Nicolas Pitre <nico@xxxxxxxxxxx> writes:
> Simply mentioning in the 1.7.0
> release notes that THREADED_DELTA_SEARCH is no more should be fine.
Ok; here is what I'll queue.
Thanks, both.
-- >8 --
From: Dan McGee <dpmcgee@xxxxxxxxx>
Date: Fri, 29 Jan 2010 19:22:19 -0600
Subject: [PATCH] Make NO_PTHREADS the sole thread configuration variable
When the first piece of threaded code was introduced in commit 8ecce684, it
came with its own THREADED_DELTA_SEARCH Makefile option. Since this time,
more threaded code has come into the codebase and a NO_PTHREADS option has
also been added. Get rid of the original option as the newer, more generic
option covers everything we need.
Signed-off-by: Dan McGee <dpmcgee@xxxxxxxxx>
Signed-off-by: Junio C Hamano <gitster@xxxxxxxxx>
---
Documentation/RelNotes-1.7.0.txt | 3 +++
Makefile | 24 ++----------------------
builtin-pack-objects.c | 12 ++++++------
config.mak.in | 1 -
configure.ac | 9 ++-------
5 files changed, 13 insertions(+), 36 deletions(-)
diff --git a/Documentation/RelNotes-1.7.0.txt b/Documentation/RelNotes-1.7.0.txt
index 997b026..45ac906 100644
--- a/Documentation/RelNotes-1.7.0.txt
+++ b/Documentation/RelNotes-1.7.0.txt
@@ -175,6 +175,9 @@ Updates since v1.6.6
* Many more commands are now built-in.
+ * THREADED_DELTA_SEARCH is no more. If you build with threads, delta
+ compression will always take advantage of it.
+
Fixes since v1.6.6
------------------
diff --git a/Makefile b/Makefile
index af08c8f..83383c3 100644
--- a/Makefile
+++ b/Makefile
@@ -180,9 +180,6 @@ all::
# If not set it defaults to the bare 'wish'. If it is set to the empty
# string then NO_TCLTK will be forced (this is used by configure script).
#
-# Define THREADED_DELTA_SEARCH if you have pthreads and wish to exploit
-# parallel delta searching when packing objects.
-#
# Define INTERNAL_QSORT to use Git's implementation of qsort(), which
# is a simplified version of the merge sort used in glibc. This is
# recommended if Git triggers O(n^2) behavior in your platform's qsort().
@@ -722,12 +719,10 @@ EXTLIBS =
ifeq ($(uname_S),Linux)
NO_STRLCPY = YesPlease
NO_MKSTEMPS = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
endif
ifeq ($(uname_S),GNU/kFreeBSD)
NO_STRLCPY = YesPlease
NO_MKSTEMPS = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
endif
ifeq ($(uname_S),UnixWare)
CC = cc
@@ -781,7 +776,6 @@ ifeq ($(uname_S),Darwin)
NO_STRLCPY = YesPlease
endif
NO_MEMMEM = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
USE_ST_TIMESPEC = YesPlease
endif
ifeq ($(uname_S),SunOS)
@@ -794,7 +788,6 @@ ifeq ($(uname_S),SunOS)
NO_MKDTEMP = YesPlease
NO_MKSTEMPS = YesPlease
NO_REGEX = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
ifeq ($(uname_R),5.7)
NEEDS_RESOLV = YesPlease
NO_IPV6 = YesPlease
@@ -850,7 +843,6 @@ ifeq ($(uname_S),FreeBSD)
BASIC_LDFLAGS += -L/usr/local/lib
DIR_HAS_BSD_GROUP_SEMANTICS = YesPlease
USE_ST_TIMESPEC = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
ifeq ($(shell expr "$(uname_R)" : '4\.'),2)
PTHREAD_LIBS = -pthread
NO_UINTMAX_T = YesPlease
