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Merge pull request #476 from alabid/alabid/add-to-simple-example 

Added WriteBatch block to simple_example.cc
This commit is contained in:
Igor Canadi 2015-01-27 18:12:44 -08:00
parent d2a2b058f0 f8f040ccc7
commit 551a41df37
3 changed files with 19 additions and 2 deletions
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1
.gitignore vendored
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@ -20,6 +20,7 @@ make_config.mk
*.d-e *.d-e
*.o-* *.o-*
*.swp *.swp
*~
ldb ldb
manifest_dump manifest_dump

2
examples/.gitignore vendored
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@ -1,2 +1,4 @@
column_families_example column_families_example
simple_example simple_example
c_simple_example
compact_files_example

18
examples/simple_example.cc
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@ -27,14 +27,28 @@ int main() {
assert(s.ok()); assert(s.ok());
// Put key-value // Put key-value
s = db->Put(WriteOptions(), "key", "value"); s = db->Put(WriteOptions(), "key1", "value");
assert(s.ok()); assert(s.ok());
std::string value; std::string value;
// get value // get value
s = db->Get(ReadOptions(), "key", &value); s = db->Get(ReadOptions(), "key1", &value);
assert(s.ok()); assert(s.ok());
assert(value == "value"); assert(value == "value");
// atomically apply a set of updates
{
WriteBatch batch;
batch.Delete("key1");
batch.Put("key2", value);
s = db->Write(WriteOptions(), &batch);
}
s = db->Get(ReadOptions(), "key1", &value);
assert(s.IsNotFound());
db->Get(ReadOptions(), "key2", &value);
assert(value == "value");
delete db; delete db;
return 0; return 0;