Cleanup async client APIs.

example/soap_book_client/CMakeLists.txt

@@ -11,8 +11,7 @@ set(SRCS
 
 add_executable(${TARGET_NAME} ${SRCS})
 
-target_link_libraries(${TARGET_NAME} webcc pugixml ${Boost_LIBRARIES})
-target_link_libraries(${TARGET_NAME} "${CMAKE_THREAD_LIBS_INIT}")
+target_link_libraries(${TARGET_NAME} ${EXAMPLE_COMMON_LIBS} pugixml)
 
 # Install VLD DLLs to build dir so that the example can be launched from
 # inside VS.

example/soap_book_client/book_client.h

@@ -10,7 +10,7 @@
 #include "example/common/book.h"
 
 class BookClient {
- public:
+public:
   BookClient(const std::string& host, const std::string& port);
   
   int code() const { return code_; }
@@ -28,7 +28,7 @@ class BookClient {
   // Delete a book by ID.
   bool DeleteBook(const std::string& id);
 
- private:
+private:
   // Call with 0 parameter.
   bool Call0(const std::string& operation, std::string* result_str);