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571c057549
wasm-micro-runtime/language-bindings/python/wamr-api/samples/native-symbol/README.md
tonibofarull 571c057549
wamr-python: Enable debugging WASM and grant dir access (#2449) 
- Enable debugging a WASM loaded and executed from Python.
- Expose API to enable access to list of host directories. Similar to --dir in iwasm.
- Add another python language binding sample: native-symbol.
2023-08-15 10:32:43 +08:00

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Native Symbol

This sample demonstrates how to declare a Python function as NativeSymbol.

Steps of the example:

  1. Load WASM from Python
  2. Call c_func from WASM.
  3. c_func calls python_func from Python.
  4. python_func calls add from WASM.
  5. Result shown by Python.

Build

Follow instructions build wamr Python package.

Compile WASM app example,

./compile.sh

Run sample

python main.py

Output:

python: calling c_func(10)
c: in c_func with input: 10
c: calling python_func(11)
python: in python_func with input: 11
python: calling add(11, 1000)
python: result from add: 1011
c: result from python_func: 1012
c: returning 1013
python: result from c_func: 1013
deleting ExecEnv
deleting Instance
deleting Module
deleting Engine