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CMAKE_MINIMUM_REQUIRED(VERSION 3.5 FATAL_ERROR)
# ---[ Project
PROJECT(pthreadpool C CXX)
# ---[ Options.
SET(PTHREADPOOL_LIBRARY_TYPE "default" CACHE STRING "Type of library (shared, static, or default) to build")
SET_PROPERTY(CACHE PTHREADPOOL_LIBRARY_TYPE PROPERTY STRINGS default static shared)
OPTION(PTHREADPOOL_ALLOW_DEPRECATED_API "Enable deprecated API functions" ON)
SET(PTHREADPOOL_SYNC_PRIMITIVE "default" CACHE STRING "Synchronization primitive (condvar, futex, gcd, event, or default) for worker threads")
SET_PROPERTY(CACHE PTHREADPOOL_SYNC_PRIMITIVE PROPERTY STRINGS default condvar futex gcd event)
IF(CMAKE_SYSTEM_PROCESSOR MATCHES "^(i[3-6]86|AMD64|x86(_64)?)$")
OPTION(PTHREADPOOL_ENABLE_FASTPATH "Enable fast path using atomic decrement instead of atomic compare-and-swap" ON)
ELSE()
OPTION(PTHREADPOOL_ENABLE_FASTPATH "Enable fast path using atomic decrement instead of atomic compare-and-swap" OFF)
ENDIF()
IF("${CMAKE_SOURCE_DIR}" STREQUAL "${PROJECT_SOURCE_DIR}")
OPTION(PTHREADPOOL_BUILD_TESTS "Build pthreadpool unit tests" ON)
OPTION(PTHREADPOOL_BUILD_BENCHMARKS "Build pthreadpool micro-benchmarks" ON)
ELSE()
SET(PTHREADPOOL_BUILD_TESTS OFF CACHE BOOL "Build pthreadpool unit tests")
SET(PTHREADPOOL_BUILD_BENCHMARKS OFF CACHE BOOL "Build pthreadpool micro-benchmarks")
ENDIF()
# ---[ CMake options
INCLUDE(GNUInstallDirs)
IF(PTHREADPOOL_BUILD_TESTS)
ENABLE_TESTING()
ENDIF()
MACRO(PTHREADPOOL_TARGET_ENABLE_CXX11 target)
SET_TARGET_PROPERTIES(${target} PROPERTIES
CXX_STANDARD 11
CXX_EXTENSIONS NO)
ENDMACRO()
# ---[ Download deps
IF(NOT DEFINED FXDIV_SOURCE_DIR)
MESSAGE(STATUS "Downloading FXdiv to ${CMAKE_BINARY_DIR}/FXdiv-source (define FXDIV_SOURCE_DIR to avoid it)")
CONFIGURE_FILE(cmake/DownloadFXdiv.cmake "${CMAKE_BINARY_DIR}/FXdiv-download/CMakeLists.txt")
EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/FXdiv-download")
EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build .
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/FXdiv-download")
SET(FXDIV_SOURCE_DIR "${CMAKE_BINARY_DIR}/FXdiv-source" CACHE STRING "FXdiv source directory")
ENDIF()
IF(PTHREADPOOL_BUILD_TESTS AND NOT DEFINED GOOGLETEST_SOURCE_DIR)
MESSAGE(STATUS "Downloading Google Test to ${CMAKE_BINARY_DIR}/googletest-source (define GOOGLETEST_SOURCE_DIR to avoid it)")
CONFIGURE_FILE(cmake/DownloadGoogleTest.cmake "${CMAKE_BINARY_DIR}/googletest-download/CMakeLists.txt")
EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/googletest-download")
EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build .
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/googletest-download")
SET(GOOGLETEST_SOURCE_DIR "${CMAKE_BINARY_DIR}/googletest-source" CACHE STRING "Google Test source directory")
ENDIF()
IF(PTHREADPOOL_BUILD_BENCHMARKS AND NOT DEFINED GOOGLEBENCHMARK_SOURCE_DIR)
MESSAGE(STATUS "Downloading Google Benchmark to ${CMAKE_BINARY_DIR}/googlebenchmark-source (define GOOGLEBENCHMARK_SOURCE_DIR to avoid it)")
CONFIGURE_FILE(cmake/DownloadGoogleBenchmark.cmake "${CMAKE_BINARY_DIR}/googlebenchmark-download/CMakeLists.txt")
EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" -G "${CMAKE_GENERATOR}" .
