作者: 谢瑞阳 10225101483 徐翔宇 10225101535

111 Zeilen
3.1 KiB

Release 1.18 Changes are: * Update version number to 1.18 * Replace the basic fprintf call with a call to fwrite in order to work around the apparent compiler optimization/rewrite failure that we are seeing with the new toolchain/iOS SDKs provided with Xcode6 and iOS8. * Fix ALL the header guards. * Createed a README.md with the LevelDB project description. * A new CONTRIBUTING file. * Don't implicitly convert uint64_t to size_t or int. Either preserve it as uint64_t, or explicitly cast. This fixes MSVC warnings about possible value truncation when compiling this code in Chromium. * Added a DumpFile() library function that encapsulates the guts of the "leveldbutil dump" command. This will allow clients to dump data to their log files instead of stdout. It will also allow clients to supply their own environment. * leveldb: Remove unused function 'ConsumeChar'. * leveldbutil: Remove unused member variables from WriteBatchItemPrinter. * OpenBSD, NetBSD and DragonflyBSD have _LITTLE_ENDIAN, so define PLATFORM_IS_LITTLE_ENDIAN like on FreeBSD. This fixes: * issue #143 * issue #198 * issue #249 * Switch from <cstdatomic> to <atomic>. The former never made it into the standard and doesn't exist in modern gcc versions at all. The later contains everything that leveldb was using from the former. This problem was noticed when porting to Portable Native Client where no memory barrier is defined. The fact that <cstdatomic> is missing normally goes unnoticed since memory barriers are defined for most architectures. * Make Hash() treat its input as unsigned. Before this change LevelDB files from platforms with different signedness of char were not compatible. This change fixes: issue #243 * Verify checksums of index/meta/filter blocks when paranoid_checks set. * Invoke all tools for iOS with xcrun. (This was causing problems with the new XCode 5.1.1 image on pulse.) * include <sys/stat.h> only once, and fix the following linter warning: "Found C system header after C++ system header" * When encountering a corrupted table file, return Status::Corruption instead of Status::InvalidArgument. * Support cygwin as build platform, patch is from https://code.google.com/p/leveldb/issues/detail?id=188 * Fix typo, merge patch from https://code.google.com/p/leveldb/issues/detail?id=159 * Fix typos and comments, and address the following two issues: * issue #166 * issue #241 * Add missing db synchronize after "fillseq" in the benchmark. * Removed unused variable in SeekRandom: value (issue #201)
vor 10 Jahren
Release 1.18 Changes are: * Update version number to 1.18 * Replace the basic fprintf call with a call to fwrite in order to work around the apparent compiler optimization/rewrite failure that we are seeing with the new toolchain/iOS SDKs provided with Xcode6 and iOS8. * Fix ALL the header guards. * Createed a README.md with the LevelDB project description. * A new CONTRIBUTING file. * Don't implicitly convert uint64_t to size_t or int. Either preserve it as uint64_t, or explicitly cast. This fixes MSVC warnings about possible value truncation when compiling this code in Chromium. * Added a DumpFile() library function that encapsulates the guts of the "leveldbutil dump" command. This will allow clients to dump data to their log files instead of stdout. It will also allow clients to supply their own environment. * leveldb: Remove unused function 'ConsumeChar'. * leveldbutil: Remove unused member variables from WriteBatchItemPrinter. * OpenBSD, NetBSD and DragonflyBSD have _LITTLE_ENDIAN, so define PLATFORM_IS_LITTLE_ENDIAN like on FreeBSD. This fixes: * issue #143 * issue #198 * issue #249 * Switch from <cstdatomic> to <atomic>. The former never made it into the standard and doesn't exist in modern gcc versions at all. The later contains everything that leveldb was using from the former. This problem was noticed when porting to Portable Native Client where no memory barrier is defined. The fact that <cstdatomic> is missing normally goes unnoticed since memory barriers are defined for most architectures. * Make Hash() treat its input as unsigned. Before this change LevelDB files from platforms with different signedness of char were not compatible. This change fixes: issue #243 * Verify checksums of index/meta/filter blocks when paranoid_checks set. * Invoke all tools for iOS with xcrun. (This was causing problems with the new XCode 5.1.1 image on pulse.) * include <sys/stat.h> only once, and fix the following linter warning: "Found C system header after C++ system header" * When encountering a corrupted table file, return Status::Corruption instead of Status::InvalidArgument. * Support cygwin as build platform, patch is from https://code.google.com/p/leveldb/issues/detail?id=188 * Fix typo, merge patch from https://code.google.com/p/leveldb/issues/detail?id=159 * Fix typos and comments, and address the following two issues: * issue #166 * issue #241 * Add missing db synchronize after "fillseq" in the benchmark. * Removed unused variable in SeekRandom: value (issue #201)
vor 10 Jahren
  1. // Copyright (c) 2012 The LevelDB Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file. See the AUTHORS file for names of contributors.
  4. #ifndef STORAGE_LEVELDB_PORT_THREAD_ANNOTATIONS_H_
  5. #define STORAGE_LEVELDB_PORT_THREAD_ANNOTATIONS_H_
  6. // Use Clang's thread safety analysis annotations when available. In other
  7. // environments, the macros receive empty definitions.
