4 * Copyright (C) 2010 Red Hat Inc.
7 * Markus Armbruster <armbru@redhat.com>,
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.
13 #include "qemu/osdep.h"
14 #include "monitor/monitor.h"
15 #include "qemu/error-report.h"
18 * @report_type is the type of message: error, warning or
27 /* Prepend timestamp to messages */
28 bool message_with_timestamp
;
29 bool error_with_guestname
;
30 const char *error_guest_name
;
32 int error_printf(const char *fmt
, ...)
38 ret
= error_vprintf(fmt
, ap
);
43 int error_printf_unless_qmp(const char *fmt
, ...)
49 ret
= error_vprintf_unless_qmp(fmt
, ap
);
54 static Location std_loc
= {
57 static Location
*cur_loc
= &std_loc
;
60 * Push location saved in LOC onto the location stack, return it.
61 * The top of that stack is the current location.
62 * Needs a matching loc_pop().
64 Location
*loc_push_restore(Location
*loc
)
73 * Initialize *LOC to "nowhere", push it onto the location stack.
74 * The top of that stack is the current location.
75 * Needs a matching loc_pop().
78 Location
*loc_push_none(Location
*loc
)
82 return loc_push_restore(loc
);
86 * Pop the location stack.
87 * LOC must be the current location, i.e. the top of the stack.
89 Location
*loc_pop(Location
*loc
)
91 assert(cur_loc
== loc
&& loc
->prev
);
98 * Save the current location in LOC, return LOC.
100 Location
*loc_save(Location
*loc
)
108 * Change the current location to the one saved in LOC.
110 void loc_restore(Location
*loc
)
112 Location
*prev
= cur_loc
->prev
;
115 cur_loc
->prev
= prev
;
119 * Change the current location to "nowhere in particular".
121 void loc_set_none(void)
123 cur_loc
->kind
= LOC_NONE
;
127 * Change the current location to argument ARGV[IDX..IDX+CNT-1].
129 void loc_set_cmdline(char **argv
, int idx
, int cnt
)
131 cur_loc
->kind
= LOC_CMDLINE
;
133 cur_loc
->ptr
= argv
+ idx
;
137 * Change the current location to file FNAME, line LNO.
139 void loc_set_file(const char *fname
, int lno
)
141 assert (fname
|| cur_loc
->kind
== LOC_FILE
);
142 cur_loc
->kind
= LOC_FILE
;
145 cur_loc
->ptr
= fname
;
150 * Print current location to current monitor if we have one, else to stderr.
152 static void print_loc(void)
154 const char *sep
= "";
156 const char *const *argp
;
158 if (!monitor_cur() && g_get_prgname()) {
159 fprintf(stderr
, "%s:", g_get_prgname());
162 switch (cur_loc
->kind
) {
165 for (i
= 0; i
< cur_loc
->num
; i
++) {
166 error_printf("%s%s", sep
, argp
[i
]);
172 error_printf("%s:", (const char *)cur_loc
->ptr
);
174 error_printf("%d:", cur_loc
->num
);
179 error_printf("%s", sep
);
184 * Print a message to current monitor if we have one, else to stderr.
185 * @report_type is the type of message: error, warning or informational.
186 * Format arguments like vsprintf(). The resulting message should be
187 * a single phrase, with no newline or trailing punctuation.
188 * Prepend the current location and append a newline.
190 static void vreport(report_type type
, const char *fmt
, va_list ap
)
195 if (message_with_timestamp
&& !monitor_cur()) {
196 g_get_current_time(&tv
);
197 timestr
= g_time_val_to_iso8601(&tv
);
198 error_printf("%s ", timestr
);
202 /* Only prepend guest name if -msg guest-name and -name guest=... are set */
203 if (error_with_guestname
&& error_guest_name
&& !monitor_cur()) {
204 error_printf("%s ", error_guest_name
);
210 case REPORT_TYPE_ERROR
:
212 case REPORT_TYPE_WARNING
:
213 error_printf("warning: ");
215 case REPORT_TYPE_INFO
:
216 error_printf("info: ");
220 error_vprintf(fmt
, ap
);
225 * Print an error message to current monitor if we have one, else to stderr.
226 * Format arguments like vsprintf(). The resulting message should be
227 * a single phrase, with no newline or trailing punctuation.
228 * Prepend the current location and append a newline.
229 * It's wrong to call this in a QMP monitor. Use error_setg() there.
