mirror of
https://github.com/ClickHouse/ClickHouse.git
synced 2024-12-15 10:52:30 +00:00
671 lines
17 KiB
C++
671 lines
17 KiB
C++
#include <IO/ReadBufferAIO.h>
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#include <Core/Defines.h>
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#include <filesystem>
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#include <vector>
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#include <iostream>
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#include <fstream>
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#include <functional>
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#include <cstdlib>
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#include <unistd.h>
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namespace
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{
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void run();
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void prepare(std::string & filename, std::string & buf);
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void prepare2(std::string & filename, std::string & buf);
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void prepare3(std::string & filename, std::string & buf);
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void prepare4(std::string & filename, std::string & buf);
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std::string createTmpFile();
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[[noreturn]] void die(const std::string & msg);
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void runTest(unsigned int num, const std::function<bool()> & func);
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bool test1(const std::string & filename);
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bool test2(const std::string & filename, const std::string & buf);
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bool test3(const std::string & filename, const std::string & buf);
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bool test4(const std::string & filename, const std::string & buf);
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bool test5(const std::string & filename, const std::string & buf);
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bool test6(const std::string & filename, const std::string & buf);
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bool test7(const std::string & filename, const std::string & buf);
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bool test8(const std::string & filename, const std::string & buf);
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bool test9(const std::string & filename, const std::string & buf);
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bool test10(const std::string & filename, const std::string & buf);
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bool test11(const std::string & filename);
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bool test12(const std::string & filename, const std::string & buf);
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bool test13(const std::string & filename, const std::string & buf);
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bool test14(const std::string & filename, const std::string & buf);
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bool test15(const std::string & filename, const std::string & buf);
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bool test16(const std::string & filename, const std::string & buf);
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bool test17(const std::string & filename, const std::string & buf);
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bool test18(const std::string & filename, const std::string & buf);
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bool test19(const std::string & filename, const std::string & buf);
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bool test20(const std::string & filename, const std::string & buf);
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void run()
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{
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namespace fs = std::filesystem;
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std::string filename;
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std::string buf;
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prepare(filename, buf);
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std::string filename2;
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std::string buf2;
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prepare(filename2, buf2);
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std::string filename3;
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std::string buf3;
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prepare2(filename3, buf3);
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std::string filename4;
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std::string buf4;
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prepare3(filename4, buf4);
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std::string filename5;
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std::string buf5;
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prepare4(filename5, buf5);
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const std::vector<std::function<bool()>> tests =
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{
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[&]{ return test1(filename); },
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[&]{ return test2(filename, buf); },
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[&]{ return test3(filename, buf); },
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[&]{ return test4(filename, buf); },
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[&]{ return test5(filename, buf); },
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[&]{ return test6(filename, buf); },
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[&]{ return test7(filename, buf); },
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[&]{ return test8(filename, buf); },
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[&]{ return test9(filename, buf); },
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[&]{ return test10(filename, buf); },
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[&]{ return test11(filename); },
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[&]{ return test12(filename, buf); },
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[&]{ return test13(filename2, buf2); },
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[&]{ return test14(filename, buf); },
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[&]{ return test15(filename3, buf3); },
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[&]{ return test16(filename3, buf3); },
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[&]{ return test17(filename4, buf4); },
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[&]{ return test18(filename5, buf5); },
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[&]{ return test19(filename, buf); },
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[&]{ return test20(filename, buf); }
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};
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unsigned int num = 0;
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for (const auto & test : tests)
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{
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++num;
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runTest(num, test);
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}
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fs::remove_all(fs::path(filename).parent_path().string());
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fs::remove_all(fs::path(filename2).parent_path().string());
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fs::remove_all(fs::path(filename3).parent_path().string());
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fs::remove_all(fs::path(filename4).parent_path().string());
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fs::remove_all(fs::path(filename5).parent_path().string());
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}
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void prepare(std::string & filename, std::string & buf)
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{
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static const std::string symbols = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
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filename = createTmpFile();
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size_t n = 10 * DEFAULT_AIO_FILE_BLOCK_SIZE;
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buf.reserve(n);
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for (size_t i = 0; i < n; ++i)
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buf += symbols[i % symbols.length()];
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std::ofstream out(filename.c_str());
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if (!out.is_open())
