mirror of
https://github.com/git/git
synced 2024-11-04 16:17:49 +00:00
79 lines
2.4 KiB
C
79 lines
2.4 KiB
C
|
#ifndef WRITE_OR_DIE_H
|
||
|
|
#define WRITE_OR_DIE_H
|
||
|
|
|
||
|
|
void maybe_flush_or_die(FILE *, const char *);
|
||
|
|
__attribute__((format (printf, 2, 3)))
|
||
|
|
void fprintf_or_die(FILE *, const char *fmt, ...);
|
||
|
|
void fwrite_or_die(FILE *f, const void *buf, size_t count);
|
||
|
|
void fflush_or_die(FILE *f);
|
||
|
|
void write_or_die(int fd, const void *buf, size_t count);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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,
|
||
|
|
FSYNC_COMPONENT_REFERENCE = 1 << 5,
|
||
|
|
};
|
||
|
|
|
||
|
|
#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 | \
|
||
|
|
FSYNC_COMPONENT_REFERENCE)
|
||
|
|
|
||
|
|
#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 | \
|
||
|
|
FSYNC_COMPONENT_REFERENCE)
|
||
|
|
|
||
|
|
#ifndef FSYNC_COMPONENTS_PLATFORM_DEFAULT
|
||
|
|
#define FSYNC_COMPONENTS_PLATFORM_DEFAULT FSYNC_COMPONENTS_DEFAULT
|
||
|
|
#endif
|
||
|
|
|
||
|
|
/* IO helper functions */
|
||
|
|
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);
|
||
|
|
|
||
|
|
/*
|
||
|
|
* 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,
|
||
|
|
FSYNC_METHOD_BATCH,
|
||
|
|
};
|
||
|
|
|
||
|
|
extern enum fsync_method fsync_method;
|
||
|
|
|
||
|
|
static inline int batch_fsync_enabled(enum fsync_component component)
|
||
|
|
{
|
||
|
|
return (fsync_components & component) && (fsync_method == FSYNC_METHOD_BATCH);
|
||
|
|
}
|
||
|
|
|
||
|
|
#endif /* WRITE_OR_DIE_H */
|