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load("@rules_cc//cc:defs.bzl", "cc_binary", "cc_library", "cc_test")
licenses(["notice"])
############################## pthreadpool library #############################
INTERNAL_HDRS = [
"src/threadpool-atomics.h",
"src/threadpool-common.h",
"src/threadpool-object.h",
"src/threadpool-utils.h",
]
PORTABLE_SRCS = [
"src/memory.c",
"src/portable-api.c",
]
ARCH_SPECIFIC_SRCS = [
"src/fastpath.c",
]
PTHREADS_IMPL_SRCS = PORTABLE_SRCS + ["src/pthreads.c"]
GCD_IMPL_SRCS = PORTABLE_SRCS + ["src/gcd.c"]
WINDOWS_IMPL_SRCS = PORTABLE_SRCS + ["src/windows.c"]
SHIM_IMPL_SRCS = ["src/shim.c"]
cc_library(
name = "pthreadpool",
srcs = select({
":pthreadpool_sync_primitive_explicit_condvar": INTERNAL_HDRS + PTHREADS_IMPL_SRCS,
":pthreadpool_sync_primitive_explicit_futex": INTERNAL_HDRS + PTHREADS_IMPL_SRCS,
":pthreadpool_sync_primitive_explicit_gcd": INTERNAL_HDRS + GCD_IMPL_SRCS,
":pthreadpool_sync_primitive_explicit_event": INTERNAL_HDRS + WINDOWS_IMPL_SRCS,
":emscripten_with_threads": INTERNAL_HDRS + PTHREADS_IMPL_SRCS,
":emscripten": INTERNAL_HDRS + SHIM_IMPL_SRCS,
":macos_x86": INTERNAL_HDRS + GCD_IMPL_SRCS,
":macos_x86_64": INTERNAL_HDRS + GCD_IMPL_SRCS,
":ios": INTERNAL_HDRS + GCD_IMPL_SRCS,
":watchos": INTERNAL_HDRS + GCD_IMPL_SRCS,
":tvos": INTERNAL_HDRS + GCD_IMPL_SRCS,
":windows_x86_64": INTERNAL_HDRS + WINDOWS_IMPL_SRCS,
"//conditions:default": INTERNAL_HDRS + PTHREADS_IMPL_SRCS,
}) + select({
":linux_x86_64": ARCH_SPECIFIC_SRCS,
":android_x86": ARCH_SPECIFIC_SRCS,
":android_x86_64": ARCH_SPECIFIC_SRCS,
":windows_x86_64": ARCH_SPECIFIC_SRCS,
":macos_x86": ARCH_SPECIFIC_SRCS,
":macos_x86_64": ARCH_SPECIFIC_SRCS,
":ios_x86": ARCH_SPECIFIC_SRCS,
":ios_x86_64": ARCH_SPECIFIC_SRCS,
":watchos_x86": ARCH_SPECIFIC_SRCS,
":watchos_x86_64": ARCH_SPECIFIC_SRCS,
":tvos_x86_64": ARCH_SPECIFIC_SRCS,
"//conditions:default": [],
}),
copts = [
"-std=gnu11",
] + select({
":optimized_build": ["-O2"],
"//conditions:default": [],
}) + select({
":linux_arm": ["-DPTHREADPOOL_USE_CPUINFO=1"],
":linux_armeabi": ["-DPTHREADPOOL_USE_CPUINFO=1"],
":linux_armhf": ["-DPTHREADPOOL_USE_CPUINFO=1"],
":linux_armv7a": ["-DPTHREADPOOL_USE_CPUINFO=1"],
":linux_aarch64": ["-DPTHREADPOOL_USE_CPUINFO=1"],
":android_armv7": ["-DPTHREADPOOL_USE_CPUINFO=1"],
":android_arm64": ["-DPTHREADPOOL_USE_CPUINFO=1"],
"//conditions:default": ["-DPTHREADPOOL_USE_CPUINFO=0"],
}) + select({
":pthreadpool_sync_primitive_explicit_condvar": [
"-DPTHREADPOOL_USE_CONDVAR=1",
"-DPTHREADPOOL_USE_FUTEX=0",
"-DPTHREADPOOL_USE_GCD=0",
"-DPTHREADPOOL_USE_EVENT=0",
],
":pthreadpool_sync_primitive_explicit_futex": [
"-DPTHREADPOOL_USE_CONDVAR=0",
"-DPTHREADPOOL_USE_FUTEX=1",
"-DPTHREADPOOL_USE_GCD=0",
"-DPTHREADPOOL_USE_EVENT=0",
],
":pthreadpool_sync_primitive_explicit_gcd": [
"-DPTHREADPOOL_USE_CONDVAR=0",
"-DPTHREADPOOL_USE_FUTEX=0",