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die("Could not open file");
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out << buf;
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}
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void prepare2(std::string & filename, std::string & buf)
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{
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filename = createTmpFile();
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buf = "122333444455555666666777777788888888999999999";
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std::ofstream out(filename.c_str());
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if (!out.is_open())
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die("Could not open file");
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out << buf;
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}
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void prepare3(std::string & filename, std::string & buf)
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{
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filename = createTmpFile();
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buf = "122333444455555666666777777788888888999999999";
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std::ofstream out(filename.c_str());
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if (!out.is_open())
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die("Could not open file");
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out.seekp(7, std::ios_base::beg);
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out << buf;
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}
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void prepare4(std::string & filename, std::string & buf)
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{
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static const std::string symbols = "ABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789";
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filename = createTmpFile();
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std::ofstream out(filename.c_str());
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if (!out.is_open())
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die("Could not open file");
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for (size_t i = 0; i < 1340; ++i)
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buf += symbols[i % symbols.length()];
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out.seekp(2984, std::ios_base::beg);
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out << buf;
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}
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std::string createTmpFile()
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{
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char pattern[] = "/tmp/fileXXXXXX";
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char * dir = ::mkdtemp(pattern);
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if (dir == nullptr)
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die("Could not create directory");
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return std::string(dir) + "/foo";
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}
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void die(const std::string & msg)
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{
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std::cout << msg << "\n";
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::exit(EXIT_FAILURE);
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}
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void runTest(unsigned int num, const std::function<bool()> & func)
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{
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bool ok;
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try
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{
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ok = func();
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}
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catch (const DB::Exception & ex)
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{
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ok = false;
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std::cout << "Caught exception " << ex.displayText() << "\n";
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}
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catch (const std::exception & ex)
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{
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ok = false;
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std::cout << "Caught exception " << ex.what() << "\n";
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}
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if (ok)
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std::cout << "Test " << num << " passed\n";
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else
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std::cout << "Test " << num << " failed\n";
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}
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bool test1(const std::string & filename)
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{
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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if (in.getFileName() != filename)
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return false;
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if (in.getFD() == -1)
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return false;
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return true;
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}
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bool test2(const std::string & filename, const std::string & buf)
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{
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std::string newbuf;
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newbuf.resize(buf.length());
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count = in.read(newbuf.data(), newbuf.length());
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if (count != newbuf.length())
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return false;
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return (newbuf == buf);
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}
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bool test3(const std::string & filename, const std::string & buf)
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{
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std::string newbuf;
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newbuf.resize(buf.length());
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size_t requested = 9 * DEFAULT_AIO_FILE_BLOCK_SIZE;
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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in.setMaxBytes(requested);
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size_t count = in.read(newbuf.data(), newbuf.length());
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newbuf.resize(count);
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return (newbuf == buf.substr(0, requested));
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}
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bool test4(const std::string & filename, const std::string & buf)
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{
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std::string newbuf;
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newbuf.resize(buf.length());
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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in.setMaxBytes(0);
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size_t n_read = in.read(newbuf.data(), newbuf.length());
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return n_read == 0;
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}
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bool test5(const std::string & filename, const std::string & buf)
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{
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std::string newbuf;
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newbuf.resize(1 + (DEFAULT_AIO_FILE_BLOCK_SIZE >> 1));
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DB::ReadBufferAIO in(filename, DEFAULT_AIO_FILE_BLOCK_SIZE);
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in.setMaxBytes(1 + (DEFAULT_AIO_FILE_BLOCK_SIZE >> 1));
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size_t count = in.read(newbuf.data(), newbuf.length());
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if (count != newbuf.length())
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return false;
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if (newbuf != buf.substr(0, newbuf.length()))
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return false;
