#!/usr/bin/env python3 # Copyright 2016 Google Inc. All Rights Reserved. # # Licensed under the Apache License, Version 2.0 (the "License"); # you may not use this file except in compliance with the License. # You may obtain a copy of the License at # # http://www.apache.org/licenses/LICENSE-2.0 # # Unless required by applicable law or agreed to in writing, software # distributed under the License is distributed on an "AS-IS" BASIS, # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. # See the License for the specific language governing permissions and # limitations under the License. import random import os import fruit_source_generator import boost_di_source_generator import no_di_library_source_generator from makefile_generator import generate_makefile import argparse import networkx as nx def generate_injection_graph(num_components_with_no_deps: int, num_components_with_deps: int, num_deps: int): injection_graph = nx.DiGraph() num_used_ids = 0 is_toplevel = [True for i in range(0, num_components_with_no_deps + num_components_with_deps)] toplevel_components = set() for i in range(0, num_components_with_no_deps): id = num_used_ids num_used_ids += 1 toplevel_components.add(id) # Then the rest have num_deps deps, chosen (pseudo-)randomly from the previous components. # The last few components depend more components with >1 deps, so that the last component transitively depends on # everything. for i in range(0, num_components_with_deps): deps = set() if len(toplevel_components) > (num_components_with_deps - 1 - i) * (num_deps - 1): # We need at least 1 dep with deps, otherwise the last few components will not be enough # to tie together all components. num_deps_with_deps = len(toplevel_components) - (num_components_with_deps - 1 - i) * (num_deps - 1) deps |= set(random.sample(toplevel_components, num_deps_with_deps)) # Add other deps to get to the desired num_deps. deps |= set(random.sample(range(0, num_components_with_no_deps + i), num_deps - len(deps))) toplevel_components -= deps for dep in deps: is_toplevel[dep] = False component_id = num_used_ids toplevel_components |= {component_id} num_used_ids += 1 deps_list = list(deps) random.shuffle(deps_list) for dep in deps_list: injection_graph.add_edge(component_id, dep) assert len(toplevel_components) == 1, toplevel_components toplevel_component = num_used_ids - 1 assert is_toplevel[toplevel_component] return injection_graph def generate_benchmark( di_library: str, compiler: str, cxx_std: str, output_dir: str, num_components_with_no_deps: int, num_components_with_deps: int, num_deps: int, generate_runtime_bench_code: bool, use_exceptions: bool=True, use_rtti: bool=True, fruit_build_dir: str=None, fruit_sources_dir: str=None, boost_di_sources_dir: str=None, generate_debuginfo: bool=False, use_new_delete: bool=False, use_interfaces: bool=False, use_normalized_component: bool=False): """Generates a sample codebase using the specified DI library, meant for benchmarking. :param boost_di_sources_dir: this is only used if di_library=='boost_di', it can be None otherwise. """ if num_components_with_no_deps < num_deps: raise Exception( "Too few components with no deps. num_components_with_no_deps=%s but num_deps=%s." % (num_components_with_no_deps, num_deps)) if num_deps < 2: raise Exception("num_deps should be at least 2.") # This is a constant so that we always generate the same file (=> benchmark more repeatable). random.seed(42) injection_graph = generate_injection_graph(num_components_with_no_deps=num_components_with_no_deps, num_components_with_deps=num_components_with_deps, num_deps=num_deps) if di_library == 'fruit': file_content_by_name = fruit_source_generator.generate_files(injection_graph, generate_runtime_bench_code) include_dirs = [fruit_build_dir + '/include', fruit_sources_dir + '/include'] library_dirs = [fruit_build_dir + '/src'] link_libraries = ['fruit'] elif di_library == 'boost_di': file_content_by_name = boost_di_source_generator.generate_files(injection_graph, generate_runtime_bench_code) include_dirs = [boost_di_sources_dir + '/include', boost_di_sources_dir + '/extension/include'] library_dirs = [] link_libraries = [] elif di_library == 'none': file_content_by_name = no_di_library_source_generator.generate_files(injection_graph, use_new_delete, use_interfaces, generate_runtime_bench_code) include_dirs = [] library_dirs = [] link_libraries = [] else: raise Exception('Unrecognized di_library: %s' % di_library) include_flags = ' '.join(['-I%s' % include_dir for include_dir in include_dirs]) library_dirs_flags = ' '.join(['-L%s' % library_dir for library_dir in library_dirs]) rpath_flags = ' '.join(['-Wl,-rpath,%s' % library_dir for library_dir in library_dirs]) link_libraries_flags = ' '.join(['-l%s' % library for library in link_libraries]) other_compile_flags = [] if generate_debuginfo: other_compile_flags.append('-g') if not use_exceptions: