Experiments with Sled

sled-test/Cargo.lock

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sled-test/Cargo.toml

@@ -0,0 +1,11 @@
+[package]
+name = "sled-test"
+version = "0.1.0"
+authors = ["Julio Biason <julio.biason@pm.me>"]
+edition = "2018"
+
+# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+
+[dependencies]
+sled = "0.34"
+zerocopy = "0.3"

sled-test/src/main.rs

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+use zerocopy::AsBytes;
+use zerocopy::Unaligned;
+
+// Apparently, zerocopy doesn't know how to make a Vec as bytes (examples show
+// the use of array, so I believe the problem is that a Vec doesn't have a
+// defined, specific size).
+#[derive(AsBytes, Unaligned)]
+#[repr(C)]
+struct Entry {
+    directories: Vec<String>,
+    files: Vec<String>,
+}
+
+fn main() {
+    let command = std::env::args().nth(1).unwrap();
+    match &command[..] {
+        "fill" => fill_db(),
+        "search" => search_db(),
+    }
+}
+
+fn fill_db() {
+    let db = sled::open("example.db").unwrap();
+    let root = Entry {
+        directories: vec!["usr".into(), "etc".into()],
+        files: vec!["boot.img".into()],
+    };
+    let mut conv = vec![];
+    conv.extend_from_slice(&root.as_bytes());
+    db.insert("/", conv);
+}