[cmaster-next] [PATCH 6/9] lib: Fix 'show thread cpu' to display active threads

[Donald Sharp]

Fix the display of 'show thread cpu' to keep track
of the number of active threads and to display that
information.

Signed-off-by: Donald Sharp <sharpd at cumulusnetworks.com>
(cherry picked from commit db4300f0568d061889ab5ac4ad54c2a5bfa67445)
---
 lib/thread.c | 9 ++++++---
 lib/thread.h | 1 +
 2 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/lib/thread.c b/lib/thread.c
index 59c0b77..ba1386a 100644
--- a/lib/thread.c
+++ b/lib/thread.c
@@ -221,8 +221,8 @@ static void
 vty_out_cpu_thread_history(struct vty* vty,
 			   struct cpu_thread_history *a)
 {
-  vty_out(vty, "%10ld.%03ld %9d %8ld %9ld %8ld %9ld",
-	  a->cpu.total/1000, a->cpu.total%1000, a->total_calls,
+  vty_out(vty, "%5d %10ld.%03ld %9d %8ld %9ld %8ld %9ld",
+	  a->total_active, 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);
   vty_out(vty, " %c%c%c%c%c%c %s%s",
@@ -247,6 +247,7 @@ cpu_record_hash_print(struct hash_backet *bucket,
   if ( !(a->types & *filter) )
        return;
   vty_out_cpu_thread_history(vty,a);
+  totals->total_active += a->total_active;
   totals->total_calls += a->total_calls;
   totals->real.total += a->real.total;
   if (totals->real.max < a->real.max)
@@ -268,7 +269,7 @@ cpu_record_print(struct vty *vty, thread_type filter)
 
   vty_out(vty, "%21s %18s %18s%s",
 	  "", "CPU (user+system):", "Real (wall-clock):", VTY_NEWLINE);
-  vty_out(vty, "   Runtime(ms)   Invoked Avg uSec Max uSecs");
+  vty_out(vty, "Active   Runtime(ms)   Invoked Avg uSec Max uSecs");
   vty_out(vty, " Avg uSec Max uSecs");
   vty_out(vty, "  Type  Thread%s", VTY_NEWLINE);
   hash_iterate(cpu_record,
@@ -572,6 +573,7 @@ thread_add_unuse (struct thread_master *m, struct thread *thread)
   assert (thread->prev == NULL);
 
   thread->type = THREAD_UNUSED;
+  thread->hist->total_active--;
   thread_list_add (&m->unuse, thread);
 }
 
@@ -726,6 +728,7 @@ thread_get (struct thread_master *m, u_char type,
       thread->hist = hash_get (cpu_record, &tmp,
 			       (void * (*) (void *))cpu_record_hash_alloc);
     }
+  thread->hist->total_active++;
   thread->func = func;
   thread->funcname = funcname;
   thread->schedfrom = schedfrom;
diff --git a/lib/thread.h b/lib/thread.h
index 5c6b96a..c22bb48 100644
--- a/lib/thread.h
+++ b/lib/thread.h
@@ -115,6 +115,7 @@ struct cpu_thread_history
 {
   int (*func)(struct thread *);
   unsigned int total_calls;
+  unsigned int total_active;
   struct time_stats
   {
     unsigned long total, max;
-- 
2.5.5