507f5aac73
Summary:
Leveldb code already calculates checksums for each block. There
is no need to generate checksums inside zlib. This patch switches-off checksum generation/checking in zlib library.
(The Inno support for zlib uses windowsBits=14 as well.)
pfabricator marks this file as binary. But here is the diff
diff --git a/port/port_posix.h b/port/port_posix.h
index 86a0927..db4e0b8 100644
--- a/port/port_posix.h
+++ b/port/port_posix.h
@@ -163,7 +163,7 @@ inline bool Snappy_Uncompress(const char* input, size_t length,
}
inline bool Zlib_Compress(const char* input, size_t length,
- ::std::string* output, int windowBits = 15, int level = -1,
+ ::std::string* output, int windowBits = -14, int level = -1,
int strategy = 0) {
#ifdef ZLIB
// The memLevel parameter specifies how much memory should be allocated for
@@ -223,7 +223,7 @@ inline bool Zlib_Compress(const char* input, size_t length,
}
inline char* Zlib_Uncompress(const char* input_data, size_t input_length,
- int* decompress_size, int windowBits = 15) {
+ int* decompress_size, int windowBits = -14) {
#ifdef ZLIB
z_stream _stream;
memset(&_stream, 0, sizeof(z_stream));
Test Plan: run db_bench with zlib compression.
Reviewers: heyongqiang, MarkCallaghan
Reviewed By: heyongqiang
Differential Revision: https://reviews.facebook.net/D6105
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||
|---|---|---|
| .. | ||
| win | ||
| atomic_pointer.h | ||
| port_example.h | ||
| port_posix.cc | ||
| port_posix.h | ||
| port.h | ||
| README | ||
This directory contains interfaces and implementations that isolate the rest of the package from platform details. Code in the rest of the package includes "port.h" from this directory. "port.h" in turn includes a platform specific "port_<platform>.h" file that provides the platform specific implementation. See port_posix.h for an example of what must be provided in a platform specific header file.