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// Copyright Yahoo. Licensed under the terms of the Apache 2.0 license. See LICENSE in the project root.
#include <vespa/vespalib/testkit/test_kit.h>
#include <vespa/fnet/frt/supervisor.h>
#include <vespa/fnet/frt/target.h>
#include <vespa/fnet/frt/rpcrequest.h>
#include <vector>
constexpr size_t ALLOC_LIMIT=1024;
struct MyBlob : FRT_ISharedBlob
{
int refcnt;
MyBlob() : refcnt(1) {}
uint32_t getLen() override { return (strlen("blob_test") + 1); }
const char *getData() override { return "blob_test"; }
void addRef() override { ++refcnt; }
void subRef() override { --refcnt; }
};
struct Data
{
enum {
SMALL = (ALLOC_LIMIT / 2),
LARGE = (ALLOC_LIMIT * 2)
};
char *buf;
uint32_t len;
Data(const char *pt, uint32_t l) : buf(new char[l]), len(l) {
if (len > 0) {
memcpy(buf, pt, len);
}
}
Data(uint32_t l, char c) : buf(new char[l]), len(l) {
if (len > 0) {
memset(buf, c, len);
}
}
Data(const Data &rhs) : buf(new char[rhs.len]), len(rhs.len) {
if (len > 0) {
memcpy(buf, rhs.buf, len);
}
}
Data &operator=(const Data &rhs) {
if (this != &rhs) {
delete [] buf;
buf = new char[rhs.len];
len = rhs.len;
if (len > 0) {
memcpy(buf, rhs.buf, len);
}
}
return *this;
}
bool check(uint32_t l, char c) {
if (l != len) {
fprintf(stderr, "blob length was %u, expected %u\n", len, l);
return false;
}
for (uint32_t i = 0; i < l; ++i) {
if (buf[i] != c) {
fprintf(stderr, "byte at offset %u was %c, expected %c\n", i, buf[i], c);
return false;
}
}
return true;
}
~Data() {
delete [] buf;
}
};
struct DataSet
{
std::vector<Data> blobs;
void sample(FRT_Values &v) {
blobs.push_back(Data(v.GetNumValues(), 'V'));
for (uint32_t i = 0; i < v.GetNumValues(); ++i) {
if (v.GetType(i) == FRT_VALUE_DATA) {
blobs.push_back(Data(1, 'x'));
blobs.push_back(Data(v[i]._data._buf, v[i]._data._len));
} else if (v.GetType(i) == FRT_VALUE_DATA_ARRAY) {
blobs.push_back(Data(v[i]._data_array._len, 'X'));
for (uint32_t j = 0; j < v[i]._data_array._len; ++j) {
blobs.push_back(Data(v[i]._data_array._pt[j]._buf,
v[i]._data_array._pt[j]._len));
}
}
}
}
};
struct ServerSampler : public FRT_Invokable
{
DataSet &dataSet;
FRT_RPCRequest *clientReq;
FRT_RPCRequest *serverReq;
ServerSampler(DataSet &ds, FRT_RPCRequest *cr) : dataSet(ds), clientReq(cr), serverReq(0) {}
void RPC_test(FRT_RPCRequest *req)
{
if (clientReq != 0) {
dataSet.sample(*clientReq->GetParams()); // client params after drop
}
// store away parameters
FNET_DataBuffer buf;
buf.EnsureFree(req->GetParams()->GetLength());
req->GetParams()->EncodeCopy(&buf);
dataSet.sample(*req->GetParams()); // server params before drop
req->DiscardBlobs();
dataSet.sample(*req->GetParams()); // server params after drop
// restore parameters into return values
req->GetReturn()->DecodeCopy(&buf, buf.GetDataLen());
dataSet.sample(*req->GetReturn()); // server return before drop
// keep request to sample return after drop
req->internal_addref();
serverReq = req;
}
};
TEST("testExplicitShared") {
fnet::frt::StandaloneFRT frt;
FRT_Supervisor & orb = frt.supervisor();
MyBlob blob;
FRT_RPCRequest *req = orb.AllocRPCRequest();
EXPECT_TRUE(blob.refcnt == 1);
req->GetParams()->AddSharedData(&blob);
req->GetParams()->AddInt32(42);
req->GetParams()->AddSharedData(&blob);
req->GetParams()->AddInt32(84);
req->GetParams()->AddSharedData(&blob);
EXPECT_EQUAL(4, blob.refcnt);
EXPECT_TRUE(strcmp(req->GetParamSpec(), "xixix") == 0);
EXPECT_TRUE(req->GetParams()->GetValue(0)._data._len == blob.getLen());
EXPECT_TRUE(req->GetParams()->GetValue(0)._data._buf == blob.getData());
EXPECT_TRUE(req->GetParams()->GetValue(1)._intval32 == 42);
EXPECT_TRUE(req->GetParams()->GetValue(2)._data._len == blob.getLen());
EXPECT_TRUE(req->GetParams()->GetValue(2)._data._buf == blob.getData());
EXPECT_TRUE(req->GetParams()->GetValue(3)._intval32 == 84);
EXPECT_TRUE(req->GetParams()->GetValue(4)._data._len == blob.getLen());
EXPECT_TRUE(req->GetParams()->GetValue(4)._data._buf == blob.getData());
req->CreateRequestPacket(true)->Free(); // fake request send.
