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Add get_global for Sandbox (#4756)

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* Add `get_global` for `Sandbox`

This pr adds `get_global` to retrieve a `global` variable from an
instantiated sandbox wasm blob.

* Bump `spec_version`

* Update primitives/wasm-interface/src/lib.rs

Co-Authored-By: Sergei Pepyakin <sergei@parity.io>

* `get_global` -> `get_global_val`

Co-authored-by: Sergei Pepyakin <s.pepyakin@gmail.com>
Co-authored-by: Gavin Wood <github@gavwood.com>
This commit is contained in:
Bastian Köcher
2020-01-29 16:24:40 +01:00
committed by GitHub
parent ae1e9002d7
commit 4c36143375
23 changed files with 275 additions and 195 deletions
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substrate/frame/contracts/src/wasm/runtime.rs
+2 -4
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@@ -23,9 +23,7 @@ use crate::exec::{
use crate::gas::{Gas, GasMeter, Token, GasMeterResult, approx_gas_for_balance};
use sp_sandbox;
use frame_system;
use sp_std::prelude::*;
use sp_std::convert::TryInto;
use sp_std::mem;
use sp_std::{prelude::*, mem, convert::TryInto};
use codec::{Decode, Encode};
use sp_runtime::traits::{Bounded, SaturatedConversion};
@@ -89,7 +87,7 @@ pub(crate) fn to_execution_result<E: Ext>(
buffer.clear();
Ok(ExecReturnValue { status: STATUS_SUCCESS, data: buffer })
}
Ok(sp_sandbox::ReturnValue::Value(sp_sandbox::TypedValue::I32(exit_code))) => {
Ok(sp_sandbox::ReturnValue::Value(sp_sandbox::Value::I32(exit_code))) => {
let status = (exit_code & 0xFF).try_into()
.expect("exit_code is masked into the range of a u8; qed");
Ok(ExecReturnValue { status, data: runtime.scratch_buf })