[v1] Logging cleanup and per-thread logfiles

[PULL 03/39] util/log: Return bool from qemu_set_log_filename

Richard Henderson posted 39 patches 3 years, 9 months ago

Diff against v1 v2 v3
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Maintainers: Richard Henderson <richard.henderson@linaro.org>, Paolo Bonzini <pbonzini@redhat.com>, Warner Losh <imp@bsdimp.com>, Kyle Evans <kevans@freebsd.org>, Eduardo Habkost <eduardo@habkost.net>, Marcel Apfelbaum <marcel.apfelbaum@gmail.com>, "Philippe Mathieu-Daudé" <f4bug@amsat.org>, Yanan Wang <wangyanan55@huawei.com>, Pavel Pisa <pisa@cmp.felk.cvut.cz>, Vikram Garhwal <fnu.vikram@xilinx.com>, Jason Wang <jasowang@redhat.com>, Stefano Stabellini <sstabellini@kernel.org>, Anthony Perard <anthony.perard@citrix.com>, Paul Durrant <paul@xen.org>, Stefan Weil <sw@weilnetz.de>, Laurent Vivier <laurent@vivier.eu>, Markus Armbruster <armbru@redhat.com>, "Dr. David Alan Gilbert" <dgilbert@redhat.com>, Kevin Wolf <kwolf@redhat.com>, Hanna Reitz <hreitz@redhat.com>, Eric Blake <eblake@redhat.com>, Vladimir Sementsov-Ogievskiy <v.sementsov-og@mail.ru>, Fam Zheng <fam@euphon.net>, Peter Maydell <peter.maydell@linaro.org>, Michael Rolnik <mrolnik@gmail.com>, "Edgar E. Iglesias" <edgar.iglesias@gmail.com>, Taylor Simpson <tsimpson@quicinc.com>, Aurelien Jarno <aurelien@aurel32.net>, Jiaxun Yang <jiaxun.yang@flygoat.com>, Aleksandar Rikalo <aleksandar.rikalo@syrmia.com>, Chris Wulff <crwulff@gmail.com>, Marek Vasut <marex@denx.de>, Stafford Horne <shorne@gmail.com>, "Cédric Le Goater" <clg@kaod.org>, Daniel Henrique Barboza <danielhb413@gmail.com>, David Gibson <david@gibson.dropbear.id.au>, Greg Kurz <groug@kaod.org>, Palmer Dabbelt <palmer@dabbelt.com>, Alistair Francis <alistair.francis@wdc.com>, Bin Meng <bin.meng@windriver.com>, Yoshinori Sato <ysato@users.sourceforge.jp>, David Hildenbrand <david@redhat.com>, Cornelia Huck <cohuck@redhat.com>, Thomas Huth <thuth@redhat.com>, Mark Cave-Ayland <mark.cave-ayland@ilande.co.uk>, Artyom Tarasenko <atar4qemu@gmail.com>, Bastian Koppelmann <kbastian@mail.uni-paderborn.de>, Max Filippov <jcmvbkbc@gmail.com>

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[PULL 03/39] util/log: Return bool from qemu_set_log_filename

Posted by Richard Henderson 3 years, 9 months ago

Per the recommendations in qapi/error.h, return false on failure.

Use the return value in the monitor, the only place we aren't
already passing error_fatal or error_abort.

Reviewed-by: Alex Bennée <alex.bennee@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20220417183019.755276-4-richard.henderson@linaro.org>
---
 include/qemu/log.h | 2 +-
 monitor/misc.c     | 3 +--
 util/log.c         | 5 +++--
 3 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/include/qemu/log.h b/include/qemu/log.h
index ed59ebd4a2..fabfbe41da 100644
--- a/include/qemu/log.h
+++ b/include/qemu/log.h
@@ -148,7 +148,7 @@ typedef struct QEMULogItem {
 extern const QEMULogItem qemu_log_items[];
 
 void qemu_set_log(int log_flags);
-void qemu_set_log_filename(const char *filename, Error **errp);
+bool qemu_set_log_filename(const char *filename, Error **errp);
 void qemu_set_dfilter_ranges(const char *ranges, Error **errp);
 bool qemu_log_in_addr_range(uint64_t addr);
 int qemu_str_to_log_mask(const char *str);
diff --git a/monitor/misc.c b/monitor/misc.c
index b0fc0e5843..4b68fcd346 100644
--- a/monitor/misc.c
+++ b/monitor/misc.c
@@ -419,8 +419,7 @@ static void hmp_logfile(Monitor *mon, const QDict *qdict)
 {
     Error *err = NULL;
 
-    qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err);
-    if (err) {
+    if (!qemu_set_log_filename(qdict_get_str(qdict, "filename"), &err)) {
         error_report_err(err);
     }
 }
diff --git a/util/log.c b/util/log.c
index ffa66a267e..a838686a18 100644
--- a/util/log.c
+++ b/util/log.c
@@ -138,7 +138,7 @@ void qemu_set_log(int log_flags)
  *
  * filename may be NULL. In that case, log output is sent to stderr
  */
-void qemu_set_log_filename(const char *filename, Error **errp)
+bool qemu_set_log_filename(const char *filename, Error **errp)
 {
     g_free(logfilename);
     logfilename = NULL;
@@ -149,7 +149,7 @@ void qemu_set_log_filename(const char *filename, Error **errp)
                 /* We only accept one %d, no other format strings */
                 if (pidstr[1] != 'd' || strchr(pidstr + 2, '%')) {
                     error_setg(errp, "Bad logfile format: %s", filename);
-                    return;
+                    return false;
                 } else {
                     logfilename = g_strdup_printf(filename, getpid());
                 }
@@ -160,6 +160,7 @@ void qemu_set_log_filename(const char *filename, Error **errp)
 
     qemu_log_close();
     qemu_set_log(qemu_loglevel);
+    return true;
 }
 
 /* Returns true if addr is in our debug filter or no filter defined
-- 
2.34.1