From dc4c6cd6f38097ffba3688c7336ed8ead268615a Mon Sep 17 00:00:00 2001
From: Georges Palauqui <georges.palauqui@gptechinno.com>
Date: Sat, 19 Oct 2024 15:43:06 +0200
Subject: [PATCH] serde_sv2: refactor to std logic

---
 protocols/v2/binary-sv2/serde-sv2/Cargo.toml | 3 ++-
 protocols/v2/binary-sv2/serde-sv2/src/lib.rs | 2 +-
 utils/buffer/src/buffer_pool/mod.rs          | 2 +-
 3 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/protocols/v2/binary-sv2/serde-sv2/Cargo.toml b/protocols/v2/binary-sv2/serde-sv2/Cargo.toml
index 0b30e2199..470f9fe8f 100644
--- a/protocols/v2/binary-sv2/serde-sv2/Cargo.toml
+++ b/protocols/v2/binary-sv2/serde-sv2/Cargo.toml
@@ -19,7 +19,8 @@ serde = { version = "1.0.89", features = ["derive", "alloc"], default-features =
 buffer_sv2 = {version = "^1.0.0",  path = "../../../../utils/buffer"}
 
 [features]
-no_std = []
+default = ["std"]
+std = ["serde/std", "buffer_sv2/std"]
 
 [package.metadata.docs.rs]
 all-features = true
\ No newline at end of file
diff --git a/protocols/v2/binary-sv2/serde-sv2/src/lib.rs b/protocols/v2/binary-sv2/serde-sv2/src/lib.rs
index 004a4dfce..811b43fd5 100644
--- a/protocols/v2/binary-sv2/serde-sv2/src/lib.rs
+++ b/protocols/v2/binary-sv2/serde-sv2/src/lib.rs
@@ -72,7 +72,7 @@
 //! [rkyv1]: https://docs.rs/rkyv/0.4.3/rkyv
 //! [rkyv2]: https://davidkoloski.me/blog/rkyv-is-faster-than/
 
-#![cfg_attr(feature = "no_std", no_std)]
+#![cfg_attr(not(feature = "std"), no_std)]
 
 #[macro_use]
 extern crate alloc;
diff --git a/utils/buffer/src/buffer_pool/mod.rs b/utils/buffer/src/buffer_pool/mod.rs
index eae9c41ab..64f6942e3 100644
--- a/utils/buffer/src/buffer_pool/mod.rs
+++ b/utils/buffer/src/buffer_pool/mod.rs
@@ -684,7 +684,7 @@ impl<T: Buffer> Buffer for BufferPool<T> {
 impl<T: Buffer> Drop for BufferPool<T> {
     fn drop(&mut self) {
         while self.shared_state.load(Ordering::Relaxed) != 0 {
-            std::hint::spin_loop();
+            core::hint::spin_loop();
         }
     }
 }