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0c7f49dd
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2017-06-30T13:39:01
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Make sure to always include "common.h" first
Next to including several files, our "common.h" header also declares
various macros which are then used throughout the project. As such, we
have to make sure to always include this file first in all
implementation files. Otherwise, we might encounter problems or even
silent behavioural differences due to macros or defines not being
defined as they should be. So in fact, our header and implementation
files should make sure to always include "common.h" first.
This commit does so by establishing a common include pattern. Header
files inside of "src" will now always include "common.h" as its first
other file, separated by a newline from all the other includes to make
it stand out as special. There are two cases for the implementation
files. If they do have a matching header file, they will always include
this one first, leading to "common.h" being transitively included as
first file. If they do not have a matching header file, they instead
include "common.h" as first file themselves.
This fixes the outlined problems and will become our standard practice
for header and source files inside of the "src/" from now on.
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63e914cb
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2017-01-25T14:05:24
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khash: avoid using `kh_size` directly
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6a211d7c
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2014-08-26T15:12:43
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Refactor git_cache to use an rwlock
This significantly reduces contention when many threads are trying to
read from the cache simultaneously.
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eb63fda2
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2013-04-25T11:52:17
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git_atomic_ssize for 64-bit atomics only on 64-bit platforms
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879458e7
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2013-04-24T15:52:33
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repo: Add `git_repository__cleanup`
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a2378ae4
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2013-04-23T20:42:29
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opts: Add getter for cached memory
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a14163a7
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2013-04-22T17:30:49
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cache: Shared meter for memory usage
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d8771592
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2013-04-22T17:04:52
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cache: Max cache size, and evict when the cache fills up
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78606263
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2013-04-15T00:05:44
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Add callback to git_objects_table
This adds create and free callback to the git_objects_table so
that more of the creation and destruction of objects can be table
driven instead of using switch statements. This also makes the
semantics of certain object creation functions consistent so that
we can make better use of function pointers. This also fixes a
theoretical error case where an object allocation fails and we
end up storing NULL into the cache.
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064236ca
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2013-04-03T23:39:42
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Per-object max size
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ee12272d
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2013-04-05T22:48:39
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Global option setters
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b12b72ea
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2013-04-12T12:44:51
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Add range checking around cache opts
Add a git_cache_set_max_object_size method that does more checking
around setting the max object size. Also add a git_cache_size to
read the number of objects currently in the cache. This makes it
easier to write tests.
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6b90e244
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2013-04-01T19:53:49
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Per-object filtering
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cf7850a4
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2013-04-03T23:09:54
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Duplicated type object
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8842c75f
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2013-04-03T22:30:07
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What has science done.
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c4e91d45
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2013-04-03T20:57:30
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Random eviction
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5df18424
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2013-04-01T19:38:23
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lol this worked first try wtf
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359fc2d2
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2013-01-08T17:07:25
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update copyrights
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5e0de328
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2012-02-13T17:10:24
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Update Copyright header
Signed-off-by: schu <schu-github@schulog.org>
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e4b4da14
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2012-01-27T18:28:02
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cache: Simplify locking mechanics
The object cache is mostly IO-bound, so it makes no sense to have a lock
per node.
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bb742ede
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2011-09-19T01:54:32
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Cleanup legal data
1. The license header is technically not valid if it doesn't have a
copyright signature.
2. The COPYING file has been updated with the different licenses used in
the project.
3. The full GPLv2 header in each file annoys me.
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7d74cd44
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2011-05-29T11:46:42
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Deleted unused method git_cached_object_match, since we do not explore the cache when searching objects from a short oid.
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53c0bd81
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2011-05-27T22:37:10
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Added error for ambiguous oid prefixes. Added methods to compare the first nth hexadecimal characters (i.e. packets of 4 bits) of OIDs.
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335d6c99
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2011-05-17T01:46:07
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cache: Drop cuckoo hashing
Now we use a simple closed-addressing cache. Cuckoo hashing was creating
too many issues with race conditions. Fuck that.
