diff options
Diffstat (limited to 'src/plugins/perfmon/parse_util.c')
| -rw-r--r-- | src/plugins/perfmon/parse_util.c | 242 |
1 files changed, 0 insertions, 242 deletions
diff --git a/src/plugins/perfmon/parse_util.c b/src/plugins/perfmon/parse_util.c deleted file mode 100644 index 8c9e9be59f5..00000000000 --- a/src/plugins/perfmon/parse_util.c +++ /dev/null @@ -1,242 +0,0 @@ -/* - * parse_util.c - halfhearted json parser - * - * Copyright (c) 2018 Cisco Systems and/or its affiliates - * Licensed under the Apache License, Version 2.0 (the "License"); - * you may not use this file except in compliance with the License. - * You may obtain a copy of the License at: - * - * http://www.apache.org/licenses/LICENSE-2.0 - * - * Unless required by applicable law or agreed to in writing, software - * distributed under the License is distributed on an "AS IS" BASIS, - * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. - * See the License for the specific language governing permissions and - * limitations under the License. - */ - -#include <perfmon/perfmon.h> -#include <vppinfra/unix.h> - -typedef enum -{ - STATE_START, - STATE_READ_NAME, - STATE_READ_VALUE, -} parse_state_t; - -static u8 * -downcase (u8 * s) -{ - u8 *rv = 0; - u8 c; - int i; - - for (i = 0; i < vec_len (s); i++) - { - c = s[i]; - if (c >= 'A' && c <= 'Z') - c = c + ('a' - 'A'); - vec_add1 (rv, c); - } - return (rv); -} - -uword * -perfmon_parse_table (perfmon_main_t * pm, char *path, char *table_name) -{ - u8 *cp; - u8 *event_name; - int state = STATE_START; - uword *ht; - name_value_pair_t *nvp = 0; - name_value_pair_t **nvps = 0; - u8 *v; - int i; - u8 *json_filename; - clib_error_t *error; - - /* Create the name/value hash table in any case... */ - ht = hash_create_string (0, sizeof (uword)); - - json_filename = format (0, "%s/%s%c", path, table_name, 0); - - vlib_log_debug (pm->log_class, "Try to read perfmon events from %s", - json_filename); - - error = unix_proc_file_contents ((char *) json_filename, &cp); - - if (error) - { - vlib_log_err (pm->log_class, - "Failed to read CPU-specific counter table %s", - json_filename); - vlib_log_err (pm->log_class, - "Please install the vpp-dev package and then:"); - vlib_log_err - (pm->log_class, "cd %s; sudo tar Jxf PerfmonTables.tar.xz", path); - vlib_log_err (pm->log_class, "and restart vpp."); - - vec_free (json_filename); - clib_error_report (error); - return ht; - } - vlib_log_debug (pm->log_class, "Read OK, parse the event table..."); - vec_free (json_filename); - -again: - while (*cp) - { - switch (state) - { - case STATE_START: - while (*cp && *cp != '{' && *cp != '}' && *cp != ',') - cp++; - if (*cp == 0) - goto done; - - /* Look for a new event */ - if (*cp == '{') - { - if (*cp == 0) - { - error: - clib_warning ("parse fail"); - hash_free (ht); - return 0; - } - cp++; - state = STATE_READ_NAME; - goto again; - } - else if (*cp == '}') /* end of event */ - { - /* Look for the "EventName" nvp */ - for (i = 0; i < vec_len (nvps); i++) - { - nvp = nvps[i]; - if (!strncmp ((char *) nvp->name, "EventName", 9)) - { - event_name = nvp->value; - goto found; - } - } - /* no name? */ - for (i = 0; i < vec_len (nvps); i++) - { - vec_free (nvps[i]->name); - vec_free (nvps[i]->value); - } - vec_free (nvps); - cp++; - goto again; - - found: - event_name = downcase (event_name); - hash_set_mem (ht, event_name, nvps); - nvp = 0; - nvps = 0; - cp++; - goto again; - } - else if (*cp == ',') /* punctuation */ - { - cp++; - goto again; - } - else /* should never happen... */ - cp++; - goto again; - - case STATE_READ_NAME: - vec_validate (nvp, 0); - v = 0; - while (*cp && *cp != '"') - cp++; - - if (*cp == 0) - { - vec_free (nvp); - goto error; - } - - cp++; - while (*cp && *cp != '"') - { - vec_add1 (v, *cp); - cp++; - } - if (*cp == 0) - { - vec_free (v); - goto error; - } - cp++; - vec_add1 (v, 0); - nvp->name = v; - state = STATE_READ_VALUE; - goto again; - - case STATE_READ_VALUE: - while (*cp && *cp != ':') - cp++; - if (*cp == 0) - { - vec_free (nvp->name); - goto error; - } - while (*cp && *cp != '"') - cp++; - if (*cp == 0) - { - vec_free (nvp->name); - goto error; - } - else - cp++; - v = 0; - while (*cp && *cp != '"') - { - vec_add1 (v, *cp); - cp++; - } - if (*cp == 0) - { - vec_free (nvp->name); - vec_free (v); - goto error; - } - vec_add1 (v, 0); - nvp->value = v; - vec_add1 (nvps, nvp); - while (*cp && *cp != ',' && *cp != '}') - cp++; - if (*cp == 0) - { - vec_free (nvp->name); - vec_free (nvp->value); - goto error; - } - else if (*cp == '}') - state = STATE_START; - else - { - cp++; - state = STATE_READ_NAME; - } - nvp = 0; - goto again; - } - } - -done: - return (ht); -} - -/* - * fd.io coding-style-patch-verification: ON - * - * Local Variables: - * eval: (c-set-style "gnu") - * End: - */ |