new file:   base/dsalgo/session_pool.cc
	new file:   base/dsalgo/session_pool.h
	modified:   base/dsalgo_test/Makefile
	modified:   base/dsalgo_test/Makefile~
	new file:   base/dsalgo_test/entry_test.cc
	new file:   base/dsalgo_test/session_pool_test.cc
	modified:   base/lib/libdsalgo.a
	base/dsalgo/common_queue.cc~
	base/dsalgo/common_queue.h~
	base/dsalgo/session_pool.cc~
	base/dsalgo/session_pool.h~
	base/dsalgo_test/common_queue_test
	base/dsalgo_test/entry_test
	base/dsalgo_test/entry_test.cc~
	base/dsalgo_test/session_pool_test
	base/dsalgo_test/session_pool_test.cc~