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;
30 int error_printf(const char *fmt, ...)
36 ret = error_vprintf(fmt, ap);
41 int error_printf_unless_qmp(const char *fmt, ...)
47 ret = error_vprintf_unless_qmp(fmt, ap);
52 static Location std_loc = {
55 static Location *cur_loc = &std_loc;
58 * Push location saved in LOC onto the location stack, return it.
59 * The top of that stack is the current location.
60 * Needs a matching loc_pop().
62 Location *loc_push_restore(Location *loc)
71 * Initialize *LOC to "nowhere", push it onto the location stack.
72 * The top of that stack is the current location.
73 * Needs a matching loc_pop().
76 Location *loc_push_none(Location *loc)
80 return loc_push_restore(loc);
84 * Pop the location stack.
85 * LOC must be the current location, i.e. the top of the stack.
87 Location *loc_pop(Location *loc)
89 assert(cur_loc == loc && loc->prev);
96 * Save the current location in LOC, return LOC.
98 Location *loc_save(Location *loc)
106 * Change the current location to the one saved in LOC.
108 void loc_restore(Location *loc)
110 Location *prev = cur_loc->prev;
113 cur_loc->prev = prev;
117 * Change the current location to "nowhere in particular".
119 void loc_set_none(void)
121 cur_loc->kind = LOC_NONE;
125 * Change the current location to argument ARGV[IDX..IDX+CNT-1].
127 void loc_set_cmdline(char **argv, int idx, int cnt)
129 cur_loc->kind = LOC_CMDLINE;
131 cur_loc->ptr = argv + idx;
135 * Change the current location to file FNAME, line LNO.
137 void loc_set_file(const char *fname, int lno)
139 assert (fname || cur_loc->kind == LOC_FILE);
140 cur_loc->kind = LOC_FILE;
143 cur_loc->ptr = fname;
147 static const char *progname;
150 * Set the program name for error_print_loc().
152 static void error_set_progname(const char *argv0)
154 const char *p = strrchr(argv0, '/');
155 progname = p ? p + 1 : argv0;
158 const char *error_get_progname(void)
164 * Print current location to current monitor if we have one, else to stderr.
166 static void print_loc(void)
168 const char *sep = "";
170 const char *const *argp;
172 if (!cur_mon && progname) {
173 fprintf(stderr, "%s:", progname);
176 switch (cur_loc->kind) {
179 for (i = 0; i < cur_loc->num; i++) {
180 error_printf("%s%s", sep, argp[i]);
186 error_printf("%s:", (const char *)cur_loc->ptr);
188 error_printf("%d:", cur_loc->num);
193 error_printf("%s", sep);
198 * Print a message to current monitor if we have one, else to stderr.
199 * @report_type is the type of message: error, warning or informational.
200 * Format arguments like vsprintf(). The resulting message should be
201 * a single phrase, with no newline or trailing punctuation.
202 * Prepend the current location and append a newline.
204 static void vreport(report_type type, const char *fmt, va_list ap)
209 if (error_with_timestamp && !cur_mon) {
210 g_get_current_time(&tv);
211 timestr = g_time_val_to_iso8601(&tv);
212 error_printf("%s ", timestr);
219 case REPORT_TYPE_ERROR:
221 case REPORT_TYPE_WARNING:
222 error_printf("warning: ");
224 case REPORT_TYPE_INFO:
225 error_printf("info: ");
229 error_vprintf(fmt, ap);
234 * Print an error message to current monitor if we have one, else to stderr.
235 * Format arguments like vsprintf(). The resulting message should be
236 * a single phrase, with no newline or trailing punctuation.
237 * Prepend the current location and append a newline.
238 * It's wrong to call this in a QMP monitor. Use error_setg() there.
240 void error_vreport(const char *fmt, va_list ap)
242 vreport(REPORT_TYPE_ERROR, fmt, ap);
246 * Print a warning message to current monitor if we have one, else to stderr.