other_compile_flags.append('-fno-exceptions') if not use_rtti: other_compile_flags.append('-fno-rtti') compile_command = '%s -std=%s -MMD -MP -O2 -W -Wall -DNDEBUG -ftemplate-depth=10000 %s %s' % (compiler, cxx_std, include_flags, ' '.join(other_compile_flags)) link_command = '%s -std=%s -O2 -W -Wall %s %s' % (compiler, cxx_std, rpath_flags, library_dirs_flags) # GCC requires passing the -lfruit flag *after* all object files to be linked for some reason. link_command_suffix = link_libraries_flags cpp_files = [file_name for file_name in file_content_by_name.keys() if file_name.endswith('.cpp')] file_content_by_name['Makefile'] = generate_makefile(cpp_files, 'main', compile_command, link_command, link_command_suffix) os.makedirs(output_dir, exist_ok=True) for file_name, file_content in file_content_by_name.items(): with open('%s/%s' % (output_dir, file_name), 'w') as file: file.write(file_content) return file_content_by_name.keys() def main(): parser = argparse.ArgumentParser(description='Generates source files and a build script for benchmarks.') parser.add_argument('--di-library', default='fruit', help='DI library to use. One of {fruit, boost_di, none}. (default: fruit)') parser.add_argument('--compiler', help='Compiler to use') parser.add_argument('--fruit-sources-dir', help='Path to the fruit sources (only used when di_library==\'fruit\')') parser.add_argument('--fruit-build-dir', help='Path to the fruit build dir (only used with --di_library=\'fruit\')') parser.add_argument('--boost-di-sources-dir', help='Path to the Boost.DI sources (only used with --di-library==\'boost_di\')') parser.add_argument('--num-components-with-no-deps', default=10, help='Number of components with no deps that will be generated') parser.add_argument('--num-components-with-deps', default=90, help='Number of components with deps that will be generated') parser.add_argument('--num-deps', default=10, help='Number of deps in each component with deps that will be generated') parser.add_argument('--output-dir', help='Output directory for generated files') parser.add_argument('--cxx-std', default='c++11', help='Version of the C++ standard to use. Typically one of \'c++11\' and \'c++14\'. (default: \'c++11\')') parser.add_argument('--use-new-delete', default='false', help='Set this to \'true\' to use new/delete. Only relevant when --di_library=none.') parser.add_argument('--use-interfaces', default='false', help='Set this to \'true\' to use interfaces. Only relevant when --di_library=none.') parser.add_argument('--use-normalized-component', default='false', help='Set this to \'true\' to create a NormalizedComponent and create the injector from that. Only relevant when --di_library=fruit and --generate-runtime-bench-code=false.') parser.add_argument('--generate-runtime-bench-code', default='true', help='Set this to \'false\' for compile benchmarks.') parser.add_argument('--generate-debuginfo', default='false', help='Set this to \'true\' to generate debugging information (-g).') parser.add_argument('--use-exceptions', default='true', help='Set this to \'false\' to disable exceptions.') parser.add_argument('--use-rtti', default='true', help='Set this to \'false\' to disable RTTI.') args = parser.parse_args() if args.compiler is None: raise Exception('--compiler is required.') if args.di_library == 'fruit': if args.fruit_sources_dir is None: raise Exception('--fruit-sources-dir is required with --di-library=\'fruit\'.') if args.fruit_build_dir is None: raise Exception('--fruit-build-dir is required with --di-library=\'fruit\'.') elif args.di_library == 'boost_di': if args.boost_di_sources_dir is None: raise Exception('--boost-di-sources-dir is required with --di-library=\'boost_di\'.') elif args.di_library == 'none': pass else: raise Exception('Unrecognized --di-library: \'%s\'. Allowed values are %s' % (args.di_library, {'fruit', 'boost_di', 'none'})) num_components_with_deps = int(args.num_components_with_deps) num_components_with_no_deps = int(args.num_components_with_no_deps) num_deps = int(args.num_deps) if args.output_dir is None: raise Exception("output_dir must be specified.") generate_benchmark( di_library=args.di_library, fruit_sources_dir=args.fruit_sources_dir, boost_di_sources_dir=args.boost_di_sources_dir, output_dir=args.output_dir, compiler=args.compiler, cxx_std=args.cxx_std, num_components_with_deps=num_components_with_deps, num_components_with_no_deps=num_components_with_no_deps, fruit_build_dir=args.fruit_build_dir, num_deps=num_deps, generate_debuginfo=(args.generate_debuginfo == 'true'), use_new_delete=(args.use_new_delete == 'true'), use_interfaces=(args.use_interfaces == 'true'), use_normalized_component=(args.use_normalized_component == 'true'), generate_runtime_bench_code=(args.generate_runtime_bench_code == 'true'), use_exceptions=(args.use_exceptions == 'true'), use_rtti=(args.use_rtti == 'true')) if __name__ == "__main__": main()