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// Copyright 2015 The Cobalt Authors. All Rights Reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
#include <utility>
#include "starboard/common/log.h"
#include "starboard/common/socket.h"
#include "starboard/nplb/socket_helpers.h"
#include "starboard/nplb/thread_helpers.h"
#include "starboard/socket_waiter.h"
#include "starboard/thread.h"
#include "starboard/time.h"
#include "testing/gtest/include/gtest/gtest.h"
namespace starboard {
namespace nplb {
namespace {
class SbSocketWaiterWaitTest
: public ::testing::TestWithParam<SbSocketAddressType> {
public:
SbSocketAddressType GetAddressType() { return GetParam(); }
};
class PairSbSocketWaiterWaitTest
: public ::testing::TestWithParam<
std::pair<SbSocketAddressType, SbSocketAddressType> > {
public:
SbSocketAddressType GetServerAddressType() { return GetParam().first; }
SbSocketAddressType GetClientAddressType() { return GetParam().second; }
};
struct CallbackValues {
int count;
SbSocketWaiter waiter;
SbSocket socket;
void* context;
int ready_interests;
};
void TestSocketWaiterCallback(SbSocketWaiter waiter,
SbSocket socket,
void* context,
int ready_interests) {
CallbackValues* values = reinterpret_cast<CallbackValues*>(context);
if (values) {
++values->count;
values->waiter = waiter;
values->socket = socket;
values->context = context;
values->ready_interests = ready_interests;
}
SbSocketWaiterWakeUp(waiter);
}
void FailSocketWaiterCallback(SbSocketWaiter waiter,
SbSocket socket,
void* context,
int ready_interests) {
ADD_FAILURE() << __FUNCTION__ << " was called.";
}
TEST_P(PairSbSocketWaiterWaitTest, SunnyDay) {
const int kBufSize = 1024;
SbSocketWaiter waiter = SbSocketWaiterCreate();
EXPECT_TRUE(SbSocketWaiterIsValid(waiter));
ConnectedTrio trio =
CreateAndConnect(GetServerAddressType(), GetClientAddressType(),
GetPortNumberForTests(), kSocketTimeout);
ASSERT_TRUE(SbSocketIsValid(trio.server_socket));
// The client socket should be ready to write right away, but not read until
// it gets some data.
CallbackValues values = {0};
EXPECT_TRUE(SbSocketWaiterAdd(
waiter, trio.client_socket, &values, &TestSocketWaiterCallback,
kSbSocketWaiterInterestRead | kSbSocketWaiterInterestWrite, false));
// This add should do nothing, since it is already registered. Testing here
// because we can see if it fires a write to the proper callback, then it
// properly ignored this second set of parameters.
EXPECT_FALSE(SbSocketWaiterAdd(waiter, trio.client_socket, &values,
&FailSocketWaiterCallback,
kSbSocketWaiterInterestRead, false));
WaitShouldNotBlock(waiter);
EXPECT_EQ(1, values.count); // Check that the callback was called once.
EXPECT_EQ(waiter, values.waiter);
EXPECT_EQ(trio.client_socket, values.socket);
EXPECT_EQ(&values, values.context);
EXPECT_EQ(kSbSocketWaiterInterestWrite, values.ready_interests);
// Try again to make sure writable sockets are still writable
values.count = 0;
EXPECT_TRUE(SbSocketWaiterAdd(
waiter, trio.client_socket, &values, &TestSocketWaiterCallback,
kSbSocketWaiterInterestRead | kSbSocketWaiterInterestWrite, false));
WaitShouldNotBlock(waiter);
EXPECT_EQ(1, values.count); // Check that the callback was called once.
EXPECT_EQ(waiter, values.waiter);
EXPECT_EQ(trio.client_socket, values.socket);
EXPECT_EQ(&values, values.context);
EXPECT_EQ(kSbSocketWaiterInterestWrite, values.ready_interests);
// The client socket should become ready to read after we write some data to
// it.
values.count = 0;
EXPECT_TRUE(SbSocketWaiterAdd(waiter, trio.client_socket, &values,
&TestSocketWaiterCallback,
kSbSocketWaiterInterestRead, false));
// Now we can send something to trigger readability.
