#include <assert.h>
#include <vppinfra/vec.h>
#include <vppinfra/lock.h>
-#include "stat_client.h"
#include <stdatomic.h>
#include <vpp/stats/stat_segment.h>
-
-struct stat_client_main_t
-{
- uint64_t current_epoch;
- stat_segment_shared_header_t *shared_header;
- stat_segment_directory_entry_t *directory_vector;
- ssize_t memory_size;
-};
+#include <vpp-api/client/stat_client.h>
stat_client_main_t stat_client_main;
get_stat_vector_r (stat_client_main_t * sm)
{
ASSERT (sm->shared_header);
- return stat_segment_pointer (sm->shared_header,
- sm->shared_header->directory_offset);
+ return stat_segment_adjust (sm,
+ (void *) sm->shared_header->directory_vector);
}
int
sm->memory_size = st.st_size;
sm->shared_header = memaddr;
sm->directory_vector =
- stat_segment_pointer (memaddr, sm->shared_header->directory_offset);
+ stat_segment_adjust (sm, (void *) sm->shared_header->directory_vector);
return 0;
}
return;
}
-typedef struct
-{
- uint64_t epoch;
-} stat_segment_access_t;
-
-static void
-stat_segment_access_start (stat_segment_access_t * sa,
- stat_client_main_t * sm)
-{
- stat_segment_shared_header_t *shared_header = sm->shared_header;
- sa->epoch = shared_header->epoch;
- while (shared_header->in_progress != 0)
- ;
-}
-
-static bool
-stat_segment_access_end (stat_segment_access_t * sa, stat_client_main_t * sm)
-{
- stat_segment_shared_header_t *shared_header = sm->shared_header;
-
- if (shared_header->epoch != sa->epoch || shared_header->in_progress)
- return false;
- return true;
-}
-
void
stat_segment_disconnect (void)
{
stat_segment_access_t sa;
stat_segment_directory_entry_t *ep;
- /* Has directory been update? */
+ /* Has directory been updated? */
if (sm->shared_header->epoch != sm->current_epoch)
return 0;
- stat_segment_access_start (&sa, sm);
+ if (stat_segment_access_start (&sa, sm))
+ return 0;
ep = vec_elt_at_index (sm->directory_vector, STAT_COUNTER_HEARTBEAT);
if (!stat_segment_access_end (&sa, sm))
return 0.0;
return stat_segment_heartbeat_r (sm);
}
+#define stat_vec_dup(S,V) \
+ ({ \
+ __typeof__ ((V)[0]) * _v(v) = 0; \
+ if (V && ((void *)V > (void *)S->shared_header) && \
+ (((void*)V + vec_bytes(V)) < \
+ ((void *)S->shared_header + S->memory_size))) \
+ _v(v) = vec_dup(V); \
+ _v(v); \
+})
+
+static counter_t *
+stat_vec_simple_init (counter_t c)
+{
+ counter_t *v = 0;
+ vec_add1 (v, c);
+ return v;
+}
+
+static vlib_counter_t *
+stat_vec_combined_init (vlib_counter_t c)
+{
+ vlib_counter_t *v = 0;
+ vec_add1 (v, c);
+ return v;
+}
+
+/*
+ * If index2 is specified copy out the column (the indexed value across all
+ * threads), otherwise copy out all values.
+ */
static stat_segment_data_t
-copy_data (stat_segment_directory_entry_t * ep, stat_client_main_t * sm)
+copy_data (stat_segment_directory_entry_t *ep, u32 index2, char *name,
+ stat_client_main_t *sm)
{
stat_segment_data_t result = { 0 };
int i;
vlib_counter_t **combined_c; /* Combined counter */
counter_t **simple_c; /* Simple counter */
- uint64_t *offset_vector;
+ uint64_t *error_vector;
assert (sm->shared_header);
result.type = ep->type;
- result.name = strdup (ep->name);
+ result.name = strdup (name ? name : ep->name);
+
switch (ep->type)
{
case STAT_DIR_TYPE_SCALAR_INDEX:
break;
case STAT_DIR_TYPE_COUNTER_VECTOR_SIMPLE:
- if (ep->offset == 0)
- return result;
- simple_c = stat_segment_pointer (sm->shared_header, ep->offset);
- result.simple_counter_vec = vec_dup (simple_c);
- offset_vector =
- stat_segment_pointer (sm->shared_header, ep->offset_vector);
+ simple_c = stat_segment_adjust (sm, ep->data);
+ result.simple_counter_vec = stat_vec_dup (sm, simple_c);
for (i = 0; i < vec_len (simple_c); i++)
{
- counter_t *cb =
- stat_segment_pointer (sm->shared_header, offset_vector[i]);
- result.simple_counter_vec[i] = vec_dup (cb);
+ counter_t *cb = stat_segment_adjust (sm, simple_c[i]);
+ if (index2 != ~0)
+ result.simple_counter_vec[i] = stat_vec_simple_init (cb[index2]);
+ else
+ result.simple_counter_vec[i] = stat_vec_dup (sm, cb);
}
break;
case STAT_DIR_TYPE_COUNTER_VECTOR_COMBINED:
- if (ep->offset == 0)
- return result;
- combined_c = stat_segment_pointer (sm->shared_header, ep->offset);
- result.combined_counter_vec = vec_dup (combined_c);
- offset_vector =
- stat_segment_pointer (sm->shared_header, ep->offset_vector);
+ combined_c = stat_segment_adjust (sm, ep->data);
+ result.combined_counter_vec = stat_vec_dup (sm, combined_c);
