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* feat: add CompiledPlugin * ci: pin zig 0.13.0 * Apply suggestions from code review Co-authored-by: Steve Manuel <[email protected]> --------- Co-authored-by: Steve Manuel <[email protected]>
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Original file line number | Diff line number | Diff line change |
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@@ -0,0 +1,54 @@ | ||
const std = @import("std"); | ||
const Manifest = @import("manifest.zig").Manifest; | ||
const Function = @import("function.zig"); | ||
const CancelHandle = @import("cancel_handle.zig"); | ||
const c = @import("ffi.zig"); | ||
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const Self = @This(); | ||
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ptr: *c.ExtismCompiledPlugin, | ||
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// We have to use this until ziglang/zig#2647 is resolved. | ||
error_info: ?[]const u8, | ||
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/// Create a new plugin from a WASM module | ||
pub fn init(allocator: std.mem.Allocator, data: []const u8, functions: []const Function, wasi: bool) !Self { | ||
var plugin: ?*c.ExtismCompiledPlugin = null; | ||
var errmsg: [*c]u8 = null; | ||
if (functions.len > 0) { | ||
var funcPtrs = try allocator.alloc(?*c.ExtismFunction, functions.len); | ||
defer allocator.free(funcPtrs); | ||
var i: usize = 0; | ||
for (functions) |function| { | ||
funcPtrs[i] = function.c_func; | ||
i += 1; | ||
} | ||
plugin = c.extism_compiled_plugin_new(data.ptr, @as(u64, data.len), &funcPtrs[0], functions.len, wasi, &errmsg); | ||
} else { | ||
plugin = c.extism_compiled_plugin_new(data.ptr, @as(u64, data.len), null, 0, wasi, &errmsg); | ||
} | ||
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if (plugin == null) { | ||
// TODO: figure out what to do with this error | ||
std.debug.print("extism_compiled_plugin_new: {s}\n", .{ | ||
errmsg, | ||
}); | ||
c.extism_plugin_new_error_free(errmsg); | ||
return error.PluginLoadFailed; | ||
} | ||
return Self{ | ||
.ptr = plugin.?, | ||
.error_info = null, | ||
}; | ||
} | ||
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/// Create a new plugin from the given manifest | ||
pub fn initFromManifest(allocator: std.mem.Allocator, manifest: Manifest, functions: []const Function, wasi: bool) !Self { | ||
const json = try std.json.stringifyAlloc(allocator, manifest, .{ .emit_null_optional_fields = false }); | ||
defer allocator.free(json); | ||
return init(allocator, json, functions, wasi); | ||
} | ||
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pub fn deinit(self: *Self) void { | ||
c.extism_compiled_plugin_free(self.ptr); | ||
} |
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