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-rw-r--r--chardev/char.c12
-rw-r--r--hmp-commands.hx16
-rw-r--r--hmp.c8
-rw-r--r--hmp.h1
-rw-r--r--qapi-schema.json20
-rw-r--r--tests/test-char.c12
-rw-r--r--tests/test-hmp.c1
7 files changed, 68 insertions, 2 deletions
diff --git a/chardev/char.c b/chardev/char.c
index bcfc065d16..2b679a2295 100644
--- a/chardev/char.c
+++ b/chardev/char.c
@@ -951,6 +951,18 @@ void qmp_chardev_remove(const char *id, Error **errp)
object_unparent(OBJECT(chr));
}
+void qmp_chardev_send_break(const char *id, Error **errp)
+{
+ Chardev *chr;
+
+ chr = qemu_chr_find(id);
+ if (chr == NULL) {
+ error_setg(errp, "Chardev '%s' not found", id);
+ return;
+ }
+ qemu_chr_be_event(chr, CHR_EVENT_BREAK);
+}
+
void qemu_chr_cleanup(void)
{
object_unparent(get_chardevs_root());
diff --git a/hmp-commands.hx b/hmp-commands.hx
index e763606fe5..275ccdfbc7 100644
--- a/hmp-commands.hx
+++ b/hmp-commands.hx
@@ -1745,6 +1745,22 @@ Removes the chardev @var{id}.
ETEXI
{
+ .name = "chardev-send-break",
+ .args_type = "id:s",
+ .params = "id",
+ .help = "send a break on chardev",
+ .cmd = hmp_chardev_send_break,
+ .command_completion = chardev_remove_completion,
+ },
+
+STEXI
+@item chardev-send-break id
+@findex chardev-send-break
+Send a break on the chardev @var{id}.
+
+ETEXI
+
+ {
.name = "qemu-io",
.args_type = "device:B,command:s",
.params = "[device] \"[command]\"",
diff --git a/hmp.c b/hmp.c
index 4c41cac625..dee40284c1 100644
--- a/hmp.c
+++ b/hmp.c
@@ -2236,6 +2236,14 @@ void hmp_chardev_remove(Monitor *mon, const QDict *qdict)
hmp_handle_error(mon, &local_err);
}
+void hmp_chardev_send_break(Monitor *mon, const QDict *qdict)
+{
+ Error *local_err = NULL;
+
+ qmp_chardev_send_break(qdict_get_str(qdict, "id"), &local_err);
+ hmp_handle_error(mon, &local_err);
+}
+
void hmp_qemu_io(Monitor *mon, const QDict *qdict)
{
BlockBackend *blk;
diff --git a/hmp.h b/hmp.h
index d8b94ce9dc..214b2617e7 100644
--- a/hmp.h
+++ b/hmp.h
@@ -103,6 +103,7 @@ void hmp_nbd_server_add(Monitor *mon, const QDict *qdict);
void hmp_nbd_server_stop(Monitor *mon, const QDict *qdict);
void hmp_chardev_add(Monitor *mon, const QDict *qdict);
void hmp_chardev_remove(Monitor *mon, const QDict *qdict);
+void hmp_chardev_send_break(Monitor *mon, const QDict *qdict);
void hmp_qemu_io(Monitor *mon, const QDict *qdict);
void hmp_cpu_add(Monitor *mon, const QDict *qdict);
void hmp_object_add(Monitor *mon, const QDict *qdict);
diff --git a/qapi-schema.json b/qapi-schema.json
index 9e34cf71f3..37c4b95aad 100644
--- a/qapi-schema.json
+++ b/qapi-schema.json
@@ -5117,6 +5117,26 @@
{ 'command': 'chardev-remove', 'data': {'id': 'str'} }
##
+# @chardev-send-break:
+#
+# Send a break to a character device
+#
+# @id: the chardev's ID, must exist
+#
+# Returns: Nothing on success
+#
+# Since: 2.10
+#
+# Example:
+#
+# -> { "execute": "chardev-send-break", "arguments": { "id" : "foo" } }
+# <- { "return": {} }
+#
+##
+{ 'command': 'chardev-send-break', 'data': {'id': 'str'} }
+
+
+##
# @TpmModel:
#
# An enumeration of TPM models
diff --git a/tests/test-char.c b/tests/test-char.c
index 9e361c8d09..87c724c5c2 100644
--- a/tests/test-char.c
+++ b/tests/test-char.c
@@ -53,7 +53,9 @@ static void fe_event(void *opaque, int event)
FeHandler *h = opaque;
h->last_event = event;
- quit = true;
+ if (event != CHR_EVENT_BREAK) {
+ quit = true;
+ }
}
#ifdef CONFIG_HAS_GLIB_SUBPROCESS_TESTS
@@ -517,7 +519,7 @@ static void char_file_test(void)
file.in = fifo;
file.has_in = true;
- chr = qemu_chardev_new(NULL, TYPE_CHARDEV_FILE, &backend,
+ chr = qemu_chardev_new("label-file", TYPE_CHARDEV_FILE, &backend,
&error_abort);
qemu_chr_fe_init(&be, chr, &error_abort);
@@ -527,6 +529,12 @@ static void char_file_test(void)
fe_event,
&fe, NULL, true);
+ g_assert_cmpint(fe.last_event, !=, CHR_EVENT_BREAK);
+ qmp_chardev_send_break("label-foo", NULL);
+ g_assert_cmpint(fe.last_event, !=, CHR_EVENT_BREAK);
+ qmp_chardev_send_break("label-file", NULL);
+ g_assert_cmpint(fe.last_event, ==, CHR_EVENT_BREAK);
+
main_loop();
close(fd);
diff --git a/tests/test-hmp.c b/tests/test-hmp.c
index 99e35ec15a..6dfa0c36e2 100644
--- a/tests/test-hmp.c
+++ b/tests/test-hmp.c
@@ -22,6 +22,7 @@ static int verbose;
static const char *hmp_cmds[] = {
"boot_set ndc",
"chardev-add null,id=testchardev1",
+ "chardev-send-break testchardev2",
"chardev-remove testchardev1",
"commit all",
"cpu-add 1",