231 void error_vreport(const char *fmt
, va_list ap
)
233 vreport(REPORT_TYPE_ERROR
, fmt
, ap
);
237 * Print a warning message to current monitor if we have one, else to stderr.
238 * Format arguments like vsprintf(). The resulting message should be
239 * a single phrase, with no newline or trailing punctuation.
240 * Prepend the current location and append a newline.
242 void warn_vreport(const char *fmt
, va_list ap
)
244 vreport(REPORT_TYPE_WARNING
, fmt
, ap
);
248 * Print an information message to current monitor if we have one, else to
250 * Format arguments like vsprintf(). The resulting message should be
251 * a single phrase, with no newline or trailing punctuation.
252 * Prepend the current location and append a newline.
254 void info_vreport(const char *fmt
, va_list ap
)
256 vreport(REPORT_TYPE_INFO
, fmt
, ap
);
260 * Print an error message to current monitor if we have one, else to stderr.
261 * Format arguments like sprintf(). The resulting message should be
262 * a single phrase, with no newline or trailing punctuation.
263 * Prepend the current location and append a newline.
264 * It's wrong to call this in a QMP monitor. Use error_setg() there.
266 void error_report(const char *fmt
, ...)
271 vreport(REPORT_TYPE_ERROR
, fmt
, ap
);
276 * Print a warning message to current monitor if we have one, else to stderr.
277 * Format arguments like sprintf(). The resulting message should be a
278 * single phrase, with no newline or trailing punctuation.
279 * Prepend the current location and append a newline.
281 void warn_report(const char *fmt
, ...)
286 vreport(REPORT_TYPE_WARNING
, fmt
, ap
);
291 * Print an information message to current monitor if we have one, else to
293 * Format arguments like sprintf(). The resulting message should be a
294 * single phrase, with no newline or trailing punctuation.
295 * Prepend the current location and append a newline.
297 void info_report(const char *fmt
, ...)
302 vreport(REPORT_TYPE_INFO
, fmt
, ap
);
307 * Like error_report(), except print just once.
308 * If *printed is false, print the message, and flip *printed to true.
309 * Return whether the message was printed.
311 bool error_report_once_cond(bool *printed
, const char *fmt
, ...)
321 vreport(REPORT_TYPE_ERROR
, fmt
, ap
);
327 * Like warn_report(), except print just once.
328 * If *printed is false, print the message, and flip *printed to true.
329 * Return whether the message was printed.
331 bool warn_report_once_cond(bool *printed
, const char *fmt
, ...)
341 vreport(REPORT_TYPE_WARNING
, fmt
, ap
);
346 static char *qemu_glog_domains
;
348 static void qemu_log_func(const gchar
*log_domain
,
349 GLogLevelFlags log_level
,
350 const gchar
*message
,
353 switch (log_level
& G_LOG_LEVEL_MASK
) {
354 case G_LOG_LEVEL_DEBUG
:
355 case G_LOG_LEVEL_INFO
:
357 * Use same G_MESSAGES_DEBUG logic as glib to enable/disable debug
360 if (qemu_glog_domains
== NULL
) {
363 if (strcmp(qemu_glog_domains
, "all") != 0 &&
364 (log_domain
== NULL
|| !strstr(qemu_glog_domains
, log_domain
))) {
368 case G_LOG_LEVEL_MESSAGE
:
369 info_report("%s%s%s",
370 log_domain
?: "", log_domain
? ": " : "", message
);
373 case G_LOG_LEVEL_WARNING
:
374 warn_report("%s%s%s",
375 log_domain
?: "", log_domain
? ": " : "", message
);
377 case G_LOG_LEVEL_CRITICAL
:
378 case G_LOG_LEVEL_ERROR
:
379 error_report("%s%s%s",
380 log_domain
?: "", log_domain
? ": " : "", message
);
385 void error_init(const char *argv0
)
387 const char *p
= strrchr(argv0
, '/');
389 /* Set the program name for error_print_loc(). */
390 g_set_prgname(p
? p
+ 1 : argv0
);
393 * This sets up glib logging so libraries using it also print their logs
394 * through error_report(), warn_report(), info_report().
396 g_log_set_default_handler(qemu_log_func
, NULL
);
397 g_warn_if_fail(qemu_glog_domains
== NULL
);
398 qemu_glog_domains
= g_strdup(g_getenv("G_MESSAGES_DEBUG"));