247 * Format arguments like vsprintf(). The resulting message should be
248 * a single phrase, with no newline or trailing punctuation.
249 * Prepend the current location and append a newline.
251 void warn_vreport(const char *fmt, va_list ap)
253 vreport(REPORT_TYPE_WARNING, fmt, ap);
257 * Print an information message to current monitor if we have one, else to
259 * Format arguments like vsprintf(). The resulting message should be
260 * a single phrase, with no newline or trailing punctuation.
261 * Prepend the current location and append a newline.
263 void info_vreport(const char *fmt, va_list ap)
265 vreport(REPORT_TYPE_INFO, fmt, ap);
269 * Print an error message to current monitor if we have one, else to stderr.
270 * Format arguments like sprintf(). The resulting message should be
271 * a single phrase, with no newline or trailing punctuation.
272 * Prepend the current location and append a newline.
273 * It's wrong to call this in a QMP monitor. Use error_setg() there.
275 void error_report(const char *fmt, ...)
280 vreport(REPORT_TYPE_ERROR, fmt, ap);
285 * Print a warning message to current monitor if we have one, else to stderr.
286 * Format arguments like sprintf(). The resulting message should be a
287 * single phrase, with no newline or trailing punctuation.
288 * Prepend the current location and append a newline.
290 void warn_report(const char *fmt, ...)
295 vreport(REPORT_TYPE_WARNING, fmt, ap);
300 * Print an information message to current monitor if we have one, else to
302 * Format arguments like sprintf(). The resulting message should be a
303 * single phrase, with no newline or trailing punctuation.
304 * Prepend the current location and append a newline.
306 void info_report(const char *fmt, ...)
311 vreport(REPORT_TYPE_INFO, fmt, ap);
316 * Like error_report(), except print just once.
317 * If *printed is false, print the message, and flip *printed to true.
318 * Return whether the message was printed.
320 bool error_report_once_cond(bool *printed, const char *fmt, ...)
330 vreport(REPORT_TYPE_ERROR, fmt, ap);
336 * Like warn_report(), except print just once.
337 * If *printed is false, print the message, and flip *printed to true.
338 * Return whether the message was printed.
340 bool warn_report_once_cond(bool *printed, const char *fmt, ...)
350 vreport(REPORT_TYPE_WARNING, fmt, ap);
355 static char *qemu_glog_domains;
357 static void qemu_log_func(const gchar *log_domain,
358 GLogLevelFlags log_level,
359 const gchar *message,
362 switch (log_level & G_LOG_LEVEL_MASK) {
363 case G_LOG_LEVEL_DEBUG:
364 case G_LOG_LEVEL_INFO:
366 * Use same G_MESSAGES_DEBUG logic as glib to enable/disable debug
369 if (qemu_glog_domains == NULL) {
372 if (strcmp(qemu_glog_domains, "all") != 0 &&
373 (log_domain == NULL || !strstr(qemu_glog_domains, log_domain))) {
377 case G_LOG_LEVEL_MESSAGE:
378 info_report("%s%s%s",
379 log_domain ?: "", log_domain ? ": " : "", message);
382 case G_LOG_LEVEL_WARNING:
383 warn_report("%s%s%s",
384 log_domain ?: "", log_domain ? ": " : "", message);
386 case G_LOG_LEVEL_CRITICAL:
387 case G_LOG_LEVEL_ERROR:
388 error_report("%s%s%s",
389 log_domain ?: "", log_domain ? ": " : "", message);
394 void error_init(const char *argv0)
396 /* Set the program name for error_print_loc(). */
397 error_set_progname(argv0);
400 * This sets up glib logging so libraries using it also print their logs
401 * through error_report(), warn_report(), info_report().
403 g_log_set_default_handler(qemu_log_func, NULL);
404 g_warn_if_fail(qemu_glog_domains == NULL);
405 qemu_glog_domains = g_strdup(g_getenv("G_MESSAGES_DEBUG"));