projects / ceph.git / blame
| Commit | Line | Data |
|---|---|---|
| 7c673cae FG |
1 | /* |
| 2 | * Ceph - scalable distributed file system | |
| 3 | * | |
| 4 | * Copyright (C) 2015 Mirantis, Inc. | |
| 5 | * | |
| 6 | * Author: Alyona Kiseleva <akiselyova@mirantis.com> | |
| 7 | * | |
| 8 | * This library is free software; you can redistribute it and/or | |
| 9 | * modify it under the terms of the GNU Lesser General Public | |
| 10 | * License as published by the Free Software Foundation; either | |
| 11 | * version 2.1 of the License, or (at your option) any later version. | |
| 12 | * | |
| 13 | */ | |
| 14 | ||
| 15 | #ifndef CEPH_COMPRESSION_PLUGIN_ZLIB_H | |
| 16 | #define CEPH_COMPRESSION_PLUGIN_ZLIB_H | |
| 17 | ||
| 18 | // ----------------------------------------------------------------------------- | |
| 19 | #include "arch/probe.h" | |
| 20 | #include "arch/intel.h" | |
| 21 | #include "arch/arm.h" | |
| 7c673cae FG |
22 | #include "compressor/CompressionPlugin.h" |
| 23 | #include "ZlibCompressor.h" | |
| 24 | ||
| 25 | // ----------------------------------------------------------------------------- | |
| 26 | ||
| 27 | class CompressionPluginZlib : public CompressionPlugin { | |
| 28 | public: | |
| 29 | bool has_isal = false; | |
| 30 | ||
| 31 | explicit CompressionPluginZlib(CephContext *cct) : CompressionPlugin(cct) | |
| 32 | {} | |
| 33 | ||
| 34 | int factory(CompressorRef *cs, | |
| 35 | std::ostream *ss) override | |
| 36 | { | |
| 37 | bool isal = false; | |
| 38 | #if defined(__i386__) || defined(__x86_64__) | |
| 39 | // other arches or lack of support result in isal = false | |
| 40 | if (cct->_conf->compressor_zlib_isal) { | |
| 41 | ceph_arch_probe(); | |
| 42 | isal = (ceph_arch_intel_pclmul && ceph_arch_intel_sse41); | |
| 43 | } | |
| 44 | #endif | |
| 45 | if (compressor == 0 || has_isal != isal) { | |
| 224ce89b | 46 | compressor = std::make_shared<ZlibCompressor>(cct, isal); |
| 7c673cae FG |
47 | has_isal = isal; |
| 48 | } | |
| 49 | *cs = compressor; | |
| 50 | return 0; | |
| 51 | } | |
| 52 | }; | |
| 53 | ||
| 54 | #endif |