#include <errno.h>
#include <netinet/in.h>
#include <signal.h>
#include <stdarg.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/socket.h>
#include <OS.h>
enum run_mode {
RUN_IGNORE_SIGNAL,
RUN_HANDLE_SIGNAL,
RUN_HANDLE_SIGNAL_RESTART
};
class Test {
public:
Test(const char* name)
: fName(name)
{
}
virtual ~Test()
{
}
bool Run(run_mode mode)
{
fRunMode = mode;
fSignalHandlerCalled = false;
status_t error = Prepare();
if (error != B_OK)
return Error("Failed to prepare test: %s", strerror(error));
thread_id thread = spawn_thread(_ThreadEntry, fName, B_NORMAL_PRIORITY,
this);
if (thread < 0)
return Error("Failed to spawn thread: %s\n", strerror(thread));
resume_thread(thread);
snooze(100000);
kill(thread, SIGINT);
PrepareFinish();
status_t result;
wait_for_thread(thread, &result);
if (result != (Interrupted() ? B_INTERRUPTED : B_OK)) {
return Error("Unexpected syscall return value: %s\n",
strerror(result));
}
if ((RunMode() == RUN_IGNORE_SIGNAL) == fSignalHandlerCalled) {
if (RunMode() == RUN_IGNORE_SIGNAL)
return Error("Handler was called but shouldn't have been!");
else
return Error("Handler was not called!");
}
return Finish(Interrupted());
}
void Run()
{
printf("%s\n", fName);
struct {
const char* name;
run_mode mode;
} tests[] = {
{ "ignore signal", RUN_IGNORE_SIGNAL },
{ "handle signal no restart", RUN_HANDLE_SIGNAL },
{ "handle signal restart", RUN_HANDLE_SIGNAL_RESTART },
{}
};
for (int i = 0; tests[i].name != NULL; i++) {
printf(" %-30s: ", tests[i].name);
fflush(stdout);
ClearError();
if (Run(tests[i].mode))
printf("ok\n");
else
printf("failed (%s)\n", fError);
Cleanup();
}
}
run_mode RunMode() const { return fRunMode; }
bool Interrupted() const { return RunMode() == RUN_HANDLE_SIGNAL; }
bigtime_t TimeWaited() const { return fTimeWaited; }
protected:
virtual status_t Prepare()
{
return B_OK;
}
virtual status_t DoSyscall() = 0;
virtual void HandleSignal()
{
}
virtual void PrepareFinish()
{
}
virtual bool Finish(bool interrupted)
{
return true;
}
virtual void Cleanup()
{
}
bool Error(const char* format,...)
{
va_list args;
va_start(args, format);
vsnprintf(fError, sizeof(fError), format, args);
va_end(args);
return false;
}
bool Check(bool condition, const char* format,...)
{
if (condition)
return true;
va_list args;
va_start(args, format);
vsnprintf(fError, sizeof(fError), format, args);
va_end(args);
return false;
}
void ClearError()
{
fError[0] = '\0';
}
private:
static status_t _ThreadEntry(void* data)
{
return ((Test*)data)->_TestThread();
}
static void _SignalHandler(int signal, char* userData)
{
Test* self = (Test*)userData;
self->fSignalHandlerCalled = true;
self->HandleSignal();
}
status_t _TestThread()
{
struct sigaction action;
if (RunMode() == RUN_IGNORE_SIGNAL)
action.sa_handler = SIG_IGN;
else
action.sa_handler = (void (*)(int))_SignalHandler;
action.sa_flags = RunMode() == RUN_HANDLE_SIGNAL_RESTART
? SA_RESTART : 0;
sigemptyset(&action.sa_mask);
action.sa_userdata = this;
sigaction(SIGINT, &action, NULL);
bigtime_t startTime = system_time();
status_t status = DoSyscall();
fTimeWaited = system_time() - startTime;
return status;
}
private:
const char* fName;
run_mode fRunMode;
bool fSignalHandlerCalled;
bigtime_t fTimeWaited;
char fError[1024];
};
class SnoozeTest : public Test {
public:
SnoozeTest()
: Test("snooze")
{
}
virtual status_t DoSyscall()
{
return snooze(1000000);
}
virtual bool Finish(bool interrupted)
{
if (interrupted)
return Check(TimeWaited() < 200000, "waited too long");
return Check(TimeWaited() > 900000 && TimeWaited() < 1100000,
"waited %lld us instead of 1000000 us", TimeWaited());
}
};
class ReadTest : public Test {
public:
ReadTest()
: Test("read")
{
}
virtual status_t Prepare()
{
fBytesRead = -1;
fFDs[0] = -1;
fFDs[1] = -1;
if (pipe(fFDs) != 0)
return errno;
return B_OK;
}
