4 * Copyright (C) 2010 Red Hat Inc.
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 error_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;
149 static const char *progname;
152 * Set the program name for error_print_loc().
154 static void error_set_progname(const char *argv0)
156 const char *p = strrchr(argv0, '/');
157 progname = p ? p + 1 : argv0;
160 const char *error_get_progname(void)
166 * Print current location to current monitor if we have one, else to stderr.
168 static void print_loc(void)
170 const char *sep = "";
172 const char *const *argp;
174 if (!cur_mon && progname) {
175 fprintf(stderr, "%s:", progname);
178 switch (cur_loc->kind) {
181 for (i = 0; i < cur_loc->num; i++) {
182 error_printf("%s%s", sep, argp[i]);
188 error_printf("%s:", (const char *)cur_loc->ptr);
190 error_printf("%d:", cur_loc->num);
195 error_printf("%s", sep);
200 * Print a message to current monitor if we have one, else to stderr.
201 * @report_type is the type of message: error, warning or informational.
202 * Format arguments like vsprintf(). The resulting message should be
203 * a single phrase, with no newline or trailing punctuation.
204 * Prepend the current location and append a newline.
206 static void vreport(report_type type, const char *fmt, va_list ap)
211 if (error_with_timestamp && !cur_mon) {
212 g_get_current_time(&tv);
213 timestr = g_time_val_to_iso8601(&tv);
214 error_printf("%s ", timestr);
218 /* Only prepend guest name if -msg guest-name and -name guest=... are set */
219 if (error_with_guestname && error_guest_name && !cur_mon) {
220 error_printf("%s ", error_guest_name);
226 case REPORT_TYPE_ERROR:
228 case REPORT_TYPE_WARNING:
229 error_printf("warning: ");
231 case REPORT_TYPE_INFO:
232 error_printf("info: ");
236 error_vprintf(fmt, ap);
241 * Print an error message to current monitor if we have one, else to stderr.
242 * Format arguments like vsprintf(). The resulting message should be
243 * a single phrase, with no newline or trailing punctuation.
244 * Prepend the current location and append a newline.
245 * It's wrong to call this in a QMP monitor. Use error_setg() there.
247 void error_vreport(const char *fmt, va_list ap)
249 vreport(REPORT_TYPE_ERROR, fmt, ap);
253 * Print a warning message to current monitor if we have one, else to stderr.
254 * Format arguments like vsprintf(). The resulting message should be
255 * a single phrase, with no newline or trailing punctuation.
256 * Prepend the current location and append a newline.
258 void warn_vreport(const char *fmt, va_list ap)
260 vreport(REPORT_TYPE_WARNING, fmt, ap);
264 * Print an information message to current monitor if we have one, else to
266 * Format arguments like vsprintf(). The resulting message should be
267 * a single phrase, with no newline or trailing punctuation.
268 * Prepend the current location and append a newline.
270 void info_vreport(const char *fmt, va_list ap)
272 vreport(REPORT_TYPE_INFO, fmt, ap);
276 * Print an error message to current monitor if we have one, else to stderr.
277 * Format arguments like sprintf(). The resulting message should be
278 * a single phrase, with no newline or trailing punctuation.
279 * Prepend the current location and append a newline.
280 * It's wrong to call this in a QMP monitor. Use error_setg() there.
282 void error_report(const char *fmt, ...)
287 vreport(REPORT_TYPE_ERROR, fmt, ap);
292 * Print a warning message to current monitor if we have one, else to stderr.
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 warn_report(const char *fmt, ...)
302 vreport(REPORT_TYPE_WARNING, fmt, ap);
307 * Print an information message to current monitor if we have one, else to
309 * Format arguments like sprintf(). The resulting message should be a
310 * single phrase, with no newline or trailing punctuation.
311 * Prepend the current location and append a newline.
313 void info_report(const char *fmt, ...)
318 vreport(REPORT_TYPE_INFO, fmt, ap);
323 * Like error_report(), except print just once.
324 * If *printed is false, print the message, and flip *printed to true.
325 * Return whether the message was printed.
327 bool error_report_once_cond(bool *printed, const char *fmt, ...)
337 vreport(REPORT_TYPE_ERROR, fmt, ap);
343 * Like warn_report(), except print just once.
344 * If *printed is false, print the message, and flip *printed to true.
345 * Return whether the message was printed.
347 bool warn_report_once_cond(bool *printed, const char *fmt, ...)
357 vreport(REPORT_TYPE_WARNING, fmt, ap);
362 static char *qemu_glog_domains;
364 static void qemu_log_func(const gchar *log_domain,
365 GLogLevelFlags log_level,
366 const gchar *message,
369 switch (log_level & G_LOG_LEVEL_MASK) {
370 case G_LOG_LEVEL_DEBUG:
371 case G_LOG_LEVEL_INFO:
373 * Use same G_MESSAGES_DEBUG logic as glib to enable/disable debug
376 if (qemu_glog_domains == NULL) {
379 if (strcmp(qemu_glog_domains, "all") != 0 &&
380 (log_domain == NULL || !strstr(qemu_glog_domains, log_domain))) {
384 case G_LOG_LEVEL_MESSAGE:
385 info_report("%s%s%s",
386 log_domain ?: "", log_domain ? ": " : "", message);
389 case G_LOG_LEVEL_WARNING:
390 warn_report("%s%s%s",
391 log_domain ?: "", log_domain ? ": " : "", message);
393 case G_LOG_LEVEL_CRITICAL:
394 case G_LOG_LEVEL_ERROR:
395 error_report("%s%s%s",
396 log_domain ?: "", log_domain ? ": " : "", message);
401 void error_init(const char *argv0)
403 /* Set the program name for error_print_loc(). */
404 error_set_progname(argv0);
407 * This sets up glib logging so libraries using it also print their logs
408 * through error_report(), warn_report(), info_report().
410 g_log_set_default_handler(qemu_log_func, NULL);
411 g_warn_if_fail(qemu_glog_domains == NULL);
412 qemu_glog_domains = g_strdup(g_getenv("G_MESSAGES_DEBUG"));