#ifndef _PROBE_EVENT_H
  #define _PROBE_EVENT_H

  #include <stdbool.h>

  #include "strlist.h"

  #include "strfilter.h"

  extern bool probe_event_dry_run;

  /* kprobe-tracer tracing point */

  struct probe_trace_point {

  	char		*symbol;	/* Base symbol */

  	char		*module;	/* Module name */

  	unsigned long	offset;		/* Offset from symbol */
  	bool		retprobe;	/* Return probe flag */
  };

  /* probe-tracer tracing argument referencing offset */
  struct probe_trace_arg_ref {
  	struct probe_trace_arg_ref	*next;	/* Next reference */

  	long				offset;	/* Offset value */
  };
  
  /* kprobe-tracer tracing argument */

  struct probe_trace_arg {

  	char				*name;	/* Argument name */
  	char				*value;	/* Base value */

  	char				*type;	/* Type name */

  	struct probe_trace_arg_ref	*ref;	/* Referencing offset */

  };
  
  /* kprobe-tracer tracing event (point + arg) */

  struct probe_trace_event {

  	char				*event;	/* Event name */
  	char				*group;	/* Group name */

  	struct probe_trace_point	point;	/* Trace point */

  	int				nargs;	/* Number of args */

  	struct probe_trace_arg		*args;	/* Arguments */

  };
  
  /* Perf probe probing point */
  struct perf_probe_point {
  	char		*file;		/* File path */
  	char		*function;	/* Function name */
  	int		line;		/* Line number */

  	bool		retprobe;	/* Return probe flag */

  	char		*lazy_line;	/* Lazy matching pattern */
  	unsigned long	offset;		/* Offset from function entry */

  };

  /* Perf probe probing argument field chain */
  struct perf_probe_arg_field {
  	struct perf_probe_arg_field	*next;	/* Next field */
  	char				*name;	/* Name of the field */

  	long				index;	/* Array index number */

  	bool				ref;	/* Referencing flag */
  };

  /* Perf probe probing argument */
  struct perf_probe_arg {

  	char				*name;	/* Argument name */

  	char				*var;	/* Variable name */

  	char				*type;	/* Type name */

  	struct perf_probe_arg_field	*field;	/* Structure fields */

  };
  
  /* Perf probe probing event (point + arg) */
  struct perf_probe_event {
  	char			*event;	/* Event name */
  	char			*group;	/* Group name */
  	struct perf_probe_point	point;	/* Probe point */
  	int			nargs;	/* Number of arguments */
  	struct perf_probe_arg	*args;	/* Arguments */
  };
  
  
  /* Line number container */
  struct line_node {
  	struct list_head	list;

  	int			line;

  };
  
  /* Line range */
  struct line_range {
  	char			*file;		/* File name */
  	char			*function;	/* Function name */

  	int			start;		/* Start line number */
  	int			end;		/* End line number */

  	int			offset;		/* Start line offset */
  	char			*path;		/* Real path name */

  	char			*comp_dir;	/* Compile directory */

  	struct list_head	line_list;	/* Visible lines */
  };

  /* List of variables */
  struct variable_list {
  	struct probe_trace_point	point;	/* Actual probepoint */
  	struct strlist			*vars;	/* Available variables */
  };

  /* Command string to events */

  extern int parse_perf_probe_command(const char *cmd,
  				    struct perf_probe_event *pev);

  
  /* Events to command string */
  extern char *synthesize_perf_probe_command(struct perf_probe_event *pev);

  extern char *synthesize_probe_trace_command(struct probe_trace_event *tev);

  extern int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf,
  				     size_t len);

  
  /* Check the perf_probe_event needs debuginfo */
  extern bool perf_probe_event_need_dwarf(struct perf_probe_event *pev);

  /* Release event contents */
  extern void clear_perf_probe_event(struct perf_probe_event *pev);

  
  /* Command string to line-range */

  extern int parse_line_range_desc(const char *cmd, struct line_range *lr);

  /* Internal use: Return kernel/module path */
  extern const char *kernel_get_module_path(const char *module);

  extern int add_perf_probe_events(struct perf_probe_event *pevs, int npevs,

  				 int max_probe_points, const char *module,
  				 bool force_add);

  extern int del_perf_probe_events(struct strlist *dellist);
  extern int show_perf_probe_events(void);

  extern int show_line_range(struct line_range *lr, const char *module);

  extern int show_available_vars(struct perf_probe_event *pevs, int npevs,

  			       int max_probe_points, const char *module,

  			       struct strfilter *filter, bool externs);

  extern int show_available_funcs(const char *module, struct strfilter *filter);

  /* Maximum index number of event-name postfix */
  #define MAX_EVENT_INDEX	1024

  #endif /*_PROBE_EVENT_H */