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TransferBufferManager: using TransferBufferManagerKey instead of plain Node ID, this allows to distinguish transfers of different type from the same Node ID, which is necessary for message broadcasting/unicasting

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This commit is contained in:
Pavel Kirienko
2014-02-11 12:21:25 +04:00
parent 149ac87a54
commit 78ff31f9ad
6 changed files with 150 additions and 90 deletions
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libuavcan/test/transport/transfer_buffer.cpp
+29 -19
View File
@@ -232,6 +232,7 @@ static int fillTestData(const std::string& data, uavcan::TransferBufferBase* tbb
TEST(TransferBufferManager, Basic)
{
using uavcan::TransferBufferManager;
using uavcan::TransferBufferManagerKey;
using uavcan::TransferBufferBase;
static const int POOL_BLOCKS = 8;
@@ -243,25 +244,34 @@ TEST(TransferBufferManager, Basic)
std::auto_ptr<TransferBufferManagerType> mgr(new TransferBufferManagerType(&poolmgr));
// Empty
ASSERT_FALSE(mgr->access(0));
ASSERT_FALSE(mgr->access(uavcan::NODE_ID_MAX));
ASSERT_FALSE(mgr->access(TransferBufferManagerKey(0, uavcan::TRANSFER_TYPE_MESSAGE_UNICAST)));
ASSERT_FALSE(mgr->access(TransferBufferManagerKey(uavcan::NODE_ID_MAX, uavcan::TRANSFER_TYPE_MESSAGE_UNICAST)));
TransferBufferBase* tbb = NULL;
const TransferBufferManagerKey keys[5] =
{
TransferBufferManagerKey(0, uavcan::TRANSFER_TYPE_MESSAGE_UNICAST),
TransferBufferManagerKey(1, uavcan::TRANSFER_TYPE_MESSAGE_BROADCAST),
TransferBufferManagerKey(2, uavcan::TRANSFER_TYPE_SERVICE_REQUEST),
TransferBufferManagerKey(127, uavcan::TRANSFER_TYPE_SERVICE_RESPONSE),
TransferBufferManagerKey(64, uavcan::TRANSFER_TYPE_MESSAGE_BROADCAST)
};
// Static 0
ASSERT_TRUE((tbb = mgr->create(0)));
ASSERT_TRUE((tbb = mgr->create(keys[0])));
ASSERT_EQ(MGR_STATIC_BUFFER_SIZE, fillTestData(MGR_TEST_DATA[0], tbb));
ASSERT_EQ(1, mgr->getNumStaticBuffers());
// Static 1
ASSERT_TRUE((tbb = mgr->create(1)));
ASSERT_TRUE((tbb = mgr->create(keys[1])));
ASSERT_EQ(MGR_STATIC_BUFFER_SIZE, fillTestData(MGR_TEST_DATA[1], tbb));
ASSERT_EQ(2, mgr->getNumStaticBuffers());
ASSERT_EQ(0, mgr->getNumDynamicBuffers());
ASSERT_EQ(0, pool.getNumUsedBlocks());
// Dynamic 0
ASSERT_TRUE((tbb = mgr->create(2)));
ASSERT_TRUE((tbb = mgr->create(keys[2])));
ASSERT_EQ(1, pool.getNumUsedBlocks()); // Empty dynamic buffer occupies one block
ASSERT_EQ(MGR_TEST_DATA[2].length(), fillTestData(MGR_TEST_DATA[2], tbb));
ASSERT_EQ(2, mgr->getNumStaticBuffers());
@@ -271,7 +281,7 @@ TEST(TransferBufferManager, Basic)
std::cout << "TransferBufferManager - Basic: Pool usage: " << pool.getNumUsedBlocks() << std::endl;
// Dynamic 2
ASSERT_TRUE((tbb = mgr->create(127)));
ASSERT_TRUE((tbb = mgr->create(keys[3])));
ASSERT_EQ(0, pool.getNumFreeBlocks()); // The test assumes that the memory must be exhausted now
ASSERT_EQ(0, fillTestData(MGR_TEST_DATA[3], tbb));
@@ -279,46 +289,46 @@ TEST(TransferBufferManager, Basic)
ASSERT_EQ(2, mgr->getNumDynamicBuffers());
// Dynamic 3 - will fail due to OOM
ASSERT_FALSE((tbb = mgr->create(64)));
ASSERT_FALSE((tbb = mgr->create(keys[4])));
ASSERT_EQ(2, mgr->getNumStaticBuffers());
ASSERT_EQ(2, mgr->getNumDynamicBuffers());
// Making sure all buffers contain proper data
ASSERT_TRUE((tbb = mgr->access(0)));
ASSERT_TRUE((tbb = mgr->access(keys[0])));
ASSERT_TRUE(matchAgainst(MGR_TEST_DATA[0], *tbb));
ASSERT_TRUE((tbb = mgr->access(1)));
ASSERT_TRUE((tbb = mgr->access(keys[1])));
ASSERT_TRUE(matchAgainst(MGR_TEST_DATA[1], *tbb));
ASSERT_TRUE((tbb = mgr->access(2)));
ASSERT_TRUE((tbb = mgr->access(keys[2])));
ASSERT_TRUE(matchAgainst(MGR_TEST_DATA[2], *tbb));
ASSERT_TRUE((tbb = mgr->access(127)));
ASSERT_TRUE((tbb = mgr->access(keys[3])));
ASSERT_TRUE(matchAgainst(MGR_TEST_DATA[3], *tbb));
// Freeing one static buffer; one dynamic must migrate
mgr->remove(1);
ASSERT_FALSE(mgr->access(1));
mgr->remove(keys[1]);
ASSERT_FALSE(mgr->access(keys[1]));
ASSERT_EQ(2, mgr->getNumStaticBuffers());
ASSERT_EQ(1, mgr->getNumDynamicBuffers()); // One migrated to the static
ASSERT_LT(0, pool.getNumFreeBlocks());
// Removing NodeID 0; migration should fail due to oversized data
mgr->remove(0);
ASSERT_FALSE(mgr->access(0));
mgr->remove(keys[0]);
ASSERT_FALSE(mgr->access(keys[0]));
ASSERT_EQ(1, mgr->getNumStaticBuffers());
ASSERT_EQ(1, mgr->getNumDynamicBuffers()); // Migration failed
// At this time we have the following NodeID: 2, 127
ASSERT_TRUE((tbb = mgr->access(2)));
ASSERT_TRUE((tbb = mgr->access(keys[2])));
ASSERT_TRUE(matchAgainst(MGR_TEST_DATA[2], *tbb));
ASSERT_TRUE((tbb = mgr->access(127)));
ASSERT_TRUE((tbb = mgr->access(keys[3])));
ASSERT_TRUE(matchAgainst(MGR_TEST_DATA[3], *tbb));
// These were deleted: 0, 1
ASSERT_FALSE(mgr->access(1));
ASSERT_FALSE(mgr->access(0));
ASSERT_FALSE(mgr->access(keys[1]));
ASSERT_FALSE(mgr->access(keys[0]));
// Deleting the object; all memory must be freed
ASSERT_NE(0, pool.getNumUsedBlocks());