char* send_buf = new char[kBufSize];
int bytes_sent = SbSocketSendTo(trio.server_socket, send_buf, kBufSize, NULL);
delete[] send_buf;
EXPECT_LT(0, bytes_sent);
WaitShouldNotBlock(waiter);
EXPECT_EQ(1, values.count);
EXPECT_EQ(waiter, values.waiter);
EXPECT_EQ(trio.client_socket, values.socket);
EXPECT_EQ(&values, values.context);
EXPECT_EQ(kSbSocketWaiterInterestRead, values.ready_interests);
EXPECT_TRUE(SbSocketDestroy(trio.server_socket));
EXPECT_TRUE(SbSocketDestroy(trio.client_socket));
EXPECT_TRUE(SbSocketDestroy(trio.listen_socket));
EXPECT_TRUE(SbSocketWaiterDestroy(waiter));
}
struct AlreadyReadyContext {
AlreadyReadyContext()
: waiter(kSbSocketWaiterInvalid),
a_write_result(false),
a_read_result(false),
b_result(false) {}
~AlreadyReadyContext() {
if (SbSocketIsValid(trio.listen_socket)) {
EXPECT_TRUE(SbSocketDestroy(trio.listen_socket));
}
if (SbSocketIsValid(trio.server_socket)) {
EXPECT_TRUE(SbSocketDestroy(trio.server_socket));
}
if (SbSocketIsValid(trio.client_socket)) {
EXPECT_TRUE(SbSocketDestroy(trio.client_socket));
}
EXPECT_TRUE(SbSocketWaiterDestroy(waiter));
}
SbSocketWaiter waiter;
ConnectedTrio trio;
Semaphore wrote_a_signal;
bool a_write_result;
bool a_read_result;
Semaphore write_b_signal;
bool b_result;
Semaphore wrote_b_signal;
};
const char kAData[] = "AAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAAA";
const char kBData[] = "bb";
void* AlreadyReadyEntryPoint(void* param) {
AlreadyReadyContext* context = reinterpret_cast<AlreadyReadyContext*>(param);
context->a_write_result =
WriteBySpinning(context->trio.server_socket, kAData,
SB_ARRAY_SIZE_INT(kAData), kSocketTimeout);
context->wrote_a_signal.Put();
context->write_b_signal.Take();
context->b_result =
WriteBySpinning(context->trio.server_socket, kBData,
SB_ARRAY_SIZE_INT(kBData), kSocketTimeout);
context->wrote_b_signal.Put();
return NULL;
}
void WakeUpSocketWaiterCallback(SbSocketWaiter waiter,
SbSocket socket,
void* param,
int ready_interests) {
SbSocketWaiterWakeUp(waiter);
}
void AlreadyReadySocketWaiterCallback(SbSocketWaiter waiter,
SbSocket socket,
void* param,
int ready_interests) {
AlreadyReadyContext* context = reinterpret_cast<AlreadyReadyContext*>(param);
// Read in the A data.
char buffer[SB_ARRAY_SIZE_INT(kAData)];
context->a_read_result =
ReadBySpinning(context->trio.client_socket, buffer,
SB_ARRAY_SIZE_INT(buffer), kSocketTimeout);
// Tell the thread to write the B data now.
context->write_b_signal.Put();
// Wait until it thinks it has finished.
context->wrote_b_signal.Take();
// Now add the second read callback, and hope that it gets called.
EXPECT_TRUE(SbSocketWaiterAdd(waiter, socket, context,
&WakeUpSocketWaiterCallback,
kSbSocketWaiterInterestRead, false));
}
// This test ensures that if the socket gets written to while it is not being
// waited on, and inside a callback, it will become ready immediately the next
// time it is waited on.
TEST_P(PairSbSocketWaiterWaitTest, SunnyDayAlreadyReady) {
AlreadyReadyContext context;
context.waiter = SbSocketWaiterCreate();
ASSERT_TRUE(SbSocketWaiterIsValid(context.waiter));
context.trio =
CreateAndConnect(GetServerAddressType(), GetClientAddressType(),
GetPortNumberForTests(), kSocketTimeout);
ASSERT_TRUE(SbSocketIsValid(context.trio.server_socket));
EXPECT_TRUE(SbSocketWaiterAdd(context.waiter, context.trio.client_socket,
&context, &AlreadyReadySocketWaiterCallback,
kSbSocketWaiterInterestRead, false));
SbThread thread =
SbThreadCreate(0, kSbThreadNoPriority, kSbThreadNoAffinity, true, NULL,
AlreadyReadyEntryPoint, &context);
EXPECT_TRUE(SbThreadIsValid(thread));
context.wrote_a_signal.Take();
WaitShouldNotBlock(context.waiter);
EXPECT_TRUE(SbThreadJoin(thread, NULL));
}
TEST_F(SbSocketWaiterWaitTest, RainyDayInvalidWaiter) {
WaitShouldNotBlock(kSbSocketWaiterInvalid);
}
#if SB_HAS(IPV6)
INSTANTIATE_TEST_CASE_P(SbSocketAddressTypes,
SbSocketWaiterWaitTest,
::testing::Values(kSbSocketAddressTypeIpv4,
kSbSocketAddressTypeIpv6),
GetSbSocketAddressTypeName);
INSTANTIATE_TEST_CASE_P(
SbSocketAddressTypes,
PairSbSocketWaiterWaitTest,
::testing::Values(
std::make_pair(kSbSocketAddressTypeIpv4, kSbSocketAddressTypeIpv4),
std::make_pair(kSbSocketAddressTypeIpv6, kSbSocketAddressTypeIpv6),
std::make_pair(kSbSocketAddressTypeIpv6, kSbSocketAddressTypeIpv4)),
GetSbSocketAddressTypePairName);
#else
INSTANTIATE_TEST_CASE_P(SbSocketAddressTypes,
SbSocketWaiterWaitTest,
::testing::Values(kSbSocketAddressTypeIpv4),
GetSbSocketAddressTypeName);
INSTANTIATE_TEST_CASE_P(
SbSocketAddressTypes,
PairSbSocketWaiterWaitTest,
::testing::Values(std::make_pair(kSbSocketAddressTypeIpv4,
kSbSocketAddressTypeIpv4)),
GetSbSocketAddressTypePairName);
#endif
} // namespace
} // namespace nplb
} // namespace starboard