diff options
author | Junio C Hamano <gitster@pobox.com> | 2022-03-26 02:38:24 +0300 |
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committer | Junio C Hamano <gitster@pobox.com> | 2022-03-26 02:38:24 +0300 |
commit | eb804cd405618ef78b772072685c39392aea4ac1 (patch) | |
tree | c86dd22ade3bf93d03d9ac01c507c6254c8fee7a /cache.h | |
parent | a68dfadae5e95c7f255cf38c9efdcbc2e36d1931 (diff) | |
parent | b9f5d0358d2e882d47f496c1a5589f6cebc25578 (diff) |
Merge branch 'ns/core-fsyncmethod'
Replace core.fsyncObjectFiles with two new configuration variables,
core.fsync and core.fsyncMethod.
* ns/core-fsyncmethod:
core.fsync: documentation and user-friendly aggregate options
core.fsync: new option to harden the index
core.fsync: add configuration parsing
core.fsync: introduce granular fsync control infrastructure
core.fsyncmethod: add writeout-only mode
wrapper: make inclusion of Windows csprng header tightly scoped
Diffstat (limited to 'cache.h')
-rw-r--r-- | cache.h | 48 |
1 files changed, 48 insertions, 0 deletions
@@ -993,8 +993,54 @@ void reset_shared_repository(void); extern int read_replace_refs; extern char *git_replace_ref_base; +/* + * These values are used to help identify parts of a repository to fsync. + * FSYNC_COMPONENT_NONE identifies data that will not be a persistent part of the + * repository and so shouldn't be fsynced. + */ +enum fsync_component { + FSYNC_COMPONENT_NONE, + FSYNC_COMPONENT_LOOSE_OBJECT = 1 << 0, + FSYNC_COMPONENT_PACK = 1 << 1, + FSYNC_COMPONENT_PACK_METADATA = 1 << 2, + FSYNC_COMPONENT_COMMIT_GRAPH = 1 << 3, + FSYNC_COMPONENT_INDEX = 1 << 4, +}; + +#define FSYNC_COMPONENTS_OBJECTS (FSYNC_COMPONENT_LOOSE_OBJECT | \ + FSYNC_COMPONENT_PACK) + +#define FSYNC_COMPONENTS_DERIVED_METADATA (FSYNC_COMPONENT_PACK_METADATA | \ + FSYNC_COMPONENT_COMMIT_GRAPH) + +#define FSYNC_COMPONENTS_DEFAULT (FSYNC_COMPONENTS_OBJECTS | \ + FSYNC_COMPONENTS_DERIVED_METADATA | \ + ~FSYNC_COMPONENT_LOOSE_OBJECT) + +#define FSYNC_COMPONENTS_COMMITTED (FSYNC_COMPONENTS_OBJECTS) + +#define FSYNC_COMPONENTS_ADDED (FSYNC_COMPONENTS_COMMITTED | \ + FSYNC_COMPONENT_INDEX) + +#define FSYNC_COMPONENTS_ALL (FSYNC_COMPONENT_LOOSE_OBJECT | \ + FSYNC_COMPONENT_PACK | \ + FSYNC_COMPONENT_PACK_METADATA | \ + FSYNC_COMPONENT_COMMIT_GRAPH | \ + FSYNC_COMPONENT_INDEX) + +/* + * A bitmask indicating which components of the repo should be fsynced. + */ +extern enum fsync_component fsync_components; extern int fsync_object_files; extern int use_fsync; + +enum fsync_method { + FSYNC_METHOD_FSYNC, + FSYNC_METHOD_WRITEOUT_ONLY +}; + +extern enum fsync_method fsync_method; extern int core_preload_index; extern int precomposed_unicode; extern int protect_hfs; @@ -1715,6 +1761,8 @@ int copy_file_with_time(const char *dst, const char *src, int mode); void write_or_die(int fd, const void *buf, size_t count); void fsync_or_die(int fd, const char *); +int fsync_component(enum fsync_component component, int fd); +void fsync_component_or_die(enum fsync_component component, int fd, const char *msg); ssize_t read_in_full(int fd, void *buf, size_t count); ssize_t write_in_full(int fd, const void *buf, size_t count); |