"-DPTHREADPOOL_USE_GCD=1",
"-DPTHREADPOOL_USE_EVENT=0",
],
":pthreadpool_sync_primitive_explicit_event": [
"-DPTHREADPOOL_USE_CONDVAR=0",
"-DPTHREADPOOL_USE_FUTEX=0",
"-DPTHREADPOOL_USE_GCD=0",
"-DPTHREADPOOL_USE_EVENT=1",
],
"//conditions:default": [],
}) + select({
":linux_x86_64": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":android_x86": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":android_x86_64": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":windows_x86_64": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":macos_x86": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":macos_x86_64": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":ios_x86": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":ios_x86_64": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":watchos_x86": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":watchos_x86_64": ["-DPTHREADPOOL_USE_FASTPATH=1"],
":tvos_x86_64": ["-DPTHREADPOOL_USE_FASTPATH=1"],
"//conditions:default": ["-DPTHREADPOOL_USE_FASTPATH=0"],
}),
hdrs = [
"include/pthreadpool.h",
],
defines = [
"PTHREADPOOL_NO_DEPRECATED_API",
],
includes = [
"include",
],
linkopts = select({
":emscripten_with_threads": [
"-s ALLOW_BLOCKING_ON_MAIN_THREAD=1",
"-s PTHREAD_POOL_SIZE=8",
],
"//conditions:default": [],
}),
strip_include_prefix = "include",
deps = [
"@FXdiv",
] + select({
":linux_arm": ["@cpuinfo"],
":linux_armeabi": ["@cpuinfo"],
":linux_armhf": ["@cpuinfo"],
":linux_armv7a": ["@cpuinfo"],
":linux_aarch64": ["@cpuinfo"],
":android_armv7": ["@cpuinfo"],
":android_arm64": ["@cpuinfo"],
"//conditions:default": [],
}),
visibility = ["//visibility:public"],
)
################################## Unit tests ##################################
EMSCRIPTEN_TEST_LINKOPTS = [
"-s ASSERTIONS=2",
"-s ERROR_ON_UNDEFINED_SYMBOLS=1",
"-s DEMANGLE_SUPPORT=1",
"-s EXIT_RUNTIME=1",
"-s ALLOW_MEMORY_GROWTH=0",
"-s TOTAL_MEMORY=67108864", # 64M
]
cc_test(
name = "pthreadpool_test",
srcs = ["test/pthreadpool.cc"],
linkopts = select({
":emscripten": EMSCRIPTEN_TEST_LINKOPTS,
"//conditions:default": [],
}),
deps = [
":pthreadpool",
"@com_google_googletest//:gtest_main",
],
)
################################## Benchmarks ##################################
EMSCRIPTEN_BENCHMARK_LINKOPTS = [
"-s ASSERTIONS=1",
"-s ERROR_ON_UNDEFINED_SYMBOLS=1",
"-s EXIT_RUNTIME=1",
"-s ALLOW_MEMORY_GROWTH=0",
]
cc_binary(
name = "latency_bench",
srcs = ["bench/latency.cc"],
linkopts = select({
":emscripten": EMSCRIPTEN_BENCHMARK_LINKOPTS,
"//conditions:default": [],
}),
deps = [
":pthreadpool",
"@com_google_benchmark//:benchmark",
],
)
cc_binary(
name = "throughput_bench",
srcs = ["bench/throughput.cc"],
linkopts = select({
":emscripten": EMSCRIPTEN_BENCHMARK_LINKOPTS,
"//conditions:default": [],
}),
deps = [
":pthreadpool",
"@com_google_benchmark//:benchmark",
],
)
