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ratbagctl: implement list-devices and show-device

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Two new verbs for ratbagctl:
 - list-devices: list all available devices
 - show-device: show detailed information about a single device

Signed-off-by: David Herrmann <dh.herrmann@gmail.com>
This commit is contained in:
David Herrmann
2015-09-29 16:22:53 +02:00
parent 0a9c2824ba
commit ff8f391e91
1 changed files with 327 additions and 6 deletions
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333
src/ratbagctl.c
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@@ -28,48 +28,369 @@
#include <getopt.h>
#include <stdio.h>
#include <stdlib.h>
#include <systemd/sd-bus.h>
#include "shared-macro.h"
struct ratbagctl {
int unused;
sd_bus *bus;
};
static int verb_help(struct ratbagctl *ctl, int argc, char **argv);
DEFINE_TRIVIAL_CLEANUP_FUNC(sd_bus_message *, sd_bus_message_unref);
static struct ratbagctl *ratbagctl_free(struct ratbagctl *ctl)
{
if (!ctl)
return NULL;
free(ctl);
ctl->bus = sd_bus_unref(ctl->bus);
return NULL;
return mfree(ctl);
}
DEFINE_TRIVIAL_CLEANUP_FUNC(struct ratbagctl *, ratbagctl_free);
static int ratbagctl_new(struct ratbagctl **out)
{
struct ratbagctl *ctl;
_cleanup_(ratbagctl_freep) struct ratbagctl *ctl = NULL;
int r;
ctl = calloc(1, sizeof(*ctl));
if (!ctl)
return -ENOMEM;
r = sd_bus_open_system(&ctl->bus);
if (r < 0)
return r;
*out = ctl;
ctl = NULL;
return 0;
}
static int verb_list(struct ratbagctl *ctl, int argc, char **argv)
static int list_devices_show(struct ratbagctl *ctl, const char *path)
{
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
const char *prop_id = NULL, *prop_description = NULL;
int r;
r = sd_bus_call_method(ctl->bus,
"org.freedesktop.ratbag1",
path,
"org.freedesktop.DBus.Properties",
"GetAll",
&error,
&reply,
"s",
"org.freedesktop.ratbag1.Device");
if (r < 0)
return r;
r = sd_bus_message_enter_container(reply, 'a', "{sv}");
if (r < 0)
return r;
while ((r = sd_bus_message_enter_container(reply, 'e', "sv")) > 0) {
const char *property;
r = sd_bus_message_read_basic(reply, 's', &property);
if (r < 0)
return r;
if (!strcmp(property, "Id")) {
r = sd_bus_message_read(reply, "v", "s",
&prop_id);
} else if (!strcmp(property, "Description")) {
r = sd_bus_message_read(reply, "v", "s",
&prop_description);
} else {
r = sd_bus_message_skip(reply, "v");
}
if (r < 0)
return r;
r = sd_bus_message_exit_container(reply);
if (r < 0)
return r;
}
if (r < 0)
return r;
r = sd_bus_message_exit_container(reply);
if (r < 0)
return r;
printf("%10s %-32s\n", prop_id, prop_description);
return 0;
}
static int list_devices_all(struct ratbagctl *ctl)
{
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
unsigned int k = 0;
const char *path;
int r;
r = sd_bus_call_method(ctl->bus,
"org.freedesktop.ratbag1",
"/org/freedesktop/ratbag1",
"org.freedesktop.DBus.Properties",
"Get",
&error,
&reply,
"ss",
"org.freedesktop.ratbag1.Manager",
"Devices");
if (r < 0)
goto exit;
r = sd_bus_message_enter_container(reply, 'v', "ao");
if (r < 0)
goto exit;
r = sd_bus_message_enter_container(reply, 'a', "o");
if (r < 0)
goto exit;
printf("%10s %-32s\n", "DEVICE", "DESCRIPTION");
while ((r = sd_bus_message_read_basic(reply, 'o', &path)) > 0) {
r = list_devices_show(ctl, path);
if (r < 0)
goto exit;
++k;
}
if (r < 0)
goto exit;
printf("\n%u device%s listed.\n", k, k > 1 ? "s" : "");
r = sd_bus_message_exit_container(reply);
if (r < 0)
goto exit;
r = sd_bus_message_exit_container(reply);
exit:
if (r < 0)
fprintf(stderr, "Cannot list devices: %s\n",
error.message ? : "Parser error");
return r;
}
static int verb_list_devices(struct ratbagctl *ctl, int argc, char **argv)
{
static const struct option options[] = {
{},
};
int c;
while ((c = getopt_long(argc, argv, "+", options, NULL)) >= 0) {
switch (c) {
default:
return -EINVAL;
}
}
if (argv[optind]) {
fprintf(stderr, "Command does not take arguments\n");
return -EINVAL;
}
return list_devices_all(ctl);
}
