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// SPDX-License-Identifier: GPL-2.0-or-later
// SPDX-FileCopyrightText: 2023 Bartosz Golaszewski <bartosz.golaszewski@linaro.org>
#include <stdlib.h>
#include "common.h"
int gpiocli_release_main(int argc, char **argv)
{
static const gchar *const summary =
"Release one of the line requests controlled by the manager.";
g_autoptr(GDBusObjectManager) manager = NULL;
g_autoptr(GpiodbusObject) obj = NULL;
g_autofree gchar *obj_path = NULL;
g_auto(GStrv) remaining = NULL;
g_autoptr(GError) err = NULL;
const gchar *request_name;
GpiodbusRequest *request;
gboolean ret;
const GOptionEntry opts[] = {
{
.long_name = G_OPTION_REMAINING,
.flags = G_OPTION_FLAG_NONE,
.arg = G_OPTION_ARG_STRING_ARRAY,
.arg_data = &remaining,
.arg_description = "<request>",
},
{ }
};
parse_options(opts, summary, NULL, &argc, &argv);
if (!remaining || g_strv_length(remaining) != 1)
die_parsing_opts("Exactly one request to release must be specified.");
check_manager();
request_name = remaining[0];
obj_path = make_request_obj_path(request_name);
manager = get_object_manager_client("/io/gpiod1/requests");
obj = GPIODBUS_OBJECT(g_dbus_object_manager_get_object(manager,
obj_path));
if (!obj)
goto no_request;
request = gpiodbus_object_peek_request(obj);
if (!request)
goto no_request;
ret = gpiodbus_request_call_release_sync(request,
G_DBUS_CALL_FLAGS_NONE,
-1, NULL, &err);
if (!ret)
die_gerror(err, "Failed to release request '%s': %s",
request_name, err->message);
return EXIT_SUCCESS;
no_request:
die("No such request: '%s'", request_name);
}
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