/
server_handler.go
209 lines (175 loc) · 5.14 KB
/
server_handler.go
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package parallel_support
import (
"io"
"os"
"sync"
"github.com/onsi/ginkgo/v2/reporters"
"github.com/onsi/ginkgo/v2/types"
)
type Void struct{}
var voidReceiver *Void = &Void{}
var voidSender Void
// ServerHandler is an RPC-compatible handler that is shared between the http server and the rpc server.
// It handles all the business logic to avoid duplication between the two servers
type ServerHandler struct {
done chan interface{}
outputDestination io.Writer
reporter reporters.Reporter
alives []func() bool
lock *sync.Mutex
beforeSuiteState BeforeSuiteState
parallelTotal int
counter int
counterLock *sync.Mutex
shouldAbort bool
numSuiteDidBegins int
numSuiteDidEnds int
aggregatedReport types.Report
reportHoldingArea []types.SpecReport
}
func newServerHandler(parallelTotal int, reporter reporters.Reporter) *ServerHandler {
return &ServerHandler{
reporter: reporter,
lock: &sync.Mutex{},
counterLock: &sync.Mutex{},
alives: make([]func() bool, parallelTotal),
beforeSuiteState: BeforeSuiteState{Data: nil, State: types.SpecStateInvalid},
parallelTotal: parallelTotal,
outputDestination: os.Stdout,
done: make(chan interface{}),
}
}
func (handler *ServerHandler) SpecSuiteWillBegin(report types.Report, _ *Void) error {
handler.lock.Lock()
defer handler.lock.Unlock()
handler.numSuiteDidBegins += 1
// all summaries are identical, so it's fine to simply emit the last one of these
if handler.numSuiteDidBegins == handler.parallelTotal {
handler.reporter.SuiteWillBegin(report)
for _, summary := range handler.reportHoldingArea {
handler.reporter.WillRun(summary)
handler.reporter.DidRun(summary)
}
handler.reportHoldingArea = nil
}
return nil
}
func (handler *ServerHandler) DidRun(report types.SpecReport, _ *Void) error {
handler.lock.Lock()
defer handler.lock.Unlock()
if handler.numSuiteDidBegins == handler.parallelTotal {
handler.reporter.WillRun(report)
handler.reporter.DidRun(report)
} else {
handler.reportHoldingArea = append(handler.reportHoldingArea, report)
}
return nil
}
func (handler *ServerHandler) SpecSuiteDidEnd(report types.Report, _ *Void) error {
handler.lock.Lock()
defer handler.lock.Unlock()
handler.numSuiteDidEnds += 1
if handler.numSuiteDidEnds == 1 {
handler.aggregatedReport = report
} else {
handler.aggregatedReport = handler.aggregatedReport.Add(report)
}
if handler.numSuiteDidEnds == handler.parallelTotal {
handler.reporter.SuiteDidEnd(handler.aggregatedReport)
close(handler.done)
}
return nil
}
func (handler *ServerHandler) EmitOutput(output []byte, n *int) error {
var err error
*n, err = handler.outputDestination.Write(output)
return err
}
func (handler *ServerHandler) EmitProgressReport(report types.ProgressReport, _ *Void) error {
handler.lock.Lock()
defer handler.lock.Unlock()
handler.reporter.EmitProgressReport(report)
return nil
}
func (handler *ServerHandler) registerAlive(proc int, alive func() bool) {
handler.lock.Lock()
defer handler.lock.Unlock()
handler.alives[proc-1] = alive
}
func (handler *ServerHandler) procIsAlive(proc int) bool {
handler.lock.Lock()
defer handler.lock.Unlock()
alive := handler.alives[proc-1]
if alive == nil {
return true
}
return alive()
}
func (handler *ServerHandler) haveNonprimaryProcsFinished() bool {
for i := 2; i <= handler.parallelTotal; i++ {
if handler.procIsAlive(i) {
return false
}
}
return true
}
func (handler *ServerHandler) BeforeSuiteCompleted(beforeSuiteState BeforeSuiteState, _ *Void) error {
handler.lock.Lock()
defer handler.lock.Unlock()
handler.beforeSuiteState = beforeSuiteState
return nil
}
func (handler *ServerHandler) BeforeSuiteState(_ Void, beforeSuiteState *BeforeSuiteState) error {
proc1IsAlive := handler.procIsAlive(1)
handler.lock.Lock()
defer handler.lock.Unlock()
if handler.beforeSuiteState.State == types.SpecStateInvalid {
if proc1IsAlive {
return ErrorEarly
} else {
return ErrorGone
}
}
*beforeSuiteState = handler.beforeSuiteState
return nil
}
func (handler *ServerHandler) HaveNonprimaryProcsFinished(_ Void, _ *Void) error {
if handler.haveNonprimaryProcsFinished() {
return nil
} else {
return ErrorEarly
}
}
func (handler *ServerHandler) AggregatedNonprimaryProcsReport(_ Void, report *types.Report) error {
if handler.haveNonprimaryProcsFinished() {
handler.lock.Lock()
defer handler.lock.Unlock()
if handler.numSuiteDidEnds == handler.parallelTotal-1 {
*report = handler.aggregatedReport
return nil
} else {
return ErrorGone
}
} else {
return ErrorEarly
}
}
func (handler *ServerHandler) Counter(_ Void, counter *int) error {
handler.counterLock.Lock()
defer handler.counterLock.Unlock()
*counter = handler.counter
handler.counter++
return nil
}
func (handler *ServerHandler) Abort(_ Void, _ *Void) error {
handler.lock.Lock()
defer handler.lock.Unlock()
handler.shouldAbort = true
return nil
}
func (handler *ServerHandler) ShouldAbort(_ Void, shouldAbort *bool) error {
handler.lock.Lock()
defer handler.lock.Unlock()
*shouldAbort = handler.shouldAbort
return nil
}