`

	projidHeader = `# This is a /etc/projid header
xxxxxx:1048579
`
	projid1 = `volume1048577:1048577
`
	projid2 = `volume1048577:1048577
volume1048580:1048580
`
	projid3 = `volume1048577:1048577
volume1048580:1048580
volume1048581:1048581
`
	projid4 = `volume1048577:1048577
volume1048581:1048581
`
	projid5 = `volume1048581:1048581
`
)

// limitations under the License.

package main

import (
	"context"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"
	"syscall"

	"github.com/gorilla/mux"
)

const (
	projID     = "test-project"
	projNumber = "123456789"
	instance   = "test-instance"
	instID     = "987654321"
	zone       = "us-west1-c"

	metaPrefix     = "/computeMetadata/v1"

	b0.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoSyscall)
	b0.Event("ProcStatus", trace.ProcID(1), go122.ProcIdle)
	b0.Event("ProcStart", trace.ProcID(1), testgen.Seq(1))
	b0.Event("GoSyscallEndBlocked")

	// A running goroutine stole P0 at the generation boundary.
	b1 := g.Batch(trace.ThreadID(1), 0)
	b1.Event("ProcStatus", trace.ProcID(2), go122.ProcRunning)
	b1.Event("GoStatus", trace.GoID(2), trace.ThreadID(1), go122.GoRunning)

	globalMetricGenerator
	procRangeGenerator
	stackSampleGenerator[trace.ProcID]
	logEventGenerator[trace.ProcID]

	gStates   map[trace.GoID]*gState[trace.ProcID]
	inSyscall map[trace.ProcID]*gState[trace.ProcID]
	maxProc   trace.ProcID
}

func newProcGenerator() *procGenerator {
	pg := new(procGenerator)
	rg := func(ev *trace.Event) trace.ProcID {
		return ev.Proc()
	}
	pg.stackSampleGenerator.getResource = rg

	b0 := g.Batch(trace.ThreadID(0), 0)
	b0.Event("ProcStatus", trace.ProcID(1), go122.ProcIdle)
	b0.Event("ProcStatus", trace.ProcID(0), go122.ProcRunning)
	b0.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoRunning)
	b0.Event("GoSyscallBegin", testgen.Seq(1), testgen.NoStack)
	b0.Event("ProcStart", trace.ProcID(1), testgen.Seq(1))
	b0.Event("GoSyscallEndBlocked")

	// A bare M steals the goroutine's P.

	// acquired a new P.
	b0 := g.Batch(trace.ThreadID(0), 0)
	b0.Event("ProcStatus", trace.ProcID(1), go122.ProcRunning)
	b0.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoSyscall)
	b0.Event("GoSyscallEndBlocked")

	// A running goroutine stole P0 at the generation boundary.
	b1 := g.Batch(trace.ThreadID(1), 0)
	b1.Event("ProcStatus", trace.ProcID(2), go122.ProcRunning)
	b1.Event("GoStatus", trace.GoID(2), trace.ThreadID(1), go122.GoRunning)

	b0.Event("ProcStatus", trace.ProcID(1), go122.ProcIdle)
	b0.Event("ProcStart", trace.ProcID(1), testgen.Seq(1))
	b0.Event("GoSyscallEndBlocked")

	// A bare M stole the goroutine's P at the generation boundary.
	b1 := g.Batch(trace.ThreadID(1), 0)
	b1.Event("ProcStatus", trace.ProcID(0), go122.ProcSyscallAbandoned)
	b1.Event("ProcSteal", trace.ProcID(0), testgen.Seq(1), trace.ThreadID(0))

	b0 := g.Batch(trace.ThreadID(0), 0)
	b0.Event("ProcStatus", trace.ProcID(0), go122.ProcRunning)
	b0.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoRunning)
	b0.Event("GoSyscallBegin", testgen.Seq(1), testgen.NoStack)
	b0.Event("GoSyscallEndBlocked")

	// A running goroutine steals proc 0.
	b1 := g.Batch(trace.ThreadID(1), 0)
	b1.Event("ProcStatus", trace.ProcID(2), go122.ProcRunning)

	b10 := g1.Batch(trace.ThreadID(0), 0)
	b10.Event("ProcStatus", trace.ProcID(0), go122.ProcRunning)
	b10.Event("GoStatus", trace.GoID(1), trace.ThreadID(0), go122.GoRunning)
	b10.Event("GoStop", "whatever", testgen.NoStack)

	// The running goroutine gets unblocked.
	b11 := g1.Batch(trace.ThreadID(1), 0)
	b11.Event("ProcStatus", trace.ProcID(1), go122.ProcRunning)
	b11.Event("GoStart", trace.GoID(1), testgen.Seq(1))

	// have a self-steal here potentially that doesn't make
	// sense.
	b1 := g.Batch(trace.ThreadID(0), 0)
	b1.Event("ProcStatus", trace.ProcID(1), go122.ProcIdle)
	b1.Event("ProcStart", trace.ProcID(1), testgen.Seq(1))
	b1.Event("ProcSteal", trace.ProcID(0), testgen.Seq(3), trace.ThreadID(0))