  8. // Usage documentation: https://clang.llvm.org/docs/ThreadSafetyAnalysis.html
  9. #if !defined(THREAD_ANNOTATION_ATTRIBUTE__)
  10. #if defined(__clang__)
  11. #define THREAD_ANNOTATION_ATTRIBUTE__(x) __attribute__((x))
  12. #else
  13. #define THREAD_ANNOTATION_ATTRIBUTE__(x) // no-op
  14. #endif
  15. #endif // !defined(THREAD_ANNOTATION_ATTRIBUTE__)
  16. #ifndef GUARDED_BY
  17. #define GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(guarded_by(x))
  18. #endif
  19. #ifndef PT_GUARDED_BY
  20. #define PT_GUARDED_BY(x) THREAD_ANNOTATION_ATTRIBUTE__(pt_guarded_by(x))
  21. #endif
  22. #ifndef ACQUIRED_AFTER
  23. #define ACQUIRED_AFTER(...) \
  24. THREAD_ANNOTATION_ATTRIBUTE__(acquired_after(__VA_ARGS__))
  25. #endif
  26. #ifndef ACQUIRED_BEFORE
  27. #define ACQUIRED_BEFORE(...) \
  28. THREAD_ANNOTATION_ATTRIBUTE__(acquired_before(__VA_ARGS__))
  29. #endif
  30. #ifndef EXCLUSIVE_LOCKS_REQUIRED
  31. #define EXCLUSIVE_LOCKS_REQUIRED(...) \
  32. THREAD_ANNOTATION_ATTRIBUTE__(exclusive_locks_required(__VA_ARGS__))
  33. #endif
  34. #ifndef SHARED_LOCKS_REQUIRED
  35. #define SHARED_LOCKS_REQUIRED(...) \
  36. THREAD_ANNOTATION_ATTRIBUTE__(shared_locks_required(__VA_ARGS__))
  37. #endif
  38. #ifndef LOCKS_EXCLUDED
  39. #define LOCKS_EXCLUDED(...) \
  40. THREAD_ANNOTATION_ATTRIBUTE__(locks_excluded(__VA_ARGS__))
  41. #endif
  42. #ifndef LOCK_RETURNED
  43. #define LOCK_RETURNED(x) \
  44. THREAD_ANNOTATION_ATTRIBUTE__(lock_returned(x))
  45. #endif
  46. #ifndef LOCKABLE
  47. #define LOCKABLE \
  48. THREAD_ANNOTATION_ATTRIBUTE__(lockable)
  49. #endif
  50. #ifndef SCOPED_LOCKABLE
  51. #define SCOPED_LOCKABLE \
  52. THREAD_ANNOTATION_ATTRIBUTE__(scoped_lockable)
  53. #endif
  54. #ifndef EXCLUSIVE_LOCK_FUNCTION
  55. #define EXCLUSIVE_LOCK_FUNCTION(...) \
  56. THREAD_ANNOTATION_ATTRIBUTE__(exclusive_lock_function(__VA_ARGS__))
  57. #endif
  58. #ifndef SHARED_LOCK_FUNCTION
  59. #define SHARED_LOCK_FUNCTION(...) \
  60. THREAD_ANNOTATION_ATTRIBUTE__(shared_lock_function(__VA_ARGS__))
  61. #endif
  62. #ifndef EXCLUSIVE_TRYLOCK_FUNCTION
  63. #define EXCLUSIVE_TRYLOCK_FUNCTION(...) \
  64. THREAD_ANNOTATION_ATTRIBUTE__(exclusive_trylock_function(__VA_ARGS__))
  65. #endif
  66. #ifndef SHARED_TRYLOCK_FUNCTION
  67. #define SHARED_TRYLOCK_FUNCTION(...) \
  68. THREAD_ANNOTATION_ATTRIBUTE__(shared_trylock_function(__VA_ARGS__))
  69. #endif
  70. #ifndef UNLOCK_FUNCTION
  71. #define UNLOCK_FUNCTION(...) \
  72. THREAD_ANNOTATION_ATTRIBUTE__(unlock_function(__VA_ARGS__))
  73. #endif
  74. #ifndef NO_THREAD_SAFETY_ANALYSIS
  75. #define NO_THREAD_SAFETY_ANALYSIS \
  76. THREAD_ANNOTATION_ATTRIBUTE__(no_thread_safety_analysis)
  77. #endif
  78. #ifndef ASSERT_EXCLUSIVE_LOCK
  79. #define ASSERT_EXCLUSIVE_LOCK(...) \
  80. THREAD_ANNOTATION_ATTRIBUTE__(assert_exclusive_lock(__VA_ARGS__))
  81. #endif
  82. #ifndef ASSERT_SHARED_LOCK
  83. #define ASSERT_SHARED_LOCK(...) \
  84. THREAD_ANNOTATION_ATTRIBUTE__(assert_shared_lock(__VA_ARGS__))
  85. #endif
  86. #endif // STORAGE_LEVELDB_PORT_THREAD_ANNOTATIONS_H_