#include "path.h"
#include "sha1-array.h"
#include "repository.h"
+#include "mem-pool.h"
#include <zlib.h>
typedef struct git_zstream {
struct stat_data ce_stat_data;
unsigned int ce_mode;
unsigned int ce_flags;
+ unsigned int mem_pool_allocated;
unsigned int ce_namelen;
unsigned int index; /* for link extension */
struct object_id oid;
/* Forward structure decls */
struct pathspec;
struct child_process;
+struct tree;
/*
* Copy the sha1 and stat state of a cache entry from one to
const struct cache_entry *src)
{
unsigned int state = dst->ce_flags & CE_HASHED;
+ int mem_pool_allocated = dst->mem_pool_allocated;
/* Don't copy hash chain and name */
memcpy(&dst->ce_stat_data, &src->ce_stat_data,
/* Restore the hash state */
dst->ce_flags = (dst->ce_flags & ~CE_HASHED) | state;
+
+ /* Restore the mem_pool_allocated flag */
+ dst->mem_pool_allocated = mem_pool_allocated;
}
static inline unsigned create_ce_flags(unsigned stage)
struct untracked_cache *untracked;
uint64_t fsmonitor_last_update;
struct ewah_bitmap *fsmonitor_dirty;
+ struct mem_pool *ce_mem_pool;
};
extern struct index_state the_index;
*/
void discard_cache_entry(struct cache_entry *ce);
+/*
+ * Check configuration if we should perform extra validation on cache
+ * entries.
+ */
+int should_validate_cache_entries(void);
+
+/*
+ * Duplicate a cache_entry. Allocate memory for the new entry from a
+ * memory_pool. Takes into account cache_entry fields that are meant
+ * for managing the underlying memory allocation of the cache_entry.
+ */
+struct cache_entry *dup_cache_entry(const struct cache_entry *ce, struct index_state *istate);
+
+/*
+ * Validate the cache entries in the index. This is an internal
+ * consistency check that the cache_entry structs are allocated from
+ * the expected memory pool.
+ */
+void validate_cache_entries(const struct index_state *istate);
+
#ifndef NO_THE_INDEX_COMPATIBILITY_MACROS
#define active_cache (the_index.cache)
#define active_nr (the_index.cache_nr)
extern const char *get_git_common_dir(void);
extern char *get_object_directory(void);
extern char *get_index_file(void);
-extern char *get_graft_file(void);
+extern char *get_graft_file(struct repository *r);
extern void set_git_dir(const char *path);
extern int get_common_dir_noenv(struct strbuf *sb, const char *gitdir);
extern int get_common_dir(struct strbuf *sb, const char *gitdir);
extern int unmerged_index(const struct index_state *);
/**
- * Returns 1 if the index differs from HEAD, 0 otherwise. When on an unborn
- * branch, returns 1 if there are entries in the index, 0 otherwise. If an
- * strbuf is provided, the space-separated list of files that differ will be
- * appended to it.
+ * Returns 1 if istate differs from tree, 0 otherwise. If tree is NULL,
+ * compares istate to HEAD. If tree is NULL and on an unborn branch,
+ * returns 1 if there are entries in istate, 0 otherwise. If an strbuf is
+ * provided, the space-separated list of files that differ will be appended
+ * to it.
*/
-extern int index_has_changes(struct strbuf *sb);
+extern int index_has_changes(const struct index_state *istate,
+ struct tree *tree,
+ struct strbuf *sb);
extern int verify_path(const char *path, unsigned mode);
extern int strcmp_offset(const char *s1, const char *s2, size_t *first_change);
extern int fsync_object_files;
extern int core_preload_index;
-extern int core_commit_graph;
extern int core_apply_sparse_checkout;
extern int precomposed_unicode;
extern int protect_hfs;
static inline int hashcmp(const unsigned char *sha1, const unsigned char *sha2)
{
- return memcmp(sha1, sha2, GIT_SHA1_RAWSZ);
+ return memcmp(sha1, sha2, the_hash_algo->rawsz);
}
static inline int oidcmp(const struct object_id *oid1, const struct object_id *oid2)
static inline void hashcpy(unsigned char *sha_dst, const unsigned char *sha_src)
{
- memcpy(sha_dst, sha_src, GIT_SHA1_RAWSZ);
+ memcpy(sha_dst, sha_src, the_hash_algo->rawsz);
}
static inline void oidcpy(struct object_id *dst, const struct object_id *src)
static inline void hashclr(unsigned char *hash)
{
- memset(hash, 0, GIT_SHA1_RAWSZ);
+ memset(hash, 0, the_hash_algo->rawsz);
}
static inline void oidclr(struct object_id *oid)
*/
extern char *xdg_cache_home(const char *filename);
-extern void *read_object_file_extended(const struct object_id *oid,
- enum object_type *type,
- unsigned long *size, int lookup_replace);
-static inline void *read_object_file(const struct object_id *oid, enum object_type *type, unsigned long *size)
-{
- return read_object_file_extended(oid, type, size, 1);
-}
-
-/* Read and unpack an object file into memory, write memory to an object file */
-int oid_object_info(struct repository *r, const struct object_id *, unsigned long *);
-
-extern int hash_object_file(const void *buf, unsigned long len,
- const char *type, struct object_id *oid);
-
-extern int write_object_file(const void *buf, unsigned long len,
- const char *type, struct object_id *oid);
-
-extern int hash_object_file_literally(const void *buf, unsigned long len,
- const char *type, struct object_id *oid,
- unsigned flags);
-
-extern int pretend_object_file(void *, unsigned long, enum object_type,
- struct object_id *oid);
-
-extern int force_object_loose(const struct object_id *oid, time_t mtime);
-
extern int git_open_cloexec(const char *name, int flags);
#define git_open(name) git_open_cloexec(name, O_RDONLY)
extern int unpack_sha1_header(git_zstream *stream, unsigned char *map, unsigned long mapsize, void *buffer, unsigned long bufsiz);
extern int finalize_object_file(const char *tmpfile, const char *filename);
-/*
- * Open the loose object at path, check its hash, and return the contents,
- * type, and size. If the object is a blob, then "contents" may return NULL,
- * to allow streaming of large blobs.
