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authorFilipe Cabecinhas <filcab@gmail.com>2013-05-10 15:24:57 -0700
committerJunio C Hamano <gitster@pobox.com>2013-05-17 12:16:30 -0700
commit6c642a878688adf46b226903858b53e2d31ac5c3 (patch)
tree8fc188945aa2789a37089c4322c99bacbe4ccaca /git-compat-util.h
parent239222f587ed06f96d90dd71c66d80a2b1e3dc9f (diff)
downloadgit-6c642a878688adf46b226903858b53e2d31ac5c3.tar.gz
compate/clipped-write.c: large write(2) fails on Mac OS X/XNU
Due to a bug in the Darwin kernel, write(2) calls have a maximum size of INT_MAX bytes. Introduce a new compat function, clipped_write(), that only writes at most INT_MAX bytes and returns the number of bytes written, as a substitute for write(2), and allow platforms that need this to enable it from the build mechanism with NEEDS_CLIPPED_WRITE. Set it for Mac OS X by default. It may be necessary to include this function on Windows, too. Signed-off-by: Filipe Cabecinhas <filcab+git@gmail.com> Signed-off-by: Junio C Hamano <gitster@pobox.com>
Diffstat (limited to 'git-compat-util.h')
-rw-r--r--git-compat-util.h5
1 files changed, 5 insertions, 0 deletions
diff --git a/git-compat-util.h b/git-compat-util.h
index b636e0dd0c..3144b8da1e 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h
@@ -181,6 +181,11 @@ typedef unsigned long uintptr_t;
#define probe_utf8_pathname_composition(a,b)
#endif
+#ifdef NEEDS_CLIPPED_WRITE
+ssize_t clipped_write(int fildes, const void *buf, size_t nbyte);
+#define write(x,y,z) clipped_write((x),(y),(z))
+#endif
+
#ifdef MKDIR_WO_TRAILING_SLASH
#define mkdir(a,b) compat_mkdir_wo_trailing_slash((a),(b))
extern int compat_mkdir_wo_trailing_slash(const char*, mode_t);