build: massively remove needless checks

Since we have autoconf results from a wide swath of target platforms, we
can go remove checks that have the same result on all systems.

This also removes several "fallback" implementations of functions that,
at some point in the history, weren't available on all target platforms.

Signed-off-by: David Lamparter <equinox@opensourcerouting.org>

1 files changed, 1 insertions, 21 deletions

diff --git a/lib/thread.c b/lib/thread.c
index 26be17585e..6ada7cd96a 100644
--- a/lib/thread.c
+++ b/lib/thread.c
@@ -221,16 +221,10 @@ static void
 vty_out_cpu_thread_history(struct vty* vty,
 			   struct cpu_thread_history *a)
 {
-#ifdef HAVE_RUSAGE
   vty_out(vty, "%10ld.%03ld %9d %8ld %9ld %8ld %9ld",
 	  a->cpu.total/1000, a->cpu.total%1000, a->total_calls,
 	  a->cpu.total/a->total_calls, a->cpu.max,
 	  a->real.total/a->total_calls, a->real.max);
-#else
-  vty_out(vty, "%10ld.%03ld %9d %8ld %9ld",
-	  a->real.total/1000, a->real.total%1000, a->total_calls,
-	  a->real.total/a->total_calls, a->real.max);
-#endif
   vty_out(vty, " %c%c%c%c%c%c %s%s",
 	  a->types & (1 << THREAD_READ) ? 'R':' ',
 	  a->types & (1 << THREAD_WRITE) ? 'W':' ',
@@ -257,11 +251,9 @@ cpu_record_hash_print(struct hash_backet *bucket,
   totals->real.total += a->real.total;
   if (totals->real.max < a->real.max)
     totals->real.max = a->real.max;
-#ifdef HAVE_RUSAGE
   totals->cpu.total += a->cpu.total;
   if (totals->cpu.max < a->cpu.max)
     totals->cpu.max = a->cpu.max;
-#endif
 }
 
 static void
@@ -274,14 +266,10 @@ cpu_record_print(struct vty *vty, thread_type filter)
   tmp.funcname = "TOTAL";
   tmp.types = filter;
 
-#ifdef HAVE_RUSAGE
   vty_out(vty, "%21s %18s %18s%s",
-  	  "", "CPU (user+system):", "Real (wall-clock):", VTY_NEWLINE);
-#endif
+	  "", "CPU (user+system):", "Real (wall-clock):", VTY_NEWLINE);
   vty_out(vty, "   Runtime(ms)   Invoked Avg uSec Max uSecs");
-#ifdef HAVE_RUSAGE
   vty_out(vty, " Avg uSec Max uSecs");
-#endif
   vty_out(vty, "  Type  Thread%s", VTY_NEWLINE);
   hash_iterate(cpu_record,
 	       (void(*)(struct hash_backet*,void*))cpu_record_hash_print,
@@ -1373,13 +1361,9 @@ thread_fetch (struct thread_master *m, struct thread *fetch)
 unsigned long
 thread_consumed_time (RUSAGE_T *now, RUSAGE_T *start, unsigned long *cputime)
 {
-#ifdef HAVE_RUSAGE
   /* This is 'user + sys' time.  */
   *cputime = timeval_elapsed (now->cpu.ru_utime, start->cpu.ru_utime) +
 	     timeval_elapsed (now->cpu.ru_stime, start->cpu.ru_stime);
-#else
-  *cputime = 0;
-#endif /* HAVE_RUSAGE */
   return timeval_elapsed (now->real, start->real);
 }
 
@@ -1411,9 +1395,7 @@ void
 thread_getrusage (RUSAGE_T *r)
 {
   quagga_get_relative (NULL);
-#ifdef HAVE_RUSAGE
   getrusage(RUSAGE_SELF, &(r->cpu));
-#endif
   r->real = relative_time;
 
 #ifdef HAVE_CLOCK_MONOTONIC
@@ -1466,11 +1448,9 @@ thread_call (struct thread *thread)
   thread->hist->real.total += realtime;
   if (thread->hist->real.max < realtime)
     thread->hist->real.max = realtime;
-#ifdef HAVE_RUSAGE
   thread->hist->cpu.total += cputime;
   if (thread->hist->cpu.max < cputime)
     thread->hist->cpu.max = cputime;
-#endif
 
   ++(thread->hist->total_calls);
   thread->hist->types |= (1 << thread->add_type);