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      1 # Copyright 2017 gRPC authors.
      2 #
      3 # Licensed under the Apache License, Version 2.0 (the "License");
      4 # you may not use this file except in compliance with the License.
      5 # You may obtain a copy of the License at
      6 #
      7 #     http://www.apache.org/licenses/LICENSE-2.0
      8 #
      9 # Unless required by applicable law or agreed to in writing, software
     10 # distributed under the License is distributed on an "AS IS" BASIS,
     11 # WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
     12 # See the License for the specific language governing permissions and
     13 # limitations under the License.
     14 
     15 if("${gRPC_BENCHMARK_PROVIDER}" STREQUAL "module")
     16   if(NOT BENCHMARK_ROOT_DIR)
     17     set(BENCHMARK_ROOT_DIR ${CMAKE_CURRENT_SOURCE_DIR}/third_party/benchmark)
     18   endif()
     19   if(EXISTS "${BENCHMARK_ROOT_DIR}/CMakeLists.txt")
     20       add_subdirectory(${BENCHMARK_ROOT_DIR} third_party/benchmark)
     21       if(TARGET benchmark)
     22           set(_gRPC_BENCHMARK_LIBRARIES benchmark)
     23           set(_gRPC_BENCHMARK_INCLUDE_DIR "${BENCHMARK_ROOT_DIR}/include")
     24       endif()
     25   else()
     26       message(WARNING "gRPC_BENCHMARK_PROVIDER is \"module\" but BENCHMARK_ROOT_DIR is wrong")
     27   endif()
     28 elseif("${gRPC_BENCHMARK_PROVIDER}" STREQUAL "package")
     29   # Use "CONFIG" as there is no built-in cmake module for benchmark.
     30   find_package(benchmark REQUIRED CONFIG)
     31   if(TARGET benchmark::benchmark)
     32     set(_gRPC_BENCHMARK_LIBRARIES benchmark::benchmark)
     33     # extract the include dir from target's properties
     34     get_target_property(_gRPC_BENCHMARK_INCLUDE_DIR benchmark::benchmark INTERFACE_INCLUDE_DIRECTORIES)
     35   endif()
     36   set(_gRPC_FIND_BENCHMARK "if(NOT benchmark_FOUND)\n  find_package(benchmark CONFIG)\nendif()")
     37 endif()
     38