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return true;
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}
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bool test6(const std::string & filename, const std::string & buf)
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{
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std::string newbuf;
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newbuf.resize(buf.length());
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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if (in.getPosition() != 0)
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return false;
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size_t count = in.read(newbuf.data(), newbuf.length());
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if (count != newbuf.length())
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return false;
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if (static_cast<size_t>(in.getPosition()) != buf.length())
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return false;
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return true;
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}
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bool test7(const std::string & filename, const std::string & buf)
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{
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std::string newbuf;
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newbuf.resize(buf.length() - DEFAULT_AIO_FILE_BLOCK_SIZE);
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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(void) in.seek(DEFAULT_AIO_FILE_BLOCK_SIZE, SEEK_SET);
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size_t count = in.read(newbuf.data(), newbuf.length());
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if (count != (9 * DEFAULT_AIO_FILE_BLOCK_SIZE))
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return false;
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return (newbuf == buf.substr(DEFAULT_AIO_FILE_BLOCK_SIZE));
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}
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bool test8(const std::string & filename, const std::string & buf)
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{
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std::string newbuf;
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newbuf.resize(DEFAULT_AIO_FILE_BLOCK_SIZE - 1);
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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(void) in.seek(DEFAULT_AIO_FILE_BLOCK_SIZE + 1, SEEK_CUR);
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size_t count = in.read(newbuf.data(), newbuf.length());
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if (count != newbuf.length())
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return false;
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if (newbuf != buf.substr(DEFAULT_AIO_FILE_BLOCK_SIZE + 1, newbuf.length()))
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return false;
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return true;
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}
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bool test9(const std::string & filename, const std::string & buf)
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{
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bool ok = false;
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try
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{
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std::string newbuf;
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newbuf.resize(buf.length());
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count = in.read(newbuf.data(), newbuf.length());
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if (count != newbuf.length())
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return false;
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in.setMaxBytes(9 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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}
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catch (const DB::Exception &)
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{
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ok = true;
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}
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return ok;
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}
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bool test10(const std::string & filename, const std::string & buf)
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{
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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{
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std::string newbuf;
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newbuf.resize(4 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count1 = in.read(newbuf.data(), newbuf.length());
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if (count1 != newbuf.length())
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return false;
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if (newbuf != buf.substr(0, 4 * DEFAULT_AIO_FILE_BLOCK_SIZE))
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return false;
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}
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(void) in.seek(2 * DEFAULT_AIO_FILE_BLOCK_SIZE, SEEK_CUR);
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{
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std::string newbuf;
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newbuf.resize(4 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count2 = in.read(newbuf.data(), newbuf.length());
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if (count2 != newbuf.length())
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return false;
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if (newbuf != buf.substr(6 * DEFAULT_AIO_FILE_BLOCK_SIZE))
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return false;
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}
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return true;
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}
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bool test11(const std::string & filename)
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{
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bool ok = false;
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try
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{
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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(void) in.seek(-DEFAULT_AIO_FILE_BLOCK_SIZE, SEEK_SET);
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}
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catch (const DB::Exception &)
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{
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ok = true;
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}
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return ok;
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}
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bool test12(const std::string & filename, const std::string &)
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{
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bool ok = false;
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try
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{
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std::string newbuf;
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newbuf.resize(4 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count = in.read(newbuf.data(), newbuf.length());
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if (count != newbuf.length())
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return false;
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(void) in.seek(-(10 * DEFAULT_AIO_FILE_BLOCK_SIZE), SEEK_CUR);
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}
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catch (const DB::Exception &)
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{
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ok = true;
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}
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return ok;
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}
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bool test13(const std::string & filename, const std::string &)
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{
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std::string newbuf;
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newbuf.resize(2 * DEFAULT_AIO_FILE_BLOCK_SIZE - 3);
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DB::ReadBufferAIO in(filename, DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count1 = in.read(newbuf.data(), newbuf.length());
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return count1 == newbuf.length();
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}
