#ifndef __GDB_MACOSX_NAT_EXCTHREAD_H__
#define __GDB_MACOSX_NAT_EXCTHREAD_H__

#include "defs.h"
#include "macosx-nat-mutils.h"
#include "macosx-nat-threads.h"

#include <sys/wait.h>

struct macosx_exception_info
{
  exception_mask_t masks[EXC_TYPES_COUNT];
  mach_port_t ports[EXC_TYPES_COUNT];
  exception_behavior_t behaviors[EXC_TYPES_COUNT];
  thread_state_flavor_t flavors[EXC_TYPES_COUNT];
  mach_msg_type_number_t count;
};
typedef struct macosx_exception_info macosx_exception_info;

struct macosx_exception_thread_status
{
  gdb_thread_t exception_thread;

  int transmit_from_fd;  /* This pipe is used to transmit data from the */
  int receive_from_fd;   /* exception thread to the main thread.  */
  int transmit_to_fd;    /* This pipe is used to wake up the exception */
  int receive_to_fd;     /* thread. 0 means continue, 1 exit.  */
  int error_transmit_fd; /* The exception thread uses the to signal an error */
  int error_receive_fd;  /* to the main thread.  */

  mach_port_t inferior_exception_port;
  task_t task;
  macosx_exception_info saved_exceptions;
  macosx_exception_info saved_exceptions_step;
  int saved_exceptions_stepping;
};
typedef struct macosx_exception_thread_status macosx_exception_thread_status;

struct macosx_exception_thread_message
{
  task_t task_port;
  thread_t thread_port;
  exception_type_t exception_type;
  exception_data_t exception_data;
  mach_msg_type_number_t data_count;
};
typedef struct macosx_exception_thread_message
  macosx_exception_thread_message;

void macosx_exception_thread_init (macosx_exception_thread_status *s);

void macosx_exception_thread_create (macosx_exception_thread_status *s,
                                     task_t task);
void macosx_exception_thread_destroy (macosx_exception_thread_status *s);

#endif /* __GDB_MACOSX_NAT_EXCTHREAD_H__ */