Merge pull request #450 from hackerchai/feature/rust-sled

feat(rust): implement rust sled demo

_rsdemo/sled/sled.go

@@ -0,0 +1,18 @@
+package main
+
+import (
+	"github.com/goplus/llgo/c"
+	"github.com/goplus/llgo/rust/sled"
+)
+
+func main() {
+	var valueLen c.Ulong
+	conf := sled.CreateConfig()
+	path := c.Str("./db")
+	copyPath := c.Strdup(path)
+	pathConfig := conf.SetPath(copyPath)
+	db := pathConfig.OpenDb()
+	db.Set(c.Str("key"), 3, c.Str("value"), 5)
+	value := db.Get(c.Str("key"), 3, &valueLen)
+	c.Printf(c.Str("value: %s\n"), value)
+}

rust/sled/sled.go

@@ -0,0 +1,70 @@
+package sled
+
+import "github.com/goplus/llgo/c"
+
+// Write the .pc file for the dylib generated by the Rust library and copy it to pkg-config for proper location.
+const (
+	LLGoPackage = "link: $(pkg-config --libs sled); -lsled"
+)
+
+type Config struct {
+	Unused [8]byte
+}
+
+type DB struct {
+	Unused [8]byte
+}
+
+// Create a new configuration
+// llgo:link CreateConfig C.sled_create_config
+func CreateConfig() *Config { return nil }
+
+// Free a configuration
+// llgo:link (*Config).FreeConfig C.sled_free_config
+func (conf *Config) FreeConfig() {}
+
+// Set the configured file path
+// llgo:link (*Config).SetPath C.sled_config_set_path
+func (conf *Config) SetPath(path *c.Char) *Config { return nil }
+
+// Set the configured cache capacity in bytes
+// llgo:link (*Config).SetCacheCapacity C.sled_config_set_cache_capacity
+func (conf *Config) SetCacheCapacity(capacity c.Ulong) *Config { return nil }
+
+// Configure the use of the zstd compression library
+// llgo:link (*Config).UseCompression C.sled_config_use_compression
+func (conf *Config) UseCompression(use_compression c.Char) *Config { return nil }
+
+// Set the configured IO buffer flush interval in milliseconds
+// llgo:link (*Config).SetFlushEveryMs C.sled_config_flush_every_ms
+func (conf *Config) SetFlushEveryMs(flush_every c.Int) *Config { return nil }
+
+// Open a sled lock-free log-structured tree
+// llgo:link (*Config).OpenDb C.sled_open_db
+func (conf *Config) OpenDb() *DB { return nil }
+
+// Close a sled lock-free log-structured tree
+// llgo:link (*DB).Close C.sled_close
+func (db *DB) Close() {}
+
+// Free a buffer originally allocated by sled
+// llgo:link FreeBuf C.sled_free_buf
+func FreeBuf(buf *c.Char, sz c.Ulong) {}
+
+// Set a key to a value
+// llgo:link (*DB).Set C.sled_set
+func (db *DB) Set(key *c.Char, keylen c.Ulong, val *c.Char, vallen c.Ulong) {}
+
+// Get the value of a key
+// llgo:link (*DB).Get C.sled_get
+func (db *DB) Get(key *c.Char, keylen c.Ulong, vallen *c.Ulong) *c.Char { return nil }
+
+// Delete the value of a key
+// llgo:link (*DB).Del C.sled_del
+func (db *DB) Del(key *c.Char, keylen c.Ulong) {}
+
+// Compare and swap
+// llgo:link (*DB).CompareAndSwap C.sled_compare_and_swap
+func (db *DB) CompareAndSwap(key *c.Char, keylen c.Ulong, old_val *c.Char, old_vallen c.Ulong, new_val *c.Char, new_vallen c.Ulong, actual_val **c.Char, actual_vallen *c.Ulong) c.Char {
+	return 0
+}