#define MVM_FILE_FLOCK_SHARED        1       /* Shared lock. Read lock */

#define MVM_FILE_FLOCK_EXCLUSIVE     2       /* Exclusive lock. Write lock. */

#define MVM_FILE_FLOCK_TYPEMASK      0x000F  /* a mask of lock type */

#define MVM_FILE_FLOCK_NONBLOCK      0x0010  /* asynchronous block during

                                              * locking the file */

#define MVM_STAT_EXISTS              0

#define MVM_STAT_FILESIZE            1

#define MVM_STAT_ISDIR               2

#define MVM_STAT_ISREG               3

#define MVM_STAT_ISDEV               4

#define MVM_STAT_CREATETIME          5

#define MVM_STAT_ACCESSTIME          6

#define MVM_STAT_MODIFYTIME          7

#define MVM_STAT_CHANGETIME          8

#define MVM_STAT_BACKUPTIME          9

#define MVM_STAT_UID                10

#define MVM_STAT_GID                11

#define MVM_STAT_ISLNK              12

#define MVM_STAT_PLATFORM_DEV       -1

#define MVM_STAT_PLATFORM_INODE     -2

#define MVM_STAT_PLATFORM_MODE      -3

#define MVM_STAT_PLATFORM_NLINKS    -4

#define MVM_STAT_PLATFORM_DEVTYPE   -5

#define MVM_STAT_PLATFORM_BLOCKSIZE -6

#define MVM_STAT_PLATFORM_BLOCKS    -7

MVMint64 MVM_file_stat(MVMThreadContext *tc, MVMString *filename, MVMint64 status, MVMint32 use_lstat);

MVMnum64 MVM_file_time(MVMThreadContext *tc, MVMString *filename, MVMint64 status, MVMint32 use_lstat);

void MVM_file_copy(MVMThreadContext *tc, MVMString *src, MVMString *dest);

void MVM_file_rename(MVMThreadContext *tc, MVMString *src, MVMString *dest);

void MVM_file_delete(MVMThreadContext *tc, MVMString *f);

void MVM_file_chmod(MVMThreadContext *tc, MVMString *f, MVMint64 flag);

MVMint64 MVM_file_exists(MVMThreadContext *tc, MVMString *f, MVMint32 use_lstat);

MVMint64 MVM_file_isreadable(MVMThreadContext *tc, MVMString *filename, MVMint32 use_lstat);

MVMint64 MVM_file_iswritable(MVMThreadContext *tc, MVMString *filename, MVMint32 use_lstat);

MVMint64 MVM_file_isexecutable(MVMThreadContext *tc, MVMString *filename, MVMint32 use_lstat);

MVMObject * MVM_file_get_stdstream(MVMThreadContext *tc, MVMint32 type);

MVMString * MVM_file_in_libpath(MVMThreadContext *tc, MVMString *orig);

void MVM_file_link(MVMThreadContext *tc, MVMString *oldpath, MVMString *newpath);

void MVM_file_symlink(MVMThreadContext *tc, MVMString *oldpath, MVMString *newpath);

MVMString * MVM_file_readlink(MVMThreadContext *tc, MVMString *path);