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# Copyright 2023 Google Inc. All Rights Reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions are
# met:
#
# * Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# * Redistributions in binary form must reproduce the above
# copyright notice, this list of conditions and the following disclaimer
# in the documentation and/or other materials provided with the
# distribution.
# * Neither the name of Google Inc. nor the names of its
# contributors may be used to endorse or promote products derived from
# this software without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
# A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
# OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
# OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
package(default_visibility = ["//visibility:public"])
licenses(["notice"])
SNAPPY_VERSION = (1, 1, 10)
config_setting(
name = "windows",
constraint_values = ["@platforms//os:windows"],
)
cc_library(
name = "config",
hdrs = ["config.h"],
defines = ["HAVE_CONFIG_H"]
)
cc_library(
name = "snappy-stubs-public",
hdrs = [":snappy-stubs-public.h"],
)
cc_library(
name = "snappy-stubs-internal",
srcs = ["snappy-stubs-internal.cc"],
hdrs = ["snappy-stubs-internal.h"],
deps = [
":config",
":snappy-stubs-public",
],
)
cc_library(
name = "snappy",
srcs = [
"snappy.cc",
"snappy-internal.h",
"snappy-sinksource.cc",
],
hdrs = [
"snappy.h",
"snappy-sinksource.h",
],
copts = select({
":windows": [],
"//conditions:default": [
"-Wno-sign-compare",
]}),
deps = [
":config",
":snappy-stubs-internal",
":snappy-stubs-public",
],
)
cc_library(
name = "snappy-c",
srcs = ["snappy-c.cc"],
hdrs = ["snappy-c.h"],
deps = [":snappy"],
)
filegroup(
name = "testdata",
srcs = glob(["testdata/*"]),
)
cc_library(
name = "snappy-test",
testonly = True,
srcs = [
"snappy-test.cc",
"snappy_test_data.cc",
],
hdrs = [
"snappy-test.h",
"snappy_test_data.h",
],
deps = [":snappy-stubs-internal"],
)
cc_test(
name = "snappy_benchmark",
srcs = ["snappy_benchmark.cc"],
data = [":testdata"],
deps = [
":snappy",
":snappy-test",
"//third_party/benchmark:benchmark_main",
],
)
cc_test(
name = "snappy_unittest",
srcs = [
"snappy_unittest.cc",
],
data = [":testdata"],
deps = [
":snappy",
":snappy-test",
"//third_party/googletest:gtest_main",
],
)
# Generate a config.h similar to what cmake would produce.
genrule(
name = "config_h",
outs = ["config.h"],
cmd = """cat <<EOF >$@
#define HAVE_STDDEF_H 1
#define HAVE_STDINT_H 1
#ifdef __has_builtin
# if !defined(HAVE_BUILTIN_EXPECT) && __has_builtin(__builtin_expect)
# define HAVE_BUILTIN_EXPECT 1
# endif
# if !defined(HAVE_BUILTIN_CTZ) && __has_builtin(__builtin_ctzll)
# define HAVE_BUILTIN_CTZ 1
# endif
# if !defined(HAVE_BUILTIN_PREFETCH) && __has_builtin(__builtin_prefetech)
# define HAVE_BUILTIN_PREFETCH 1
# endif
#elif defined(__GNUC__) && (__GNUC__ > 3 || __GNUC__ == 3 && __GNUC_MINOR__ >= 4)
# ifndef HAVE_BUILTIN_EXPECT
# define HAVE_BUILTIN_EXPECT 1
# endif
# ifndef HAVE_BUILTIN_CTZ
# define HAVE_BUILTIN_CTZ 1
# endif
# ifndef HAVE_BUILTIN_PREFETCH
# define HAVE_BUILTIN_PREFETCH 1
# endif
#endif
#if defined(_WIN32) && !defined(HAVE_WINDOWS_H)
#define HAVE_WINDOWS_H 1
#endif
#ifdef __has_include
# if !defined(HAVE_BYTESWAP_H) && __has_include(<byteswap.h>)
# define HAVE_BYTESWAP_H 1
# endif
# if !defined(HAVE_UNISTD_H) && __has_include(<unistd.h>)
# define HAVE_UNISTD_H 1
# endif
# if !defined(HAVE_SYS_ENDIAN_H) && __has_include(<sys/endian.h>)
# define HAVE_SYS_ENDIAN_H 1
# endif
# if !defined(HAVE_SYS_MMAN_H) && __has_include(<sys/mman.h>)
# define HAVE_SYS_MMAN_H 1
# endif
# if !defined(HAVE_SYS_UIO_H) && __has_include(<sys/uio.h>)
# define HAVE_SYS_UIO_H 1
# endif
# if !defined(HAVE_SYS_TIME_H) && __has_include(<sys/time.h>)
# define HAVE_SYS_TIME_H 1
# endif
#endif
#ifndef SNAPPY_IS_BIG_ENDIAN
# ifdef __s390x__
# define SNAPPY_IS_BIG_ENDIAN 1
# elif defined(__BYTE_ORDER__) && defined(__ORDER_BIG_ENDIAN__) && __BYTE_ORDER__ == __ORDER_BIG_ENDIAN__
# define SNAPPY_IS_BIG_ENDIAN 1
# endif
#endif
EOF
""",
)
genrule(
name = "snappy_stubs_public_h",
srcs = ["snappy-stubs-public.h.in"],
outs = ["snappy-stubs-public.h"],
# Assume sys/uio.h is available on non-Windows.
# Set the version numbers.
cmd = ("""sed -e 's/$${HAVE_SYS_UIO_H_01}/!_WIN32/g' \
-e 's/$${PROJECT_VERSION_MAJOR}/%d/g' \
-e 's/$${PROJECT_VERSION_MINOR}/%d/g' \
-e 's/$${PROJECT_VERSION_PATCH}/%d/g' \
$< >$@""" % SNAPPY_VERSION),
)
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