elog_samples.c

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/*
 * Copyright (c) 2016 Cisco 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 <vlib/vlib.h>
#include <vppinfra/elog.h>

static inline void elog_four_int_sample (u32 *data)
{
  ELOG_TYPE_DECLARE(e) = 
    {
      .format = "four int: first %d second %d third %d fourth %d",
      .format_args = "i4i4i4i4",
    };
  struct { u32 data[4];} * ed;
  ed = ELOG_DATA (&vlib_global_main.elog_main, e);
  ed->data[0] = data[0];
  ed->data[1] = data[1];
  ed->data[2] = data[2];
  ed->data[3] = data[3];
}

static inline void elog_four_int_track_sample (u32 *data)
{
  ELOG_TYPE_DECLARE(e) = 
    {
      .format = "four_int_track: first %d second %d third %d fourth %d",
      .format_args = "i4i4i4i4",
    };
  struct { u32 data[4];} * ed;
  ELOG_TRACK(sample_track);
  ed = ELOG_TRACK_DATA (&vlib_global_main.elog_main, e, sample_track);
  ed->data[0] = data[0];
  ed->data[1] = data[1];
  ed->data[2] = data[2];
  ed->data[3] = data[3];
}

static inline void elog_enum_sample (u8 which)
{
  ELOG_TYPE_DECLARE (e) = 
    {
      .format = "my enum: %s",
      .format_args = "t1",
      .n_enum_strings = 2,
      .enum_strings = 
      {
        "string 1",
        "string 2", 
      },
    };
  struct { u8 which;} * ed;
  ed = ELOG_DATA (&vlib_global_main.elog_main, e);
  ed->which = which;
}

static inline void elog_one_datum_sample (u32 data)
{
  ELOG_TYPE_DECLARE (e) = 
    {
      .format = "one datum: %d",
      .format_args = "i4",
    };
  
  elog (&vlib_global_main.elog_main, &e, data);
}

static clib_error_t *
test_elog_command_fn (vlib_main_t * vm,
                 unformat_input_t * input,
                 vlib_cli_command_t * cmd)
{
  int i;
  u32 samples[4];

  for (i = 0; i < 10; i++)
    {
      samples[0] = i;
      samples[1] = i+1;
      samples[2] = i+2;
      samples[3] = i+3;

      elog_four_int_sample (samples);
      elog_four_int_track_sample (samples);
      elog_enum_sample (0);
      elog_enum_sample (1);
      elog_one_datum_sample (i);
    }

  return 0;
}

VLIB_CLI_COMMAND (test_elog_command, static) = {
  .path = "test elog sample",
  .short_help = "test elog sample",
  .function = test_elog_command_fn,
};