diff options
Diffstat (limited to 'release_docs')
-rw-r--r-- | release_docs/RELEASE.txt | 56 |
1 files changed, 56 insertions, 0 deletions
diff --git a/release_docs/RELEASE.txt b/release_docs/RELEASE.txt index f03b1be..e063506 100644 --- a/release_docs/RELEASE.txt +++ b/release_docs/RELEASE.txt @@ -201,6 +201,49 @@ New Features Library: -------- + - HSYS_GOTO_ERROR now emits the results of GetLastError() on Windows + + HSYS_GOTO_ERROR is an internal macro that is used to produce error + messages when system calls fail. These strings include errno and the + the associated strerror() value, which are not particularly useful + when a Win32 API call fails. + + On Windows, this macro has been updated to include the result of + GetLastError(). When a system call fails on Windows, usually only + one of errno and GetLastError() will be useful, however we emit both + for the user to parse. The Windows error message is not emitted as + it would be awkward to free the FormatMessage() buffer given the + existing HDF5 error framework. Users will have to look up the error + codes in MSDN. + + The format string on Windows has been changed from: + + "%s, errno = %d, error message = '%s'" + + to: + + "%s, errno = %d, error message = '%s', Win32 GetLastError() = %"PRIu32"" + + for those inclined to parse it for error values. + + (DER - 2021/03/21) + + - File locking now works on Windows + + Since version 1.10.0, the HDF5 library has used a file locking scheme + to help enforce one reader at a time accessing an HDF5 file, which can + be helpful when setting up readers and writers to use the single- + writer/multiple-readers (SWMR) access pattern. + + In the past, this was only functional on POSIX systems where flock() or + fcntl() were present. Windows used a no-op stub that always succeeded. + + HDF5 now uses LockFileEx() and UnlockFileEx() to lock the file using the + same scheme as POSIX systems. We lock the entire file when we set up the + locks (by passing DWORDMAX as both size parameters to LockFileEx()). + + (DER - 2021/03/19, HDFFV-10191) + - H5Epush_ret() now requires a trailing semicolon H5Epush_ret() is a function-like macro that has been changed to @@ -319,6 +362,19 @@ Bug Fixes since HDF5-1.10.7 release Configuration ------------- + - Remove arbitrary warning flag groups from CMake builds + + The arbitrary groups were created to reduce the quantity of warnings being + reported that overwhelmed testing report systems. Considerable work has + been accomplished to reduce the warning count and these arbitrary groups + are no longer needed. + Also the default for all warnings, HDF5_ENABLE_ALL_WARNINGS, is now ON. + + Visual Studio warnings C4100, C4706, and C4127 have been moved to + developer warnings, HDF5_ENABLE_DEV_WARNINGS, and are disabled for normal builds. + + (ADB - 2021/03/22, HDFFV-11228) + - Reclassify CMake messages, to allow new modes and --log-level option CMake message commands have a mode argument. By default, STATUS mode |