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authorDana Robinson <43805+derobins@users.noreply.github.com>2021-05-14 13:00:05 (GMT)
committerGitHub <noreply@github.com>2021-05-14 13:00:05 (GMT)
commit8977e43b7766f4f817fa067b2d22e84b775bf5a2 (patch)
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Brings the thread-safety recursive writer locks to 1.12 (#466)
* First cut at replaceing the existing mutex with a recursive R/W lock. This implementation has the following issues: 1) pthreads implementation only -- we still need a windows version. 2) must investigate thread cancelation issues 3) Error reporting is very poor. I followed the error reporting on the existing thread safe code, but this should be re-visited and improved. Code is currently setup to use the new recursive R/W lock instead of the global mutex to control entry to the library in threadsafe builds. To revert to the global mutex, set H5TS__USE_REC_RW_LOCK_FOR_GLOBAL_MUTEX in H5TSprivate.h to FALSE. Added a reasonably robust regression test for the reursive R/W lock in test/ttsafe_rec_rw_lock.c Note that the change to hl/src/H5LTanalyse.c is an artifact of clang-format. Tested serial threadsafe debug and production on jelly, and also regular serial / debug. On Windows builds, the new recursive R/W lock should not be built and we should use the existing global mutex -- however this is not tested at this time. * Updates CMake to build recursive RW lock test * Updates to allow building on Windows * Moves #if statements to better protect non-RW lock code * Adds configure and CMake options for the recursive RW locks * Committing clang-format changes * Updates RELEASE.txt and the build options * Renames H5TS RW lock things * Makes struct members platform independent Also removes _ptr from identifiers * Partial thread-safety RW locks platform independence * Committing clang-format changes * Pthreads side of things is platform-independent now * Formatted source * Added Windows equivalents for some Pthreads calls * Rename H5TS takedown call to destroy * Reorg of RW lock code * Committing clang-format changes * Changes to Pthreads code after development on Visual Studio * Moves stats macros to static inline functions and tidies memory allocs * Converts RW lock print stats call to use C99 formatting * Fixes typos * Formatted source * Updates the RELEASE.txt note to indicate no Win32 threads support Co-authored-by: github-actions <41898282+github-actions[bot]@users.noreply.github.com>
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