e970248602
Summary: This PR adds support for building on s390x including updating travis CI. It uses the previous work in https://github.com/facebook/rocksdb/pull/6168 and adds some more changes to get all current tests (make check and jni tests) to pass. The tests were run with snappy, lz4, bzip2 and zstd all compiled in. There are a few pieces still needed to get the travis build working that I don't think I can do. adamretter is this something you could help with? 1. A prebuilt https://rocksdb-deps.s3-us-west-2.amazonaws.com/cmake/cmake-3.14.5-Linux-s390x.deb package 2. A https://hub.docker.com/r/evolvedbinary/rocksjava s390x image Not sure if there is more required for travis. Happy to help in any way I can. Pull Request resolved: https://github.com/facebook/rocksdb/pull/8962 Reviewed By: mrambacher Differential Revision: D31802198 Pulled By: pdillinger fbshipit-source-id: 683511466fa6b505f85ba5a9964a268c6151f0c2
237 lines
6.3 KiB
C++
237 lines
6.3 KiB
C++
// Copyright (c) 2011-present, Facebook, Inc. All rights reserved.
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// This source code is licensed under both the GPLv2 (found in the
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// COPYING file in the root directory) and Apache 2.0 License
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// (found in the LICENSE.Apache file in the root directory).
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//
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// Copyright (c) 2011 The LevelDB Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style license that can be
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// found in the LICENSE file. See the AUTHORS file for names of contributors.
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//
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// See port_example.h for documentation for the following types/functions.
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#pragma once
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#include <thread>
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#include "rocksdb/options.h"
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#include "rocksdb/rocksdb_namespace.h"
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// size_t printf formatting named in the manner of C99 standard formatting
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// strings such as PRIu64
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// in fact, we could use that one
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#define ROCKSDB_PRIszt "zu"
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#define __declspec(S)
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#define ROCKSDB_NOEXCEPT noexcept
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#undef PLATFORM_IS_LITTLE_ENDIAN
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#if defined(OS_MACOSX)
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#include <machine/endian.h>
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#if defined(__DARWIN_LITTLE_ENDIAN) && defined(__DARWIN_BYTE_ORDER)
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#define PLATFORM_IS_LITTLE_ENDIAN \
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(__DARWIN_BYTE_ORDER == __DARWIN_LITTLE_ENDIAN)
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#endif
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#elif defined(OS_SOLARIS)
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#include <sys/isa_defs.h>
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#ifdef _LITTLE_ENDIAN
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#define PLATFORM_IS_LITTLE_ENDIAN true
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#else
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#define PLATFORM_IS_LITTLE_ENDIAN false
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#endif
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#include <alloca.h>
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#elif defined(OS_AIX)
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#include <sys/types.h>
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#include <arpa/nameser_compat.h>
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#define PLATFORM_IS_LITTLE_ENDIAN (BYTE_ORDER == LITTLE_ENDIAN)
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#include <alloca.h>
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#elif defined(OS_FREEBSD) || defined(OS_OPENBSD) || defined(OS_NETBSD) || \
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defined(OS_DRAGONFLYBSD) || defined(OS_ANDROID)
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#include <sys/endian.h>
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#include <sys/types.h>
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#define PLATFORM_IS_LITTLE_ENDIAN (_BYTE_ORDER == _LITTLE_ENDIAN)
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#else
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#include <endian.h>
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#endif
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#include <pthread.h>
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#include <stdint.h>
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#include <string.h>
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#include <limits>
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#include <string>
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#ifndef PLATFORM_IS_LITTLE_ENDIAN
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#define PLATFORM_IS_LITTLE_ENDIAN (__BYTE_ORDER == __LITTLE_ENDIAN)
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#endif
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#if defined(OS_MACOSX) || defined(OS_SOLARIS) || defined(OS_FREEBSD) ||\
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defined(OS_NETBSD) || defined(OS_OPENBSD) || defined(OS_DRAGONFLYBSD) ||\
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defined(OS_ANDROID) || defined(CYGWIN) || defined(OS_AIX)
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// Use fread/fwrite/fflush on platforms without _unlocked variants
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#define fread_unlocked fread
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#define fwrite_unlocked fwrite
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#define fflush_unlocked fflush
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#endif
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#if defined(OS_MACOSX) || defined(OS_FREEBSD) ||\
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defined(OS_OPENBSD) || defined(OS_DRAGONFLYBSD)
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// Use fsync() on platforms without fdatasync()
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#define fdatasync fsync
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#endif
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#if defined(OS_ANDROID) && __ANDROID_API__ < 9
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// fdatasync() was only introduced in API level 9 on Android. Use fsync()
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// when targeting older platforms.
