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feat: finished zero-copy migration!

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now the entire networking and persistence stack is zero-copy with
single-allocation, single-copy reads.

Closes #128

Signed-off-by: Sienna Meridian Satterwhite <sienna@r3t.io>
This commit is contained in:
Sienna Meridian Satterwhite
2025-12-17 21:45:46 +00:00
parent bb4393bb9e
commit 9c19fc0296
14 changed files with 106 additions and 81 deletions
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14
crates/sync-macros/src/lib.rs
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@@ -183,10 +183,10 @@ pub fn derive_synced(input: TokenStream) -> TokenStream {
let component: #name = rkyv::from_bytes::<#name, rkyv::rancor::Failure>(bytes)?;
Ok(Box::new(component))
},
serialize_fn: |world: &bevy::ecs::world::World, entity: bevy::ecs::entity::Entity| -> Option<Vec<u8>> {
serialize_fn: |world: &bevy::ecs::world::World, entity: bevy::ecs::entity::Entity| -> Option<bytes::Bytes> {
world.get::<#name>(entity).and_then(|component| {
rkyv::to_bytes::<rkyv::rancor::Failure>(component)
.map(|bytes| bytes.to_vec())
.map(|vec| bytes::Bytes::from(vec.to_vec()))
.ok()
})
},
@@ -204,7 +204,7 @@ pub fn derive_synced(input: TokenStream) -> TokenStream {
const STRATEGY: libmarathon::networking::SyncStrategy = #strategy_tokens;
#[inline]
fn serialize_sync(&self) -> anyhow::Result<Vec<u8>> {
fn serialize_sync(&self) -> anyhow::Result<bytes::Bytes> {
#serialize_impl
}
@@ -228,7 +228,7 @@ fn generate_serialize(_input: &DeriveInput) -> proc_macro2::TokenStream {
// Use rkyv for zero-copy serialization
// Later we can optimize for specific types (e.g., f32 -> to_le_bytes)
quote! {
rkyv::to_bytes::<rkyv::rancor::Failure>(self).map(|bytes| bytes.to_vec()).map_err(|e| anyhow::anyhow!("Serialization failed: {}", e))
rkyv::to_bytes::<rkyv::rancor::Failure>(self).map(|bytes| bytes::Bytes::from(bytes.to_vec())).map_err(|e| anyhow::anyhow!("Serialization failed: {}", e))
}
}
@@ -499,10 +499,10 @@ pub fn synced(attr: TokenStream, item: TokenStream) -> TokenStream {
let component: #name = rkyv::from_bytes::<#name, rkyv::rancor::Failure>(bytes)?;
Ok(Box::new(component))
},
serialize_fn: |world: &bevy::ecs::world::World, entity: bevy::ecs::entity::Entity| -> Option<Vec<u8>> {
serialize_fn: |world: &bevy::ecs::world::World, entity: bevy::ecs::entity::Entity| -> Option<bytes::Bytes> {
world.get::<#name>(entity).and_then(|component| {
rkyv::to_bytes::<rkyv::rancor::Failure>(component)
.map(|bytes| bytes.to_vec())
.map(|vec| bytes::Bytes::from(vec.to_vec()))
.ok()
})
},
@@ -520,7 +520,7 @@ pub fn synced(attr: TokenStream, item: TokenStream) -> TokenStream {
const STRATEGY: libmarathon::networking::SyncStrategy = #strategy_tokens;
#[inline]
fn serialize_sync(&self) -> anyhow::Result<Vec<u8>> {
fn serialize_sync(&self) -> anyhow::Result<bytes::Bytes> {
#serialize_impl
}