-specific functionality, as it is otherwise quite
easy to start depending on the Git codebase again.

Split out a new header "compat/posix.h" that only contains the bits and
pieces relevant for the emulation of POSIX, which we will start using in
the next commit.

Signed-off-by: Patrick Steinhardt <ps@pks.im>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
2025-02-18 10:55:40 -08:00