Last active
August 25, 2024 12:57
-
-
Save ityonemo/c662c329011bfae7c28aa12cbf2386b2 to your computer and use it in GitHub Desktop.
Enterprise LibCurl with Zigler
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| Mix.install([ | |
| {:zigler, "~> 0.13"} | |
| ]) | |
| Logger.configure(level: :warning) | |
| defmodule Main do | |
| use Zig, | |
| otp_app: :zigler, | |
| c: [link_lib: {:system, "curl"}], | |
| nifs: [example: [:dirty_io]] | |
| ~Z""" | |
| const std = @import("std"); | |
| const curl = @cImport({ | |
| @cInclude("curl/curl.h"); | |
| }); | |
| const beam = @import("beam"); | |
| const EzOptions = enum (c_int) { | |
| user_agent = curl.CURLOPT_USERAGENT, | |
| url = curl.CURLOPT_URL, | |
| }; | |
| const ExampleOptions = struct{ | |
| user_agent: ?[]const u8 = "libcurl", | |
| url: ?[]const u8 = null | |
| }; | |
| pub fn example(opts: ExampleOptions) !void { | |
| const c = curl.curl_easy_init() orelse return error.initialization_failure; | |
| const tags = comptime std.meta.tags(EzOptions); | |
| inline for (tags) | field | { | |
| if (@field(opts, @tagName(field))) | opt | { | |
| // annoying, perform null termination, better support for null-terminated | |
| // slices will drop in zigler 0.14 | |
| const opt_str: [:0]u8 = try beam.allocator.allocWithOptions(u8, opt.len + 1, null, 0); | |
| defer beam.allocator.free(opt_str); | |
| @memcpy(opt_str[0..opt.len], opt); | |
| opt_str[opt.len] = 0; | |
| _ = curl.curl_easy_setopt(c, @intFromEnum(field), opt_str.ptr); | |
| } | |
| } | |
| _ = curl.curl_easy_perform(c); | |
| } | |
| """ | |
| end | |
| Main.example(url: "https://httpbin.org/user-agent") | |
| Main.example(url: "https://httpbin.org/user-agent", user_agent: "foobarbaz") |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment