mongoc_gridfs_file_seek3
Usage
int mongoc_gridfs_file_seek (mongoc_gridfs_file_t *file, int64_t delta, int whence);
Parameters
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Overview
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.
Releases
5 releases since Debian 9 (Stretch); the text changed 4 times.