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authorMarc-André Lureau <marcandre.lureau@redhat.com>2018-12-06 00:37:33 +0400
committerMarkus Armbruster <armbru@redhat.com>2018-12-12 09:55:57 +0100
commit9ac3788b0be368e2826a8e9adadc1ada87d89273 (patch)
treea91ff23c71736ba9d91377b0a066ab6fa71364fc /include/chardev
parentef12a703b7d4894a851cbf3e94cca8fa25fc43f2 (diff)
char: add a QEMU_CHAR_FEATURE_GCONTEXT flag
QEMU_CHAR_FEATURE_GCONTEXT declares the character device can switch GMainContext. Assert we don't switch context when the character device doesn't provide this feature. Character device users must not violate this restriction. In particular, user configurations that violate them must be rejected. Existing frontend that rely on context switching would now assert() if the backend doesn't allow it (instead of silently producing undesired events in the default context). Following patches improve the situation by reporting an error earlier instead, on the frontend side. Signed-off-by: Marc-André Lureau <marcandre.lureau@redhat.com> Message-Id: <20181205203737.9011-4-marcandre.lureau@redhat.com> Signed-off-by: Markus Armbruster <armbru@redhat.com>
Diffstat (limited to 'include/chardev')
-rw-r--r--include/chardev/char.h3
1 files changed, 3 insertions, 0 deletions
diff --git a/include/chardev/char.h b/include/chardev/char.h
index 7becd8c80c..014566c3de 100644
--- a/include/chardev/char.h
+++ b/include/chardev/char.h
@@ -47,6 +47,9 @@ typedef enum {
QEMU_CHAR_FEATURE_FD_PASS,
/* Whether replay or record mode is enabled */
QEMU_CHAR_FEATURE_REPLAY,
+ /* Whether the gcontext can be changed after calling
+ * qemu_chr_be_update_read_handlers() */
+ QEMU_CHAR_FEATURE_GCONTEXT,
QEMU_CHAR_FEATURE_LAST,
} ChardevFeature;