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@ -16,15 +16,16 @@ |
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* |
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*/ |
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#include <grpc++/impl/codegen/grpc_library.h> |
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#include <grpc++/impl/codegen/proto_utils.h> |
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#include <grpc++/impl/grpc_library.h> |
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#include <grpc/impl/codegen/byte_buffer.h> |
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#include <grpc/slice.h> |
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#include <gtest/gtest.h> |
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namespace grpc { |
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namespace internal { |
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static GrpcLibraryInitializer g_gli_initializer; |
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// Provide access to GrpcBufferWriter internals.
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class GrpcBufferWriterPeer { |
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public: |
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@ -44,35 +45,120 @@ class ProtoUtilsTest : public ::testing::Test {}; |
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// GrpcBufferWriter Next()/Backup() invocations could result in a dangling
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// pointer returned by Next() due to the interaction between grpc_slice inlining
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// and GRPC_SLICE_START_PTR.
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TEST_F(ProtoUtilsTest, BackupNext) { |
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// Ensure the GrpcBufferWriter internals are initialized.
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g_gli_initializer.summon(); |
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TEST_F(ProtoUtilsTest, TinyBackupThenNext) { |
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grpc_byte_buffer* bp; |
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GrpcBufferWriter writer(&bp, 8192); |
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const int block_size = 1024; |
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GrpcBufferWriter writer(&bp, block_size, 8192); |
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GrpcBufferWriterPeer peer(&writer); |
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void* data; |
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int size; |
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// Allocate a slice.
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ASSERT_TRUE(writer.Next(&data, &size)); |
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EXPECT_EQ(8192, size); |
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// Return a single byte. Before the fix that this test acts as a regression
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// for, this would have resulted in an inlined backup slice.
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EXPECT_EQ(block_size, size); |
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// Return a single byte.
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writer.BackUp(1); |
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EXPECT_TRUE(!peer.have_backup()); |
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// On the next allocation, the slice is non-inlined.
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EXPECT_FALSE(peer.have_backup()); |
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// On the next allocation, the returned slice is non-inlined.
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ASSERT_TRUE(writer.Next(&data, &size)); |
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EXPECT_TRUE(peer.slice().refcount != nullptr); |
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EXPECT_EQ(block_size, size); |
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// Cleanup.
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g_core_codegen_interface->grpc_byte_buffer_destroy(bp); |
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} |
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namespace { |
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// Set backup_size to 0 to indicate no backup is needed.
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void BufferWriterTest(int block_size, int total_size, int backup_size) { |
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grpc_byte_buffer* bp; |
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GrpcBufferWriter writer(&bp, block_size, total_size); |
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int written_size = 0; |
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void* data; |
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int size = 0; |
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bool backed_up_entire_slice = false; |
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while (written_size < total_size) { |
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EXPECT_TRUE(writer.Next(&data, &size)); |
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EXPECT_GT(size, 0); |
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EXPECT_TRUE(data); |
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int write_size = size; |
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bool should_backup = false; |
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if (backup_size > 0 && size > backup_size) { |
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write_size = size - backup_size; |
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should_backup = true; |
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} else if (size == backup_size && !backed_up_entire_slice) { |
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// only backup entire slice once.
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backed_up_entire_slice = true; |
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should_backup = true; |
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write_size = 0; |
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} |
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// May need a last backup.
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if (write_size + written_size > total_size) { |
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write_size = total_size - written_size; |
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should_backup = true; |
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backup_size = size - write_size; |
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ASSERT_GT(backup_size, 0); |
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} |
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for (int i = 0; i < write_size; i++) { |
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((uint8_t*)data)[i] = written_size % 128; |
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written_size++; |
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} |
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if (should_backup) { |
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writer.BackUp(backup_size); |
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} |
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} |
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EXPECT_EQ(grpc_byte_buffer_length(bp), (size_t)total_size); |
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grpc_byte_buffer_reader reader; |
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grpc_byte_buffer_reader_init(&reader, bp); |
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int read_bytes = 0; |
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while (read_bytes < total_size) { |
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grpc_slice s; |
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EXPECT_TRUE(grpc_byte_buffer_reader_next(&reader, &s)); |
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for (size_t i = 0; i < GRPC_SLICE_LENGTH(s); i++) { |
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EXPECT_EQ(GRPC_SLICE_START_PTR(s)[i], read_bytes % 128); |
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read_bytes++; |
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} |
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grpc_slice_unref(s); |
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} |
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EXPECT_EQ(read_bytes, total_size); |
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grpc_byte_buffer_reader_destroy(&reader); |
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grpc_byte_buffer_destroy(bp); |
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} |
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TEST(WriterTest, TinyBlockTinyBackup) { |
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for (int i = 2; i < (int)GRPC_SLICE_INLINED_SIZE; i++) { |
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BufferWriterTest(i, 256, 1); |
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} |
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} |
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TEST(WriterTest, SmallBlockTinyBackup) { BufferWriterTest(64, 256, 1); } |
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TEST(WriterTest, SmallBlockNoBackup) { BufferWriterTest(64, 256, 0); } |
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TEST(WriterTest, SmallBlockFullBackup) { BufferWriterTest(64, 256, 64); } |
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TEST(WriterTest, LargeBlockTinyBackup) { BufferWriterTest(4096, 8192, 1); } |
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TEST(WriterTest, LargeBlockNoBackup) { BufferWriterTest(4096, 8192, 0); } |
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TEST(WriterTest, LargeBlockFullBackup) { BufferWriterTest(4096, 8192, 4096); } |
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TEST(WriterTest, LargeBlockLargeBackup) { BufferWriterTest(4096, 8192, 4095); } |
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} // namespace
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} // namespace internal
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} // namespace grpc
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int main(int argc, char** argv) { |
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// Ensure the GrpcBufferWriter internals are initialized.
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grpc::internal::GrpcLibraryInitializer init; |
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init.summon(); |
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grpc::GrpcLibraryCodegen lib; |
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::testing::InitGoogleTest(&argc, argv); |
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return RUN_ALL_TESTS(); |
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} |
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Craig Tiller
7 years ago