增加HTTP Session延迟回收机制，完善HTTP Session销毁流程

common/include/tfe_utils.h

@@ -107,6 +107,13 @@ char *tfe_thread_safe_ctime(const time_t *tp, char *buf, int len);
 #define TFE_PTR_DIFF(ptr1, ptr2) 		((uintptr_t)(ptr1) - (uintptr_t)(ptr2))
 #define TFE_DIM(x)						(sizeof (x) / sizeof ((x)[0]))
 
+#ifndef TAILQ_FOREACH_SAFE
+#define TAILQ_FOREACH_SAFE(var, head, field, tvar)								\
+         for ((var) = TAILQ_FIRST((head));										\
+             (var) && ((tvar) = TAILQ_NEXT((var), field), 1);					\
+            (var) = (tvar))
+#endif
+
 #include <stdio.h>
 
 static inline void tfe_hexdump2file(FILE *f, const char * title, const void * buf, unsigned int len)