Commit b40045e5dd6e7c9e7c0f173d33b0b878ebf55c2b | lib/zig/tracer

author	Meghan Denny <hello@nektro.net> 2026-06-30 18:44:57 -07:00
committer	Meghan Denny <hello@nektro.net> 2026-06-30 18:44:57 -07:00
log	b40045e5dd6e7c9e7c0f173d33b0b878ebf55c2b
tree	d0e52b86636ce65532cc36d0945796072e9c8d80
parent	04c3ad0fbdfb57dea27da0c8cbb75e2539837c92
signature	Signed by SSH key SHA256:4hHJbtBRU58AYXwjL7fkz2fnQHdiye8x1QpTCQ0sHNw

disable if traces_endpoint isn't passed

1 files changed, 6 insertions(+), 4 deletions(-)

src/otel.zig+6-4

...	...	@@ -51,7 +51,7 @@ pub fn deinit() void {
51	51	}
52	52
53	53	threadlocal var allocator: std.mem.Allocator = undefined;
54		threadlocal var traces_endpoint: std.Uri = undefined;
	54	threadlocal var traces_endpoint: ?std.Uri = null;
55	55	pub threadlocal var trace_id: [16]u8 = undefined;
56	56	threadlocal var prev_span_id: ?[8]u8 = undefined;
57	57	threadlocal var spans: std.ArrayListUnmanaged([]const u8) = .empty;
...	...	@@ -66,7 +66,7 @@ pub threadlocal var @"http.route": ?[]const u8 = null;
66	66	pub threadlocal var @"url.path": ?[]const u8 = null;
67	67	pub threadlocal var @"url.query": ?[]const u8 = null;
68	68
69		pub fn init_thread(args: struct { std.mem.Allocator, std.Uri }) !void {
	69	pub fn init_thread(args: struct { std.mem.Allocator, ?std.Uri }) !void {
70	70	allocator, traces_endpoint = args;
71	71	trace_id = nio.randomBytes(16);
72	72	prev_span_id = null;
...	...	@@ -77,6 +77,7 @@ pub fn deinit_thread() void {
77	77	spans.clearAndFree(allocator);
78	78	}
79	79	fn deinit_thread_inner() !void {
	80	if (traces_endpoint == null) return;
80	81	var instrumentation_scope: nio.AllocatingWriter = .init(allocator);
81	82	defer instrumentation_scope.deinit();
82	83	{
...	...	@@ -142,7 +143,7 @@ fn deinit_thread_inner() !void {
142	143	const io = root.io;
143	144	var client: std.http.Client = .{ .allocator = allocator, .io = io };
144	145	defer client.deinit();
145		var req = try client.request(.POST, traces_endpoint, .{
	146	var req = try client.request(.POST, traces_endpoint.?, .{
146	147	.headers = .{
147	148	.content_type = .{ .override = "application/x-protobuf" },
148	149	},
...	...	@@ -161,7 +162,7 @@ pub fn trace_begin(src: std.builtin.SourceLocation, comptime ifmt: []const u8, i
161	162	prev_span_id = span_id;
162	163	const fmt = "{s}:{d}:{d} ({s})" ++ ifmt;
163	164	const args = .{ src.file, src.line, src.column, src.fn_name } ++ iargs;
164		const name = std.fmt.allocPrint(allocator, fmt, args) catch "";
	165	const name = if (traces_endpoint == null) "" else std.fmt.allocPrint(allocator, fmt, args) catch "";
165	166	const time_start_ns: u64 = @intCast(time.nanoTimestamp()); // this will overflow 2554 July 21 23:34:33.709 Z
166	167
167	168	return .{
...	...	@@ -177,6 +178,7 @@ pub fn trace_end(ctx: tracer.Ctx) void {
177	178	prev_span_id = ctx.data.parent_id;
178	179	}
179	180	fn trace_end_inner(ctx: tracer.Ctx) !void {
	181	if (traces_endpoint == null) return;
180	182	var temp: nio.AllocatingWriter = .init(allocator);
181	183	const w = &temp;
182	184	defer if (ctx.data.name.len > 0) allocator.free(ctx.data.name);