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// 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.
package trace
import (
"fmt"
"internal/trace"
"internal/trace/traceviewer"
tracev2 "internal/trace/v2"
"time"
)
// viewerFrames returns the frames of the stack of ev. The given frame slice is
// used to store the frames to reduce allocations.
func viewerFrames(stk tracev2.Stack) []*trace.Frame {
var frames []*trace.Frame
stk.Frames(func(f tracev2.StackFrame) bool {
frames = append(frames, &trace.Frame{
PC: f.PC,
Fn: f.Func,
File: f.File,
Line: int(f.Line),
})
return true
})
return frames
}
func viewerGState(state tracev2.GoState, inMarkAssist bool) traceviewer.GState {
switch state {
case tracev2.GoUndetermined:
return traceviewer.GDead
case tracev2.GoNotExist:
return traceviewer.GDead
case tracev2.GoRunnable:
return traceviewer.GRunnable
case tracev2.GoRunning:
return traceviewer.GRunning
case tracev2.GoWaiting:
if inMarkAssist {
return traceviewer.GWaitingGC
}
return traceviewer.GWaiting
case tracev2.GoSyscall:
// N.B. A goroutine in a syscall is considered "executing" (state.Executing() == true).
return traceviewer.GRunning
default:
panic(fmt.Sprintf("unknown GoState: %s", state.String()))
}
}
func viewerTime(t time.Duration) float64 {
return float64(t) / float64(time.Microsecond)
}