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720a0f6c78
pmem_phwsync(): The implementation for POWER ISA v3.1 that is compatible with libpmem. pmem_fence(): A dummy implementation for older ISA. While such systems are unlikely to support MAP_SYNC memory mappings, this could be useful when running tests with memory-mapped /dev/shm/*/ib_logfile0 (the "fake PMEM"), to ensure that mariadb-backup will be able to read the latest redo log contents. pmem_persist_init(): Check the availability of POWER ISA v3.1. Thanks to Daniel Black for suggesting this.
33 lines
1.1 KiB
C++
33 lines
1.1 KiB
C++
/*****************************************************************************
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Copyright (c) 2024, MariaDB plc
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; version 2 of the License.
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This program is distributed in the hope that it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
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*****************************************************************************/
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#pragma once
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#include <cstddef>
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#if defined __x86_64__ || defined __aarch64__ || defined __powerpc64__
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struct pmem_control
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{
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void (*persist)(const void *, size_t);
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public:
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pmem_control();
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};
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extern const pmem_control pmem;
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# define pmem_persist(buf, size) pmem.persist(buf, size)
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#else
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void pmem_persist(const void *buf, size_t size);
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#endif
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