mirror of
https://github.com/pezkuwichain/pezkuwi-subxt.git
synced 2026-05-06 05:38:00 +00:00
Alexander Theißen
c470e9d11d
* Give chain extensions the ability to store some temporary values * Update frame/contracts/src/wasm/runtime.rs Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com> * Rename func_id -> id * Replace `id` param by two functions on `env` Co-authored-by: Hernando Castano <HCastano@users.noreply.github.com>
86 lines
2.5 KiB
WebAssembly Text Format
86 lines
2.5 KiB
WebAssembly Text Format
;; Call chain extension two times with the specified func_ids
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;; It then calls itself once
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(module
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(import "seal0" "seal_call_chain_extension"
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(func $seal_call_chain_extension (param i32 i32 i32 i32 i32) (result i32))
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)
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(import "seal0" "seal_input" (func $seal_input (param i32 i32)))
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(import "seal0" "seal_address" (func $seal_address (param i32 i32)))
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(import "seal1" "seal_call" (func $seal_call (param i32 i32 i64 i32 i32 i32 i32 i32) (result i32)))
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(import "env" "memory" (memory 16 16))
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(func $assert (param i32)
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(block $ok
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(br_if $ok (get_local 0))
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(unreachable)
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)
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)
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;; [0, 4) len of input buffer: 8 byte (func_ids) + 1byte (stop_recurse)
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(data (i32.const 0) "\09")
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;; [4, 16) buffer for input
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;; [16, 48] buffer for self address
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;; [48, 52] len of self address buffer
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(data (i32.const 48) "\20")
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(func (export "deploy"))
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(func (export "call")
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;; input: (func_id1: i32, func_id2: i32, stop_recurse: i8)
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(call $seal_input (i32.const 4) (i32.const 0))
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(call $seal_call_chain_extension
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(i32.load (i32.const 4)) ;; id
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(i32.const 0) ;; input_ptr
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(i32.const 0) ;; input_len
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(i32.const 0xffffffff) ;; u32 max sentinel value: do not copy output
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(i32.const 0) ;; output_len_ptr
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)
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drop
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(call $seal_call_chain_extension
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(i32.load (i32.const 8)) ;; _id
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(i32.const 0) ;; input_ptr
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(i32.const 0) ;; input_len
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(i32.const 0xffffffff) ;; u32 max sentinel value: do not copy output
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(i32.const 0) ;; output_len_ptr
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)
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drop
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(if (i32.eqz (i32.load8_u (i32.const 12)))
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(then
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;; stop recursion
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(i32.store8 (i32.const 12) (i32.const 1))
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;; load own address into buffer
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(call $seal_address (i32.const 16) (i32.const 48))
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;; call function 2 + 3 of chainext 3 next time
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;; (3 << 16) | 2
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;; (3 << 16) | 3
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(i32.store (i32.const 4) (i32.const 196610))
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(i32.store (i32.const 8) (i32.const 196611))
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;; call self
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(call $seal_call
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(i32.const 8) ;; Set ALLOW_REENTRY
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(i32.const 16) ;; Pointer to "callee" address.
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(i64.const 0) ;; How much gas to devote for the execution. 0 = all.
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(i32.const 512) ;; Pointer to the buffer with value to transfer
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(i32.const 4) ;; Pointer to input data buffer address
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(i32.load (i32.const 0)) ;; Length of input data buffer
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(i32.const 4294967295) ;; u32 max value is the sentinel value: do not copy output
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(i32.const 0) ;; Length is ignored in this case
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)
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;; check that call succeeded of call
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(call $assert (i32.eqz))
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)
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(else)
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)
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)
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)
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