virtual status_t DoSyscall()
{
char buffer[256];
fBytesRead = read(fFDs[0], buffer, sizeof(buffer));
return fBytesRead < 0 ? errno : B_OK;
}
virtual void PrepareFinish()
{
write(fFDs[1], "Ingo", 4);
}
virtual bool Finish(bool interrupted)
{
if (interrupted)
return Check(fBytesRead < 0, "unexpected read");
return Check(fBytesRead == 4, "should have read 4 bytes, read only %ld "
"bytes", fBytesRead);
}
virtual void Cleanup()
{
close(fFDs[0]);
close(fFDs[1]);
}
private:
bigtime_t fTimeWaited;
ssize_t fBytesRead;
int fFDs[2];
};
class WriteTest : public Test {
public:
WriteTest()
: Test("write")
{
}
virtual status_t Prepare()
{
fBytesWritten = -1;
fFDs[0] = -1;
fFDs[1] = -1;
if (pipe(fFDs) != 0)
return errno;
fcntl(fFDs[1], F_SETFL, O_NONBLOCK);
while (write(fFDs[1], "a", 1) == 1);
return B_OK;
}
virtual status_t DoSyscall()
{
fcntl(fFDs[1], F_SETFL, 0);
fBytesWritten = write(fFDs[1], "Ingo", 4);
return fBytesWritten < 0 ? errno : B_OK;
}
virtual void PrepareFinish()
{
char buffer[256];
read(fFDs[0], buffer, sizeof(buffer));
}
virtual bool Finish(bool interrupted)
{
if (interrupted)
return Check(fBytesWritten < 0, "unexpected write");
return Check(fBytesWritten == 4, "should have written 4 bytes, wrote only %ld "
"bytes", fBytesWritten);
}
virtual void Cleanup()
{
close(fFDs[0]);
close(fFDs[1]);
}
private:
ssize_t fBytesWritten;
int fFDs[2];
};
class AcquireSwitchSemTest : public Test {
public:
AcquireSwitchSemTest(bool useSwitch)
: Test(useSwitch ? "switch_sem" : "acquire_sem"),
fSwitch(useSwitch)
{
}
virtual status_t Prepare()
{
fSemaphore = create_sem(0, "test sem");
return (fSemaphore >= 0 ? B_OK : fSemaphore);
}
virtual status_t DoSyscall()
{
if (fSwitch)
return switch_sem(-1, fSemaphore);
return acquire_sem(fSemaphore);
}
virtual void PrepareFinish()
{
release_sem(fSemaphore);
}
virtual void Cleanup()
{
delete_sem(fSemaphore);
}
protected:
sem_id fSemaphore;
bool fSwitch;
};
class AcquireSwitchSemEtcTest : public Test {
public:
AcquireSwitchSemEtcTest(bool useSwitch)
: Test(useSwitch ? "switch_sem_etc" : "acquire_sem_etc"),
fSwitch(useSwitch)
{
}
virtual status_t Prepare()
{
fSemaphore = create_sem(0, "test sem");
return fSemaphore >= 0 ? B_OK : fSemaphore;
}
virtual status_t DoSyscall()
{
status_t status;
if (fSwitch) {
status = switch_sem_etc(-1, fSemaphore, 1, B_RELATIVE_TIMEOUT,
1000000);
} else {
status = acquire_sem_etc(fSemaphore, 1, B_RELATIVE_TIMEOUT,
1000000);
}
if (!Interrupted() && status == B_TIMED_OUT)
return B_OK;
return status;
}
virtual bool Finish(bool interrupted)
{
if (interrupted)
return Check(TimeWaited() < 200000, "waited too long");
return Check(TimeWaited() > 900000 && TimeWaited() < 1100000,
"waited %lld us instead of 1000000 us", TimeWaited());
}
virtual void Cleanup()
{
delete_sem(fSemaphore);
}
protected:
sem_id fSemaphore;
bool fSwitch;
};
class AcceptTest : public Test {
public:
AcceptTest()
: Test("accept")
{
}
virtual status_t Prepare()
{
fAcceptedSocket = -1;
fServerSocket = socket(AF_INET, SOCK_STREAM, 0);
if (fServerSocket < 0) {
fprintf(stderr, "Could not open server socket: %s\n",
strerror(errno));
return errno;
}
int reuse = 1;
if (setsockopt(fServerSocket, SOL_SOCKET, SO_REUSEADDR, &reuse,
sizeof(int)) == -1) {
fprintf(stderr, "Could not make server socket reusable: %s\n",
strerror(errno));
return errno;
}
memset(&fServerAddress, 0, sizeof(sockaddr_in));
fServerAddress.sin_family = AF_INET;
fServerAddress.sin_addr.s_addr = INADDR_LOOPBACK;
if (bind(fServerSocket, (struct sockaddr *)&fServerAddress,
sizeof(struct sockaddr)) == -1) {
fprintf(stderr, "Could not bind server socket: %s\n",
strerror(errno));
return errno;
}
socklen_t length = sizeof(sockaddr_in);
getsockname(fServerSocket, (sockaddr*)&fServerAddress,
&length);
if (listen(fServerSocket, 10) == -1) {
