text: // -*-Mode: C++;-*- // technically C99
  
  // * BeginRiceCopyright *****************************************************
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  #ifndef __PERF_SKID_H__
  #define __PERF_SKID_H__
  
  // constants of precise_ip (see the man page)
  #define PERF_EVENT_AUTODETECT_SKID       4
  #define PERF_EVENT_SKID_ZERO_REQUIRED    3
  #define PERF_EVENT_SKID_ZERO_REQUESTED   2
  #define PERF_EVENT_SKID_CONSTANT         1
  #define PERF_EVENT_SKID_ARBITRARY        0
  #define PERF_EVENT_SKID_ERROR           -1
  
  
  // parse the event into event_name and the type of precise_ip
  //  the name of the event excludes the precise ip suffix
  // returns:
  //  PERF_EVENT_AUTODETECT_SKID       
  //  PERF_EVENT_SKID_ZERO_REQUIRED    
  //  PERF_EVENT_SKID_ZERO_REQUESTED  
  //  PERF_EVENT_SKID_CONSTANT         
  //  PERF_EVENT_SKID_ARBITRARY        
  //  PERF_EVENT_SKID_NONE    
  //  PERF_EVENT_SKID_ERROR        
  int
  perf_skid_parse_event(const char *event_string, char **event_string_without_skidmarks);
  
  int
  perf_skid_set_max_precise_ip(struct perf_event_attr *attr);
  
  u64
  perf_skid_get_precise_ip(struct perf_event_attr *attr);
  #endif
  