@@ -864,7 +856,6 @@ ifeq ($(uname_S),OpenBSD)
NEEDS_LIBICONV = YesPlease
BASIC_CFLAGS += -I/usr/local/include
BASIC_LDFLAGS += -L/usr/local/lib
- THREADED_DELTA_SEARCH = YesPlease
endif
ifeq ($(uname_S),NetBSD)
ifeq ($(shell expr "$(uname_R)" : '[01]\.'),2)
@@ -872,7 +863,6 @@ ifeq ($(uname_S),NetBSD)
endif
BASIC_CFLAGS += -I/usr/pkg/include
BASIC_LDFLAGS += -L/usr/pkg/lib $(CC_LD_DYNPATH)/usr/pkg/lib
- THREADED_DELTA_SEARCH = YesPlease
USE_ST_TIMESPEC = YesPlease
NO_MKSTEMPS = YesPlease
endif
@@ -887,9 +877,7 @@ ifeq ($(uname_S),AIX)
INTERNAL_QSORT = UnfortunatelyYes
NEEDS_LIBICONV=YesPlease
BASIC_CFLAGS += -D_LARGE_FILES
- ifneq ($(shell expr "$(uname_V)" : '[1234]'),1)
- THREADED_DELTA_SEARCH = YesPlease
- else
+ ifeq ($(shell expr "$(uname_V)" : '[1234]'),1)
NO_PTHREADS = YesPlease
endif
endif
@@ -915,7 +903,6 @@ ifeq ($(uname_S),IRIX)
SNPRINTF_RETURNS_BOGUS = YesPlease
SHELL_PATH = /usr/gnu/bin/bash
NEEDS_LIBGEN = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
endif
ifeq ($(uname_S),IRIX64)
NO_SETENV=YesPlease
@@ -934,7 +921,6 @@ ifeq ($(uname_S),IRIX64)
SNPRINTF_RETURNS_BOGUS = YesPlease
SHELL_PATH=/usr/gnu/bin/bash
NEEDS_LIBGEN = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
endif
ifeq ($(uname_S),HP-UX)
NO_IPV6=YesPlease
@@ -984,7 +970,6 @@ ifeq ($(uname_S),Windows)
NO_CURL = YesPlease
NO_PYTHON = YesPlease
BLK_SHA1 = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
CC = compat/vcbuild/scripts/clink.pl
AR = compat/vcbuild/scripts/lib.pl
@@ -1036,7 +1021,6 @@ ifneq (,$(findstring MINGW,$(uname_S)))
NO_REGEX = YesPlease
NO_PYTHON = YesPlease
BLK_SHA1 = YesPlease
- THREADED_DELTA_SEARCH = YesPlease
COMPAT_CFLAGS += -D__USE_MINGW_ACCESS -DNOGDI -Icompat -Icompat/fnmatch -Icompat/win32
COMPAT_CFLAGS += -DSTRIP_EXTENSION=\".exe\"
COMPAT_OBJS += compat/mingw.o compat/fnmatch/fnmatch.o compat/winansi.o \
@@ -1334,16 +1318,12 @@ ifdef RUNTIME_PREFIX
endif
ifdef NO_PTHREADS
- THREADED_DELTA_SEARCH =
BASIC_CFLAGS += -DNO_PTHREADS
else
EXTLIBS += $(PTHREAD_LIBS)
-endif
-
-ifdef THREADED_DELTA_SEARCH
- BASIC_CFLAGS += -DTHREADED_DELTA_SEARCH
LIB_OBJS += thread-utils.o
endif
+
ifdef DIR_HAS_BSD_GROUP_SEMANTICS
COMPAT_CFLAGS += -DDIR_HAS_BSD_GROUP_SEMANTICS
endif
diff --git a/builtin-pack-objects.c b/builtin-pack-objects.c
index b0887d7..4a41547 100644
--- a/builtin-pack-objects.c
+++ b/builtin-pack-objects.c
@@ -17,7 +17,7 @@
#include "progress.h"
#include "refs.h"
-#ifdef THREADED_DELTA_SEARCH
+#ifndef NO_PTHREADS
#include "thread-utils.h"
#include <pthread.h>
#endif
@@ -1255,7 +1255,7 @@ static int delta_cacheable(unsigned long src_size, unsigned long trg_size,
return 0;
}
-#ifdef THREADED_DELTA_SEARCH
+#ifndef NO_PTHREADS
static pthread_mutex_t read_mutex;
#define read_lock() pthread_mutex_lock(&read_mutex)
@@ -1380,7 +1380,7 @@ static int try_delta(struct unpacked *trg, struct unpacked *src,
/*
* Handle memory allocation outside of the cache
* accounting lock. Compiler will optimize the strangeness
- * away when THREADED_DELTA_SEARCH is not defined.
