qemu-error.c

   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 #include <stdio.h>
  14 #include "monitor.h"
  15 #include "sysemu.h"
  16
  17 /*
  18  * Print to current monitor if we have one, else to stderr.
  19  * TODO should return int, so callers can calculate width, but that
  20  * requires surgery to monitor_vprintf().  Left for another day.
  21  */
  22 void error_vprintf(const char *fmt, va_list ap)
  23 {
  24     if (cur_mon) {
  25         monitor_vprintf(cur_mon, fmt, ap);
  26     } else {
  27         vfprintf(stderr, fmt, ap);
  28     }
  29 }
  30
  31 /*
  32  * Print to current monitor if we have one, else to stderr.
  33  * TODO just like error_vprintf()
  34  */
  35 void error_printf(const char *fmt, ...)
  36 {
  37     va_list ap;
  38
  39     va_start(ap, fmt);
  40     error_vprintf(fmt, ap);
  41     va_end(ap);
  42 }
  43
  44 /*
  45  * Print an error message to current monitor if we have one, else to stderr.
  46  * Appends a newline to the message.
  47  * It's wrong to call this in a QMP monitor.  Use qemu_error_new() there.
  48  */
  49 void error_report(const char *fmt, ...)
  50 {
  51     va_list ap;
  52
  53     va_start(ap, fmt);
  54     error_vprintf(fmt, ap);
  55     va_end(ap);
  56     error_printf("\n");
  57 }
  58
  59 void qemu_error_internal(const char *file, int linenr, const char *func,
  60                          const char *fmt, ...)
  61 {
  62     va_list va;
  63     QError *qerror;
  64
  65     va_start(va, fmt);
  66     qerror = qerror_from_info(file, linenr, func, fmt, &va);
  67     va_end(va);
  68
  69     if (cur_mon) {
  70         monitor_set_error(cur_mon, qerror);
  71     } else {
  72         qerror_print(qerror);
  73         QDECREF(qerror);
  74     }
  75 }