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path: root/src/idxmap.c
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* idxmap: safely cast down to khiter_tEdward Thomson2019-06-241-2/+4
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* idxmap: remove legacy low-level interfacePatrick Steinhardt2019-02-151-57/+10
| | | | | | Remove the low-level interface that was exposing implementation details of `git_idxmap` to callers. From now on, only the high-level functions shall be used to retrieve or modify values of a map. Adjust remaining existing callers.
* maps: provide return value when deleting entriesPatrick Steinhardt2019-02-151-13/+18
| | | | | | | | | | Currently, the delete functions of maps do not provide a return value. Like this, it is impossible to tell whether the entry has really been deleted or not. Change the implementation to provide either a return value of zero if the entry has been successfully deleted or `GIT_ENOTFOUND` if the key could not be found. Convert callers to the `delete_at` functions to instead use this higher-level interface.
* idxmap: have `resize` functions return proper error codePatrick Steinhardt2019-02-151-10/+18
| | | | | | | | | | The currently existing function `git_idxmap_resize` and `git_idxmap_icase_resize` do not return any error codes at all due to their previous implementation making use of a macro. Due to that, it is impossible to see whether the resize operation might have failed due to an out-of-memory situation. Fix this by providing a proper error code. Adjust callers to make use of it.
* idxmap: introduce high-level setter for key/value pairsPatrick Steinhardt2019-02-151-0/+34
| | | | | | | | | | | | Currently, one would use the function `git_idxmap_insert` to insert key/value pairs into a map. This function has historically been a macro, which is why its syntax is kind of weird: instead of returning an error code directly, it instead has to be passed a pointer to where the return value shall be stored. This does not match libgit2's common idiom of directly returning error codes. Introduce a new function `git_idxmap_set`, which takes as parameters the map, key and value and directly returns an error code. Convert all callers of `git_idxmap_insert` to make use of it.
* idxmap: introduce high-level getter for valuesPatrick Steinhardt2019-02-151-0/+28
| | | | | | | | | | | | | | The current way of looking up an entry from a map is tightly coupled with the map implementation, as one first has to look up the index of the key and then retrieve the associated value by using the index. As a caller, you usually do not care about any indices at all, though, so this is more complicated than really necessary. Furthermore, it invites for errors to happen if the correct error checking sequence is not being followed. Introduce new high-level functions `git_idxmap_get` and `git_idxmap_icase_get` that take a map and a key and return a pointer to the associated value if such a key exists. Otherwise, a `NULL` pointer is returned. Adjust all callers that can trivially be converted.
* maps: use uniform lifecycle management functionsPatrick Steinhardt2019-02-151-30/+26
| | | | | | | | | | | | | | | | Currently, the lifecycle functions for maps (allocation, deallocation, resize) are not named in a uniform way and do not have a uniform function signature. Rename the functions to fix that, and stick to libgit2's naming scheme of saying `git_foo_new`. This results in the following new interface for allocation: - `int git_<t>map_new(git_<t>map **out)` to allocate a new map, returning an error code if we ran out of memory - `void git_<t>map_free(git_<t>map *map)` to free a map - `void git_<t>map_clear(git<t>map *map)` to remove all entries from a map This commit also fixes all existing callers.
* git_error: use new names in internal APIs and usageEdward Thomson2019-01-221-2/+2
| | | | | Move to the `git_error` name in the internal API for error-related functions.
* index: use new enum and structure namesEdward Thomson2018-12-011-3/+3
| | | | Use the new-style index names throughout our own codebase.
* khash: move khash include into implementation filesPatrick Steinhardt2018-11-281-0/+20
| | | | | | | | | | | | | The current map implementations directly include the "khash.h" headers into their own headers to make available a set of static functions, defines et cetera. Besides leaking the complete khash namespace into files wherever khashes are used, this also triggers Clang's -Wunused-function warnings when some of the static functions are not being used at all. Fix the issue by moving the includes into the respective map implementation files. Add forward declares for all the map types to make them known.
* map: remove `*map_free` macrosPatrick Steinhardt2017-03-201-1/+1
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The `map_free` functions were not implemented as functions but instead as macros which also set the map to NULL. While this is most certainly sensible in most cases, we should prefer the more obvious behavior, namingly leaving the map pointer intact. Furthermore, this macro has been refactored incorrectly during the map-refactorings: the two statements are not actually grouped together by a `do { ... } while (0)` block, as it is required for macros to match the behavior of functions more closely. This has led to at least one subtle nesting error in `pack-objects.c`. The following code block ``` if (pb->object_ix) git_oidmap_free(pb->object_ix); ``` would be expanded to ``` if (pb->object_ix) git_oidmap__free(pb->object_ix); pb->object_ix = NULL; ``` which is not what one woudl expect. While it is not a bug here as it would simply become a no-op, the wrong implementation could lead to bugs in other occasions. Fix this by simply removing the macro altogether and replacing it with real function calls. This leaves the burden of setting the pointer to NULL afterwards to the caller, but this is actually expected and behaves like other `free` functions.
* idxmap: remove GIT__USE_IDXMAPPatrick Steinhardt2017-02-171-2/+14
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* idxmap: convert to use functions instead of macrosPatrick Steinhardt2017-02-171-0/+121