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events: create an EventHandlerData struct

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It simplifies the EventHandlerFunc creation and allows to insert user's
data.
This commit is contained in:
Pierre Tachoire
2024-06-19 17:03:40 +02:00
parent 522b293149
commit 1924f136c6
4 changed files with 107 additions and 59 deletions
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38
src/events/event.zig
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@@ -241,31 +241,23 @@ pub fn testExecFn(
}
pub const EventHandler = struct {
fn handle(event: ?*parser.Event, data: ?*anyopaque) callconv(.C) void {
if (data) |d| {
const func = parser.event_handler_cbk(d);
fn handle(event: ?*parser.Event, data: parser.EventHandlerData) void {
// TODO get the allocator by another way?
var res = CallbackResult.init(data.cbk.nat_ctx.alloc);
defer res.deinit();
// TODO get the allocator by another way?
var res = CallbackResult.init(func.nat_ctx.alloc);
defer res.deinit();
if (event) |evt| {
data.cbk.trycall(.{
Event.toInterface(evt) catch unreachable,
}, &res) catch |e| log.err("event handler error: {any}", .{e});
} else {
data.cbk.trycall(.{event}, &res) catch |e| log.err("event handler error: {any}", .{e});
}
if (event) |evt| {
func.trycall(.{
Event.toInterface(evt) catch unreachable,
}, &res) catch |e| log.err("event handler error: {any}", .{e});
} else {
func.trycall(.{event}, &res) catch |e| log.err("event handler error: {any}", .{e});
}
// in case of function error, we log the result and the trace.
if (!res.success) {
log.info("event handler error: {s}", .{res.result orelse "unknown"});
log.debug("{s}", .{res.stack orelse "no stack trace"});
}
// NOTE: we can not call func.deinit here
// b/c the handler can be called several times
// either on this dispatch event or in anoter one
// in case of function error, we log the result and the trace.
if (!res.success) {
log.info("event handler error: {s}", .{res.result orelse "unknown"});
log.debug("{s}", .{res.stack orelse "no stack trace"});
}
}
}.handle;