https://github.com/asmod4n/mruby-lmdb
mruby wrapper for Lightning Memory-Mapped Database from Symas http://symas.com/mdb/
https://github.com/asmod4n/mruby-lmdb
lmdb mruby
Last synced: 10 months ago
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mruby wrapper for Lightning Memory-Mapped Database from Symas http://symas.com/mdb/
- Host: GitHub
- URL: https://github.com/asmod4n/mruby-lmdb
- Owner: Asmod4n
- License: apache-2.0
- Created: 2015-05-27T14:07:32.000Z (over 10 years ago)
- Default Branch: master
- Last Pushed: 2021-09-05T16:48:15.000Z (over 4 years ago)
- Last Synced: 2025-04-07T03:34:39.669Z (11 months ago)
- Topics: lmdb, mruby
- Language: C
- Size: 203 KB
- Stars: 10
- Watchers: 4
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
- License: LICENSE
Awesome Lists containing this project
README
# mruby-lmdb
mruby wrapper for Lightning Memory-Mapped Database from Symas http://symas.com/mdb/
Examples
========
```ruby
env = MDB::Env.new
env.open('testdb', MDB::NOSUBDIR)
db = env.database(MDB::INTEGERKEY)
db << 'hallo0' << 'hallo1' << 'hallo2'
db[18.to_bin] = 'hallo18'
db.concat ['hallo19', 'hallo20'] # for faster batch import
db.each do |k, v|
puts "#{k.to_fix} = #{v}"
end
db.cursor(MDB::RDONLY) do |cursor|
puts cursor.set_range(10.to_bin) # finds the exact or next larger key, see https://github.com/LMDB/lmdb/blob/LMDB_0.9.16/libraries/liblmdb/lmdb.h#L350 for more cursors.
end
puts db.first
puts db.last
puts db.stat
puts env.info
puts env.stat
```
License
=======
Copyright 2015
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this software except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
Acknowledgements
================
This is using code from https://github.com/LMDB/lmdb
The OpenLDAP Public License
Version 2.8, 17 August 2003
Redistribution and use of this software and associated documentation
("Software"), with or without modification, are permitted provided
that the following conditions are met:
1. Redistributions in source form must retain copyright statements
and notices,
2. Redistributions in binary form must reproduce applicable copyright
statements and notices, this list of conditions, and the following
disclaimer in the documentation and/or other materials provided
with the distribution, and
3. Redistributions must contain a verbatim copy of this document.
The OpenLDAP Foundation may revise this license from time to time.
Each revision is distinguished by a version number. You may use
this Software under terms of this license revision or under the
terms of any subsequent revision of the license.
THIS SOFTWARE IS PROVIDED BY THE OPENLDAP FOUNDATION AND ITS
CONTRIBUTORS ``AS IS'' AND ANY EXPRESSED OR IMPLIED WARRANTIES,
INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL THE OPENLDAP FOUNDATION, ITS CONTRIBUTORS, OR THE AUTHOR(S)
OR OWNER(S) OF THE SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
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BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
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LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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The names of the authors and copyright holders must not be used in
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OpenLDAP is a registered trademark of the OpenLDAP Foundation.
Copyright 1999-2003 The OpenLDAP Foundation, Redwood City,
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