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EVM-C: Add forgotten blockhash query.

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This commit is contained in:
Paweł Bylica 2016-06-28 11:05:15 +02:00
parent eab17398a6
commit 7db0430bd8
1 changed files with 8 additions and 1 deletions
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9
include/evm.h
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@ -12,6 +12,7 @@
///
/// @defgroup EVMC EVM-C
/// @{
#pragma once
#include <stdint.h> // Definition of int64_t, uint64_t.
#include <stddef.h> // Definition of size_t.
@ -96,6 +97,7 @@ struct evm_result {
};
/// The query callback key.
/// TODO: Reorder and assign values manually.
enum evm_query_key {
EVM_ADDRESS, ///< Address of the contract for ADDRESS.
EVM_CALLER, ///< Message sender address for CALLER.
@ -108,6 +110,7 @@ enum evm_query_key {
EVM_TIMESTAMP, ///< Current block timestamp for TIMESTAMP.
EVM_CODE_BY_ADDRESS, ///< Code by an address for EXTCODE/SIZE.
EVM_BALANCE, ///< Balance of a given address for BALANCE.
EVM_BLOCKHASH, ///< Block hash of a given block number for BLOCKHASH.
EVM_STORAGE, ///< Storage value of a given key for SLOAD.
};
@ -128,6 +131,9 @@ union evm_variant {
/// A host-endian 256-bit integer.
struct evm_uint256 uint256;
/// A big-endian 256-bit integer/hash.
struct evm_hash256 hash256;
struct {
/// Additional padding to align the evm_variant::address with lower
/// bytes of a full 256-bit hash.
@ -153,7 +159,7 @@ union evm_variant {
///
/// ## Types of queries
/// Key | Arg | Expected result
/// ----------------------| -------------------- | ----------------------------------
/// ----------------------| -------------------- | ----------------------------
/// ::EVM_GAS_PRICE | | evm_variant::uint256
/// ::EVM_ADDRESS | | evm_variant::address
/// ::EVM_CALLER | | evm_variant::address
@ -165,6 +171,7 @@ union evm_variant {
/// ::EVM_TIMESTAMP | | evm_variant::int64?
/// ::EVM_CODE_BY_ADDRESS | evm_variant::address | evm_variant::bytes
/// ::EVM_BALANCE | evm_variant::address | evm_variant::uint256
/// ::EVM_BLOCKHASH | evm_variant::int64 | evm_variant::uint256
/// ::EVM_STORAGE | evm_variant::uint256 | evm_variant::uint256?
typedef union evm_variant (*evm_query_fn)(struct evm_env* env,
enum evm_query_key key,