Provided by: libmongoc-doc_1.9.2+dfsg-1build1_all 
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.
AUTHOR
MongoDB, Inc
COPYRIGHT
2018, MongoDB, Inc