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bool test14(const std::string & filename, const std::string & buf)
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{
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std::string newbuf;
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newbuf.resize(1 + (DEFAULT_AIO_FILE_BLOCK_SIZE >> 1));
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DB::ReadBufferAIO in(filename, DEFAULT_AIO_FILE_BLOCK_SIZE);
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(void) in.seek(2, SEEK_SET);
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in.setMaxBytes(3 + (DEFAULT_AIO_FILE_BLOCK_SIZE >> 1));
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size_t count = in.read(newbuf.data(), newbuf.length());
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if (count != newbuf.length())
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return false;
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if (newbuf != buf.substr(2, newbuf.length()))
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return false;
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return true;
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}
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bool test15(const std::string & filename, const std::string &)
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{
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std::string newbuf;
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newbuf.resize(1000);
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DB::ReadBufferAIO in(filename, DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count = in.read(newbuf.data(), 1);
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if (count != 1)
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return false;
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if (newbuf[0] != '1')
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return false;
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return true;
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}
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bool test16(const std::string & filename, const std::string &)
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{
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DB::ReadBufferAIO in(filename, DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count;
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{
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std::string newbuf;
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newbuf.resize(1);
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count = in.read(newbuf.data(), 1);
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if (count != 1)
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return false;
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if (newbuf[0] != '1')
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return false;
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}
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in.seek(2, SEEK_CUR);
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{
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std::string newbuf;
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newbuf.resize(3);
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count = in.read(newbuf.data(), 3);
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if (count != 3)
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return false;
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if (newbuf != "333")
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return false;
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}
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in.seek(4, SEEK_CUR);
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{
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std::string newbuf;
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newbuf.resize(5);
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count = in.read(newbuf.data(), 5);
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if (count != 5)
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return false;
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if (newbuf != "55555")
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return false;
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}
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in.seek(6, SEEK_CUR);
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{
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std::string newbuf;
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newbuf.resize(7);
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count = in.read(newbuf.data(), 7);
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if (count != 7)
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return false;
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if (newbuf != "7777777")
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return false;
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}
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in.seek(8, SEEK_CUR);
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{
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std::string newbuf;
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newbuf.resize(9);
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count = in.read(newbuf.data(), 9);
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if (count != 9)
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return false;
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if (newbuf != "999999999")
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return false;
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}
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return true;
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}
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bool test17(const std::string & filename, const std::string & buf)
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{
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DB::ReadBufferAIO in(filename, DEFAULT_AIO_FILE_BLOCK_SIZE);
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size_t count;
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{
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std::string newbuf;
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newbuf.resize(10);
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count = in.read(newbuf.data(), 10);
|
|
|
|
if (count != 10)
|
|
return false;
|
|
if (newbuf.substr(0, 7) != std::string(7, '\0'))
|
|
return false;
|
|
if (newbuf.substr(7) != "122")
|
|
return false;
|
|
}
|
|
|
|
in.seek(7 + buf.length() - 2, SEEK_SET);
|
|
|
|
{
|
|
std::string newbuf;
|
|
newbuf.resize(160);
|
|
count = in.read(newbuf.data(), 160);
|
|
|
|
if (count != 2)
|
|
return false;
|
|
if (newbuf.substr(0, 2) != "99")
|
|
return false;
|
|
}
|
|
|
|
in.seek(7 + buf.length() + DEFAULT_AIO_FILE_BLOCK_SIZE, SEEK_SET);
|
|
|
|
{
|
|
std::string newbuf;
|
|
newbuf.resize(50);
|
|
count = in.read(newbuf.data(), 50);
|
|
if (count != 0)
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool test18(const std::string & filename, const std::string & buf)
|
|
{
|
|
DB::ReadBufferAIO in(filename, DEFAULT_AIO_FILE_BLOCK_SIZE);
|
|
|
|
std::string newbuf;
|
|
newbuf.resize(1340);
|
|
|
|
in.seek(2984, SEEK_SET);
|
|
size_t count = in.read(newbuf.data(), 1340);
|
|
|
|
if (count != 1340)
|
|
return false;
|
|
if (newbuf != buf)
|
|
return false;
|
|
|
|
return true;
|
|
}
|
|
|
|
bool test19(const std::string & filename, const std::string & buf)
|
|
{
|
|
DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
|
|
|
|
{
|
|
std::string newbuf;
|
|
newbuf.resize(5 * DEFAULT_AIO_FILE_BLOCK_SIZE);
|
|
|
|
size_t count1 = in.read(newbuf.data(), newbuf.length());
|
|
if (count1 != newbuf.length())
|
|
return false;
|
|
|
|
if (newbuf != buf.substr(0, 5 * DEFAULT_AIO_FILE_BLOCK_SIZE))
|
|
return false;
|
|
}
|
|
|
|
{
|
|
std::string newbuf;
|
|
newbuf.resize(5 * DEFAULT_AIO_FILE_BLOCK_SIZE);
|
|
|
|
size_t count2 = in.read(newbuf.data(), newbuf.length());
|
|
if (count2 != newbuf.length())
|
|
return false;
|
|
|
|
if (newbuf != buf.substr(5 * DEFAULT_AIO_FILE_BLOCK_SIZE))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
bool test20(const std::string & filename, const std::string & buf)
|
|
{
|
|
DB::ReadBufferAIO in(filename, 3 * DEFAULT_AIO_FILE_BLOCK_SIZE);
|
|
|
|
{
|
|
std::string newbuf;
|
|
newbuf.resize(5 * DEFAULT_AIO_FILE_BLOCK_SIZE);
|
|
|
|
size_t count1 = in.read(newbuf.data(), newbuf.length());
|
|
if (count1 != newbuf.length())
|
|
return false;
|
|
|
|
if (newbuf != buf.substr(0, 5 * DEFAULT_AIO_FILE_BLOCK_SIZE))
|
|
return false;
|
|
}
|
|
|
|
(void) in.getPosition();
|
|
|
|
{
|
|
std::string newbuf;
|
|
newbuf.resize(5 * DEFAULT_AIO_FILE_BLOCK_SIZE);
|
|
|
|
size_t count2 = in.read(newbuf.data(), newbuf.length());
|
|
if (count2 != newbuf.length())
|
|
return false;
|
|
|
|
if (newbuf != buf.substr(5 * DEFAULT_AIO_FILE_BLOCK_SIZE))
|
|
return false;
|
|
}
|
|
|
|
return true;
|
|
}
|
|
|
|
}
|
|
|
|
int main()
|
|
{
|
|
run();
|
|
return 0;
|
|
}
|