void VerifyProcTest(pid_t pid, pid_t tid,
bool (*ReadyFunc)(const backtrace_t*),
void (*VerifyFunc)(const backtrace_t*)) {
pid_t ptrace_tid;
if (tid < 0) {
ptrace_tid = pid;
} else {
ptrace_tid = tid;
}
uint64_t start = NanoTime();
bool verified = false;
do {
usleep(US_PER_MSEC);
if (ptrace(PTRACE_ATTACH, ptrace_tid, 0, 0) == 0) {
// Wait for the process to get to a stopping point.
WaitForStop(ptrace_tid);
backtrace_context_t context;
ASSERT_TRUE(backtrace_create_context(&context, pid, tid, 0));
if (ReadyFunc(context.backtrace)) {
VerifyFunc(context.backtrace);
verified = true;
}
backtrace_destroy_context(&context);
ASSERT_TRUE(ptrace(PTRACE_DETACH, ptrace_tid, 0, 0) == 0);
}
// If 5 seconds have passed, then we are done.
} while (!verified && (NanoTime() - start) <= 5 * NS_PER_SEC);
ASSERT_TRUE(verified);
}
void VerifyProcTest(pid_t pid, pid_t tid,
bool (*ReadyFunc)(Backtrace*),
void (*VerifyFunc)(Backtrace*)) {
pid_t ptrace_tid;
if (tid < 0) {
ptrace_tid = pid;
} else {
ptrace_tid = tid;
}
uint64_t start = NanoTime();
bool verified = false;
do {
usleep(US_PER_MSEC);
if (ptrace(PTRACE_ATTACH, ptrace_tid, 0, 0) == 0) {
// Wait for the process to get to a stopping point.
WaitForStop(ptrace_tid);
UniquePtr<Backtrace> backtrace(Backtrace::Create(pid, tid));
ASSERT_TRUE(backtrace->Unwind(0));
ASSERT_TRUE(backtrace.get() != NULL);
if (ReadyFunc(backtrace.get())) {
VerifyFunc(backtrace.get());
verified = true;
}
ASSERT_TRUE(ptrace(PTRACE_DETACH, ptrace_tid, 0, 0) == 0);
}
// If 5 seconds have passed, then we are done.
} while (!verified && (NanoTime() - start) <= 5 * NS_PER_SEC);
ASSERT_TRUE(verified);
}
bool WaitForNonZero(int32_t* value, uint64_t seconds) {
uint64_t start = NanoTime();
do {
if (android_atomic_acquire_load(value)) {
return true;
}
} while ((NanoTime() - start) < seconds * NS_PER_SEC);
return false;
}
void RunRepeatedly(Benchmark* b, int iterations) {
gBytesProcessed = 0;
ResetBenchmarkTiming();
uint64_t StartTimeNs = NanoTime();
b->RunFn(iterations);
// Catch us if we fail to log anything.
