diff options
author | David Grogan <dgrogan@chromium.org> | 2012-10-12 11:53:12 -0700 |
---|---|---|
committer | David Grogan <dgrogan@chromium.org> | 2012-10-12 11:53:12 -0700 |
commit | 946e5b5a4ce7980917b22a408f090a4e86c3fa44 (patch) | |
tree | b5e1a48797824a460af5ce61784671f7205f1a7d /util/coding.cc | |
parent | dd0d562b4d4fbd07db6a44f9e221f8d368fee8e4 (diff) | |
download | leveldb-946e5b5a4ce7980917b22a408f090a4e86c3fa44.tar.gz |
Update to leveldb 1.6v1.6
Highlights
----------
Mmap at most 1000 files on Posix to improve performance for large databases.
Support for more architectures (thanks to Alexander K.)
Building and porting
--------------------
HP/UX support (issue 126)
AtomicPointer for ia64 (issue 123)
Sparc v9 support (issue 124)
Atomic ops for powerpc
Use -fno-builtin-memcmp only when using g++
Simplify IOS build rules (issue 114)
Use CXXFLAGS instead of CFLAGS when invoking C++ compiler (issue 118)
Fix snappy shared library problem (issue 94)
Fix shared library installation path regression
Endian-ness detection tweak for FreeBSD
Bug fixes
---------
Stop ignoring FLAGS_open_files in db_bench
Make bloom test behavior agnostic to endian-ness
Performance
-----------
Limit number of mmapped files to 1000 to improve perf for large dbs
Do not delay for 1 second on shutdown path (issue 125)
Misc
----
Make InMemoryEnv return a no-op logger
C binding now has a wrapper for free (issue 117)
Add thread-safety annotations
Added an in-process lock table (issue 120)
Make RandomAccessFile and SequentialFile non-copyable
Diffstat (limited to 'util/coding.cc')
-rw-r--r-- | util/coding.cc | 40 |
1 files changed, 20 insertions, 20 deletions
diff --git a/util/coding.cc b/util/coding.cc index dbd7a65..21e3186 100644 --- a/util/coding.cc +++ b/util/coding.cc @@ -7,29 +7,29 @@ namespace leveldb { void EncodeFixed32(char* buf, uint32_t value) { -#if __BYTE_ORDER == __LITTLE_ENDIAN - memcpy(buf, &value, sizeof(value)); -#else - buf[0] = value & 0xff; - buf[1] = (value >> 8) & 0xff; - buf[2] = (value >> 16) & 0xff; - buf[3] = (value >> 24) & 0xff; -#endif + if (port::kLittleEndian) { + memcpy(buf, &value, sizeof(value)); + } else { + buf[0] = value & 0xff; + buf[1] = (value >> 8) & 0xff; + buf[2] = (value >> 16) & 0xff; + buf[3] = (value >> 24) & 0xff; + } } void EncodeFixed64(char* buf, uint64_t value) { -#if __BYTE_ORDER == __LITTLE_ENDIAN - memcpy(buf, &value, sizeof(value)); -#else - buf[0] = value & 0xff; - buf[1] = (value >> 8) & 0xff; - buf[2] = (value >> 16) & 0xff; - buf[3] = (value >> 24) & 0xff; - buf[4] = (value >> 32) & 0xff; - buf[5] = (value >> 40) & 0xff; - buf[6] = (value >> 48) & 0xff; - buf[7] = (value >> 56) & 0xff; -#endif + if (port::kLittleEndian) { + memcpy(buf, &value, sizeof(value)); + } else { + buf[0] = value & 0xff; + buf[1] = (value >> 8) & 0xff; + buf[2] = (value >> 16) & 0xff; + buf[3] = (value >> 24) & 0xff; + buf[4] = (value >> 32) & 0xff; + buf[5] = (value >> 40) & 0xff; + buf[6] = (value >> 48) & 0xff; + buf[7] = (value >> 56) & 0xff; + } } void PutFixed32(std::string* dst, uint32_t value) { |