kmx git

Commit	Date	Message
08f28ff5	2020-07-10T08:57:05	alloc: set up an allocator that fails before library init We require the library to be initialized with git_libgit2_init before it is functional. However, if a user tries to uses the library without doing so - as they might when getting started with the library for the first time - we will likely crash. This commit introduces some guard rails - now instead of having _no_ allocator by default, we'll have an allocator that always fails, and never tries to set an error message (since the thread-local state is set up by git_libgit2_init). We've modified the error retrieval function to (try to) ensure that the library has been initialized before getting the thread-local error message. (Unfortunately, we cannot determine if the thread local storage has actually been configured, this does require initialization by git_libgit2_init. But a naive attempt should be good enough for most cases.)
8aed4629	2020-07-12T18:43:22	cmake: rename MSVC_CRTDBG to WIN32_LEAKCHECK
51825c4f	2020-07-12T18:18:12	alloc: rename the win32 leakcheck allocator The win32 leakchecking system is now named win32_leakcheck. Update the allocator to match.
31654a34	2020-07-12T18:07:10	win32: consolidate leak checking initialization Move leak check initialization into git_win32_leakcheck_global_init, and call it on library initialization.
cb4b3bdf	2020-07-12T17:49:42	win32: "crtdbg" is now "leakcheck" msvc crtdbg is a mouthfull that is not particularly indicative of what it does. Let's rename it to "win32 leakcheck".
e316b0d3	2020-05-15T11:47:09	runtime: move init/shutdown into the "runtime" Provide a mechanism for system components to register for initialization and shutdown of the libgit2 runtime.
521aa8c1	2020-05-12T13:21:26	win32: teach the allocator to deal with crtdbg Move the MSVC C runtime debugging bits into the allocator's global init function.
48727e5d	2019-02-21T12:27:42	allocators: extract crtdbg allocator into its own file The Windows-specific crtdbg allocator is currently mixed into the crtdbg stacktracing compilation unit, making it harder to find than necessary. Extract it and move it into the new "allocators/" subdirectory to improve discoverability. This change means that the crtdbg compilation unit is now compiled unconditionally, whereas it has previously only been compiled on Windows platforms. Thus we now have additional guards around the code so that it will only be compiled if GIT_MSVC_CRTDBG is defined. This also allows us to move over the fallback-implementation of `git_win32_crtdbg_init_allocator` into the same compilation unit.
b63396b7	2019-02-21T12:13:59	allocators: move standard allocator into subdirectory Right now, our two allocator implementations are scattered around the tree in "stdalloc.h" and "win32/w32_crtdbg_stacktrace.h". Start grouping them together in a single directory "allocators/", similar to how e.g. our streams are organized.
f673e232	2018-12-27T13:47:34	git_error: use new names in internal APIs and usage Move to the `git_error` name in the internal API for error-related functions.
305e801a	2018-10-21T09:52:32	util: allow callers to reset custom allocators Provide a utility to reset custom allocators back to their default. This is particularly useful for testing.
19007b19	2018-07-15T17:30:04	alloc: don't overwrite allocator during init if set If the allocator has been set before we the library is initialised, we would replace that setting with the standard allocator contrary to the user's wishes.
74b7ddbf	2018-03-16T10:14:50	settings: allow swapping out memory allocator Tie in the newly created infrastructure for swapping out memory allocators into our settings code. A user can now simply use the new option "GIT_OPT_SET_ALLOCATOR" with `git_libgit2_opts`, passing in an already initialized allocator structure as vararg.
9865cd16	2018-03-20T14:23:49	alloc: make memory allocators use function pointers Currently, our memory allocators are being redirected to the correct implementation at compile time by simply using macros. In order to make them swappable at runtime, this commit reshuffles that by instead making use of a global "git_allocator" structure, whose pointers are set up to reference the allocator functions. Like this, it becomes easy to swap out allocators by simply setting these function pointers. In order to initialize a "git_allocator", our provided allocators "stdalloc" and "crtdbg" both provide an init function. This is being called to initialize a passed in allocator struct and set up its members correctly. No support is yet included to enable users of libgit2 to switch out the memory allocator at a global level.