+ * away when NO_PTHREADS is defined.
*/
free(trg_entry->delta_data);
cache_lock();
@@ -1567,7 +1567,7 @@ static void find_deltas(struct object_entry **list, unsigned *list_size,
free(array);
}
-#ifdef THREADED_DELTA_SEARCH
+#ifndef NO_PTHREADS
/*
* The main thread waits on the condition that (at least) one of the workers
@@ -1899,7 +1899,7 @@ static int git_pack_config(const char *k, const char *v, void *cb)
if (delta_search_threads < 0)
die("invalid number of threads specified (%d)",
delta_search_threads);
-#ifndef THREADED_DELTA_SEARCH
+#ifdef NO_PTHREADS
if (delta_search_threads != 1)
warning("no threads support, ignoring %s", k);
#endif
@@ -2227,7 +2227,7 @@ int cmd_pack_objects(int argc, const char **argv, const char *prefix)
delta_search_threads = strtoul(arg+10, &end, 0);
if (!arg[10] || *end || delta_search_threads < 0)
usage(pack_usage);
-#ifndef THREADED_DELTA_SEARCH
+#ifdef NO_PTHREADS
if (delta_search_threads != 1)
warning("no threads support, "
"ignoring %s", arg);
diff --git a/config.mak.in b/config.mak.in
index 67b12f7..6008ac9 100644
--- a/config.mak.in
+++ b/config.mak.in
@@ -56,5 +56,4 @@ NO_DEFLATE_BOUND=@NO_DEFLATE_BOUND@
FREAD_READS_DIRECTORIES=@FREAD_READS_DIRECTORIES@
SNPRINTF_RETURNS_BOGUS=@SNPRINTF_RETURNS_BOGUS@
NO_PTHREADS=@NO_PTHREADS@
-THREADED_DELTA_SEARCH=@THREADED_DELTA_SEARCH@
PTHREAD_LIBS=@PTHREAD_LIBS@
diff --git a/configure.ac b/configure.ac
index 78345eb..229140e 100644
--- a/configure.ac
+++ b/configure.ac
@@ -762,10 +762,9 @@ AC_SUBST(NO_MKSTEMPS)
# Define NO_SYMLINK_HEAD if you never want .git/HEAD to be a symbolic link.
# Enable it on Windows. By default, symrefs are still used.
#
-# Define NO_PTHREADS if we do not have pthreads
+# Define NO_PTHREADS if we do not have pthreads.
#
-# Define PTHREAD_LIBS to the linker flag used for Pthread support and define
-# THREADED_DELTA_SEARCH if Pthreads are available.
+# Define PTHREAD_LIBS to the linker flag used for Pthread support.
AC_DEFUN([PTHREADTEST_SRC], [
#include <pthread.h>
@@ -782,7 +781,6 @@ dnl [[pthread_mutex_t test_mutex;]]
dnl )])
NO_PTHREADS=UnfortunatelyYes
-THREADED_DELTA_SEARCH=
PTHREAD_LIBS=
if test -n "$USER_NOPTHREAD"; then
@@ -798,7 +796,6 @@ elif test -z "$PTHREAD_CFLAGS"; then
[AC_MSG_RESULT([yes])
NO_PTHREADS=
PTHREAD_LIBS="$opt"
- THREADED_DELTA_SEARCH=YesPlease
break
],
[AC_MSG_RESULT([no])])
@@ -812,7 +809,6 @@ else
[AC_MSG_RESULT([yes])
NO_PTHREADS=
PTHREAD_LIBS="$PTHREAD_CFLAGS"
- THREADED_DELTA_SEARCH=YesPlease
],
[AC_MSG_RESULT([no])])
@@ -823,7 +819,6 @@ CFLAGS="$old_CFLAGS"
AC_SUBST(PTHREAD_LIBS)
AC_SUBST(NO_PTHREADS)
-AC_SUBST(THREADED_DELTA_SEARCH)
## Output files
AC_CONFIG_FILES(["${config_file}":"${config_in}":"${config_append}"])
--
1.7.0.rc1.141.gd3fd2
--
To unsubscribe from this list: send the line "unsubscribe git" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html