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38 lines
1.3 KiB
Rust
38 lines
1.3 KiB
Rust
/* This file is part of DarkFi (https://dark.fi)
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*
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* Copyright (C) 2020-2023 Dyne.org foundation
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU Affero General Public License as
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* published by the Free Software Foundation, either version 3 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU Affero General Public License for more details.
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*
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* You should have received a copy of the GNU Affero General Public License
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* along with this program. If not, see <https://www.gnu.org/licenses/>.
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*/
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use wasmer::{MemoryView, WasmPtr};
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use crate::Result;
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pub trait MemoryManipulation {
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fn write_slice(&self, value_slice: &[u8], mem_offset: u32) -> Result<()>;
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}
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impl<'a> MemoryManipulation for MemoryView<'a> {
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fn write_slice(&self, value_slice: &[u8], mem_offset: u32) -> Result<()> {
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// Prepare WasmPtr
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let ptr: WasmPtr<u8> = WasmPtr::new(mem_offset);
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// Write to the slice
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let slice = ptr.slice(self, value_slice.len() as u32)?;
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Ok(slice.write_slice(value_slice)?)
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}
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}
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