src/lib/file-set-size.h

c25356d5978632df6203437e1953bcb29e0c736fTimo Sirainen#ifndef FILE_SET_SIZE_H
c25356d5978632df6203437e1953bcb29e0c736fTimo Sirainen#define FILE_SET_SIZE_H
79d62d195b7eb330c4962ad166f2d066f8837e91Timo Sirainen
79d62d195b7eb330c4962ad166f2d066f8837e91Timo Sirainen/* Shrink/grow file. If file is grown, the new data is guaranteed to
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen   be zeros. The file offset may be anywhere after this call.
02b32cf39a098edf60981fc228e4b034f11f3b90Timo Sirainen   Returns -1 if failed, 0 if successful. */
79d62d195b7eb330c4962ad166f2d066f8837e91Timo Sirainenint file_set_size(int fd, off_t size);
54fc3887b43fac7cb0a62babcff6234b9517e302Timo Sirainen/* Preallocate file to given size, without actually changing the size
54fc3887b43fac7cb0a62babcff6234b9517e302Timo Sirainen   reported by stat(). Returns 1 if ok, 0 if not supported by this filesystem,
54fc3887b43fac7cb0a62babcff6234b9517e302Timo Sirainen   -1 if error. */
54fc3887b43fac7cb0a62babcff6234b9517e302Timo Sirainenint file_preallocate(int fd, off_t size);
79d62d195b7eb330c4962ad166f2d066f8837e91Timo Sirainen
79d62d195b7eb330c4962ad166f2d066f8837e91Timo Sirainen#endif