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/googlebenchmark-download")
EXECUTE_PROCESS(COMMAND "${CMAKE_COMMAND}" --build .
WORKING_DIRECTORY "${CMAKE_BINARY_DIR}/googlebenchmark-download")
SET(GOOGLEBENCHMARK_SOURCE_DIR "${CMAKE_BINARY_DIR}/googlebenchmark-source" CACHE STRING "Google Benchmark source directory")
ENDIF()
# ---[ pthreadpool library
IF(PTHREADPOOL_ALLOW_DEPRECATED_API)
SET(PTHREADPOOL_SRCS src/legacy-api.c)
ENDIF()
IF(EMSCRIPTEN)
LIST(APPEND PTHREADPOOL_SRCS src/shim.c)
ELSE()
LIST(APPEND PTHREADPOOL_SRCS src/portable-api.c src/memory.c)
IF(APPLE AND (PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "default" OR PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "gcd"))
LIST(APPEND PTHREADPOOL_SRCS src/gcd.c)
ELSEIF(CMAKE_SYSTEM_NAME MATCHES "^(Windows|CYGWIN|MSYS)$" AND (PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "default" OR PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "event"))
LIST(APPEND PTHREADPOOL_SRCS src/windows.c)
ELSE()
LIST(APPEND PTHREADPOOL_SRCS src/pthreads.c)
ENDIF()
IF(PTHREADPOOL_ENABLE_FASTPATH)
LIST(APPEND PTHREADPOOL_SRCS src/fastpath.c)
ENDIF()
ENDIF()
ADD_LIBRARY(pthreadpool_interface INTERFACE)
TARGET_INCLUDE_DIRECTORIES(pthreadpool_interface INTERFACE include)
IF(NOT PTHREADPOOL_ALLOW_DEPRECATED_API)
TARGET_COMPILE_DEFINITIONS(pthreadpool_interface INTERFACE PTHREADPOOL_NO_DEPRECATED_API=1)
ENDIF()
INSTALL(FILES include/pthreadpool.h DESTINATION ${CMAKE_INSTALL_INCLUDEDIR})
IF(PTHREADPOOL_LIBRARY_TYPE STREQUAL "default")
ADD_LIBRARY(pthreadpool ${PTHREADPOOL_SRCS})
ELSEIF(PTHREADPOOL_LIBRARY_TYPE STREQUAL "shared")
ADD_LIBRARY(pthreadpool SHARED ${PTHREADPOOL_SRCS})
ELSEIF(PTHREADPOOL_LIBRARY_TYPE STREQUAL "static")
ADD_LIBRARY(pthreadpool STATIC ${PTHREADPOOL_SRCS})
ELSE()
MESSAGE(FATAL_ERROR "Unsupported library type ${PTHREADPOOL_LIBRARY_TYPE}")
ENDIF()
IF(PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "condvar")
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_FUTEX=0)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_GCD=0)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_EVENT=0)
ELSEIF(PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "futex")
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_FUTEX=1)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_GCD=0)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_EVENT=0)
ELSEIF(PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "gcd")
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_FUTEX=0)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_GCD=1)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_EVENT=0)
ELSEIF(PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "event")
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_FUTEX=0)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_GCD=0)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_EVENT=1)
