src/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 {
  25   f64 time;
  26   u32 cpu;
  27   u32 type;
  28   u64 data[2];
  29 } cj_record_t;
  30
  31 typedef struct
  32 {
  33   volatile u64 tail;
  34   cj_record_t *records;
  35   u32 num_records;
  36   volatile u32 enable;
  37
  38   vlib_main_t *vlib_main;
  39 } cj_main_t;
  40
  41 void cj_log (u32 type, void *data0, void *data1);
  42
  43 /*
  44  * Supply in application main, so we can log from any library...
  45  * Declare a weak reference in the library, off you go.
  46  */
  47
  48 #define DECLARE_CJ_GLOBAL_LOG                                   \
  49 void cj_global_log (unsigned type, void * data0, void * data1)  \
  50   __attribute__ ((weak));                                       \
  51                                                                 \
  52 unsigned __cj_type;                                             \
  53 void * __cj_data0;                                              \
  54 void * __cj_data1;                                              \
  55                                                                 \
  56 void                                                            \
  57 cj_global_log (unsigned type, void * data0, void * data1)       \
  58 {                                                               \
  59   __cj_type = type;                                             \
  60   __cj_data0 = data0;                                           \
  61   __cj_data1 = data1;                                           \
  62 }
  63
  64 #define CJ_GLOBAL_LOG_PROTOTYPE
  65 void
  66 cj_global_log (unsigned type, void *data0, void *data1)
  67 __attribute__ ((weak));
  68
  69 void cj_stop (void);
  70
  71 #endif /* __included_cj_h__ */
  72
  73 /*
  74  * fd.io coding-style-patch-verification: ON
  75  *
  76  * Local Variables:
  77  * eval: (c-set-style "gnu")
  78  * End:
  79  */