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https://github.com/extism/extism.git
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87be73570d
- Adds `ExtismContext` instead of global `PLUGINS` registry - Adds `extism_context_new`, `extism_context_free` and `extism_context_reset` - Requires updating nearly every SDK function to add context parameter - Renames some SDK functions to follow better naming conventions - `extism_plugin_register` -> `extism_plugin_new` - `extism_output_get` -> `extism_plugin_output_data` - `extism_output_length` -> `extism_plugin_output_length` - `extism_call` -> `extism_plugin_call` - Updates `extism_error` to return the context error when -1 issued for the plug-in ID - Adds `extism_plugin_free` to remove an existing plugin - Updates SDKs to include these functions - Updates SDK examples and comments Co-authored-by: Steve Manuel <steve@dylib.so>
37 lines
935 B
Python
37 lines
935 B
Python
import sys
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import os
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import json
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import hashlib
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sys.path.append(".")
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from extism import Plugin, Context
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if len(sys.argv) > 1:
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data = sys.argv[1].encode()
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else:
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data = b"some data from python!"
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# a Context provides a scope for plugins to be managed within. creating multiple contexts
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# is expected and groups plugins based on source/tenant/lifetime etc.
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with Context() as context:
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wasm = open("../wasm/code.wasm", 'rb').read()
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hash = hashlib.sha256(wasm).hexdigest()
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config = {"wasm": [{"data": wasm, "hash": hash}], "memory": {"max": 5}}
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plugin = context.plugin(config)
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# Call `count_vowels`
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j = json.loads(plugin.call("count_vowels", data))
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print("Number of vowels:", j["count"])
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# Compare against Python implementation
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def count_vowels(data):
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count = 0
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for c in data:
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if c in b'AaEeIiOoUu':
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count += 1
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return count
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assert (j["count"] == count_vowels(data))
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