fprintf(stderr, "Could not listen on server socket: %s\n",
strerror(errno));
return errno;
}
return B_OK;
}
virtual status_t DoSyscall()
{
sockaddr_in clientAddress;
socklen_t length = sizeof(struct sockaddr_in);
fAcceptedSocket = accept(fServerSocket,
(struct sockaddr *)&clientAddress, &length);
if (fAcceptedSocket == -1)
return errno;
return B_OK;
}
virtual void PrepareFinish()
{
if (Interrupted())
return;
int clientSocket = socket(AF_INET, SOCK_STREAM, 0);
if (clientSocket == -1) {
fprintf(stderr, "Could not open client socket: %s\n",
strerror(errno));
return;
}
if (connect(clientSocket, (struct sockaddr *)&fServerAddress,
sizeof(struct sockaddr)) == -1) {
fprintf(stderr, "Could not connect to server socket: %s\n",
strerror(errno));
}
close(clientSocket);
}
virtual bool Finish(bool interrupted)
{
if (interrupted)
return Check(fAcceptedSocket < 0, "got socket");
return Check(fAcceptedSocket >= 0, "got no socket");
}
virtual void Cleanup()
{
close(fAcceptedSocket);
close(fServerSocket);
}
protected:
int fServerSocket;
sockaddr_in fServerAddress;
int fAcceptedSocket;
};
class ReceiveTest : public Test {
public:
ReceiveTest()
: Test("recv")
{
}
virtual status_t Prepare()
{
fBytesRead = -1;
fAcceptedSocket = -1;
fClientSocket = -1;
fServerSocket = socket(AF_INET, SOCK_STREAM, 0);
if (fServerSocket < 0) {
fprintf(stderr, "Could not open server socket: %s\n",
strerror(errno));
return errno;
}
int reuse = 1;
if (setsockopt(fServerSocket, SOL_SOCKET, SO_REUSEADDR, &reuse,
sizeof(int)) == -1) {
fprintf(stderr, "Could not make server socket reusable: %s\n",
strerror(errno));
return errno;
}
memset(&fServerAddress, 0, sizeof(sockaddr_in));
fServerAddress.sin_family = AF_INET;
fServerAddress.sin_addr.s_addr = INADDR_LOOPBACK;
if (bind(fServerSocket, (struct sockaddr *)&fServerAddress,
sizeof(struct sockaddr)) == -1) {
fprintf(stderr, "Could not bind server socket: %s\n",
strerror(errno));
return errno;
}
socklen_t length = sizeof(sockaddr_in);
getsockname(fServerSocket, (sockaddr*)&fServerAddress,
&length);
if (listen(fServerSocket, 10) == -1) {
fprintf(stderr, "Could not listen on server socket: %s\n",
strerror(errno));
return errno;
}
fClientSocket = socket(AF_INET, SOCK_STREAM, 0);
if (fClientSocket == -1) {
fprintf(stderr, "Could not open client socket: %s\n",
strerror(errno));
return errno;
}
fcntl(fClientSocket, F_SETFL, O_NONBLOCK);
if (connect(fClientSocket, (struct sockaddr *)&fServerAddress,
sizeof(struct sockaddr)) == -1) {
if (errno != EINPROGRESS) {
fprintf(stderr, "Could not connect to server socket: %s\n",
strerror(errno));
return errno;
}
}
sockaddr_in clientAddress;
length = sizeof(struct sockaddr_in);
fAcceptedSocket = accept(fServerSocket,
(struct sockaddr *)&clientAddress, &length);
if (fAcceptedSocket == -1)
return errno;
fcntl(fClientSocket, F_SETFL, 0);
snooze(100000);
return B_OK;
}
virtual status_t DoSyscall()
{
char buffer[256];
fBytesRead = recv(fAcceptedSocket, buffer, sizeof(buffer), 0);
return fBytesRead < 0 ? errno : B_OK;
}
virtual void PrepareFinish()
{
write(fClientSocket, "Axel", 4);
}
virtual bool Finish(bool interrupted)
{
if (interrupted)
return Check(fBytesRead < 0, "unexpected read");
return Check(fBytesRead == 4, "should have read 4 bytes, read only %ld "
"bytes", fBytesRead);
}
virtual void Cleanup()
{
close(fAcceptedSocket);
close(fServerSocket);
close(fClientSocket);
}
protected:
int fServerSocket;
sockaddr_in fServerAddress;
int fAcceptedSocket;
int fClientSocket;
ssize_t fBytesRead;
};
int
main()
{
Test* tests[] = {
new SnoozeTest,
new ReadTest,
new WriteTest,
new AcquireSwitchSemTest(false),
new AcquireSwitchSemTest(true),
new AcquireSwitchSemEtcTest(false),
new AcquireSwitchSemEtcTest(true),
new AcceptTest,
new ReceiveTest,
NULL
};
for (int i = 0; tests[i] != NULL; i++)
tests[i]->Run();
return 0;
}
