04edfa82c1
* Fix r_sys_mkdirp with absolute path on Windows * Fix build with --with-openssl * Use RBuffer in r_socket_http_answer() * r_socket_http_answer: Fix read for big responses * Implement r_str_escape_sh() * Cleanup r_socket_connect() on Windows * Fix socket being created without a protocol * Fix socket connect with SSL ##socket * Use select() in r_socket_ready() * Fix read failing if received only protocol answer * Fix double-free * r_socket_http_get: Fail if req. SSL with no support * Follow redirects in r_socket_http_answer() * Fix r_socket_http_get result length with R2_CURL=1 * Also follow redirects * Avoid using curl for downloading PDBs * Use r_socket_http_get() on UNIXs * Use WinINet API on Windows for r_socket_http_get() * Fix command injection * Fix r_sys_cmd_str_full output for binary data * Validate GUID on PDB download * Pass depth to socket_http_get_recursive() * Remove 'r_' and '__' from static function names * Fix is_valid_guid * Fix for comments
SDB (string database)
sdb is a simple string key/value database based on djb's cdb disk storage and supports JSON and arrays introspection.
mcsdbd is a memcache server with disk storage based on sdb. It is distributed as a standalone binary and a library.
There's also the sdbtypes: a vala library that implements several data structures on top of an sdb or a memcache instance.
Author
pancake pancake@nopcode.org
Contains
- namespaces (multiple sdb paths)
- atomic database sync (never corrupted)
- bindings for vala, luvit, newlisp and nodejs
- commandline frontend for sdb databases
- memcache client and server with sdb backend
- arrays support (syntax sugar)
- json parser/getter (js0n.c)
Rips
- disk storage based on cdb code
- linked lists from r2 api
Compilation
For native builds just type make. Everything will be compiled twice to get the .dylib and .a and sdb in PIC and nonPIC modes.
To compile with Emscripten for Javascript:
make CC=emcc EXT_EXE=.js
Changes
I have modified cdb code a little to create smaller databases and be memory leak free in order to use it from a library.
The sdb's cdb database format is 10% smaller than the original one. This is because keylen and valuelen are encoded in 4 bytes: 1 for the key length and 3 for the value length.
In a test case, a 4.3MB cdb database takes only 3.9MB after this file format change.
Usage example
Let's create a database!
$ sdb d hello=world
$ sdb d hello
world
Using arrays (>=0.6):
$ sdb - '[]list=1,2' '[0]list' '[0]list=foo' '[]list' '[+1]list=bar'
1
foo
2
Let's play with json:
$ sdb d g='{"foo":1,"bar":{"cow":3}}'
$ sdb d g:bar.cow
3
$ sdb - user='{"id":123}' user:id=99 user:id
99
Using the commandline without any disk database:
$ sdb - foo=bar foo a=3 +a -a
bar
4
3
$ sdb -
foo=bar
foo
bar
a=3
+a
4
-a
3
Remove the database
$ rm -f d