AuroraMiddleware/qt5base-lts
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Use category names when logging to the journal

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Use the custom field QT_CATEGORY to store the name of the QLoggingCategory used
when writing to systemd's journal. To pass custom fields sd_journal_send() is
needed, and is used in combination with #define SD_JOURNAL_SUPPRESS_LOCATION to
store the metadata that is already in the QMessageLogContext.

Change-Id: I6a120701f7012aaa46451dd3d91586a419c5f803
Reviewed-by: Kai Koehne <kai.koehne@digia.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
Reviewed-by: Robin Burchell <robin+qt@viroteck.net>
This commit is contained in:
Alejandro Exojo 2014-03-10 11:40:26 +01:00 committed by The Qt Project
parent 687fbc1152
commit 0ebfd0866d
2 changed files with 16 additions and 8 deletions
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8
config.tests/unix/journald/journald.c
View File

@ -40,9 +40,15 @@
****************************************************************************/
#include <systemd/sd-journal.h>
#include <syslog.h>
int main(int argc, char **argv)
{
sd_journal_print_with_location(LOG_INFO, "CODE_FILE=foo.c", "CODE_LINE=0", "unknown_function", "test message");
sd_journal_send("MESSAGE=%s", "test message",
"PRIORITY=%i", LOG_INFO,
"CODE_FUNC=%s", "unknown",
"CODE_LINE=%d", 0,
"CODE_FILE=%s", "foo.c",
NULL);
return 0;
}

16
src/corelib/global/qlogging.cpp
View File

@ -64,7 +64,9 @@
#endif
#if defined(QT_USE_JOURNALD) && !defined(QT_BOOTSTRAPPED)
# define SD_JOURNAL_SUPPRESS_LOCATION
# include <systemd/sd-journal.h>
# include <syslog.h>
# include <unistd.h>
#endif
@ -1170,13 +1172,13 @@ static void systemd_default_message_handler(QtMsgType type,
break;
}
char filebuf[PATH_MAX + sizeof("CODE_FILE=")];
snprintf(filebuf, sizeof(filebuf), "CODE_FILE=%s", context.file ? context.file : "unknown");
char linebuf[20];
snprintf(linebuf, sizeof(linebuf), "CODE_LINE=%d", context.line);
sd_journal_print_with_location(priority, filebuf, linebuf, context.function ? context.function : "unknown", "%s", message.toUtf8().constData());
sd_journal_send("MESSAGE=%s", message.toUtf8().constData(),
"PRIORITY=%i", priority,
"CODE_FUNC=%s", context.function ? context.function : "unknown",
"CODE_LINE=%d", context.line,
"CODE_FILE=%s", context.file ? context.file : "unknown",
"QT_CATEGORY=%s", context.category ? context.category : "unknown",
NULL);
}
#endif