#ifndef __PERF_MACHINE_H
  #define __PERF_MACHINE_H
  
  #include <sys/types.h>

  #include <linux/rbtree.h>
  #include "map.h"

  #include "dso.h"

  #include "event.h"

  struct addr_location;

  struct branch_stack;
  struct perf_evsel;
  struct perf_sample;
  struct symbol;

  struct thread;

  union perf_event;

  /* Native host kernel uses -1 as pid index in machine */
  #define	HOST_KERNEL_ID			(-1)
  #define	DEFAULT_GUEST_KERNEL_ID		(0)

  extern const char *ref_reloc_sym_names[];

  struct vdso_info;

  struct machine {
  	struct rb_node	  rb_node;
  	pid_t		  pid;
  	u16		  id_hdr_size;

  	bool		  comm_exec;

  	bool		  kptr_restrict_warned;

  	char		  *root_dir;
  	struct rb_root	  threads;

  	pthread_rwlock_t  threads_lock;

  	unsigned int	  nr_threads;

  	struct list_head  dead_threads;
  	struct thread	  *last_match;

  	struct vdso_info  *vdso_info;

  	struct perf_env   *env;

  	struct dsos	  dsos;

  	struct map_groups kmaps;
  	struct map	  *vmlinux_maps[MAP__NR_TYPES];

  	u64		  kernel_start;

  	pid_t		  *current_tid;

  	union { /* Tool specific area */
  		void	  *priv;
  		u64	  db_id;
  	};

  };
  
  static inline

  struct map *__machine__kernel_map(struct machine *machine, enum map_type type)

  {
  	return machine->vmlinux_maps[type];
  }

  static inline
  struct map *machine__kernel_map(struct machine *machine)
  {
  	return __machine__kernel_map(machine, MAP__FUNCTION);
  }

  int machine__get_kernel_start(struct machine *machine);
  
  static inline u64 machine__kernel_start(struct machine *machine)
  {
  	if (!machine->kernel_start)
  		machine__get_kernel_start(machine);
  	return machine->kernel_start;
  }
  
  static inline bool machine__kernel_ip(struct machine *machine, u64 ip)
  {
  	u64 kernel_start = machine__kernel_start(machine);
  
  	return ip >= kernel_start;
  }

  struct thread *machine__find_thread(struct machine *machine, pid_t pid,
  				    pid_t tid);

  struct comm *machine__thread_exec_comm(struct machine *machine,
  				       struct thread *thread);

  int machine__process_comm_event(struct machine *machine, union perf_event *event,
  				struct perf_sample *sample);
  int machine__process_exit_event(struct machine *machine, union perf_event *event,
  				struct perf_sample *sample);
  int machine__process_fork_event(struct machine *machine, union perf_event *event,
  				struct perf_sample *sample);
  int machine__process_lost_event(struct machine *machine, union perf_event *event,
  				struct perf_sample *sample);

  int machine__process_lost_samples_event(struct machine *machine, union perf_event *event,
  					struct perf_sample *sample);

  int machine__process_aux_event(struct machine *machine,
  			       union perf_event *event);

  int machine__process_itrace_start_event(struct machine *machine,
  					union perf_event *event);

  int machine__process_switch_event(struct machine *machine,

  				  union perf_event *event);

  int machine__process_namespaces_event(struct machine *machine,
  				      union perf_event *event,
  				      struct perf_sample *sample);

  int machine__process_mmap_event(struct machine *machine, union perf_event *event,
  				struct perf_sample *sample);
  int machine__process_mmap2_event(struct machine *machine, union perf_event *event,
  				 struct perf_sample *sample);
  int machine__process_event(struct machine *machine, union perf_event *event,
  				struct perf_sample *sample);

  typedef void (*machine__process_t)(struct machine *machine, void *data);

  struct machines {
  	struct machine host;
  	struct rb_root guests;
  };
  
  void machines__init(struct machines *machines);
  void machines__exit(struct machines *machines);
  
  void machines__process_guests(struct machines *machines,
  			      machine__process_t process, void *data);

  struct machine *machines__add(struct machines *machines, pid_t pid,

  			      const char *root_dir);

  struct machine *machines__find_host(struct machines *machines);
  struct machine *machines__find(struct machines *machines, pid_t pid);
  struct machine *machines__findnew(struct machines *machines, pid_t pid);

  void machines__set_id_hdr_size(struct machines *machines, u16 id_hdr_size);

  char *machine__mmap_name(struct machine *machine, char *bf, size_t size);

  void machines__set_comm_exec(struct machines *machines, bool comm_exec);

  struct machine *machine__new_host(void);

  struct machine *machine__new_kallsyms(void);

  int machine__init(struct machine *machine, const char *root_dir, pid_t pid);
  void machine__exit(struct machine *machine);

  void machine__delete_threads(struct machine *machine);

  void machine__delete(struct machine *machine);

  void machine__remove_thread(struct machine *machine, struct thread *th);

  struct branch_info *sample__resolve_bstack(struct perf_sample *sample,
  					   struct addr_location *al);

  struct mem_info *sample__resolve_mem(struct perf_sample *sample,
  				     struct addr_location *al);

  
  struct callchain_cursor;

  int thread__resolve_callchain(struct thread *thread,

  			      struct callchain_cursor *cursor,

  			      struct perf_evsel *evsel,
  			      struct perf_sample *sample,
  			      struct symbol **parent,
  			      struct addr_location *root_al,
  			      int max_stack);

