CMake support

- initial cmake support
- downgrade cmake requirement to 2.8.12
- factorize cmake test flags / libs options
- refactor test / library under helpers functions, follow bazel's style
- Add fix for MSVC and Windows support ( thx @patrikfors )
- Switch to default "add_subdirectory()" usage mode
- add CMake/README.md for instructions
- add header-only cmake target generator
- map absl target to absl:: namespace

1 files changed, 154 insertions, 0 deletions

diff --git a/absl/synchronization/CMakeLists.txt b/absl/synchronization/CMakeLists.txt
new file mode 100644
index 000000000000..c5c4c6268618
--- /dev/null
+++ b/absl/synchronization/CMakeLists.txt
@@ -0,0 +1,154 @@
+#
+# Copyright 2017 The Abseil Authors.
+#
+# 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.
+#
+
+list(APPEND SYNCHRONIZATION_PUBLIC_HEADERS
+  "barrier.h"
+  "blocking_counter.h"
+  "mutex.h"
+  "notification.h"
+)
+
+
+list(APPEND SYNCHRONIZATION_INTERNAL_HEADERS
+  "internal/create_thread_identity.h"
+  "internal/graphcycles.h"
+  "internal/kernel_timeout.h"
+  "internal/per_thread_sem.h"
+  "internal/thread_pool.h"
+  "internal/waiter.h"
+)
+
+
+
+# syncrhonisation library
+list(APPEND SYNCHRONIZATION_SRC 
+  "barrier.cc"
+  "blocking_counter.cc"
+  "internal/create_thread_identity.cc"
+  "internal/per_thread_sem.cc"
+  "internal/waiter.cc"
+  "internal/graphcycles.cc"
+  "notification.cc"
+  "mutex.cc"
+)
+set(SYNCHRONIZATION_PUBLIC_LIBRARIES absl::base absl_malloc_extension absl::time)
+
+absl_library(
+  TARGET
+    absl_synchronization
+  SOURCES
+    ${SYNCHRONIZATION_SRC}
+  PUBLIC_LIBRARIES
+    ${SYNCHRONIZATION_PUBLIC_LIBRARIES}
+  EXPORT_NAME
+    synchronization
+)
+
+
+#
+## TESTS
+#
+
+
+# test barrier_test
+set(BARRIER_TEST_SRC "barrier_test.cc")
+set(BARRIER_TEST_PUBLIC_LIBRARIES absl::synchronization)
+
+absl_test(
+  TARGET
+    barrier_test
+  SOURCES
+    ${BARRIER_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${BARRIER_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test blocking_counter_test
+set(BLOCKING_COUNTER_TEST_SRC "blocking_counter_test.cc")
+set(BLOCKING_COUNTER_TEST_PUBLIC_LIBRARIES absl::synchronization)
+
+absl_test(
+  TARGET
+    blocking_counter_test
+  SOURCES
+    ${BLOCKING_COUNTER_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${BLOCKING_COUNTER_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test graphcycles_test
+set(GRAPHCYCLES_TEST_SRC "internal/graphcycles_test.cc")
+set(GRAPHCYCLES_TEST_PUBLIC_LIBRARIES absl::synchronization)
+
+absl_test(
+  TARGET
+    graphcycles_test
+  SOURCES
+    ${GRAPHCYCLES_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${GRAPHCYCLES_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test mutex_test
+set(MUTEX_TEST_SRC "mutex_test.cc")
+set(MUTEX_TEST_PUBLIC_LIBRARIES absl::synchronization)
+
+absl_test(
+  TARGET
+    mutex_test
+  SOURCES
+    ${MUTEX_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${MUTEX_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test notification_test
+set(NOTIFICATION_TEST_SRC "notification_test.cc")
+set(NOTIFICATION_TEST_PUBLIC_LIBRARIES absl::synchronization)
+
+absl_test(
+  TARGET
+    notification_test
+  SOURCES
+    ${NOTIFICATION_TEST_SRC}
+  PUBLIC_LIBRARIES
+    ${NOTIFICATION_TEST_PUBLIC_LIBRARIES}
+)
+
+
+# test per_thread_sem_test_common
+set(PER_THREAD_SEM_TEST_COMMON_SRC "internal/per_thread_sem_test.cc")
+set(PER_THREAD_SEM_TEST_COMMON_PUBLIC_LIBRARIES absl::synchronization absl::strings)
+
+absl_test(
+  TARGET
+    per_thread_sem_test_common
+  SOURCES
+    ${PER_THREAD_SEM_TEST_COMMON_SRC}
+  PUBLIC_LIBRARIES
+    ${PER_THREAD_SEM_TEST_COMMON_PUBLIC_LIBRARIES}
+)
+
+
+
+
+
+
+