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/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*-
* vim: sw=2 ts=4 et :
*/
#include "TestDemon.h"
#include <stdlib.h>
#include "IPDLUnitTests.h" // fail etc.
#if defined(XP_UNIX)
# include <sys/time.h>
# include <unistd.h>
#else
# include <time.h>
# include <windows.h>
#endif
namespace mozilla {
namespace _ipdltest {
const int kMaxStackHeight = 4;
static LazyLogModule sLogModule("demon");
#define DEMON_LOG(...) MOZ_LOG(sLogModule, LogLevel::Debug, (__VA_ARGS__))
static int gStackHeight = 0;
static bool gFlushStack = false;
static int Choose(int count) {
#if defined(XP_UNIX)
return random() % count;
#else
return rand() % count;
#endif
}
//-----------------------------------------------------------------------------
// parent
TestDemonParent::TestDemonParent() : mDone(false), mIncoming(), mOutgoing() {
MOZ_COUNT_CTOR(TestDemonParent);
}
TestDemonParent::~TestDemonParent() { MOZ_COUNT_DTOR(TestDemonParent); }
void TestDemonParent::Main() {
if (!getenv("MOZ_TEST_IPC_DEMON")) {
QuitParent();
return;
}
#if defined(XP_UNIX)
srandom(time(nullptr));
#else
srand(time(nullptr));
#endif
DEMON_LOG("Start demon");
if (!SendStart()) fail("sending Start");
RunUnlimitedSequence();
}
#ifdef DEBUG
bool TestDemonParent::ShouldContinueFromReplyTimeout() {
return Choose(2) == 0;
}
bool TestDemonParent::ArtificialTimeout() { return Choose(5) == 0; }
void TestDemonParent::ArtificialSleep() {
if (Choose(2) == 0) {
// Sleep for anywhere from 0 to 100 milliseconds.
unsigned micros = Choose(100) * 1000;
# ifdef XP_UNIX
usleep(micros);
# else
Sleep(micros / 1000);
# endif
}
}
#endif
mozilla::ipc::IPCResult TestDemonParent::RecvAsyncMessage(const int& n) {
DEMON_LOG("Start RecvAsync [%d]", n);
MOZ_ASSERT(n == mIncoming[0]);
mIncoming[0]++;
RunLimitedSequence();
DEMON_LOG("End RecvAsync [%d]", n);
return IPC_OK();
}
mozilla::ipc::IPCResult TestDemonParent::RecvHiPrioSyncMessage() {
DEMON_LOG("Start RecvHiPrioSyncMessage");
RunLimitedSequence();
DEMON_LOG("End RecvHiPrioSyncMessage");
return IPC_OK();
}
mozilla::ipc::IPCResult TestDemonParent::RecvSyncMessage(const int& n) {
DEMON_LOG("Start RecvSync [%d]", n);
MOZ_ASSERT(n == mIncoming[0]);
mIncoming[0]++;
RunLimitedSequence(ASYNC_ONLY);
DEMON_LOG("End RecvSync [%d]", n);
return IPC_OK();
}
mozilla::ipc::IPCResult TestDemonParent::RecvUrgentAsyncMessage(const int& n) {
DEMON_LOG("Start RecvUrgentAsyncMessage [%d]", n);
MOZ_ASSERT(n == mIncoming[2]);
mIncoming[2]++;
RunLimitedSequence(ASYNC_ONLY);
DEMON_LOG("End RecvUrgentAsyncMessage [%d]", n);
return IPC_OK();
}
mozilla::ipc::IPCResult TestDemonParent::RecvUrgentSyncMessage(const int& n) {
DEMON_LOG("Start RecvUrgentSyncMessage [%d]", n);
MOZ_ASSERT(n == mIncoming[2]);
mIncoming[2]++;
RunLimitedSequence(ASYNC_ONLY);
DEMON_LOG("End RecvUrgentSyncMessage [%d]", n);
return IPC_OK();
}
void TestDemonParent::RunUnlimitedSequence() {
if (mDone) {
return;
}
gFlushStack = false;
DoAction();
MessageLoop::current()->PostTask(NewNonOwningRunnableMethod(
"_ipdltest::TestDemonParent::RunUnlimitedSequence", this,
&TestDemonParent::RunUnlimitedSequence));
}
void TestDemonParent::RunLimitedSequence(int flags) {
if (gStackHeight >= kMaxStackHeight) {
return;
}
gStackHeight++;
int count = Choose(20);
for (int i = 0; i < count; i++) {
if (!DoAction(flags)) {
gFlushStack = true;
}
if (gFlushStack) {
gStackHeight--;
return;
}
}
gStackHeight--;
}
static bool AllowAsync(int outgoing, int incoming) {
return incoming >= outgoing - 5;
}
bool TestDemonParent::DoAction(int flags) {
if (flags & ASYNC_ONLY) {
if (AllowAsync(mOutgoing[0], mIncoming[0])) {
DEMON_LOG("SendAsyncMessage [%d]", mOutgoing[0]);
return SendAsyncMessage(mOutgoing[0]++);
} else {
return true;
}
} else {
switch (Choose(3)) {
case 0:
if (AllowAsync(mOutgoing[0], mIncoming[0])) {
DEMON_LOG("SendAsyncMessage [%d]", mOutgoing[0]);
return SendAsyncMessage(mOutgoing[0]++);
} else {
return true;
}
case 1: {
DEMON_LOG("Start SendHiPrioSyncMessage");
bool r = SendHiPrioSyncMessage();
DEMON_LOG("End SendHiPrioSyncMessage result=%d", r);
return r;
}
case 2:
DEMON_LOG("Cancel");
GetIPCChannel()->CancelCurrentTransaction();
return true;
}
}
MOZ_CRASH();
return false;
}
//-----------------------------------------------------------------------------
// child
TestDemonChild::TestDemonChild() : mIncoming(), mOutgoing() {
MOZ_COUNT_CTOR(TestDemonChild);
}
TestDemonChild::~TestDemonChild() { MOZ_COUNT_DTOR(TestDemonChild); }
mozilla::ipc::IPCResult TestDemonChild::RecvStart() {
#ifdef XP_UNIX
srandom(time(nullptr));
#else
srand(time(nullptr));
#endif
DEMON_LOG("RecvStart");
RunUnlimitedSequence();
return IPC_OK();
}
#ifdef DEBUG
void TestDemonChild::ArtificialSleep() {
if (Choose(2) == 0) {
// Sleep for anywhere from 0 to 100 milliseconds.