EXPECT_EQUAL(1, blob.refcnt);
EXPECT_TRUE(strcmp(req->GetParamSpec(), "xixix") == 0);
EXPECT_TRUE(req->GetParams()->GetValue(0)._data._len == 0);
EXPECT_TRUE(req->GetParams()->GetValue(0)._data._buf == nullptr);
EXPECT_TRUE(req->GetParams()->GetValue(1)._intval32 == 42);
EXPECT_TRUE(req->GetParams()->GetValue(2)._data._len == 0);
EXPECT_TRUE(req->GetParams()->GetValue(2)._data._buf == nullptr);
EXPECT_TRUE(req->GetParams()->GetValue(3)._intval32 == 84);
EXPECT_TRUE(req->GetParams()->GetValue(4)._data._len == 0);
EXPECT_TRUE(req->GetParams()->GetValue(4)._data._buf == nullptr);
EXPECT_EQUAL(1, blob.refcnt);
req = orb.AllocRPCRequest(req);
EXPECT_EQUAL(1, blob.refcnt);
req->GetParams()->AddSharedData(&blob);
req->GetParams()->AddInt32(42);
req->GetParams()->AddSharedData(&blob);
req->GetParams()->AddInt32(84);
req->GetParams()->AddSharedData(&blob);
EXPECT_EQUAL(4, blob.refcnt);
req->internal_subref();
EXPECT_EQUAL(1, blob.refcnt);
}
TEST("testImplicitShared") {
DataSet dataSet;
fnet::frt::StandaloneFRT frt;
FRT_Supervisor & orb = frt.supervisor();
FRT_RPCRequest *req = orb.AllocRPCRequest();
ServerSampler serverSampler(dataSet, req);
{
FRT_ReflectionBuilder rb(&orb);
rb.DefineMethod("test", "*", "*",
FRT_METHOD(ServerSampler::RPC_test), &serverSampler);
}
orb.Listen(0);
int port = orb.GetListenPort();
ASSERT_TRUE(port != 0);
char tmp[64];
snprintf(tmp, sizeof(tmp), "tcp/localhost:%d", port);
FRT_Target *target = orb.GetTarget(tmp);
req->SetMethodName("test");
{
Data data(Data::SMALL, 'a');
req->GetParams()->AddData(data.buf, data.len);
}
{
Data data(Data::LARGE, 'b');
req->GetParams()->AddData(data.buf, data.len);
}
{
char *data = req->GetParams()->AddData(Data::LARGE);
memset(data, 'c', Data::LARGE);
}
{
Data data1(Data::SMALL, 'd');
Data data2(Data::LARGE, 'e');
FRT_DataValue *arr = req->GetParams()->AddDataArray(2);
req->GetParams()->SetData(&arr[0], data1.buf, data1.len);
req->GetParams()->SetData(&arr[1], data2.buf, data2.len);
}
dataSet.sample(*req->GetParams()); // client params before drop
target->InvokeSync(req, 30.0);
if (serverSampler.serverReq != 0) {
dataSet.sample(*serverSampler.serverReq->GetReturn()); // server return after drop
}
dataSet.sample(*req->GetReturn()); // client return before drop
req->DiscardBlobs();
dataSet.sample(*req->GetReturn()); // client return after drop
// verify blob samples
EXPECT_EQUAL(dataSet.blobs.size(), 80u);
for (int i = 0; i < 80; i += 20) {
// before discard (client params, server params, server return, client return)
EXPECT_TRUE(dataSet.blobs[i + 0].check(4, 'V'));
EXPECT_TRUE(dataSet.blobs[i + 1].check(1, 'x'));
EXPECT_TRUE(dataSet.blobs[i + 2].check(Data::SMALL, 'a'));
EXPECT_TRUE(dataSet.blobs[i + 3].check(1, 'x'));
EXPECT_TRUE(dataSet.blobs[i + 4].check(Data::LARGE, 'b'));
EXPECT_TRUE(dataSet.blobs[i + 5].check(1, 'x'));
EXPECT_TRUE(dataSet.blobs[i + 6].check(Data::LARGE, 'c'));
EXPECT_TRUE(dataSet.blobs[i + 7].check(2, 'X'));
EXPECT_TRUE(dataSet.blobs[i + 8].check(Data::SMALL, 'd'));
EXPECT_TRUE(dataSet.blobs[i + 9].check(Data::LARGE, 'e'));
// after discard (client params, server params, server return, client return)
EXPECT_TRUE(dataSet.blobs[i + 10].check(4, 'V'));
EXPECT_TRUE(dataSet.blobs[i + 11].check(1, 'x'));
EXPECT_TRUE(dataSet.blobs[i + 12].check(Data::SMALL, 'a'));
EXPECT_TRUE(dataSet.blobs[i + 13].check(1, 'x'));
EXPECT_TRUE(dataSet.blobs[i + 14].check(0, 0));
EXPECT_TRUE(dataSet.blobs[i + 15].check(1, 'x'));
EXPECT_TRUE(dataSet.blobs[i + 16].check(0, 0));
EXPECT_TRUE(dataSet.blobs[i + 17].check(2, 'X'));
EXPECT_TRUE(dataSet.blobs[i + 18].check(Data::SMALL, 'd'));
EXPECT_TRUE(dataSet.blobs[i + 19].check(0, 0));
}
if (serverSampler.serverReq != 0) {
serverSampler.serverReq->internal_subref();
}
req->internal_subref();
target->internal_subref();
}
TEST_MAIN() { TEST_RUN_ALL(); }
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