08f28ff5

2020-07-10T08:57:05

alloc: set up an allocator that fails before library init We require the library to be initialized with git_libgit2_init before it is functional. However, if a user tries to uses the library without doing so - as they might when getting started with the library for the first time - we will likely crash. This commit introduces some guard rails - now instead of having _no_ allocator by default, we'll have an allocator that always fails, and never tries to set an error message (since the thread-local state is set up by git_libgit2_init). We've modified the error retrieval function to (try to) ensure that the library has been initialized before getting the thread-local error message. (Unfortunately, we cannot determine if the thread local storage has actually been configured, this does require initialization by git_libgit2_init. But a naive attempt should be good enough for most cases.)

8aed4629

2020-07-12T18:43:22

cmake: rename MSVC_CRTDBG to WIN32_LEAKCHECK

51825c4f

2020-07-12T18:18:12

alloc: rename the win32 leakcheck allocator The win32 leakchecking system is now named win32_leakcheck. Update the allocator to match.

31654a34

2020-07-12T18:07:10

win32: consolidate leak checking initialization Move leak check initialization into git_win32_leakcheck_global_init, and call it on library initialization.

cb4b3bdf

2020-07-12T17:49:42

win32: "crtdbg" is now "leakcheck" msvc crtdbg is a mouthfull that is not particularly indicative of what it does. Let's rename it to "win32 leakcheck".

e316b0d3

2020-05-15T11:47:09

runtime: move init/shutdown into the "runtime" Provide a mechanism for system components to register for initialization and shutdown of the libgit2 runtime.

521aa8c1

2020-05-12T13:21:26

win32: teach the allocator to deal with crtdbg Move the MSVC C runtime debugging bits into the allocator's global init function.

48727e5d

2019-02-21T12:27:42

allocators: extract crtdbg allocator into its own file The Windows-specific crtdbg allocator is currently mixed into the crtdbg stacktracing compilation unit, making it harder to find than necessary. Extract it and move it into the new "allocators/" subdirectory to improve discoverability. This change means that the crtdbg compilation unit is now compiled unconditionally, whereas it has previously only been compiled on Windows platforms. Thus we now have additional guards around the code so that it will only be compiled if GIT_MSVC_CRTDBG is defined. This also allows us to move over the fallback-implementation of `git_win32_crtdbg_init_allocator` into the same compilation unit.

b63396b7

2019-02-21T12:13:59

allocators: move standard allocator into subdirectory Right now, our two allocator implementations are scattered around the tree in "stdalloc.h" and "win32/w32_crtdbg_stacktrace.h". Start grouping them together in a single directory "allocators/", similar to how e.g. our streams are organized.

f673e232

2018-12-27T13:47:34

git_error: use new names in internal APIs and usage Move to the `git_error` name in the internal API for error-related functions.

305e801a

2018-10-21T09:52:32

util: allow callers to reset custom allocators Provide a utility to reset custom allocators back to their default. This is particularly useful for testing.

19007b19

2018-07-15T17:30:04

alloc: don't overwrite allocator during init if set If the allocator has been set before we the library is initialised, we would replace that setting with the standard allocator contrary to the user's wishes.

74b7ddbf

2018-03-16T10:14:50

settings: allow swapping out memory allocator Tie in the newly created infrastructure for swapping out memory allocators into our settings code. A user can now simply use the new option "GIT_OPT_SET_ALLOCATOR" with `git_libgit2_opts`, passing in an already initialized allocator structure as vararg.

9865cd16

2018-03-20T14:23:49

alloc: make memory allocators use function pointers Currently, our memory allocators are being redirected to the correct implementation at compile time by simply using macros. In order to make them swappable at runtime, this commit reshuffles that by instead making use of a global "git_allocator" structure, whose pointers are set up to reference the allocator functions. Like this, it becomes easy to swap out allocators by simply setting these function pointers. In order to initialize a "git_allocator", our provided allocators "stdalloc" and "crtdbg" both provide an init function. This is being called to initialize a passed in allocator struct and set up its members correctly. No support is yet included to enable users of libgit2 to switch out the memory allocator at a global level.

thodg/libgit2/src/alloc.c

src/alloc.c

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