static int show_device_get_profile_index(struct ratbagctl *ctl,
const char *path,
unsigned int *out_index)
{
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
int r;
r = sd_bus_call_method(ctl->bus,
"org.freedesktop.ratbag1",
path,
"org.freedesktop.DBus.Properties",
"Get",
&error,
&reply,
"ss",
"org.freedesktop.ratbag1.Profile",
"Index");
if (r < 0)
return r;
r = sd_bus_message_enter_container(reply, 'v', "u");
if (r < 0)
return r;
r = sd_bus_message_read_basic(reply, 'u', out_index);
if (r < 0)
return r;
r = sd_bus_message_exit_container(reply);
if (r < 0)
return r;
return 0;
}
static int show_device_print(struct ratbagctl *ctl, const char *device)
{
_cleanup_(sd_bus_error_free) sd_bus_error error = SD_BUS_ERROR_NULL;
_cleanup_(sd_bus_message_unrefp) sd_bus_message *reply = NULL;
unsigned int prop_min_index = 0, prop_max_index = 0;
unsigned int prop_active_profile = 0;
const char *prop_id = NULL, *prop_description = NULL;
_cleanup_(freep) char *path = NULL;
int r;
r = sd_bus_path_encode_many(&path,
"/org/freedesktop/ratbag1/device/%",
device);
if (r < 0)
goto exit;
r = sd_bus_call_method(ctl->bus,
"org.freedesktop.ratbag1",
path,
"org.freedesktop.DBus.Properties",
"GetAll",
&error,
&reply,
"s",
"org.freedesktop.ratbag1.Device");
if (r < 0)
goto exit;
r = sd_bus_message_enter_container(reply, 'a', "{sv}");
if (r < 0)
goto exit;
while ((r = sd_bus_message_enter_container(reply, 'e', "sv")) > 0) {
const char *property, *profile;
r = sd_bus_message_read_basic(reply, 's', &property);
if (r < 0)
goto exit;
if (!strcmp(property, "Id")) {
r = sd_bus_message_read(reply, "v", "s",
&prop_id);
} else if (!strcmp(property, "Description")) {
r = sd_bus_message_read(reply, "v", "s",
&prop_description);
} else if (!strcmp(property, "Profiles")) {
r = sd_bus_message_enter_container(reply, 'v', "ao");
if (r < 0)
goto exit;
r = sd_bus_message_enter_container(reply, 'a', "o");
if (r < 0)
goto exit;
while ((r = sd_bus_message_read_basic(reply,
'o',
&profile)) > 0) {
unsigned int index;
r = show_device_get_profile_index(ctl,
profile,
&index);
if (r < 0)
goto exit;
if (index < prop_min_index)
prop_min_index = index;
if (index >= prop_max_index)
prop_max_index = index + 1;
}
if (r < 0)
goto exit;
r = sd_bus_message_exit_container(reply);
if (r < 0)
goto exit;
r = sd_bus_message_exit_container(reply);
} else if (!strcmp(property, "ActiveProfile")) {
r = sd_bus_message_read(reply, "v", "o", &profile);
if (r < 0)
goto exit;
r = show_device_get_profile_index(ctl,
profile,
&prop_active_profile);
} else {
r = sd_bus_message_skip(reply, "v");
}
if (r < 0)
goto exit;
r = sd_bus_message_exit_container(reply);
if (r < 0)
goto exit;
}
if (r < 0)
goto exit;
r = sd_bus_message_exit_container(reply);
if (r < 0)
goto exit;
printf("%s - %s\n", prop_id, prop_description);
if (prop_min_index == prop_max_index)
printf("\t Profiles:\n");
else if (prop_min_index + 1 == prop_max_index)
printf("\t Profiles: %u\n", prop_min_index);
else
printf("\t Profiles: %u - %u\n",
prop_min_index, prop_max_index - 1);
printf("\t Active Profile: %u\n", prop_active_profile);
exit:
if (r < 0)
fprintf(stderr, "Cannot show device: %s\n",
error.message ? : "Parser error");
return r;
}
static int verb_show_device(struct ratbagctl *ctl, int argc, char **argv)
{
static const struct option options[] = {
{},
};
const char *device;
int c;
while ((c = getopt_long(argc, argv, "+", options, NULL)) >= 0) {
switch (c) {
default:
return -EINVAL;
}
}
device = argv[optind];
if (!device) {
fprintf(stderr, "No device specified\n");
return -EINVAL;
}
return show_device_print(ctl, device);
}
static const struct {
const char *verb;
const char *help;
int (*dispatch) (struct ratbagctl *ctl, int argc, char **argv);
void (*long_help) (void);
} verbs[] = {
{ "list", "List available configurable mice", verb_list, NULL },
{ "list-devices", "List available configurable mice", verb_list_devices, NULL },
{ "show-device", "Show device information", verb_show_device, NULL },
{ "help", "Show help for a command", verb_help, NULL },
{},
};