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backuppc.h  view on Meta::CPAN

void bpc_lib_setTmpFileUnique(int val);
int bpc_lib_setLogLevel(int logLevel);
void bpc_byte2hex(char *outStr, int byte);
uchar bpc_hexStr2byte(char c1, char c2);
void bpc_digest_buffer2MD5(bpc_digest *digest, uchar *buffer, size_t bufferLen);
void bpc_digest_append_ext(bpc_digest *digest, uint32 ext);
void bpc_digest_digest2str(bpc_digest *digest, char *hexStr);
void bpc_digest_str2digest(bpc_digest *digest, char *hexStr);
int bpc_digest_compare(bpc_digest *digest1, bpc_digest *digest2);
void bpc_digest_md52path(char *path, int compress, bpc_digest *digest);
void bpc_digest_md52path_v3(char *path, int compress, bpc_digest *digest);
void bpc_digest_buffer2MD5_v3(bpc_digest *digest, uchar *buffer, size_t bufferLen);
void bpc_fileNameEltMangle(char *path, int pathSize, char *pathUM);
void bpc_fileNameMangle(char *path, int pathSize, char *pathUM);
void bpc_logMsgf(char *fmt, ...);
void bpc_logErrf(char *fmt, ...);
void bpc_logMsgGet(char **mesg, size_t *mesgLen);
void bpc_logMsgErrorCntGet(unsigned long *errorCnt);
void bpc_logMsgCBSet(void (*cb)(int errFlag, char *mesg, size_t mesgLen));

/*
 * Compute file digest
 */
int bpc_fileDigest(char *fileName, int compress, bpc_digest *digest);

/*
 * Directory operations
 */
int bpc_path_create(char *path);
int bpc_path_remove(bpc_deltaCount_info *deltaInfo, char *path, int compress);
int bpc_path_refCountAll(bpc_deltaCount_info *deltaInfo, char *path, int compress, int incr);
int bpc_path_refCountAllInodeMax(bpc_deltaCount_info *deltaInfo, char *path, int compress, int incr, unsigned int *inodeMax);
int bpc_lockRangeFd(int fd, OFF_T offset, OFF_T len, int block);
int bpc_unlockRangeFd(int fd, OFF_T offset, OFF_T len);
int bpc_lockRangeFile(char *lockFile, OFF_T offset, OFF_T len, int block);
void bpc_unlockRangeFile(int lockFd);

/*
 * File attribs
 */
typedef struct {
    bpc_hashtable_key key;
    void *value;
    uint32 valueLen;
} bpc_attrib_xattr;

typedef struct {
    bpc_hashtable_key key;
    char *name;
    ushort type;
    ushort compress;
    /*
     * isTemp is set if this is a temporary attribute entry (eg: mkstemp), that
     * doesn't have referencing counting for the digest.  Therefore, when a
     * temporary file is created or deleted, there is no change to the
     * reference counts.
     */
    ushort isTemp;
    uint32 mode;
    uid_t uid;
    gid_t gid;
    uint32 nlinks;
    time_t mtime;
    OFF_T size;
    ino_t inode;
    int32 backupNum;
    bpc_digest digest;
    /*
     * hash table of bpc_attrib_xattr entries, indexed by xattr key
     */
    bpc_hashtable xattrHT;
} bpc_attrib_file;

/*
 * A directory is a hash table of file attributes, indexed by file name
 */
typedef struct {
    bpc_digest digest;
    ushort compress;
    ushort needRewrite;
    /*
     * hash table of bpc_attrib_file entries, indexed by file name
     */
    bpc_hashtable filesHT;
} bpc_attrib_dir;

bpc_attrib_xattr *bpc_attrib_xattrGet(bpc_attrib_file *file, void *key, int keyLen, int allocate_if_missing);
void bpc_attrib_xattrDestroy(bpc_attrib_xattr *xattr);
int bpc_attrib_xattrDelete(bpc_attrib_file *file, void *key, int keyLen);
int bpc_attrib_xattrDeleteAll(bpc_attrib_file *file);
int bpc_attrib_xattrSetValue(bpc_attrib_file *file, void *key, int keyLen, void *value, uint32 valueLen);
int bpc_attrib_xattrCount(bpc_attrib_file *file);
size_t bpc_attrib_xattrList(bpc_attrib_file *file, char *list, size_t listLen, int ignoreRsyncACLs);
void bpc_attrib_fileInit(bpc_attrib_file *file, char *fileName, int xattrNumEntries);
void bpc_attrib_fileDestroy(bpc_attrib_file *file);
bpc_attrib_file *bpc_attrib_fileGet(bpc_attrib_dir *dir, char *fileName, int allocate_if_missing);
int bpc_attrib_fileIterate(bpc_attrib_dir *dir, bpc_attrib_file **file, uint *idx);
void bpc_attrib_fileCopyOpt(bpc_attrib_file *fileDest, bpc_attrib_file *fileSrc, int overwriteEmptyDigest);
void bpc_attrib_fileCopy(bpc_attrib_file *fileDest, bpc_attrib_file *fileSrc);
int bpc_attrib_fileCompare(bpc_attrib_file *file0, bpc_attrib_file *file1);
void bpc_attrib_fileDeleteName(bpc_attrib_dir *dir, char *fileName);
int bpc_attrib_fileCount(bpc_attrib_dir *dir);
char *bpc_attrib_fileType2Text(int type);
void bpc_attrib_dirInit(bpc_attrib_dir *dir, int compressLevel);
void bpc_attrib_dirDestroy(bpc_attrib_dir *dir);
int bpc_attrib_dirNeedRewrite(bpc_attrib_dir *dir);
ssize_t bpc_attrib_getEntries(bpc_attrib_dir *dir, char *entries, ssize_t entrySize);
void bpc_attrib_dirRefCount(bpc_deltaCount_info *deltaInfo, bpc_attrib_dir *dir, int incr);
void bpc_attrib_dirRefCountInodeMax(bpc_deltaCount_info *deltaInfo, bpc_attrib_dir *dir, int incr, unsigned int *inodeMax);
void bpc_attrib_attribFilePath(char *path, char *dir, char *attribFileName);
bpc_digest *bpc_attrib_dirDigestGet(bpc_attrib_dir *dir);
uchar *bpc_attrib_buf2file(bpc_attrib_file *file, uchar *buf, uchar *bufEnd, int xattrNumEntries, int *xattrFixup);
uchar *bpc_attrib_buf2fileFull(bpc_attrib_file *file, uchar *buf, uchar *bufEnd);
uchar *bpc_attrib_file2buf(bpc_attrib_file *file, uchar *buf, uchar *bufEnd);
int bpc_attrib_digestRead(bpc_attrib_dir *dir, bpc_digest *digest, char *attribPath);
int bpc_attrib_dirRead(bpc_attrib_dir *dir, char *dirPath, char *attribFileName, int backupNum);
int bpc_attrib_dirWrite(bpc_deltaCount_info *deltaInfo, bpc_attrib_dir *dir, char *dirPath, char *attribFileName, bpc_digest *oldDigest);
void bpc_attrib_backwardCompat(int writeOldStyleAttribFile, int keepOldAttribFiles);

/*
 * Attrib caching