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f0eb9b202f
After some benchmarking, it turns out that std::vector<uint8_t> is about 160 times slower than malloc(). malloc() is faster than "new uint8_t[]" too. Get rid of std:;vector<uint8_t> and replace it with a lightweight wrapper around malloc(), free(), and memcpy(). ByteVector has helpful methods for the common case of moving data to and from ioctl calls that use a fixed-length header placed contiguously with a variable-length input/output buffer. Data bytes are shared between copied ByteVector objects, allowing a large single buffer to be cheaply chopped up into smaller objects without memory copies. ByteVector implements the more useful parts of the std::vector API, so it can replace std::vector objects without needing an awkward adaptor class like Spanner. Signed-off-by: Zygo Blaxell <bees@furryterror.org>
53 lines
1014 B
Makefile
53 lines
1014 B
Makefile
TAG ?= $(shell git describe --always --dirty || echo UNKNOWN)
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default: libcrucible.a
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%.a: Makefile
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CRUCIBLE_OBJS = \
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bytevector.o \
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chatter.o \
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city.o \
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cleanup.o \
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crc64.o \
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error.o \
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extentwalker.o \
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fd.o \
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fs.o \
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ntoa.o \
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path.o \
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process.o \
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string.o \
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task.o \
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time.o \
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include ../makeflags
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-include ../localconf
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include ../Defines.mk
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BEES_LDFLAGS = $(LDFLAGS)
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configure.h: configure.h.in
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$(TEMPLATE_COMPILER)
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.depends:
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mkdir -p $@
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.depends/%.dep: %.cc configure.h Makefile | .depends
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$(CXX) $(BEES_CXXFLAGS) -M -MF $@ -MT $(<:.cc=.o) $<
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depends.mk: $(CRUCIBLE_OBJS:%.o=.depends/%.dep)
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cat $^ > $@.new
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mv -f $@.new $@
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.version.cc: configure.h Makefile ../makeflags $(CRUCIBLE_OBJS:.o=.cc) ../include/crucible/*.h
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echo "namespace crucible { const char *VERSION = \"$(TAG)\"; }" > $@.new
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if ! cmp "$@.new" "$@"; then mv -fv $@.new $@; fi
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include depends.mk
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%.o: %.cc ../makeflags
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$(CXX) $(BEES_CXXFLAGS) -o $@ -c $<
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libcrucible.a: $(CRUCIBLE_OBJS) .version.o
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$(AR) rcs $@ $^
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