| // Copyright 2023 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| // Code generated by "gen.bash" from internal/trace/v2; DO NOT EDIT. |
| |
| //go:build go1.21 |
| |
| // Regression test for an issue found in development. |
| // |
| // The issue is that EvUserTaskEnd events don't carry the |
| // task type with them, so the parser needs to track that |
| // information. But if the parser just tracks the string ID |
| // and not the string itself, that string ID may not be valid |
| // for use in future generations. |
| |
| package main |
| |
| import ( |
| "golang.org/x/exp/trace" |
| "golang.org/x/exp/trace/internal/event/go122" |
| testgen "golang.org/x/exp/trace/internal/testgen/go122" |
| ) |
| |
| func main() { |
| testgen.Main(gen) |
| } |
| |
| func gen(t *testgen.Trace) { |
| g1 := t.Generation(1) |
| |
| // A running goroutine emits a task begin. |
| b1 := g1.Batch(trace.ThreadID(0), 0) |
| b1.Event("ProcStatus", trace.ProcID(0), go122.ProcRunning) |
| b1.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoRunning) |
| b1.Event("UserTaskBegin", trace.TaskID(2), trace.TaskID(0) /* 0 means no parent, not background */, "my task", testgen.NoStack) |
| |
| g2 := t.Generation(2) |
| |
| // That same goroutine emits a task end in the following generation. |
| b2 := g2.Batch(trace.ThreadID(0), 5) |
| b2.Event("ProcStatus", trace.ProcID(0), go122.ProcRunning) |
| b2.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoRunning) |
| b2.Event("UserTaskEnd", trace.TaskID(2), testgen.NoStack) |
| } |