ELSEIF(NOT PTHREADPOOL_SYNC_PRIMITIVE STREQUAL "default")
MESSAGE(FATAL_ERROR "Unsupported synchronization primitive ${PTHREADPOOL_SYNC_PRIMITIVE}")
ENDIF()
IF(PTHREADPOOL_ENABLE_FASTPATH)
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_FASTPATH=1)
ELSE()
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE PTHREADPOOL_USE_FASTPATH=0)
ENDIF()
SET_TARGET_PROPERTIES(pthreadpool PROPERTIES
C_STANDARD 11
C_EXTENSIONS NO)
TARGET_LINK_LIBRARIES(pthreadpool PUBLIC pthreadpool_interface)
TARGET_INCLUDE_DIRECTORIES(pthreadpool PRIVATE src)
IF(NOT CMAKE_SYSTEM_NAME STREQUAL "Emscripten")
SET(CMAKE_THREAD_PREFER_PTHREAD TRUE)
IF(NOT CMAKE_GENERATOR STREQUAL "Xcode")
FIND_PACKAGE(Threads REQUIRED)
ENDIF()
IF(CMAKE_USE_PTHREADS_INIT)
IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android")
TARGET_COMPILE_OPTIONS(pthreadpool PUBLIC -pthread)
ENDIF()
ENDIF()
TARGET_LINK_LIBRARIES(pthreadpool PUBLIC ${CMAKE_THREAD_LIBS_INIT})
ENDIF()
IF(CMAKE_SYSTEM_NAME STREQUAL "Linux")
TARGET_COMPILE_DEFINITIONS(pthreadpool PRIVATE _GNU_SOURCE=1)
ENDIF()
# ---[ Configure FXdiv
IF(NOT TARGET fxdiv)
SET(FXDIV_BUILD_TESTS OFF CACHE BOOL "")
SET(FXDIV_BUILD_BENCHMARKS OFF CACHE BOOL "")
ADD_SUBDIRECTORY(
"${FXDIV_SOURCE_DIR}"
"${CMAKE_BINARY_DIR}/FXdiv")
ENDIF()
TARGET_LINK_LIBRARIES(pthreadpool PRIVATE fxdiv)
INSTALL(TARGETS pthreadpool
LIBRARY DESTINATION ${CMAKE_INSTALL_LIBDIR}
ARCHIVE DESTINATION ${CMAKE_INSTALL_LIBDIR})
IF(PTHREADPOOL_BUILD_TESTS)
# ---[ Build google test
IF(NOT TARGET gtest)
SET(gtest_force_shared_crt ON CACHE BOOL "" FORCE)
ADD_SUBDIRECTORY(
"${GOOGLETEST_SOURCE_DIR}"
"${CMAKE_BINARY_DIR}/googletest")
ENDIF()
ADD_EXECUTABLE(pthreadpool-test test/pthreadpool.cc)
SET_TARGET_PROPERTIES(pthreadpool-test PROPERTIES
CXX_STANDARD 11
CXX_EXTENSIONS NO)
TARGET_LINK_LIBRARIES(pthreadpool-test pthreadpool gtest gtest_main)
ADD_TEST(pthreadpool pthreadpool-test)
ADD_EXECUTABLE(pthreadpool-cxx-test test/pthreadpool-cxx.cc)
SET_TARGET_PROPERTIES(pthreadpool-cxx-test PROPERTIES
CXX_STANDARD 11
CXX_EXTENSIONS NO)
TARGET_LINK_LIBRARIES(pthreadpool-cxx-test pthreadpool gtest gtest_main)
ADD_TEST(pthreadpool-cxx pthreadpool-cxx-test)
ENDIF()
IF(PTHREADPOOL_BUILD_BENCHMARKS)
# ---[ Build google benchmark
IF(NOT TARGET benchmark)
SET(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "")
ADD_SUBDIRECTORY(
"${GOOGLEBENCHMARK_SOURCE_DIR}"
"${CMAKE_BINARY_DIR}/googlebenchmark")
ENDIF()
ADD_EXECUTABLE(latency-bench bench/latency.cc)
SET_TARGET_PROPERTIES(latency-bench PROPERTIES
CXX_STANDARD 11
CXX_EXTENSIONS NO)
TARGET_LINK_LIBRARIES(latency-bench pthreadpool benchmark)
ADD_EXECUTABLE(throughput-bench bench/throughput.cc)
SET_TARGET_PROPERTIES(throughput-bench PROPERTIES
CXX_STANDARD 11
CXX_EXTENSIONS NO)
TARGET_LINK_LIBRARIES(throughput-bench pthreadpool benchmark)
ENDIF()
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