From aa533186e313c9d7f4f63464130409a215eac2bb Mon Sep 17 00:00:00 2001
From: Valient Gough <valient@gmail.com>
Date: Sun, 6 Aug 2017 09:47:33 -0700
Subject: [PATCH] add first micro benchmark

---
 CMakeLists.txt             |  6 ++++--
 encfs/MemoryPool_bench.cpp | 14 ++++++++++++++
 encfs/main_bench.cpp       |  3 +++
 3 files changed, 21 insertions(+), 2 deletions(-)
 create mode 100644 encfs/MemoryPool_bench.cpp
 create mode 100644 encfs/main_bench.cpp

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 0ef473a..1fe770f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -288,12 +288,14 @@ if (BUILD_UNIT_TESTS)
   set(BENCHMARK_ENABLE_TESTING OFF CACHE BOOL "benchmark tests")
   add_subdirectory(${GOOGLEBENCH_DIR})
   link_directories(${CMAKE_BINARY_DIR}/${GOOGLEBENCH_DIR})
-  set(GOOGLEBENCH_LIBRARIES benchmark)
 
   file(GLOB_RECURSE TEST_SOURCES "encfs/*_test.cpp")
-
   add_executable (unittests ${TEST_SOURCES})
   target_link_libraries(unittests gtest gtest_main encfs)
+
+  file(GLOB_RECURSE BENCH_SOURCES "encfs/*_bench.cpp")
+  add_executable (benchmarks ${BENCH_SOURCES})
+  target_link_libraries(benchmarks benchmark encfs)
 endif ()
 
 add_custom_target(tests COMMAND ${CMAKE_CURRENT_LIST_DIR}/test.sh)
diff --git a/encfs/MemoryPool_bench.cpp b/encfs/MemoryPool_bench.cpp
new file mode 100644
index 0000000..9326e43
--- /dev/null
+++ b/encfs/MemoryPool_bench.cpp
@@ -0,0 +1,14 @@
+#include "benchmark/benchmark.h"
+
+#include "MemoryPool.h"
+
+using namespace encfs;
+
+static void BM_MemPoolAllocate(benchmark::State& state) {
+  while (state.KeepRunning()) {
+    auto block = MemoryPool::allocate(1024);
+    MemoryPool::release(block);
+  }
+}
+// Register the function as a benchmark
+BENCHMARK(BM_MemPoolAllocate);
diff --git a/encfs/main_bench.cpp b/encfs/main_bench.cpp
new file mode 100644
index 0000000..a78145f
--- /dev/null
+++ b/encfs/main_bench.cpp
@@ -0,0 +1,3 @@
+#include "benchmark/benchmark.h"
+
+BENCHMARK_MAIN();
\ No newline at end of file