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Fix up wasm runtime.

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This commit is contained in:
Gav
2018-01-16 18:56:57 +01:00
parent b62a8f9587
commit dc6ebf71cf
12 changed files with 45 additions and 28 deletions
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substrate/wasm-runtime/support/src/lib.rs
+11 -5
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@@ -10,6 +10,7 @@ pub use alloc::vec::Vec;
pub use alloc::boxed::Box;
pub use alloc::rc::Rc;
pub use core::mem::{transmute, size_of, uninitialized, swap};
pub use core::slice;
pub use core::cell::{RefCell, Ref, RefMut};
extern crate pwasm_libc;
@@ -27,7 +28,7 @@ extern "C" {
fn ext_set_storage(key_data: *const u8, key_len: u32, value_data: *const u8, value_len: u32);
fn ext_get_allocated_storage(key_data: *const u8, key_len: u32, written_out: *mut u32) -> *mut u8;
fn ext_get_storage_into(key_data: *const u8, key_len: u32, value_data: *mut u8, value_len: u32) -> u32;
fn ext_deposit_log(log_data: *const u8, log_len: u32);
fn ext_chain_id() -> u64;
}
pub fn storage(key: &[u8]) -> Vec<u8> {
@@ -64,11 +65,16 @@ pub fn set_storage(key: &[u8], value: &[u8]) {
}
}
pub fn deposit_log(log: &[u8]) {
pub fn read_storage(key: &[u8], value_out: &mut [u8]) -> usize {
unsafe {
ext_deposit_log(
&log[0] as *const u8, log.len() as u32,
)
ext_get_storage_into(&key[0], key.len() as u32, &mut value_out[0], value_out.len() as u32) as usize
}
}
/// The current relay chain identifier.
pub fn chain_id() -> u64 {
unsafe {
ext_chain_id()
}
}