chardev: Make the name of memory device consistent

Now we have memory char device, but the backend name of it
is a little confusion. We actually register it by 'memory', but
the description in qemu-option, the name of open functions
and the new api backend called it 'ringbuf'. It should keep
consistent. This patch named it all to 'memory'.

Signed-off-by: Lei Li <lilei@linux.vnet.ibm.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Message-id: 1369132079-11377-2-git-send-email-lilei@linux.vnet.ibm.com
Signed-off-by: Anthony Liguori <aliguori@us.ibm.com>

qapi-schema.json

@@ -3286,7 +3286,7 @@
                                  '*rows'   : 'int' } }
 
 ##
-# @ChardevRingbuf:
+# @ChardevMemory:
 #
 # Configuration info for memory chardevs
 #
@@ -3294,7 +3294,7 @@
 #
 # Since: 1.5
 ##
-{ 'type': 'ChardevRingbuf', 'data': { '*size'  : 'int' } }
+{ 'type': 'ChardevMemory', 'data': { '*size'  : 'int' } }
 
 ##
 # @ChardevBackend:
@@ -3321,7 +3321,7 @@
                                        'spicevmc' : 'ChardevSpiceChannel',
                                        'spiceport' : 'ChardevSpicePort',
                                        'vc'     : 'ChardevVC',
-                                       'memory' : 'ChardevRingbuf' } }
+                                       'memory' : 'ChardevMemory' } }
 
 ##
 # @ChardevReturn:

qemu-char.c

@@ -2875,8 +2875,8 @@ static void ringbuf_chr_close(struct CharDriverState *chr)
     chr->opaque = NULL;
 }
 
-static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
-                                              Error **errp)
+static CharDriverState *qemu_chr_open_memory(ChardevMemory *opts,
+                                             Error **errp)
 {
     CharDriverState *chr;
     RingBufCharDriver *d;
@@ -2888,7 +2888,7 @@ static CharDriverState *qemu_chr_open_ringbuf(ChardevRingbuf *opts,
 
     /* The size must be power of 2 */
     if (d->size & (d->size - 1)) {
-        error_setg(errp, "size of ringbuf chardev must be power of two");
+        error_setg(errp, "size of memory chardev must be power of two");
         goto fail;
     }
 
@@ -3190,12 +3190,12 @@ static void qemu_chr_parse_pipe(QemuOpts *opts, ChardevBackend *backend,
     backend->pipe->device = g_strdup(device);
 }
 
-static void qemu_chr_parse_ringbuf(QemuOpts *opts, ChardevBackend *backend,
-                                   Error **errp)
+static void qemu_chr_parse_memory(QemuOpts *opts, ChardevBackend *backend,
+                                  Error **errp)
 {
     int val;
 
-    backend->memory = g_new0(ChardevRingbuf, 1);
+    backend->memory = g_new0(ChardevMemory, 1);
 
     val = qemu_opt_get_number(opts, "size", 0);
     if (val != 0) {
@@ -3787,7 +3787,7 @@ ChardevReturn *qmp_chardev_add(const char *id, ChardevBackend *backend,
         chr = vc_init(backend->vc);
         break;
     case CHARDEV_BACKEND_KIND_MEMORY:
-        chr = qemu_chr_open_ringbuf(backend->memory, errp);
+        chr = qemu_chr_open_memory(backend->memory, errp);
         break;
     default:
         error_setg(errp, "unknown chardev backend (%d)", backend->kind);
@@ -3832,7 +3832,7 @@ static void register_types(void)
     register_char_driver("socket", qemu_chr_open_socket);
     register_char_driver("udp", qemu_chr_open_udp);
     register_char_driver_qapi("memory", CHARDEV_BACKEND_KIND_MEMORY,
-                              qemu_chr_parse_ringbuf);
+                              qemu_chr_parse_memory);
     register_char_driver_qapi("file", CHARDEV_BACKEND_KIND_FILE,
                               qemu_chr_parse_file_out);
     register_char_driver_qapi("stdio", CHARDEV_BACKEND_KIND_STDIO,

qemu-options.hx

@@ -1779,7 +1779,7 @@ DEF("chardev", HAS_ARG, QEMU_OPTION_chardev,
     "-chardev msmouse,id=id[,mux=on|off]\n"
     "-chardev vc,id=id[[,width=width][,height=height]][[,cols=cols][,rows=rows]]\n"
     "         [,mux=on|off]\n"
-    "-chardev ringbuf,id=id[,size=size]\n"
+    "-chardev memory,id=id[,size=size]\n"
     "-chardev file,id=id,path=path[,mux=on|off]\n"
     "-chardev pipe,id=id,path=path[,mux=on|off]\n"
 #ifdef _WIN32
@@ -1817,7 +1817,7 @@ Backend is one of:
 @option{udp},
 @option{msmouse},
 @option{vc},
-@option{ringbuf},
+@option{memory},
 @option{file},
 @option{pipe},
 @option{console},
@@ -1926,7 +1926,7 @@ the console, in pixels.
 @option{cols} and @option{rows} specify that the console be sized to fit a text
 console with the given dimensions.
 
-@item -chardev ringbuf ,id=@var{id} [,size=@var{size}]
+@item -chardev memory ,id=@var{id} [,size=@var{size}]
 
 Create a ring buffer with fixed size @option{size}.
 @var{size} must be a power of two, and defaults to @code{64K}).