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65aafbcdb6
LevelDB is a fast key-value storage library written at Google that provides an ordered mapping from string keys to string values. Features: - Keys and values are arbitrary byte arrays. - Data is stored sorted by key. - Callers can provide a custom comparison function to override the sort order. - The basic operations are Put(key,value), Get(key), Delete(key). - Multiple changes can be made in one atomic batch. - Users can create a transient snapshot to get a consistent view of data. - Forward and backward iteration is supported over the data. - Data is automatically compressed using the Snappy compression library. - External activity (file system operations etc.) is relayed through a virtual interface so users can customize the operating system interactions. - Detailed documentation about how to use the library is included with the source code. Limitations: - This is not a SQL database. It does not have a relational data model, it does not support SQL queries, and it has no support for indexes. - Only a single process (possibly multi-threaded) can access a particular database at a time. - There is no client-server support builtin to the library. An application that needs such support will have to wrap their own server around the library. WWW: http://code.google.com/p/leveldb/
60 lines
2.1 KiB
Text
60 lines
2.1 KiB
Text
--- Makefile.orig 2011-10-24 18:02:13.000000000 +0800
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+++ Makefile 2011-10-27 18:37:46.857260892 +0800
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@@ -2,13 +2,13 @@
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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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-CC = g++
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+CC ?= g++
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#-----------------------------------------------
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# Uncomment exactly one of the lines labelled (A), (B), and (C) below
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# to switch between compilation modes.
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-OPT = -O2 -DNDEBUG # (A) Production use (optimized mode)
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+OPT ?= -O2 -DNDEBUG # (A) Production use (optimized mode)
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# OPT = -g2 # (B) Debug mode, w/ full line-level debugging symbols
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# OPT = -O2 -g2 -DNDEBUG # (C) Profiling mode: opt, but w/debugging symbols
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#-----------------------------------------------
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@@ -36,7 +36,7 @@
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GOOGLE_PERFTOOLS_LDFLAGS=
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endif
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-CFLAGS = -c -I. -I./include $(PORT_CFLAGS) $(PLATFORM_CFLAGS) $(OPT) $(SNAPPY_CFLAGS)
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+CFLAGS += -c -fPIC -I. -I./include $(PORT_CFLAGS) $(PLATFORM_CFLAGS) $(OPT) $(SNAPPY_CFLAGS)
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LDFLAGS=$(PLATFORM_LDFLAGS) $(SNAPPY_LDFLAGS) $(GOOGLE_PERFTOOLS_LDFLAGS)
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@@ -103,15 +103,19 @@
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BENCHMARKS = db_bench_sqlite3 db_bench_tree_db
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LIBRARY = libleveldb.a
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+SHARED_LIBRARY = libleveldb.so
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+SHARED_LIBRARY_VER = 0
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MEMENVLIBRARY = libmemenv.a
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-all: $(LIBRARY)
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+SHARED_LIBOBJECTS = $(LIBOBJECTS:.o=.so)
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+
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+all: $(LIBRARY) $(SHARED_LIBRARY)
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check: $(PROGRAMS) $(TESTS)
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for t in $(TESTS); do echo "***** Running $$t"; ./$$t || exit 1; done
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clean:
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- -rm -f $(PROGRAMS) $(BENCHMARKS) $(LIBRARY) $(MEMENVLIBRARY) */*.o */*/*.o ios-x86/*/*.o ios-arm/*/*.o
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+ -rm -f $(PROGRAMS) $(BENCHMARKS) $(LIBRARY) $(SHARED_LIBRARY) $(MEMENVLIBRARY) */*.o */*/*.o ios-x86/*/*.o ios-arm/*/*.o
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-rm -rf ios-x86/* ios-arm/*
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-rm build_config.mk
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@@ -119,6 +123,10 @@
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rm -f $@
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$(AR) -rs $@ $(LIBOBJECTS)
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+$(SHARED_LIBRARY): $(LIBOBJECTS)
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+ rm -f $@
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+ $(CC) -shared -Wl,-soname,$@.$(SHARED_LIBRARY_VER) -o $@.$(SHARED_LIBRARY_VER) $(LDFLAGS) $(LIBOBJECTS)
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+
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db_bench: db/db_bench.o $(LIBOBJECTS) $(TESTUTIL)
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$(CC) $(LDFLAGS) db/db_bench.o $(LIBOBJECTS) $(TESTUTIL) -o $@
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