mirror of
https://github.com/extism/extism.git
synced 2026-04-23 03:00:11 -04:00
889ec39e4d
Uses `std.json.ArrayHashMap` for stringifying. # Breaking Changes * Plugin.setConfig's `config` parameter's type changed to `std.json.ArrayHashMap([]const u8)` * WasmUrl's `header` field's type changed to `std.json.ArrayHashMap([]const u8)` * Manifest's `config` and `allowed_path` fields' types changed to `std.json.ArrayHashMap([]const u8)`
59 lines
2.5 KiB
Zig
59 lines
2.5 KiB
Zig
const std = @import("std");
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const testing = std.testing;
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const sdk = @import("extism");
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const Context = sdk.Context;
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const Plugin = sdk.Plugin;
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const CurrentPlugin = sdk.CurrentPlugin;
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const Function = sdk.Function;
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const manifest = sdk.manifest;
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export fn hello_world(plugin_ptr: ?*sdk.c.ExtismCurrentPlugin, inputs: [*c]const sdk.c.ExtismVal, n_inputs: u64, outputs: [*c]sdk.c.ExtismVal, n_outputs: u64, user_data: ?*anyopaque) callconv(.C) void {
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std.debug.print("Hello from Zig!\n", .{});
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const str_ud = @as([*:0]const u8, @ptrCast(user_data orelse unreachable));
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std.debug.print("User data: {s}\n", .{str_ud});
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var input_slice = inputs[0..n_inputs];
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var output_slice = outputs[0..n_outputs];
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var curr_plugin = CurrentPlugin.getCurrentPlugin(plugin_ptr orelse unreachable);
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const input = curr_plugin.inputBytes(&input_slice[0]);
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std.debug.print("input: {s}\n", .{input});
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output_slice[0] = input_slice[0];
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}
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pub fn main() !void {
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var gpa = std.heap.GeneralPurposeAllocator(.{}){};
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const allocator = gpa.allocator();
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_ = sdk.setLogFile("extism.log", .Debug);
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var context = Context.init();
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defer context.deinit();
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const wasmfile_manifest = manifest.WasmFile{ .path = "../wasm/code-functions.wasm" };
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const man = .{ .wasm = &[_]manifest.Wasm{.{ .wasm_file = wasmfile_manifest }} };
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var f = Function.init(
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"hello_world",
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&[_]sdk.c.ExtismValType{sdk.c.I64},
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&[_]sdk.c.ExtismValType{sdk.c.I64},
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&hello_world,
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@constCast(@as(*const anyopaque, @ptrCast("user data"))),
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);
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defer f.deinit();
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var my_plugin = try Plugin.initFromManifest(allocator, &context, man, &[_]Function{f}, true);
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// var my_plugin = try Plugin.init(allocator, &context, wasm, &[_]Function{f}, true);
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defer my_plugin.deinit();
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var config = std.json.ArrayHashMap([]const u8){};
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defer config.deinit(allocator);
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try config.map.put(allocator, "thing", "this is a really important thing");
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try my_plugin.setConfig(allocator, config);
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const input = "aeiouAEIOU____________________________________&smtms_y?" ** 1182;
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if (my_plugin.call("count_vowels", input)) |data| {
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std.debug.print("plugin output: {s}\n", .{data});
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} else |err| switch (err) {
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error.PluginCallFailed => {
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std.debug.print("plugin returned error: {s}\n", .{my_plugin.error_info.?});
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},
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}
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std.debug.print("extism version: {s}\n", .{sdk.extismVersion()});
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std.debug.print("has count_vowels: {}\n", .{my_plugin.hasFunction("count_vowels")});
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}
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