  
  /*
   * Default guest kernel is defined by parameter --guestkallsyms
   * and --guestmodules
   */
  static inline bool machine__is_default_guest(struct machine *machine)
  {
  	return machine ? machine->pid == DEFAULT_GUEST_KERNEL_ID : false;
  }
  
  static inline bool machine__is_host(struct machine *machine)
  {
  	return machine ? machine->pid == HOST_KERNEL_ID : false;
  }

  struct thread *__machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);
  struct thread *machine__findnew_thread(struct machine *machine, pid_t pid, pid_t tid);

  struct dso *machine__findnew_dso(struct machine *machine, const char *filename);

  size_t machine__fprintf(struct machine *machine, FILE *fp);
  
  static inline
  struct symbol *machine__find_kernel_symbol(struct machine *machine,
  					   enum map_type type, u64 addr,

  					   struct map **mapp)

  {

  	return map_groups__find_symbol(&machine->kmaps, type, addr, mapp);

  }
  
  static inline

  struct symbol *machine__find_kernel_symbol_by_name(struct machine *machine,
  						   enum map_type type, const char *name,

  						   struct map **mapp)

  {

  	return map_groups__find_symbol_by_name(&machine->kmaps, type, name, mapp);

  }
  
  static inline

  struct symbol *machine__find_kernel_function(struct machine *machine, u64 addr,

  					     struct map **mapp)

  {
  	return machine__find_kernel_symbol(machine, MAP__FUNCTION, addr,

  					   mapp);

  }
  
  static inline
  struct symbol *machine__find_kernel_function_by_name(struct machine *machine,
  						     const char *name,

  						     struct map **mapp)

  {

  	return map_groups__find_function_by_name(&machine->kmaps, name, mapp);

  }

  struct map *machine__findnew_module_map(struct machine *machine, u64 start,
  					const char *filename);

  int arch__fix_module_text_start(u64 *start, const char *name);

  int __machine__load_kallsyms(struct machine *machine, const char *filename,

  			     enum map_type type, bool no_kcore);

  int machine__load_kallsyms(struct machine *machine, const char *filename,

  			   enum map_type type);
  int machine__load_vmlinux_path(struct machine *machine, enum map_type type);

  size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp,
  				     bool (skip)(struct dso *dso, int parm), int parm);

  size_t machines__fprintf_dsos(struct machines *machines, FILE *fp);
  size_t machines__fprintf_dsos_buildid(struct machines *machines, FILE *fp,

  				     bool (skip)(struct dso *dso, int parm), int parm);

  
  void machine__destroy_kernel_maps(struct machine *machine);
  int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel);
  int machine__create_kernel_maps(struct machine *machine);

  int machines__create_kernel_maps(struct machines *machines, pid_t pid);
  int machines__create_guest_kernel_maps(struct machines *machines);
  void machines__destroy_kernel_maps(struct machines *machines);

  
  size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp);

  int machine__for_each_thread(struct machine *machine,
  			     int (*fn)(struct thread *thread, void *p),
  			     void *priv);

  int machines__for_each_thread(struct machines *machines,
  			      int (*fn)(struct thread *thread, void *p),
  			      void *priv);

  int __machine__synthesize_threads(struct machine *machine, struct perf_tool *tool,

  				  struct target *target, struct thread_map *threads,

  				  perf_event__handler_t process, bool data_mmap,
  				  unsigned int proc_map_timeout);

  static inline

  int machine__synthesize_threads(struct machine *machine, struct target *target,

  				struct thread_map *threads, bool data_mmap,
  				unsigned int proc_map_timeout)

  {
  	return __machine__synthesize_threads(machine, NULL, target, threads,

  					     perf_event__process, data_mmap,
  					     proc_map_timeout);

  }

  pid_t machine__get_current_tid(struct machine *machine, int cpu);
  int machine__set_current_tid(struct machine *machine, int cpu, pid_t pid,
  			     pid_t tid);

  /*
   * For use with libtraceevent's pevent_set_function_resolver()
   */
  char *machine__resolve_kernel_addr(void *vmachine, unsigned long long *addrp, char **modp);

  #endif /* __PERF_MACHINE_H */