Add FF_THREAD_SOCKET in Makefile, Whether to use thread-level socket,

default enable.

adapter/Makefile

@@ -8,15 +8,27 @@ ifneq ($(shell pkg-config --exists libdpdk && echo 0),0)
 	$(error "No installation of DPDK found, maybe you should export environment variable `PKG_CONFIG_PATH`")
 endif
 
-DEBUG=-O0 -gdwarf-2 -g3 -DDEBUG
+DEBUG=-O0 -gdwarf-2 -g3
+
+# Per thread separate initialization dpdk lib and attach sc when needed,
+# such as listen same port in different threads, and socket can use in own thread.
+# Default enable.
+#
+# If disable it, one socket can use in all threads.
+FF_THREAD_SOCKET=1
 
 PKGCONF ?= pkg-config
 
 ifndef DEBUG
-	CFLAGS+= -g -O2
+	CFLAGS+= -g -O2 -DNDEBUG
 else
 	CFLAGS+= ${DEBUG}
 endif
+
+ifdef FF_THREAD_SOCKET
+	CFLAGS+= -DFF_THREAD_SOCKET
+endif
+
 CFLAGS += -fPIC -Wall -Werror $(shell $(PKGCONF) --cflags libdpdk)
 
 INCLUDES= -I. -I${FF_PATH}/lib

adapter/ff_hook_syscall.c

@@ -95,9 +95,19 @@
     return ret;                                                   \
 } while (0)
 
-/* per thread separate initialization dpdk lib and attach sc */
-static __thread int inited = 0;
-static __thread struct ff_so_context *sc;
+/*
+ * Per thread separate initialization dpdk lib and attach sc when needed,
+ * such as listen same port in different threads, and socket can use in own thread.
+ *
+ * Otherwise, one socket can use in all threads.
+ */
+#ifdef FF_THREAD_SOCKET
+#define __FF_THREAD __thread
+#else
+#define __FF_THREAD
+#endif
+static __FF_THREAD int inited = 0;
+static __FF_THREAD struct ff_so_context *sc;
 
 /* process-level initialization flag */
 static int proc_inited = 0;

adapter/ff_socket_ops.h

@@ -10,10 +10,10 @@
         printf("file:%s, line:%u, fun:%s, "fmt, __FILE__, __LINE__, __func__, ##__VA_ARGS__); \
     } while (0)
 
-#ifdef DEBUG
-#define DEBUG_LOG ERR_LOG
-#else
+#ifdef NDEBUG
 #define DEBUG_LOG(...)
+#else
+#define DEBUG_LOG ERR_LOG
 #endif
 
 enum FF_SOCKET_OPS {