feat(wasi) Provide WasiState::(un)freeze if enable-serde is enabled.

aurumlabs · Aug 31, 2021 · a12ec28 · a12ec28
1 parent 4eaa864
commit a12ec28
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Showing 2 changed files with 7 additions and 6 deletions.
diff --git a/lib/wasi/Cargo.toml b/lib/wasi/Cargo.toml
@@ -24,6 +24,7 @@ wasmer = { path = "../api", version = "2.0.0", default-features = false }
 wasmer-vfs = { path = "../vfs", version = "2.0.0", default-features = false }
 typetag = { version = "0.1", optional = true }
 serde = { version = "1.0", default-features = false, features = ["derive"], optional = true }
+bincode = { version = "1.3", optional = true }
 
 [target.'cfg(unix)'.dependencies]
 libc = { version = "^0.2", default-features = false }
@@ -56,4 +57,4 @@ disable-all-logging = [
     "tracing/release_max_level_off",
     "tracing/max_level_off"
 ]
-enable-serde = ["typetag", "serde"]
+enable-serde = ["typetag", "serde", "bincode"]
diff --git a/lib/wasi/src/state/mod.rs b/lib/wasi/src/state/mod.rs
@@ -1571,15 +1571,15 @@ impl WasiState {
     }
 
     /// Turn the WasiState into bytes
+    #[cfg(feature = "enable-serde")]
     pub fn freeze(&self) -> Option<Vec<u8>> {
-        todo!("temporarily disabled")
-        //bincode::serialize(self).ok()
+        bincode::serialize(self).ok()
     }
 
     /// Get a WasiState from bytes
-    pub fn unfreeze(_bytes: &[u8]) -> Option<Self> {
-        todo!("temporarily disabled")
-        //bincode::deserialize(bytes).ok()
+    #[cfg(feature = "enable-serde")]
+    pub fn unfreeze(bytes: &[u8]) -> Option<Self> {
+        bincode::deserialize(bytes).ok()
     }
 }