if ((gBenchmarkTotalTimeNs == 0) && (StartTimeNs != 0) &&
(gBenchmarkStartTimeNs == 0)) {
gBenchmarkTotalTimeNs = NanoTime() - StartTimeNs;
}
}
void WaitForStop(pid_t pid) {
uint64_t start = NanoTime();
siginfo_t si;
while (ptrace(PTRACE_GETSIGINFO, pid, 0, &si) < 0 && (errno == EINTR || errno == ESRCH)) {
if ((NanoTime() - start) > NS_PER_SEC) {
printf("The process did not get to a stopping point in 1 second.\n");
break;
}
usleep(US_PER_MSEC);
}
}
void Benchmark::RunRepeatedlyWithArg(int iterations, int arg) {
gBytesProcessed = 0;
gBenchmarkTotalTimeNs = 0;
gBenchmarkStartTimeNs = NanoTime();
if (fn_ != NULL) {
fn_(iterations);
} else {
fn_range_(iterations, arg);
}
if (gBenchmarkStartTimeNs != 0) {
gBenchmarkTotalTimeNs += NanoTime() - gBenchmarkStartTimeNs;
}
}
void Run(Benchmark* b) {
// run once in case it's expensive
unsigned iterations = 1;
uint64_t s = NanoTime();
RunRepeatedly(b, iterations);
s = NanoTime() - s;
while (s < 2e9 && gBenchmarkTotalTimeNs < 1e9 && iterations < 1e9) {
unsigned last = iterations;
if (gBenchmarkTotalTimeNs / iterations == 0) {
iterations = 1e9;
} else {
iterations = 1e9 / (gBenchmarkTotalTimeNs / iterations);
}
iterations =
std::max(last + 1, std::min(iterations + iterations / 2, 100 * last));
iterations = Round(iterations);
s = NanoTime();
RunRepeatedly(b, iterations);
s = NanoTime() - s;
}
char throughput[100];
throughput[0] = '\0';
if (gBenchmarkTotalTimeNs > 0 && gBytesProcessed > 0) {
double mib_processed = static_cast<double>(gBytesProcessed) / 1e6;
double seconds = static_cast<double>(gBenchmarkTotalTimeNs) / 1e9;
snprintf(throughput, sizeof(throughput), " %8.2f MiB/s",
mib_processed / seconds);
}
char full_name[100];
snprintf(full_name, sizeof(full_name), "%s%s%s", b->Name(),
b->ArgName() ? "/" : "", b->ArgName() ? b->ArgName() : "");
uint64_t mean = gBenchmarkTotalTimeNs / iterations;
uint64_t sdev = 0;
if (gBenchmarkNum == iterations) {
mean = gBenchmarkTotalTimeNs / gBenchmarkNum;
uint64_t nXvariance = gBenchmarkTotalTimeNsSquared * gBenchmarkNum -
(gBenchmarkTotalTimeNs * gBenchmarkTotalTimeNs);
sdev = (sqrt((double)nXvariance) / gBenchmarkNum / gBenchmarkNum) + 0.5;
}
if (mean > (10000 * sdev)) {
printf("%-25s %10" PRIu64 " %10" PRIu64 "%s\n", full_name,
static_cast<uint64_t>(iterations), mean, throughput);
} else {
printf("%-25s %10" PRIu64 " %10" PRIu64 "(\317\203%" PRIu64 ")%s\n",
full_name, static_cast<uint64_t>(iterations), mean, sdev, throughput);
}
fflush(stdout);
}
void StopBenchmarkTiming(void) {
if (gBenchmarkStartTimeNs != 0) {
int64_t diff = NanoTime() - gBenchmarkStartTimeNs;
gBenchmarkTotalTimeNs += diff;
gBenchmarkTotalTimeNsSquared += diff * diff;
++gBenchmarkNum;
}
gBenchmarkStartTimeNs = 0;
}
TEST(libbacktrace, ptrace_threads) {
pid_t pid;
if ((pid = fork()) == 0) {
for (size_t i = 0; i < NUM_PTRACE_THREADS; i++) {
pthread_attr_t attr;
pthread_attr_init(&attr);
pthread_attr_setdetachstate(&attr, PTHREAD_CREATE_DETACHED);
pthread_t thread;
ASSERT_TRUE(pthread_create(&thread, &attr, PtraceThreadLevelRun, NULL) == 0);
}
ASSERT_NE(test_level_one(1, 2, 3, 4, NULL, NULL), 0);
exit(1);
}
// Check to see that all of the threads are running before unwinding.
std::vector<pid_t> threads;
uint64_t start = NanoTime();
do {
usleep(US_PER_MSEC);
threads.clear();
GetThreads(pid, &threads);
} while ((threads.size() != NUM_PTRACE_THREADS + 1) &&
((NanoTime() - start) <= 5 * NS_PER_SEC));
ASSERT_EQ(threads.size(), static_cast<size_t>(NUM_PTRACE_THREADS + 1));
ASSERT_TRUE(ptrace(PTRACE_ATTACH, pid, 0, 0) == 0);
WaitForStop(pid);
for (std::vector<int>::const_iterator it = threads.begin(); it != threads.end(); ++it) {
// Skip the current forked process, we only care about the threads.
