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b932ef5b
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2011-03-21T19:44:43
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Fix MSVC warnings when building threads
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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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bbcc7ffc
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2011-03-15T21:04:41
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Add proper threading support to libgit2
We now depend on libpthread on all Unix platforms (should be installed
by default) and use a simple wrapper for Windows threads under Win32.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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3ecc8b5e
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2011-02-18T00:08:34
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Fix refcounting initialization
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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348c7335
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2011-02-17T21:32:00
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Improve the performance when writing Index files
In response to issue #60 (git_index_write really slow), the write_index
function has been rewritten to improve its performance -- it should now
be in par with the performance of git.git.
On top of that, if Posix Threads are available when compiling libgit2, a
new threaded writing system will be used (3 separate threads take care
of solving byte-endianness, hashing the contents of the index and
writing to disk, respectively). For very long Index files, this method
is up to 3x times faster than git.git.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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e035685f
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2010-12-23T00:44:41
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Revert "Properly export all external symbols in Win32"
It is not a good idea to export these internal symbols now that they are
not required to run the unit tests.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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2a18a792
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2010-12-22T22:43:39
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Properly export all external symbols in Win32
Some external functions were not being exported because they were using
the 'extern' keyword instead of the generic GIT_EXTERN() macro.
Signed-off-by: Vicent Marti <tanoku@gmail.com>
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3e0fb8fb
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2009-06-04T17:12:59
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thread-utils.h: Avoid using a non-standard C construct
In particular, in standard C, a struct or union must have at
least one member declared (ie. structs and unions cannot be
empty). Some compilers allow empty structs as an extension
and won't even issue a warning unless asked for it (eg, gcc
requires -pedantic). Some compilers allow empty structs as
an extension and will only treat it as an error if asked for
strict checking (eg Digital-Mars with -A). Some compilers
simply treat it as an error (eg MS Visual C/C++).
Signed-off-by: Ramsay Jones <ramsay@ramsay1.demon.co.uk>
Signed-off-by: Andreas Ericsson <ae@op5.se>
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51eb2f90
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2009-01-02T21:48:40
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Change the use of asm/atomic.h to require -DGIT_HAS_ASM_ATOMIC
These headers aren't always available; they typically come from the
Linux kernel, but aren't supposed to be exported into the userspace
/usr/include. Modern kernels won't install these and some distros
rm -rf the directory post kernel header install.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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11bb049b
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2009-01-02T21:41:52
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Fix pthread_mutex based gitrc_dec
The function should return true only when the counter drops to 0.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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028ef0de
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2008-12-31T13:20:21
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Add a mutex and atomic counter abstraction and implementations
These abstractions can be used to implement an efficient resource
reference counter and simple mutual exclusion. On pthreads we use
pthread_mutex_t, except when we are also on glibc and can directly
use its asm/atomic.h definitions.
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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36f0f61f
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2008-11-18T19:06:25
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Add compiler/platform agnostic thread-local storage
It doesn't cover all cases, but we can work on those as
we go along. For now, gcc, MSVC++, Intel C/C++, IBM XL C/C++,
Sun Studio C/C++ and Borland C++ Builder are the supported
compilers (although we boldly assume that they all are of
a recent enough version to support thread-local storage).
This is intended to be used in upcoming patches that implement
graceful (but TLS-dependant) error-handling in the library.
As an added bonus, we also bring the online_cpus() function
from git.git to detect the number of usable cpu's.
Signed-off-by: Andreas Ericsson <ae@op5.se>
Signed-off-by: Shawn O. Pearce <spearce@spearce.org>
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