summaryrefslogtreecommitdiff
diff options
context:
space:
mode:
authorCarlos Martín Nieto <cmn@elego.de>2012-10-23 19:30:04 +0200
committerCarlos Martín Nieto <cmn@elego.de>2012-10-23 20:30:16 +0200
commit7205a4d94cdead95c397505292a31b4854039825 (patch)
tree8a82f69b1a26efb57577f451ccbf9771a70a0f47
parent4c47a8bcfe03c42096b74d4af06ab95fb95fd211 (diff)
downloadlibgit2-7205a4d94cdead95c397505292a31b4854039825.tar.gz
Use libcrypto's SHA-1 implementation when linking to it
libcryto's SHA-1 implementation is measurably better than the one that ships with the library. If we link to it for HTTPS support already, use that implementation instead. Testing on a ~600MB of the linux repository, this reduces indexing time by 40% and removes the hashing from the top spot in the perf output.
-rw-r--r--CMakeLists.txt6
-rw-r--r--src/sha1.h7
-rw-r--r--src/sha1/sha1.c (renamed from src/sha1.c)0
3 files changed, 11 insertions, 2 deletions
diff --git a/CMakeLists.txt b/CMakeLists.txt
index 52929062d..434fba908 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -40,8 +40,10 @@ ENDIF()
IF (SHA1_TYPE STREQUAL "ppc")
ADD_DEFINITIONS(-DPPC_SHA1)
FILE(GLOB SRC_SHA1 src/ppc/*.c src/ppc/*.S)
+ELSEIF (OPENSSL_FOUND) # libcrypto's implementation is faster than ours
+ ADD_DEFINITIONS(-DOPENSSL_SHA)
ELSE ()
- SET (SRC_SHA1)
+ FILE(GLOB SRC_SHA1 src/sha1/*.c)
ENDIF()
IF (NOT WIN32)
@@ -198,7 +200,7 @@ IF (BUILD_CLAR)
DEPENDS ${CLAR_PATH}/clar ${SRC_TEST}
WORKING_DIRECTORY ${CLAR_PATH}
)
- ADD_EXECUTABLE(libgit2_clar ${SRC} ${CLAR_PATH}/clar_main.c ${SRC_TEST} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX})
+ ADD_EXECUTABLE(libgit2_clar ${SRC} ${CLAR_PATH}/clar_main.c ${SRC_TEST} ${SRC_ZLIB} ${SRC_HTTP} ${SRC_REGEX} ${SRC_SHA1})
TARGET_LINK_LIBRARIES(libgit2_clar ${CMAKE_THREAD_LIBS_INIT} ${SSL_LIBRARIES})
IF (MSVC)
diff --git a/src/sha1.h b/src/sha1.h
index f0a16f2cf..41e8abad6 100644
--- a/src/sha1.h
+++ b/src/sha1.h
@@ -8,12 +8,17 @@
#ifndef INCLUDE_sha1_h__
#define INCLUDE_sha1_h__
+#ifdef OPENSSL_SHA
+# include <openssl/sha.h>
+
+#else
typedef struct {
unsigned long long size;
unsigned int H[5];
unsigned int W[16];
} blk_SHA_CTX;
+
void git__blk_SHA1_Init(blk_SHA_CTX *ctx);
void git__blk_SHA1_Update(blk_SHA_CTX *ctx, const void *dataIn, size_t len);
void git__blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
@@ -23,4 +28,6 @@ void git__blk_SHA1_Final(unsigned char hashout[20], blk_SHA_CTX *ctx);
#define SHA1_Update git__blk_SHA1_Update
#define SHA1_Final git__blk_SHA1_Final
+#endif // OPENSSL_SHA
+
#endif
diff --git a/src/sha1.c b/src/sha1/sha1.c
index 8aaedeb8f..8aaedeb8f 100644
--- a/src/sha1.c
+++ b/src/sha1/sha1.c