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Light friendly storage tracking: changes trie + extending over ranges (#628)

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* changes_trie

* changs_trie: continue

* changes_trie: adding tests

* fixed TODO

* removed obsolete ExtrinsicChanges

* encodable ChangesTrieConfiguration

* removed polkadot fle

* fixed grumbles

* ext_storage_changes_root returns u32

* moved changes trie root to digest

* removed commented code

* read storage values from native code

* fixed grumbles

* fixed grumbles

* missing comma
This commit is contained in:
Svyatoslav Nikolsky
2018-09-18 10:14:41 +03:00
committed by Gav Wood
parent 24479cd7f5
commit 7fa337afbc
64 changed files with 3130 additions and 788 deletions
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substrate/core/sr-io/without_std.rs
+15
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@@ -64,6 +64,7 @@ extern "C" {
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, value_offset: u32) -> u32;
fn ext_storage_root(result: *mut u8);
fn ext_storage_changes_root(block: u64, result: *mut u8) -> u32;
fn ext_blake2_256_enumerated_trie_root(values_data: *const u8, lens_data: *const u32, lens_len: u32, result: *mut u8);
fn ext_chain_id() -> u64;
fn ext_blake2_256(data: *const u8, len: u32, out: *mut u8);
@@ -170,6 +171,20 @@ pub fn storage_root() -> [u8; 32] {
result
}
/// The current storage' changes root.
pub fn storage_changes_root(block: u64) -> Option<[u8; 32]> {
let mut result: [u8; 32] = Default::default();
let is_set = unsafe {
ext_storage_changes_root(block, result.as_mut_ptr())
};
if is_set != 0 {
Some(result)
} else {
None
}
}
/// A trie root calculated from enumerated values.
pub fn enumerated_trie_root<H: Hasher + ExternTrieCrypto>(values: &[&[u8]]) -> [u8; 32] {
H::enumerated_trie_root(values)