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authorVicent Marti <tanoku@gmail.com>2011-07-09 02:10:46 +0200
committerVicent Marti <tanoku@gmail.com>2011-07-09 02:40:16 +0200
commitafeecf4f262b74270368ef8a70c582ea9d5a18e8 (patch)
treec078ee522e3d9f7bf01fe7e85f5baa7f41dacde4 /src/oid.c
parent2fc78e700cc4684c1e5899d7a4a619da1e3e3679 (diff)
downloadlibgit2-afeecf4f262b74270368ef8a70c582ea9d5a18e8.tar.gz
odb: Direct writes are back
DIRECT WRITES ARE BACK AND FASTER THAN EVER. The streaming writer to the ODB was an overkill for the smaller objects like Commit and Tags; most of the streaming logic was taking too long. This commit makes Commits, Tags and Trees to be built-up in memory, and then written to disk in 2 pushes (header + data), instead of streaming everything. This is *always* faster, even for big files (since the git_filebuf class still does streaming writes when the memory cache overflows). This is also a gazillion lines of code smaller, because we don't have to precompute the final size of the object before starting the stream (this was kind of defeating the point of streaming, anyway). Blobs are still written with full streaming instead of loading them in memory, since this is still the fastest way. A new `git_buf` class has been added. It's missing some features, but it'll get there.
Diffstat (limited to 'src/oid.c')
-rw-r--r--src/oid.c10
1 files changed, 10 insertions, 0 deletions
diff --git a/src/oid.c b/src/oid.c
index 2348d1434..8274cb55c 100644
--- a/src/oid.c
+++ b/src/oid.c
@@ -175,6 +175,16 @@ int git__write_oid(git_odb_stream *stream, const char *header, const git_oid *oi
return GIT_SUCCESS;
}
+void git_oid__writebuf(git_buf *buf, const char *header, const git_oid *oid)
+{
+ char hex_oid[GIT_OID_HEXSZ];
+
+ git_oid_fmt(hex_oid, oid);
+ git_buf_puts(buf, header);
+ git_buf_put(buf, hex_oid, GIT_OID_HEXSZ);
+ git_buf_putc(buf, '\n');
+}
+
void git_oid_fromraw(git_oid *out, const unsigned char *raw)
{
memcpy(out->id, raw, sizeof(out->id));