[PATCH] compat: introduce stat_to_kilobytes
From: Junio C Hamano <hidden>
Date: 2016-06-15 22:45:10
Some platforms do not have st_blocks member in "struct stat"; mingw already emulates it by rounding it up to closest 512-byte blocks (even though it could overcount when a file has holes). The reason to use the member is only to figure out how many kilobytes the file occupies on-disk, so give a helper in git-compat-util.h to help these platforms. Signed-off-by: Junio C Hamano <redacted> --- * I suspect you may be better off building on top of something like this. The comment before "struct mingw_stat" suggests that the only reason this compatiblity definition exists is to add st_blocks member, so I suspect we could remove the definition and simplify the compatibility layer a lot more, but I do not know MinGW, so I am CC'ing j6t here. Makefile | 4 ++++ builtin-count-objects.c | 4 ++-- compat/mingw.c | 8 -------- compat/mingw.h | 1 - git-compat-util.h | 6 ++++++ 5 files changed, 12 insertions(+), 11 deletions(-)
diff --git a/Makefile b/Makefile
index 53ab4b5..8f69f16 100644
--- a/Makefile
+++ b/Makefile@@ -124,6 +124,9 @@ all:: # Define USE_STDEV below if you want git to care about the underlying device # change being considered an inode change from the update-index perspective. # +# Define NO_ST_BLOCKS_IN_STRUCT_STAT if your platform does not have st_blocks +# field that counts the on-disk footprint in 512-byte blocks. +# # Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8 # # Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72.
@@ -749,6 +752,7 @@ ifneq (,$(findstring MINGW,$(uname_S))) NO_SVN_TESTS = YesPlease NO_PERL_MAKEMAKER = YesPlease NO_POSIX_ONLY_PROGRAMS = YesPlease + NO_ST_BLOCKS_IN_STRUCT_STAT = YesPlease COMPAT_CFLAGS += -D__USE_MINGW_ACCESS -DNOGDI -Icompat COMPAT_CFLAGS += -DSNPRINTF_SIZE_CORR=1 COMPAT_CFLAGS += -DSTRIP_EXTENSION=\".exe\"
diff --git a/builtin-count-objects.c b/builtin-count-objects.c
index 91b5487..07ab0a0 100644
--- a/builtin-count-objects.c
+++ b/builtin-count-objects.c@@ -43,7 +43,7 @@ static void count_objects(DIR *d, char *path, int len, int verbose, if (lstat(path, &st) || !S_ISREG(st.st_mode)) bad = 1; else - (*loose_size) += xsize_t(st.st_blocks); + (*loose_size) += xsize_t(stat_to_kilobytes(st)); } if (bad) { if (verbose) {
@@ -115,7 +115,7 @@ int cmd_count_objects(int argc, const char **argv, const char *prefix) num_pack++; } printf("count: %lu\n", loose); - printf("size: %lu\n", loose_size / 2); + printf("size: %lu\n", loose_size); printf("in-pack: %lu\n", packed); printf("packs: %lu\n", num_pack); printf("prune-packable: %lu\n", packed_loose);
diff --git a/compat/mingw.c b/compat/mingw.c
index 772cad5..798fb61 100644
--- a/compat/mingw.c
+++ b/compat/mingw.c@@ -31,11 +31,6 @@ static inline time_t filetime_to_time_t(const FILETIME *ft) return (time_t)winTime; } -static inline size_t size_to_blocks(size_t s) -{ - return (s+511)/512; -} - extern int _getdrive( void ); /* We keep the do_lstat code in a separate function to avoid recursion. * When a path ends with a slash, the stat will fail with ENOENT. In
@@ -59,7 +54,6 @@ static int do_lstat(const char *file_name, struct stat *buf) buf->st_uid = 0; buf->st_mode = fMode; buf->st_size = fdata.nFileSizeLow; /* Can't use nFileSizeHigh, since it's not a stat64 */ - buf->st_blocks = size_to_blocks(buf->st_size); buf->st_dev = _getdrive() - 1; buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime)); buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
@@ -142,7 +136,6 @@ int mingw_fstat(int fd, struct mingw_stat *buf) buf->st_uid = st.st_uid; buf->st_mode = st.st_mode; buf->st_size = st.st_size; - buf->st_blocks = size_to_blocks(buf->st_size); buf->st_dev = st.st_dev; buf->st_atime = st.st_atime; buf->st_mtime = st.st_mtime;
@@ -164,7 +157,6 @@ int mingw_fstat(int fd, struct mingw_stat *buf) buf->st_uid = 0; buf->st_mode = fMode; buf->st_size = fdata.nFileSizeLow; /* Can't use nFileSizeHigh, since it's not a stat64 */ - buf->st_blocks = size_to_blocks(buf->st_size); buf->st_dev = _getdrive() - 1; buf->st_atime = filetime_to_time_t(&(fdata.ftLastAccessTime)); buf->st_mtime = filetime_to_time_t(&(fdata.ftLastWriteTime));
diff --git a/compat/mingw.h b/compat/mingw.h
index a52e657..1472d59 100644
--- a/compat/mingw.h
+++ b/compat/mingw.h@@ -169,7 +169,6 @@ struct mingw_stat { time_t st_mtime, st_atime, st_ctime; unsigned st_dev, st_ino, st_uid, st_gid; size_t st_size; - size_t st_blocks; }; int mingw_lstat(const char *file_name, struct mingw_stat *buf); int mingw_fstat(int fd, struct mingw_stat *buf);
diff --git a/git-compat-util.h b/git-compat-util.h
index cf89cdf..8ef3a72 100644
--- a/git-compat-util.h
+++ b/git-compat-util.h@@ -192,6 +192,12 @@ extern int git_munmap(void *start, size_t length); #endif /* NO_MMAP */ +#ifdef NO_ST_BLOCKS_IN_STRUCT_STAT +#define stat_to_kilobytes(st) ((((st).st_size+511) / 512) / 2) +#else +#define stat_to_kilobytes(st) ((st).st_blocks / 2) +#endif + #define DEFAULT_PACKED_GIT_LIMIT \ ((1024L * 1024L) * (sizeof(void*) >= 8 ? 8192 : 256))
--
1.6.0.rc3.22.g053f