NAME¶
mongoc_gridfs_file_seek - mongoc_gridfs_file_seek()
SYNOPSIS¶
int
mongoc_gridfs_file_seek (mongoc_gridfs_file_t *file, int64_t delta, int whence);
PARAMETERS¶
- file: A mongoc_gridfs_file_t.
- delta: The amount to move the file position. May be positive or
negative.
- whence: One of SEEK_SET, SEEK_CUR or SEEK_END.
DESCRIPTION¶
Adjust the file position pointer in the given file by delta, starting
from the position whence. The whence argument is interpreted as
in fseek(2):
SEEK_SET |
Set the position relative to the
start of the file. |
SEEK_CUR |
Move delta relative to the
current file position. |
SEEK_END |
Move delta relative to the end
of the file. |
On success, the file's underlying position pointer is set
appropriately. On failure, the file position is NOT changed and errno is set
to indicate the error.
ERRORS¶
EINVAL |
whence is not one of SEEK_SET,
SEEK_CUR or SEEK_END. |
EINVAL |
The resulting file position would be
negative. |
RETURNS¶
Returns 0 if successful; otherwise -1 and errno is set.
COPYRIGHT¶
2017-present, MongoDB, Inc