- *
- * Returns 0 on success, negative on error (details may be written to stderr).
- */
-int read_loose_object(const char *path,
- const struct object_id *expected_oid,
- enum object_type *type,
- unsigned long *size,
- void **contents);
-
-/*
- * Convenience for sha1_object_info_extended() with a NULL struct
- * object_info. OBJECT_INFO_SKIP_CACHED is automatically set; pass
- * nonzero flags to also set other flags.
- */
-extern int has_sha1_file_with_flags(const unsigned char *sha1, int flags);
-static inline int has_sha1_file(const unsigned char *sha1)
-{
- return has_sha1_file_with_flags(sha1, 0);
-}
-
-/* Same as the above, except for struct object_id. */
-extern int has_object_file(const struct object_id *oid);
-extern int has_object_file_with_flags(const struct object_id *oid, int flags);
-
-/*
- * Return true iff an alternate object database has a loose object
- * with the specified name. This function does not respect replace
- * references.
- */
-extern int has_loose_object_nonlocal(const struct object_id *oid);
-
-extern void assert_oid_type(const struct object_id *oid, enum object_type expect);
-
/* Helper to check and "touch" a file */
extern int check_and_freshen_file(const char *fn, int freshen);
#define FOR_EACH_OBJECT_LOCAL_ONLY 0x1
extern int for_each_loose_object(each_loose_object_fn, void *, unsigned flags);
-struct object_info {
- /* Request */
- enum object_type *typep;
- unsigned long *sizep;
- off_t *disk_sizep;
- unsigned char *delta_base_sha1;
- struct strbuf *type_name;
- void **contentp;
-
- /* Response */
- enum {
- OI_CACHED,
- OI_LOOSE,
- OI_PACKED,
- OI_DBCACHED
- } whence;
- union {
- /*
- * struct {
- * ... Nothing to expose in this case
- * } cached;
- * struct {
- * ... Nothing to expose in this case
- * } loose;
- */
- struct {
- struct packed_git *pack;
- off_t offset;
- unsigned int is_delta;
- } packed;
- } u;
-};
-
-/*
- * Initializer for a "struct object_info" that wants no items. You may
- * also memset() the memory to all-zeroes.
- */
-#define OBJECT_INFO_INIT {NULL}
-
-/* Invoke lookup_replace_object() on the given hash */
-#define OBJECT_INFO_LOOKUP_REPLACE 1
-/* Allow reading from a loose object file of unknown/bogus type */
-#define OBJECT_INFO_ALLOW_UNKNOWN_TYPE 2
-/* Do not check cached storage */
-#define OBJECT_INFO_SKIP_CACHED 4
-/* Do not retry packed storage after checking packed and loose storage */
-#define OBJECT_INFO_QUICK 8
-/* Do not check loose object */
-#define OBJECT_INFO_IGNORE_LOOSE 16
-
-int oid_object_info_extended(struct repository *r,
- const struct object_id *,
- struct object_info *, unsigned flags);
-
/*
* Set this to 0 to prevent sha1_object_info_extended() from fetching missing
* blobs. This has a difference only if extensions.partialClone is set.
int decode_85(char *dst, const char *line, int linelen);
void encode_85(char *buf, const unsigned char *data, int bytes);
-/* alloc.c */
-extern void *alloc_blob_node(void);
-extern void *alloc_tree_node(void);
-extern void *alloc_commit_node(void);
-extern void *alloc_tag_node(void);
-extern void *alloc_object_node(void);
-extern void alloc_report(void);
-extern unsigned int alloc_commit_index(void);
-
/* pkt-line.c */
void packet_trace_identity(const char *prog);