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VI1PR0801MB1998; 20:vlvTmGu/SpRNZp3t07qng6OQaP2hFGT7dCair3VSbGEBYYUIh44aK2mIAsKzW7fp9Fb4lRXUBttHFndAQ5+3wiM2qVc7Bgu8vg7kLudeDA7XwzQPZXLu5t8bgBrb9LMAAFwcA7e7TfH8RVvvd+ANomtJZ0jDpDjLdqTpxU3oDYo= X-OriginatorOrg: virtuozzo.com X-MS-Exchange-CrossTenant-OriginalArrivalTime: 26 Jun 2017 16:46:28.0550 (UTC) X-MS-Exchange-CrossTenant-FromEntityHeader: Hosted X-MS-Exchange-Transport-CrossTenantHeadersStamped: VI1PR0801MB1998 X-detected-operating-system: by eggs.gnu.org: Windows 7 or 8 [fuzzy] X-Received-From: 40.107.1.138 Subject: [Qemu-devel] [PATCH v4 01/13] char: move QemuOpts->ChardevBackend translation to a separate func X-BeenThere: qemu-devel@nongnu.org X-Mailman-Version: 2.1.21 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: pbonzini@redhat.com, Anton Nefedov , den@virtuozzo.com, marcandre.lureau@redhat.com Errors-To: qemu-devel-bounces+incoming=patchwork.ozlabs.org@nongnu.org Sender: "Qemu-devel" parse function will be used by the following patch Signed-off-by: Anton Nefedov --- chardev/char.c | 81 ++++++++++++++++++++++++++++++++++++---------------------- 1 file changed, 51 insertions(+), 30 deletions(-) diff --git a/chardev/char.c b/chardev/char.c index bcfc065..f8817c5 100644 --- a/chardev/char.c +++ b/chardev/char.c @@ -556,17 +556,23 @@ help_string_append(const char *name, void *opaque) g_string_append_printf(str, "\n%s", name); } -Chardev *qemu_chr_new_from_opts(QemuOpts *opts, - Error **errp) +static const char *chardev_alias_translate(const char *name) +{ + int i; + for (i = 0; i < (int)ARRAY_SIZE(chardev_alias_table); i++) { + if (g_strcmp0(chardev_alias_table[i].alias, name) == 0) { + return chardev_alias_table[i].typename; + } + } + return name; +} + +static ChardevBackend *qemu_chr_parse_opts(QemuOpts *opts, Error **errp) { Error *local_err = NULL; const ChardevClass *cc; - Chardev *chr; - int i; ChardevBackend *backend = NULL; - const char *name = qemu_opt_get(opts, "backend"); - const char *id = qemu_opts_id(opts); - char *bid = NULL; + const char *name = chardev_alias_translate(qemu_opt_get(opts, "backend")); if (name == NULL) { error_setg(errp, "chardev: \"%s\" missing backend", @@ -574,7 +580,40 @@ Chardev *qemu_chr_new_from_opts(QemuOpts *opts, return NULL; } - if (is_help_option(name)) { + cc = char_get_class(name, errp); + if (cc == NULL) { + return NULL; + } + + backend = g_new0(ChardevBackend, 1); + backend->type = CHARDEV_BACKEND_KIND_NULL; + + if (cc->parse) { + cc->parse(opts, backend, &local_err); + if (local_err) { + error_propagate(errp, local_err); + qapi_free_ChardevBackend(backend); + return NULL; + } + } else { + ChardevCommon *ccom = g_new0(ChardevCommon, 1); + qemu_chr_parse_common(opts, ccom); + backend->u.null.data = ccom; /* Any ChardevCommon member would work */ + } + + return backend; +} + +Chardev *qemu_chr_new_from_opts(QemuOpts *opts, Error **errp) +{ + const ChardevClass *cc; + Chardev *chr = NULL; + ChardevBackend *backend = NULL; + const char *name = chardev_alias_translate(qemu_opt_get(opts, "backend")); + const char *id = qemu_opts_id(opts); + char *bid = NULL; + + if (name && is_help_option(name)) { GString *str = g_string_new(""); chardev_name_foreach(help_string_append, str); @@ -589,38 +628,20 @@ Chardev *qemu_chr_new_from_opts(QemuOpts *opts, return NULL; } - for (i = 0; i < (int)ARRAY_SIZE(chardev_alias_table); i++) { - if (g_strcmp0(chardev_alias_table[i].alias, name) == 0) { - name = chardev_alias_table[i].typename; - break; - } + backend = qemu_chr_parse_opts(opts, errp); + if (backend == NULL) { + return NULL; } cc = char_get_class(name, errp); if (cc == NULL) { - return NULL; + goto out; } - backend = g_new0(ChardevBackend, 1); - backend->type = CHARDEV_BACKEND_KIND_NULL; - if (qemu_opt_get_bool(opts, "mux", 0)) { bid = g_strdup_printf("%s-base", id); } - chr = NULL; - if (cc->parse) { - cc->parse(opts, backend, &local_err); - if (local_err) { - error_propagate(errp, local_err); - goto out; - } - } else { - ChardevCommon *ccom = g_new0(ChardevCommon, 1); - qemu_chr_parse_common(opts, ccom); - backend->u.null.data = ccom; /* Any ChardevCommon member would work */ - } - chr = qemu_chardev_new(bid ? bid : id, object_class_get_name(OBJECT_CLASS(cc)), backend, errp);