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03c0938f
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2020-08-25T06:13:38
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Avoid using atomics in pool.c
Instead, globally initialize the system page size.
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abfdb8a6
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2020-05-23T10:15:37
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git_pool_init: return an int
Let `git_pool_init` return an int so that it could fail.
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d103f008
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2019-05-21T13:44:47
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pool: use `size_t` for sizes
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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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844f5b20
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2016-08-05T10:57:13
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pool: provide macro to statically initialize git_pool
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93e16642
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2016-02-26T12:51:13
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Fixed typo in one of the ifndef's in pool.h used to enable/disable debug mode
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f1260e03
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2016-02-19T09:13:40
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Remove unnecessary ifdef in pool.h
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ed0571f8
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2016-01-12T16:08:38
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Add a new build flag to disable the pool allocator and pass all git_pool_malloc calls straight to git__malloc
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1b4449b4
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2015-10-28T10:53:03
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pool: fix documentation
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340b15b7
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2015-10-28T14:31:09
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pool: update comment
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d3416dfe
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2015-10-28T10:50:25
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pool: Dot not assume mallocs are zeroed out
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1e5e02b4
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2015-10-27T17:26:04
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pool: Simplify implementation
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62e562f9
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2014-05-18T07:54:41
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Fix compiler warning (git_off_t cast to size_t).
Use size_t for page size, instead of long. Check result of sysconf.
Use size_t for page offset so no cast to size_t (second arg to p_mmap).
Use mod instead div/mult pair, so no cast to size_t is necessary.
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0c468633
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2013-03-14T13:40:15
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Improved tree iterator internals
This updates the tree iterator internals to be more efficient.
The tree_iterator_entry objects are now kept as pointers that are
allocated from a git_pool, so that we may use git__tsort_r for
sorting (which is better than qsort, given that the tree is
likely mostly ordered already).
Those tree_iterator_entry objects now keep direct pointers to the
data they refer to instead of keeping indirect index values. This
simplifies a lot of the data structure traversal code.
This also adds bsearch to find the start item position for range-
limited tree iterators, and is more explicit about using
git_path_cmp instead of reimplementing it. The git_path_cmp
changed a bit to make it easier for tree_iterators to use it (but
it was barely being used previously, so not a big deal).
This adds a git_pool_free_array function that efficiently frees a
list of pool allocated pointers (which the tree_iterator keeps).
Also, added new tests for the git_pool free list functionality
that was not previously being tested (or used).
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359fc2d2
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2013-01-08T17:07:25
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update copyrights
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f335ecd6
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2012-08-30T14:24:16
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Diff iterators
This refactors the diff output code so that an iterator object
can be used to traverse and generate the diffs, instead of just
the `foreach()` style with callbacks. The code has been rearranged
so that the two styles can still share most functions.
This also replaces `GIT_REVWALKOVER` with `GIT_ITEROVER` and uses
that as a common error code for marking the end of iteration when
using a iterator style of object.
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71d27358
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2012-07-19T10:23:45
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Fix bug with merging diffs with null options
A diff that is created with a NULL options parameter could result
in a NULL prefix string, but diff merge was unconditionally
strdup'ing it. I added a test to replicate the issue and then a
new method that does the right thing with NULL values.
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da3b391c
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2012-04-18T10:57:08
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Convert revwalk to use git_pool
This removes the custom paged allocator from revwalk and
replaces it with a `git_pool`.
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19fa2bc1
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2012-04-17T15:12:50
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Convert attrs and diffs to use string pools
This converts the git attr related code (including ignores) and
the git diff related code (and implicitly the status code) to use
`git_pools` for storing strings. This reduces the number of small
blocks allocated dramatically.
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2bc8fa02
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2012-04-17T10:14:24
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Implement git_pool paged memory allocator
This adds a `git_pool` object that can do simple paged memory
allocation with free for the entire pool at once. Using this,
you can replace many small allocations with large blocks that
can then cheaply be doled out in small pieces. This is best
used when you plan to free the small blocks all at once - for
example, if they represent the parsed state from a file or data
stream that are either all kept or all discarded.
There are two real patterns of usage for `git_pools`: either
for "string" allocation, where the item size is a single byte
and you end up just packing the allocations in together, or for
"fixed size" allocation where you are allocating a large object
(e.g. a `git_oid`) and you generally just allocation single
objects that can be tightly packed. Of course, you can use it
for other things, but those two cases are the easiest.
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