mirror of
https://github.com/HDFGroup/hdf5.git
synced 2026-09-25 04:09:44 +03:00
Quincey Koziol
9fd88560d5
Complete overhaul of the concurrency-related aspects of the library (threading, atomics, locking, etc.), adding private routines in the H5TS package to allow internal algorithms to use all of these capabilities. Adds many new features & components in the H5TS package that are equivalent to common concurrency data structures and capabilities: "regular" and recursive mutices, condition variables, semaphores, thread barriers, 'once' support, thread pools, atomic variables, thread-local keys, and spawning & joining internal threads. Now supports C11, pthreads, and Windows threading for all H5TS capabilities, except the recursive readers/writers lock, which is not supported on Windows (because Windows threads don't provide a callback on thread-local variable deletion). The "global" API lock is switched to use a recursive mutex from the H5TS package, instead of its own variant. API context code (H5CX package) and error stacks (H5E package) now use the common thread-local info, instead of their own variants. Subfiling code is switched from using Mercury threading features to the new internal H5TS features. Removes the mercury threading code. Adds a configure option (--enable-threads / HDF5_ENABLE_THREADS), enabled by default, to control whether threading is enabled within the library.
51 lines
1.6 KiB
C
51 lines
1.6 KiB
C
/* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * *
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* Copyright by The HDF Group. *
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* All rights reserved. *
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* *
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* This file is part of HDF5. The full HDF5 copyright notice, including *
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* terms governing use, modification, and redistribution, is contained in *
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* the COPYING file, which can be found at the root of the source code *
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* distribution tree, or in https://www.hdfgroup.org/licenses. *
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* If you do not have access to either file, you may request a copy from *
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* help@hdfgroup.org. *
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* * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * * */
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/*
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* This file contains public declarations for the H5TS (threadsafety) developer
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* support routines.
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*/
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#ifndef H5TSdevelop_H
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#define H5TSdevelop_H
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/*****************/
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/* Public Macros */
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/*****************/
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/*******************/
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/* Public Typedefs */
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/*******************/
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/********************/
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/* Public Variables */
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/********************/
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/*********************/
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/* Public Prototypes */
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/*********************/
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#ifdef __cplusplus
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extern "C" {
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#endif
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/* HDF5 global library lock routines */
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H5_DLL herr_t H5TSmutex_acquire(unsigned lock_count, bool *acquired);
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H5_DLL herr_t H5TSmutex_release(unsigned *lock_count);
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H5_DLL herr_t H5TSmutex_get_attempt_count(unsigned *count);
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#ifdef __cplusplus
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}
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#endif
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#endif /* H5TSdevelop_H */
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