1MONGOC_GRIDFS_FILE_SEEK(3)         libmongoc        MONGOC_GRIDFS_FILE_SEEK(3)
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NAME

6       mongoc_gridfs_file_seek - mongoc_gridfs_file_seek()
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SYNOPSIS

9          int
10          mongoc_gridfs_file_seek (mongoc_gridfs_file_t *file, int64_t delta, int whence);
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PARAMETERS

13       · file: A mongoc_gridfs_file_t.
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15       · delta: The amount to move the file position. May be positive or nega‐
16         tive.
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18       · whence: One of SEEK_SET, SEEK_CUR or SEEK_END.
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DESCRIPTION

21       Adjust the file position pointer in the given file by  delta,  starting
22       from  the  position  whence.  The  whence argument is interpreted as in
23       fseek(2):
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25                       ┌─────────┬────────────────────────────┐
26                       │SEEK_SET │ Set the position  relative │
27                       │         │ to the start of the file.  │
28                       ├─────────┼────────────────────────────┤
29                       │SEEK_CUR │ Move delta relative to the │
30                       │         │ current file position.     │
31                       ├─────────┼────────────────────────────┤
32                       │SEEK_END │ Move delta relative to the │
33                       │         │ end of the file.           │
34                       └─────────┴────────────────────────────┘
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36       On  success,  the  file's  underlying position pointer is set appropri‐
37       ately. On failure, the file position is NOT changed and errno is set to
38       indicate the error.
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ERRORS

41                        ┌───────┬────────────────────────────┐
42                        │EINVAL │ whence   is   not  one  of │
43                        │       │ SEEK_SET,   SEEK_CUR    or │
44                        │       │ SEEK_END.                  │
45                        ├───────┼────────────────────────────┤
46                        │EINVAL │ The  resulting  file posi‐ │
47                        │       │ tion would be negative.    │
48                        └───────┴────────────────────────────┘
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RETURNS

51       Returns 0 if successful; otherwise -1 and errno is set.
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AUTHOR

54       MongoDB, Inc
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57       2017-present, MongoDB, Inc
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621.17.4                           Feb 04, 2021       MONGOC_GRIDFS_FILE_SEEK(3)
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