Let's see what happens performance wise, we may have to roll back or
come up with another way to implement an efficient multi-threaded cache.
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81201a4c
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2011-05-15T06:57:34
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Move cache.c to the new error handling
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72a3fe42
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2011-03-18T19:38:49
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I broke your bindings
Hey. Apologies in advance -- I broke your bindings.
This is a major commit that includes a long-overdue redesign of the
whole object-database structure. This is expected to be the last major
external API redesign of the library until the first non-alpha release.
Please get your bindings up to date with these changes. They will be
included in the next minor release. Sorry again!
Major features include:
- Real caching and refcounting on parsed objects
- Real caching and refcounting on objects read from the ODB
- Streaming writes & reads from the ODB
- Single-method writes for all object types
- The external API is now partially thread-safe
The speed increases are significant in all aspects, specially when
reading an object several times from the ODB (revwalking) and when
writing big objects to the ODB.
Here's a full changelog for the external API:
blob.h
------
- Remove `git_blob_new`
- Remove `git_blob_set_rawcontent`
- Remove `git_blob_set_rawcontent_fromfile`
- Rename `git_blob_writefile` -> `git_blob_create_fromfile`
- Change `git_blob_create_fromfile`:
The `path` argument is now relative to the repository's working dir
- Add `git_blob_create_frombuffer`
commit.h
--------
- Remove `git_commit_new`
- Remove `git_commit_add_parent`
- Remove `git_commit_set_message`
- Remove `git_commit_set_committer`
- Remove `git_commit_set_author`
- Remove `git_commit_set_tree`
- Add `git_commit_create`
- Add `git_commit_create_v`
- Add `git_commit_create_o`
- Add `git_commit_create_ov`
tag.h
-----
- Remove `git_tag_new`
- Remove `git_tag_set_target`
- Remove `git_tag_set_name`
- Remove `git_tag_set_tagger`
- Remove `git_tag_set_message`
- Add `git_tag_create`
- Add `git_tag_create_o`
tree.h
------
- Change `git_tree_entry_2object`:
New signature is `(git_object **object_out, git_repository *repo, git_tree_entry *entry)`
- Remove `git_tree_new`
- Remove `git_tree_add_entry`
- Remove `git_tree_remove_entry_byindex`
- Remove `git_tree_remove_entry_byname`
- Remove `git_tree_clearentries`
- Remove `git_tree_entry_set_id`
- Remove `git_tree_entry_set_name`
- Remove `git_tree_entry_set_attributes`
object.h
------------
- Remove `git_object_new
- Remove `git_object_write`
- Change `git_object_close`:
This method is now *mandatory*. Not closing an object causes a
memory leak.
odb.h
-----
- Remove type `git_rawobj`
- Remove `git_rawobj_close`
- Rename `git_rawobj_hash` -> `git_odb_hash`
- Change `git_odb_hash`:
New signature is `(git_oid *id, const void *data, size_t len, git_otype type)`
- Add type `git_odb_object`
- Add `git_odb_object_close`
- Change `git_odb_read`:
New signature is `(git_odb_object **out, git_odb *db, const git_oid *id)`
- Change `git_odb_read_header`:
New signature is `(size_t *len_p, git_otype *type_p, git_odb *db, const git_oid *id)`
- Remove `git_odb_write`
- Add `git_odb_open_wstream`
- Add `git_odb_open_rstream`
odb_backend.h
-------------
- Change type `git_odb_backend`:
New internal signatures are as follows
int (* read)(void **, size_t *, git_otype *, struct git_odb_backend *, const git_oid *)
int (* read_header)(size_t *, git_otype *, struct git_odb_backend *, const git_oid *)
int (* writestream)(struct git_odb_stream **, struct git_odb_backend *, size_t, git_otype)
int (* readstream)( struct git_odb_stream **, struct git_odb_backend *, const git_oid *)
- Add type `git_odb_stream`
- Add enum `git_odb_streammode`
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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bb3de0c4
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2011-03-16T21:35:51
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Thread safe cache
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