Fix issues related to #239
Disable mmap reader for current datafile, which only read from the fd.
Co-authored-by: jason3gb <jason3gb@gmail.com>
Reviewed-on: https://git.mills.io/prologic/bitcask/pulls/240
Reviewed-by: James Mills <james@mills.io>
Reviewed-by: Tai Groot <tai@taigrr.com>
Co-authored-by: jason3gb <jason3gb@noreply@mills.io>
Co-committed-by: jason3gb <jason3gb@noreply@mills.io>
Related to #234 and !236.
This is the implementation that was requested in the original issue. I updated KEYS command to be redis-valid and implemented prefix search. There is also a rather interesting test, I could you use some feedback here.
I noticed that it might not be possible to reduce the complexity of the KEYS command. Because even if you use Scan, you will have to store the counter of all found keys before you do WriteBulk of the actual keys.
@prologic here is what you probably had in mind:
```
s.db.Scan([]byte(prefix), func(key []byte) error {
conn.WriteBulk(key)
return nil
})
```
But there is no way to call `conn.WriteArray(n)` with the number of keys until you iterate through all of them, hence the second loop over found keys.
Co-authored-by: Ivan Elfimov <ielfimov@gmail.com>
Co-authored-by: James Mills <james@mills.io>
Reviewed-on: https://git.mills.io/prologic/bitcask/pulls/237
Reviewed-by: James Mills <james@mills.io>
Co-authored-by: biozz <biozz@noreply@mills.io>
Co-committed-by: biozz <biozz@noreply@mills.io>
* Add configuration options for FileMode
Add two additional configuration values, and their corresponding default values:
* DirFileModeBeforeUmask - Dir FileMode is used on all directories created. DefaultDirFileModeBeforeUmask is 0700.
* FileFileModeBeforeUmask - File FileMode is used on all files created, except for the "lock" file (managed by the Flock library). DefaultFileFileModeBeforeUmask is 0600.
When using these bits of configuration, keep in mind these FileMode values are set BEFORE any umask rules are applied. For example, if the user's umask is 022, setting DirFileFileModeBeforeUmask to 777 will result in directories with FileMode set to 755 (this umask prevents the write bit from being applied to group and world permissions).
* moving defer statements after checking for errors
use os.ModePerm const instead of os.FileMode(777)
* fix spelling/grammar
* skip these tests for Windows as they appear to break - Windows is less POSIX-y than it claims
* ignore "lock" file for default case too -- this was incorrectly passing before including this, as my local dev station has umask 022