for (i = 0; i < vec_len (combined_c); i++)
{
- vlib_counter_t *cb =
- stat_segment_pointer (sm->shared_header, offset_vector[i]);
- result.combined_counter_vec[i] = vec_dup (cb);
+ vlib_counter_t *cb = stat_segment_adjust (sm, combined_c[i]);
+ if (index2 != ~0)
+ result.combined_counter_vec[i] =
+ stat_vec_combined_init (cb[index2]);
+ else
+ result.combined_counter_vec[i] = stat_vec_dup (sm, cb);
}
break;
case STAT_DIR_TYPE_ERROR_INDEX:
/* Gather errors from all threads into a vector */
- offset_vector = stat_segment_pointer (sm->shared_header,
- sm->shared_header->error_offset);
- vec_validate (result.error_vector, vec_len (offset_vector) - 1);
- for (i = 0; i < vec_len (offset_vector); i++)
+ error_vector =
+ stat_segment_adjust (sm, (void *) sm->shared_header->error_vector);
+ vec_validate (result.error_vector, vec_len (error_vector) - 1);
+ for (i = 0; i < vec_len (error_vector); i++)
{
- counter_t *cb =
- stat_segment_pointer (sm->shared_header, offset_vector[i]);
+ counter_t *cb = stat_segment_adjust (sm, (void *) error_vector[i]);
result.error_vector[i] = cb[ep->index];
}
break;
case STAT_DIR_TYPE_NAME_VECTOR:
- if (ep->offset == 0)
- return result;
- uint8_t **name_vector =
- stat_segment_pointer (sm->shared_header, ep->offset);
- result.name_vector = vec_dup (name_vector);
- offset_vector =
- stat_segment_pointer (sm->shared_header, ep->offset_vector);
- for (i = 0; i < vec_len (name_vector); i++)
- {
- if (offset_vector[i])
- {
- u8 *name =
- stat_segment_pointer (sm->shared_header, offset_vector[i]);
- result.name_vector[i] = vec_dup (name);
- }
- else
- result.name_vector[i] = 0;
- }
+ {
+ uint8_t **name_vector = stat_segment_adjust (sm, ep->data);
+ result.name_vector = stat_vec_dup (sm, name_vector);
+ for (i = 0; i < vec_len (name_vector); i++)
+ {
+ u8 *name = stat_segment_adjust (sm, name_vector[i]);
+ result.name_vector[i] = stat_vec_dup (sm, name);
+ }
+ }
+ break;
+
+ case STAT_DIR_TYPE_SYMLINK:
+ /* Gather info from all threads into a vector */
+ {
+ stat_segment_directory_entry_t *ep2;
+ ep2 = vec_elt_at_index (sm->directory_vector, ep->index1);
+ return copy_data (ep2, ep->index2, ep->name, sm);
+ }
+
+ case STAT_DIR_TYPE_EMPTY:
break;
default:
vec_free (res[i].combined_counter_vec[j]);
vec_free (res[i].combined_counter_vec);
break;
+ case STAT_DIR_TYPE_NAME_VECTOR:
+ for (j = 0; j < vec_len (res[i].name_vector); j++)
+ vec_free (res[i].name_vector[j]);
+ vec_free (res[i].name_vector);
+ break;
+ case STAT_DIR_TYPE_ERROR_INDEX:
+ vec_free (res[i].error_vector);
+ break;
+ case STAT_DIR_TYPE_SCALAR_INDEX:
+ case STAT_DIR_TYPE_EMPTY:
+ break;
default:
- ;
+ assert (0);
}
free (res[i].name);
}
}
}
- stat_segment_access_start (&sa, sm);
+ if (stat_segment_access_start (&sa, sm))
+ return 0;
stat_segment_directory_entry_t *counter_vec = get_stat_vector_r (sm);
for (j = 0; j < vec_len (counter_vec); j++)
if (sm->shared_header->epoch != sm->current_epoch)
return 0;
- stat_segment_access_start (&sa, sm);
+ if (stat_segment_access_start (&sa, sm))
+ return 0;
+
for (i = 0; i < vec_len (stats); i++)
{
/* Collect counter */
ep = vec_elt_at_index (sm->directory_vector, stats[i]);
- vec_add1 (res, copy_data (ep, sm));
+ vec_add1 (res, copy_data (ep, ~0, 0, sm));
}
if (stat_segment_access_end (&sa, sm))
stat_segment_data_t *res = 0;
stat_segment_access_t sa;
- stat_segment_access_start (&sa, sm);
+ /* Has directory been update? */
+ if (sm->shared_header->epoch != sm->current_epoch)
+ return 0;
+
+ if (stat_segment_access_start (&sa, sm))
+ return 0;
/* Collect counter */
ep = vec_elt_at_index (sm->directory_vector, index);
- vec_add1 (res, copy_data (ep, sm));
+ vec_add1 (res, copy_data (ep, ~0, 0, sm));
if (stat_segment_access_end (&sa, sm))
return res;
/* Has directory been update? */
if (sm->shared_header->epoch != sm->current_epoch)
return 0;
- stat_segment_access_start (&sa, sm);
+ if (stat_segment_access_start (&sa, sm))
+ return 0;
vec = get_stat_vector_r (sm);
ep = vec_elt_at_index (vec, index);
if (!stat_segment_access_end (&sa, sm))
return stat_segment_index_to_name_r (index, sm);
}
+uint64_t
+stat_segment_version_r (stat_client_main_t * sm)
+{
+ ASSERT (sm->shared_header);
+ return sm->shared_header->version;
+}
+
+uint64_t
+stat_segment_version (void)
+{
+ stat_client_main_t *sm = &stat_client_main;
+ return stat_segment_version_r (sm);
+}
+
/*
* fd.io coding-style-patch-verification: ON
*