unsigned micros = Choose(100) * 1000;
# ifdef XP_UNIX
usleep(micros);
# else
Sleep(micros / 1000);
# endif
}
}
#endif
mozilla::ipc::IPCResult TestDemonChild::RecvAsyncMessage(const int& n) {
DEMON_LOG("Start RecvAsyncMessage [%d]", n);
MOZ_ASSERT(n == mIncoming[0]);
mIncoming[0]++;
RunLimitedSequence();
DEMON_LOG("End RecvAsyncMessage [%d]", n);
return IPC_OK();
}
mozilla::ipc::IPCResult TestDemonChild::RecvHiPrioSyncMessage() {
DEMON_LOG("Start RecvHiPrioSyncMessage");
RunLimitedSequence();
DEMON_LOG("End RecvHiPrioSyncMessage");
return IPC_OK();
}
void TestDemonChild::RunUnlimitedSequence() {
gFlushStack = false;
DoAction();
MessageLoop::current()->PostTask(NewNonOwningRunnableMethod(
"_ipdltest::TestDemonChild::RunUnlimitedSequence", this,
&TestDemonChild::RunUnlimitedSequence));
}
void TestDemonChild::RunLimitedSequence() {
if (gStackHeight >= kMaxStackHeight) {
return;
}
gStackHeight++;
int count = Choose(20);
for (int i = 0; i < count; i++) {
if (!DoAction()) {
gFlushStack = true;
}
if (gFlushStack) {
gStackHeight--;
return;
}
}
gStackHeight--;
}
bool TestDemonChild::DoAction() {
switch (Choose(6)) {
case 0:
if (AllowAsync(mOutgoing[0], mIncoming[0])) {
DEMON_LOG("SendAsyncMessage [%d]", mOutgoing[0]);
return SendAsyncMessage(mOutgoing[0]++);
} else {
return true;
}
case 1: {
DEMON_LOG("Start SendHiPrioSyncMessage");
bool r = SendHiPrioSyncMessage();
DEMON_LOG("End SendHiPrioSyncMessage result=%d", r);
return r;
}
case 2: {
DEMON_LOG("Start SendSyncMessage [%d]", mOutgoing[0]);
bool r = SendSyncMessage(mOutgoing[0]++);
switch (GetIPCChannel()->LastSendError()) {
case SyncSendError::PreviousTimeout:
case SyncSendError::SendingCPOWWhileDispatchingSync:
case SyncSendError::SendingCPOWWhileDispatchingUrgent:
case SyncSendError::NotConnectedBeforeSend:
case SyncSendError::CancelledBeforeSend:
mOutgoing[0]--;
break;
default:
break;
}
DEMON_LOG("End SendSyncMessage result=%d", r);
return r;
}
case 3:
DEMON_LOG("SendUrgentAsyncMessage [%d]", mOutgoing[2]);
return SendUrgentAsyncMessage(mOutgoing[2]++);
case 4: {
DEMON_LOG("Start SendUrgentSyncMessage [%d]", mOutgoing[2]);
bool r = SendUrgentSyncMessage(mOutgoing[2]++);
switch (GetIPCChannel()->LastSendError()) {
case SyncSendError::PreviousTimeout:
case SyncSendError::SendingCPOWWhileDispatchingSync:
case SyncSendError::SendingCPOWWhileDispatchingUrgent:
case SyncSendError::NotConnectedBeforeSend:
case SyncSendError::CancelledBeforeSend:
mOutgoing[2]--;
break;
default:
break;
}
DEMON_LOG("End SendUrgentSyncMessage result=%d", r);
return r;
}
case 5:
DEMON_LOG("Cancel");
GetIPCChannel()->CancelCurrentTransaction();
return true;
}
MOZ_CRASH();
return false;
}
} // namespace _ipdltest
} // namespace mozilla
|
