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# ################################################################
# Copyright (c) Meta Platforms, Inc. and affiliates.
# All rights reserved.
#
# This source code is licensed under both the BSD-style license (found in the
# LICENSE file in the root directory of this source tree) and the GPLv2 (found
# in the COPYING file in the root directory of this source tree).
# You may select, at your option, one of the above-listed licenses.
# ################################################################

LIBDIR =../lib
CPPFLAGS += -I$(LIBDIR)
LIB = $(LIBDIR)/libzstd.a


.PHONY: default
default: all

.PHONY: all
all: simple_compression simple_decompression \
	multiple_simple_compression\
	dictionary_compression dictionary_decompression \
	streaming_compression streaming_decompression \
	multiple_streaming_compression streaming_memory_usage

$(LIB) :
	$(MAKE) -C $(LIBDIR) libzstd.a

simple_compression.o: common.h
simple_compression : $(LIB)

simple_decompression.o: common.h
simple_decompression : $(LIB)

multiple_simple_compression.o: common.h
multiple_simple_compression : $(LIB)

dictionary_compression.o: common.h
dictionary_compression : $(LIB)

dictionary_decompression.o: common.h
dictionary_decompression : $(LIB)

streaming_compression.o: common.h
streaming_compression : $(LIB)

multiple_streaming_compression.o: common.h
multiple_streaming_compression : $(LIB)

streaming_decompression.o: common.h
streaming_decompression : $(LIB)

streaming_memory_usage.o: common.h
streaming_memory_usage : $(LIB)


.PHONY:clean
clean:
	@$(RM) core *.o tmp* result* *.zst \
        simple_compression simple_decompression \
        multiple_simple_compression \
        dictionary_compression dictionary_decompression \
        streaming_compression streaming_decompression \
        multiple_streaming_compression streaming_memory_usage
	@echo Cleaning completed

.PHONY:test
test: all
	cp README.md tmp
	cp Makefile tmp2
	@echo -- Simple compression tests
	./simple_compression tmp
	./simple_decompression tmp.zst
	./multiple_simple_compression *.c
	./streaming_decompression tmp.zst > /dev/null
	@echo -- Streaming memory usage
	./streaming_memory_usage
	@echo -- Streaming compression tests
	./streaming_compression tmp
	./streaming_decompression tmp.zst > /dev/null
	@echo -- Edge cases detection
	! ./streaming_decompression tmp    # invalid input, must fail
	! ./simple_decompression tmp       # invalid input, must fail
	touch tmpNull                      # create 0-size file
	./simple_compression tmpNull
	./simple_decompression tmpNull.zst # 0-size frame : must work
	@echo -- Multiple streaming tests
	./multiple_streaming_compression *.c
	@echo -- Dictionary compression tests
	./dictionary_compression tmp2 tmp README.md
	./dictionary_decompression tmp2.zst tmp.zst README.md
	$(RM) tmp* *.zst
	@echo tests completed