############################# Build configurations #############################
# Synchronize workers using pthreads condition variable.
config_setting(
name = "pthreadpool_sync_primitive_explicit_condvar",
define_values = {"pthreadpool_sync_primitive": "condvar"},
)
# Synchronize workers using futex.
config_setting(
name = "pthreadpool_sync_primitive_explicit_futex",
define_values = {"pthreadpool_sync_primitive": "futex"},
)
# Synchronize workers using Grand Central Dispatch.
config_setting(
name = "pthreadpool_sync_primitive_explicit_gcd",
define_values = {"pthreadpool_sync_primitive": "gcd"},
)
# Synchronize workers using WinAPI event.
config_setting(
name = "pthreadpool_sync_primitive_explicit_event",
define_values = {"pthreadpool_sync_primitive": "event"},
)
config_setting(
name = "optimized_build",
values = {
"compilation_mode": "opt",
},
)
config_setting(
name = "linux_x86_64",
values = {"cpu": "k8"},
)
config_setting(
name = "linux_arm",
values = {"cpu": "arm"},
)
config_setting(
name = "linux_armeabi",
values = {"cpu": "armeabi"},
)
config_setting(
name = "linux_armhf",
values = {"cpu": "armhf"},
)
config_setting(
name = "linux_armv7a",
values = {"cpu": "armv7a"},
)
config_setting(
name = "linux_aarch64",
values = {"cpu": "aarch64"},
)
config_setting(
name = "android_x86",
values = {
"crosstool_top": "//external:android/crosstool",
"cpu": "x86",
},
)
config_setting(
name = "android_x86_64",
values = {
"crosstool_top": "//external:android/crosstool",
"cpu": "x86_64",
},
)
config_setting(
name = "android_armv7",
values = {
"crosstool_top": "//external:android/crosstool",
"cpu": "armeabi-v7a",
},
)
config_setting(
name = "android_arm64",
values = {
"crosstool_top": "//external:android/crosstool",
"cpu": "arm64-v8a",
},
)
# Note: we need to individually match x86 and x86-64 macOS rather than use
# catch-all "apple_platform_type": "macos" because that option defaults to
# "macos" even when building on Linux!
config_setting(
name = "macos_x86",
values = {
"apple_platform_type": "macos",
"cpu": "darwin",
},
)
config_setting(
name = "macos_x86_64",
values = {
"apple_platform_type": "macos",
"cpu": "darwin_x86_64",
},
)
config_setting(
name = "ios",
values = {
"crosstool_top": "@bazel_tools//tools/cpp:toolchain",
"apple_platform_type": "ios",
},
)
config_setting(
name = "ios_x86",
values = {
"apple_platform_type": "ios",
"cpu": "ios_i386",
},
)
config_setting(
name = "ios_x86_64",
values = {
"apple_platform_type": "ios",
"cpu": "ios_x86_64",
},
)
config_setting(
name = "watchos",
values = {
"crosstool_top": "@bazel_tools//tools/cpp:toolchain",
"apple_platform_type": "watchos",
},
)
config_setting(
name = "watchos_x86",
values = {
"apple_platform_type": "watchos",
"cpu": "watchos_i386",
},
)
config_setting(
name = "watchos_x86_64",
values = {
"apple_platform_type": "watchos",
"cpu": "watchos_x86_64",
},
)
config_setting(
name = "tvos",
values = {
"crosstool_top": "@bazel_tools//tools/cpp:toolchain",
"apple_platform_type": "tvos",
},
)
config_setting(
name = "tvos_x86_64",
values = {
"apple_platform_type": "tvos",
"cpu": "tvos_x86_64",
},
)
config_setting(
name = "windows_x86_64",
values = {
"cpu": "x64_windows",
},
)
config_setting(
name = "emscripten",
values = {
"crosstool_top": "//toolchain:emscripten",
}
)
config_setting(
name = "emscripten_with_threads",
values = {
"crosstool_top": "//toolchain:emscripten",
"copt": "-pthread",
}
)