vlib/vlib/unix/cj.h

   1 /*
   2  *------------------------------------------------------------------
   3  * cj.h
   4  *
   5  * Copyright (c) 2013 Cisco and/or its affiliates.
   6  * Licensed under the Apache License, Version 2.0 (the "License");
   7  * you may not use this file except in compliance with the License.
   8  * You may obtain a copy of the License at:
   9  *
  10  *     http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing, software
  13  * distributed under the License is distributed on an "AS IS" BASIS,
  14  * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  15  * See the License for the specific language governing permissions and
  16  * limitations under the License.
  17  *------------------------------------------------------------------
  18  */
  19
  20 #ifndef __included_cj_h__
  21 #define __included_cj_h__
  22
  23 typedef struct {
  24   f64 time;
  25   u32 cpu;
  26   u32 type;
  27   u64 data[2];
  28 } cj_record_t;
  29
  30 typedef struct {
  31   volatile u64 tail;
  32   cj_record_t * records;
  33   u32 num_records;
  34   volatile u32 enable;
  35
  36   vlib_main_t * vlib_main;
  37 } cj_main_t;
  38
  39 void cj_log (u32 type, void * data0, void * data1);
  40
  41 /*
  42  * Supply in application main, so we can log from any library...
  43  * Declare a weak reference in the library, off you go.
  44  */
  45
  46 #define DECLARE_CJ_GLOBAL_LOG                                   \
  47 void cj_global_log (unsigned type, void * data0, void * data1)  \
  48   __attribute__ ((weak));                                       \
  49                                                                 \
  50 unsigned __cj_type;                                             \
  51 void * __cj_data0;                                              \
  52 void * __cj_data1;                                              \
  53                                                                 \
  54 void                                                            \
  55 cj_global_log (unsigned type, void * data0, void * data1)       \
  56 {                                                               \
  57   __cj_type = type;                                             \
  58   __cj_data0 = data0;                                           \
  59   __cj_data1 = data1;                                           \
  60 }
  61
  62 #define CJ_GLOBAL_LOG_PROTOTYPE
  63 void cj_global_log (unsigned type, void * data0, void * data1)  \
  64   __attribute__ ((weak));                                       \
  65
  66 void cj_stop(void);
  67
  68 #endif /* __included_cj_h__ */