top: do not refresh like crazy

proc/ksym.c

@@ -266,7 +266,7 @@ hell:
   *bufp = NULL;
   *roomp = 0;   /* this function will never work again */
   total = 0;
-  close(fd);
+  if(fd>0) close(fd);
   return;
 }
 

proc/library.map

@@ -9,7 +9,7 @@ global:
   display_version; procps_version; linux_version_code;
   Hertz; smp_num_cpus;
   sprint_uptime; uptime; user_from_uid; print_uptime; loadavg;
-  pretty_print_signals; print_given_signals; unix_print_signals; signal_name_to_number;
+  pretty_print_signals; print_given_signals; unix_print_signals; signal_name_to_number; signal_number_to_name;
   meminfo; vminfo;
   kb_active; kb_inactive; kb_main_buffers; kb_main_cached;
   kb_main_free; kb_main_total; kb_main_used; kb_swap_free;

proc/sig.c

@@ -146,7 +146,7 @@ int signal_name_to_number(const char *restrict name){
   return val+offset;
 }
 
-static const char *signal_number_to_name(int signo){
+const char *signal_number_to_name(int signo){
   static char buf[32];
   int n = number_of_signals;
   signo &= 0x7f; /* need to process exit values too */

proc/sig.h

@@ -18,6 +18,8 @@ EXTERN_C_BEGIN
 /* return -1 on failure */
 extern int signal_name_to_number(const char *restrict name);
 
+extern const char *signal_number_to_name(int signo);
+
 extern int print_given_signals(int argc, const char *restrict const *restrict argv, int max_line);
 
 extern void pretty_print_signals(void);