status-im
/
nim-rocksdb
mirror of https://github.com/status-im/nim-rocksdb.git
2
0
Fork 0
Code Issues Projects Releases Wiki Activity

Merge pull request #25 from xyb/removeuglycast 

remove ugly cast
This commit is contained in:
Ștefan Talpalaru 2020-07-20 14:45:25 +02:00 committed by GitHub
parent 11d80282c1 1717743ce7
commit 6aab1e0dd6
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 4 additions and 4 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

8
examples/simple_example.nim
View File

@ -32,18 +32,18 @@ proc main() =
var writeOptions = rocksdb_writeoptions_create()
let key = "key"
let put_value = "value"
rocksdb_put(db, writeOptions, key.cstring, cast[csize_t](key.len), put_value.cstring, cast[csize_t](put_value.len), err.addr)
rocksdb_put(db, writeOptions, key.cstring, key.len.csize_t, put_value.cstring, put_value.len.csize_t, err.addr)
doAssert err.isNil, $err
# Get value
var readOptions = rocksdb_readoptions_create()
var len: csize_t
let raw_value = rocksdb_get(db, readOptions, key, cast[csize_t](key.len), addr len, err.addr) # Important: rocksdb_get is not null-terminated
let raw_value = rocksdb_get(db, readOptions, key, key.len.csize_t, addr len, err.addr) # Important: rocksdb_get is not null-terminated
doAssert err.isNil, $err
# Copy it to a regular Nim string (copyMem workaround because raw value is NOT null-terminated)
var get_value = newString(cast[int](len))
copyMem(addr get_value[0], unsafeAddr raw_value[0], cast[int](len) * sizeof(char))
var get_value = newString(len.int)
copyMem(addr get_value[0], unsafeAddr raw_value[0], len.int * sizeof(char))
doAssert get_value == put_value