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-rw-r--r--qemu-char.c53
1 files changed, 53 insertions, 0 deletions
diff --git a/qemu-char.c b/qemu-char.c
index ea15d357d0..73a5e37aa7 100644
--- a/qemu-char.c
+++ b/qemu-char.c
@@ -3010,3 +3010,56 @@ QemuOptsList qemu_chardev_opts = {
{ /* end of list */ }
},
};
+
+ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
+ Error **errp)
+{
+ ChardevReturn *ret = g_new0(ChardevReturn, 1);
+ CharDriverState *chr = NULL;
+
+ chr = qemu_chr_find(id);
+ if (chr) {
+ error_setg(errp, "Chardev '%s' already exists", id);
+ g_free(ret);
+ return NULL;
+ }
+
+ switch (backend->kind) {
+ case CHARDEV_BACKEND_KIND_NULL:
+ chr = qemu_chr_open_null(NULL);
+ break;
+ default:
+ error_setg(errp, "unknown chardev backend (%d)", backend->kind);
+ break;
+ }
+
+ if (chr == NULL && !error_is_set(errp)) {
+ error_setg(errp, "Failed to create chardev");
+ }
+ if (chr) {
+ chr->label = g_strdup(id);
+ chr->avail_connections = 1;
+ QTAILQ_INSERT_TAIL(&chardevs, chr, next);
+ return ret;
+ } else {
+ g_free(ret);
+ return NULL;
+ }
+}
+
+void qmp_chardev_remove(const char *id, Error **errp)
+{
+ CharDriverState *chr;
+
+ chr = qemu_chr_find(id);
+ if (NULL == chr) {
+ error_setg(errp, "Chardev '%s' not found", id);
+ return;
+ }
+ if (chr->chr_can_read || chr->chr_read ||
+ chr->chr_event || chr->handler_opaque) {
+ error_setg(errp, "Chardev '%s' is busy", id);
+ return;
+ }
+ qemu_chr_delete(chr);
+}