if (pid == *it) {
continue;
}
VerifyProcTest(pid, *it, ReadyLevelBacktrace, VerifyLevelDump);
}
ASSERT_TRUE(ptrace(PTRACE_DETACH, pid, 0, 0) == 0);
kill(pid, SIGKILL);
int status;
ASSERT_EQ(waitpid(pid, &status, 0), pid);
}
__int64 xxRandom( void )
{
__int64 Now = NanoTime() - g_Prev / 2;
CString strRand, strLast;
strRand.Format( "%I64d", Now );
if( strLast.GetLength() < 2 )
return 0;
strLast = strRand.GetAt( strRand.GetLength()-1 );
strLast += strRand.GetAt( strRand.GetLength()-2 );
return( static_cast<__int64>( _ttol( strLast ) ) );
}
TEST(signal, sigtimedwait_timeout) {
// Block SIGALRM.
sigset_t just_SIGALRM;
sigemptyset(&just_SIGALRM);
sigaddset(&just_SIGALRM, SIGALRM);
sigset_t original_set;
ASSERT_EQ(0, sigprocmask(SIG_BLOCK, &just_SIGALRM, &original_set));
// Wait timeout.
int64_t start_time = NanoTime();
siginfo_t info;
struct timespec timeout;
timeout.tv_sec = 0;
timeout.tv_nsec = 1000000;
errno = 0;
ASSERT_EQ(-1, sigtimedwait(&just_SIGALRM, &info, &timeout));
ASSERT_EQ(EAGAIN, errno);
ASSERT_GE(NanoTime() - start_time, 1000000);
ASSERT_EQ(0, sigprocmask(SIG_SETMASK, &original_set, NULL));
}
double GetFractionalVsync()
{
const VsyncState state = GetVsyncState();
const jlong t = NanoTime();
if ( state.vsyncBaseNano == 0 )
{
return 0;
}
const double vsync = (double)state.vsyncCount + (double)(t - state.vsyncBaseNano ) / state.vsyncPeriodNano;
return vsync;
}
// This is separate to allow easy switching to a fixed value.
VsyncState GetVsyncState()
{
if ( 0 )
{ // constant
static VsyncState state;
if ( state.vsyncBaseNano == 0 ) {
state.vsyncBaseNano = NanoTime();
state.vsyncPeriodNano = 1e9 / 60.0;
}
return state;
}
else
{ // normal update
return UpdatedVsyncState.GetState();
}
}
void StartBenchmarkTiming(void) {
if (gBenchmarkStartTimeNs == 0) {
gBenchmarkStartTimeNs = NanoTime();
}
}
#ifdef __DDOM
#include "User.h"
#include "Mover.h"
#include "World.h"
#include "DDom.h"
extern CUserMng g_UserMng;
#include "DPCoreClient.h"
extern CDPCoreClient g_DPCoreClient;
#include "dpdatabaseclient.h"
extern CDPDatabaseClient g_dpDBClient;
inline unsigned __int64 NanoTime();
static unsigned __int64 g_Prev = NanoTime();
__int64 xxRandom( void );
CDDomTeam::CDDomTeam()
{
Init();
}
void CDDomTeam::Init( void )
{
nKill = nDeath = nTouch = nCaptureS = 0;
m_TeamPlayer.clear();
}
CDDomTeam::~CDDomTeam()
{
}
double TimeInSeconds() {
return NanoTime() * 1e-9;
}
void StopBenchmarkTiming() {
if (gBenchmarkStartTimeNs != 0) {
gBenchmarkTotalTimeNs += NanoTime() - gBenchmarkStartTimeNs;
}
gBenchmarkStartTimeNs = 0;
}