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#define fdatasync fsync
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#endif
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namespace ROCKSDB_NAMESPACE {
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extern const bool kDefaultToAdaptiveMutex;
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namespace port {
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// For use at db/file_indexer.h kLevelMaxIndex
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const uint32_t kMaxUint32 = std::numeric_limits<uint32_t>::max();
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const int kMaxInt32 = std::numeric_limits<int32_t>::max();
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const int kMinInt32 = std::numeric_limits<int32_t>::min();
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const uint64_t kMaxUint64 = std::numeric_limits<uint64_t>::max();
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const int64_t kMaxInt64 = std::numeric_limits<int64_t>::max();
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const int64_t kMinInt64 = std::numeric_limits<int64_t>::min();
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const size_t kMaxSizet = std::numeric_limits<size_t>::max();
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constexpr bool kLittleEndian = PLATFORM_IS_LITTLE_ENDIAN;
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#undef PLATFORM_IS_LITTLE_ENDIAN
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class CondVar;
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class Mutex {
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public:
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explicit Mutex(bool adaptive = kDefaultToAdaptiveMutex);
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// No copying
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Mutex(const Mutex&) = delete;
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void operator=(const Mutex&) = delete;
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~Mutex();
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void Lock();
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void Unlock();
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bool TryLock();
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// this will assert if the mutex is not locked
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// it does NOT verify that mutex is held by a calling thread
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void AssertHeld();
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private:
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friend class CondVar;
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pthread_mutex_t mu_;
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#ifndef NDEBUG
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bool locked_ = false;
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#endif
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};
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class RWMutex {
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public:
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RWMutex();
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// No copying allowed
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RWMutex(const RWMutex&) = delete;
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void operator=(const RWMutex&) = delete;
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~RWMutex();
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void ReadLock();
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void WriteLock();
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void ReadUnlock();
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void WriteUnlock();
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void AssertHeld() { }
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private:
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pthread_rwlock_t mu_; // the underlying platform mutex
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};
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class CondVar {
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public:
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explicit CondVar(Mutex* mu);
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~CondVar();
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void Wait();
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// Timed condition wait. Returns true if timeout occurred.
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bool TimedWait(uint64_t abs_time_us);
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void Signal();
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void SignalAll();
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private:
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pthread_cond_t cv_;
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Mutex* mu_;
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};
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using Thread = std::thread;
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static inline void AsmVolatilePause() {
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#if defined(__i386__) || defined(__x86_64__)
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asm volatile("pause");
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#elif defined(__aarch64__)
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asm volatile("yield");
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#elif defined(__powerpc64__)
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asm volatile("or 27,27,27");
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#endif
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// it's okay for other platforms to be no-ops
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}
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// Returns -1 if not available on this platform
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extern int PhysicalCoreID();
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using OnceType = pthread_once_t;
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#define LEVELDB_ONCE_INIT PTHREAD_ONCE_INIT
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extern void InitOnce(OnceType* once, void (*initializer)());
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#ifndef CACHE_LINE_SIZE
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// To test behavior with non-native cache line size, e.g. for
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// Bloom filters, set TEST_CACHE_LINE_SIZE to the desired test size.
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// This disables ALIGN_AS to keep it from failing compilation.
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#ifdef TEST_CACHE_LINE_SIZE
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#define CACHE_LINE_SIZE TEST_CACHE_LINE_SIZE
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#define ALIGN_AS(n) /*empty*/
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#else
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#if defined(__s390__)
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#if defined(__GNUC__) && __GNUC__ < 6
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#define CACHE_LINE_SIZE 64U
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#else
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#define CACHE_LINE_SIZE 256U
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#endif
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#elif defined(__powerpc__) || defined(__aarch64__)
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#define CACHE_LINE_SIZE 128U
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#else
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#define CACHE_LINE_SIZE 64U
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#endif
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#define ALIGN_AS(n) alignas(n)
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#endif
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#endif
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static_assert((CACHE_LINE_SIZE & (CACHE_LINE_SIZE - 1)) == 0,
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"Cache line size must be a power of 2 number of bytes");
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extern void *cacheline_aligned_alloc(size_t size);
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extern void cacheline_aligned_free(void *memblock);
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#define PREFETCH(addr, rw, locality) __builtin_prefetch(addr, rw, locality)
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extern void Crash(const std::string& srcfile, int srcline);
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extern int GetMaxOpenFiles();
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extern const size_t kPageSize;
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using ThreadId = pid_t;
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extern void SetCpuPriority(ThreadId id, CpuPriority priority);
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int64_t GetProcessID();
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// Uses platform APIs to generate a 36-character RFC-4122 UUID. Returns
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// true on success or false on failure.
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bool GenerateRfcUuid(std::string* output);
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} // namespace port
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} // namespace ROCKSDB_NAMESPACE
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