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authorDamjan Marion <damarion@cisco.com>2021-03-26 13:06:13 +0100
committerDamjan Marion <damarion@cisco.com>2021-03-26 16:33:21 +0100
commit6ffb7c61899eb782416cbd2f117042a583f189f7 (patch)
treef6bd132d53b0aded6b235d13200dba2864afc7d8 /src/vlib/threads.c
parent83f13e45bcd4b1018aa29bb6f32324c32f3a11a8 (diff)
vlib: introduce vlib_get_main_by_index(), vlib_get_n_threads()
Type: improvement Change-Id: If3da7d4338470912f37ff1794620418d928fb77f Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/vlib/threads.c')
-rw-r--r--src/vlib/threads.c55
1 files changed, 29 insertions, 26 deletions
diff --git a/src/vlib/threads.c b/src/vlib/threads.c
index dd7de73ad8c..939f9107556 100644
--- a/src/vlib/threads.c
+++ b/src/vlib/threads.c
@@ -574,7 +574,8 @@ vlib_worker_thread_bootstrap_fn (void *arg)
__os_thread_index = w - vlib_worker_threads;
- vlib_process_start_switch_stack (vlib_mains[__os_thread_index], 0);
+ vlib_process_start_switch_stack (vlib_get_main_by_index (__os_thread_index),
+ 0);
rv = (void *) clib_calljmp
((uword (*)(uword)) w->thread_function,
(uword) arg, w->thread_stack + VLIB_THREAD_STACK_SIZE);
@@ -1001,7 +1002,7 @@ worker_thread_node_runtime_update_internal (void)
ASSERT (vlib_get_thread_index () == 0);
- vm = vlib_mains[0];
+ vm = vlib_get_first_main ();
nm = &vm->node_main;
ASSERT (*vlib_worker_threads->wait_at_barrier == 1);
@@ -1017,11 +1018,11 @@ worker_thread_node_runtime_update_internal (void)
vlib_node_sync_stats (vm, n);
}
- for (i = 1; i < vec_len (vlib_mains); i++)
+ for (i = 1; i < vlib_get_n_threads (); i++)
{
vlib_node_t *n;
- vm_clone = vlib_mains[i];
+ vm_clone = vlib_get_main_by_index (i);
nm_clone = &vm_clone->node_main;
for (j = 0; j < vec_len (nm_clone->nodes); j++)
@@ -1049,7 +1050,7 @@ vlib_worker_thread_node_refork (void)
int j;
- vm = vlib_mains[0];
+ vm = vlib_get_first_main ();
nm = &vm->node_main;
vm_clone = vlib_get_main ();
nm_clone = &vm_clone->node_main;
@@ -1425,7 +1426,7 @@ vlib_worker_thread_initial_barrier_sync_and_release (vlib_main_t * vm)
{
f64 deadline;
f64 now = vlib_time_now (vm);
- u32 count = vec_len (vlib_mains) - 1;
+ u32 count = vlib_get_n_threads () - 1;
/* No worker threads? */
if (count == 0)
@@ -1451,7 +1452,7 @@ vlib_worker_thread_initial_barrier_sync_and_release (vlib_main_t * vm)
u8
vlib_worker_thread_barrier_held (void)
{
- if (vec_len (vlib_mains) < 2)
+ if (vlib_get_n_threads () < 2)
return (1);
return (*vlib_worker_threads->wait_at_barrier == 1);
@@ -1469,13 +1470,13 @@ vlib_worker_thread_barrier_sync_int (vlib_main_t * vm, const char *func_name)
u32 count;
int i;
- if (vec_len (vlib_mains) < 2)
+ if (vlib_get_n_threads () < 2)
return;
ASSERT (vlib_get_thread_index () == 0);
vlib_worker_threads[0].barrier_caller = func_name;
- count = vec_len (vlib_mains) - 1;
+ count = vlib_get_n_threads () - 1;
/* Record entry relative to last close */
now = vlib_time_now (vm);
@@ -1497,10 +1498,12 @@ vlib_worker_thread_barrier_sync_int (vlib_main_t * vm, const char *func_name)
* the barrier hold-down timer.
*/
max_vector_rate = 0.0;
- for (i = 1; i < vec_len (vlib_mains); i++)
- max_vector_rate =
- clib_max (max_vector_rate,
- (f64) vlib_last_vectors_per_main_loop (vlib_mains[i]));
+ for (i = 1; i < vlib_get_n_threads (); i++)
+ {
+ vlib_main_t *ovm = vlib_get_main_by_index (i);
+ max_vector_rate = clib_max (max_vector_rate,
+ (f64) vlib_last_vectors_per_main_loop (ovm));
+ }
vlib_worker_threads[0].barrier_sync_count++;
@@ -1562,7 +1565,7 @@ vlib_worker_thread_barrier_release (vlib_main_t * vm)
f64 t_update_main = 0.0;
int refork_needed = 0;
- if (vec_len (vlib_mains) < 2)
+ if (vlib_get_n_threads () < 2)
return;
ASSERT (vlib_get_thread_index () == 0);
@@ -1594,7 +1597,7 @@ vlib_worker_thread_barrier_release (vlib_main_t * vm)
/* Do per thread rebuilds in parallel */
refork_needed = 1;
clib_atomic_fetch_add (vlib_worker_threads->node_reforks_required,
- (vec_len (vlib_mains) - 1));
+ (vlib_get_n_threads () - 1));
now = vlib_time_now (vm);
t_update_main = now - vm->barrier_epoch;
}
@@ -1668,7 +1671,7 @@ vlib_worker_wait_one_loop (void)
{
ASSERT (vlib_get_thread_index () == 0);
- if (vec_len (vlib_mains) < 2)
+ if (vlib_get_n_threads () < 2)
return;
if (vlib_worker_thread_barrier_held ())
@@ -1677,7 +1680,7 @@ vlib_worker_wait_one_loop (void)
u32 *counts = 0;
u32 ii;
- vec_validate (counts, vec_len (vlib_mains) - 1);
+ vec_validate (counts, vlib_get_n_threads () - 1);
/* record the current loop counts */
vec_foreach_index (ii, vlib_mains)
@@ -1973,24 +1976,24 @@ show_clock_command_fn (vlib_main_t * vm,
verbose, format_clib_timebase_time,
clib_timebase_now (tb));
- if (vec_len (vlib_mains) == 1)
+ if (vlib_get_n_threads () == 1)
return 0;
vlib_cli_output (vm, "Time last barrier release %.9f",
vm->time_last_barrier_release);
- for (i = 1; i < vec_len (vlib_mains); i++)
+ for (i = 1; i < vlib_get_n_threads (); i++)
{
- if (vlib_mains[i] == 0)
+ vlib_main_t *ovm = vlib_get_main_by_index (i);
+ if (ovm == 0)
continue;
- vlib_cli_output (vm, "%d: %U", i, format_clib_time,
- &vlib_mains[i]->clib_time, verbose);
+ vlib_cli_output (vm, "%d: %U", i, format_clib_time, &ovm->clib_time,
+ verbose);
- vlib_cli_output (vm, "Thread %d offset %.9f error %.9f", i,
- vlib_mains[i]->time_offset,
- vm->time_last_barrier_release -
- vlib_mains[i]->time_last_barrier_release);
+ vlib_cli_output (
+ vm, "Thread %d offset %.9f error %.9f", i, ovm->time_offset,
+ vm->time_last_barrier_release - ovm->time_last_barrier_release);
}
return 0;
}