LXR qemu/include/qemu/error-report.h

   1/*
   2 * Error reporting
   3 *
   4 * Copyright (C) 2010 Red Hat Inc.
   5 *
   6 * Authors:
   7 *  Markus Armbruster <armbru@redhat.com>,
   8 *
   9 * This work is licensed under the terms of the GNU GPL, version 2 or later.
  10 * See the COPYING file in the top-level directory.
  11 */
  12
  13#ifndef QEMU_ERROR_REPORT_H
  14#define QEMU_ERROR_REPORT_H
  15
  16typedef struct Location {
  17    /* all members are private to qemu-error.c */
  18    enum { LOC_NONE, LOC_CMDLINE, LOC_FILE } kind;
  19    int num;
  20    const void *ptr;
  21    struct Location *prev;
  22} Location;
  23
  24Location *loc_push_restore(Location *loc);
  25Location *loc_push_none(Location *loc);
  26Location *loc_pop(Location *loc);
  27Location *loc_save(Location *loc);
  28void loc_restore(Location *loc);
  29void loc_set_none(void);
  30void loc_set_cmdline(char **argv, int idx, int cnt);
  31void loc_set_file(const char *fname, int lno);
  32
  33int error_vprintf(const char *fmt, va_list ap) G_GNUC_PRINTF(1, 0);
  34int error_printf(const char *fmt, ...) G_GNUC_PRINTF(1, 2);
  35
  36void error_vreport(const char *fmt, va_list ap) G_GNUC_PRINTF(1, 0);
  37void warn_vreport(const char *fmt, va_list ap) G_GNUC_PRINTF(1, 0);
  38void info_vreport(const char *fmt, va_list ap) G_GNUC_PRINTF(1, 0);
  39
  40void error_report(const char *fmt, ...) G_GNUC_PRINTF(1, 2);
  41void warn_report(const char *fmt, ...) G_GNUC_PRINTF(1, 2);
  42void info_report(const char *fmt, ...) G_GNUC_PRINTF(1, 2);
  43
  44bool error_report_once_cond(bool *printed, const char *fmt, ...)
  45    G_GNUC_PRINTF(2, 3);
  46bool warn_report_once_cond(bool *printed, const char *fmt, ...)
  47    G_GNUC_PRINTF(2, 3);
  48
  49void error_init(const char *argv0);
  50
  51/*
  52 * Similar to error_report(), except it prints the message just once.
  53 * Return true when it prints, false otherwise.
  54 */
  55#define error_report_once(fmt, ...)                     \
  56    ({                                                  \
  57        static bool print_once_;                        \
  58        error_report_once_cond(&print_once_,            \
  59                               fmt, ##__VA_ARGS__);     \
  60    })
  61
  62/*
  63 * Similar to warn_report(), except it prints the message just once.
  64 * Return true when it prints, false otherwise.
  65 */
  66#define warn_report_once(fmt, ...)                      \
  67    ({                                                  \
  68        static bool print_once_;                        \
  69        warn_report_once_cond(&print_once_,             \
  70                              fmt, ##__VA_ARGS__);      \
  71    })
  72
  73extern bool message_with_timestamp;
  74extern bool error_with_guestname;
  75extern const char *error_guest_name;
  76
  77#endif
  78