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#include <errno.h>
#include <unistd.h>
#include <stdlib.h>
#include <stdio.h>
#include <stdint.h>
#include <sys/socket.h>
#include <sys/un.h>
#include <asm/byteorder.h>
#include <talloc/talloc.h>
#include <log.h>
#include "ui/common/discover-client.h"
#include "pb-protocol/pb-protocol.h"
struct discover_client {
int fd;
struct discover_client_ops ops;
};
static int discover_client_destructor(void *arg)
{
struct discover_client *client = arg;
if (client->fd >= 0)
close(client->fd);
return 0;
}
struct discover_client* discover_client_init(struct discover_client_ops *ops)
{
struct discover_client *client;
struct sockaddr_un addr;
client = talloc(NULL, struct discover_client);
if (!client)
return NULL;
memcpy(&client->ops, ops, sizeof(client->ops));
client->fd = socket(AF_UNIX, SOCK_STREAM, 0);
if (!client->fd < 0) {
pb_log("%s: socket: %s\n", __func__, strerror(errno));
goto out_err;
}
talloc_set_destructor(client, discover_client_destructor);
addr.sun_family = AF_UNIX;
strcpy(addr.sun_path, PB_SOCKET_PATH);
if (connect(client->fd, (struct sockaddr *)&addr, sizeof(addr))) {
pb_log("%s: connect: %s\n", __func__, strerror(errno));
goto out_err;
}
return client;
out_err:
talloc_free(client);
return NULL;
}
int discover_client_get_fd(struct discover_client *client)
{
return client->fd;
}
void discover_client_destroy(struct discover_client *client)
{
talloc_free(client);
}
int discover_client_process(struct discover_client *client)
{
struct pb_protocol_message *message;
struct device *dev;
char *dev_id;
message = pb_protocol_read_message(client, client->fd);
if (!message)
return -1;
switch (message->action) {
case PB_PROTOCOL_ACTION_ADD:
dev = pb_protocol_deserialise_device(client, message);
if (!dev) {
pb_log("%s: no device?\n", __func__);
return 0;
}
client->ops.add_device(dev);
talloc_free(dev);
break;
case PB_PROTOCOL_ACTION_REMOVE:
dev_id = pb_protocol_deserialise_string(client, message);
if (!dev_id) {
pb_log("%s: no device id?\n", __func__);
return 0;
}
client->ops.remove_device(dev_id);
break;
default:
pb_log("%s: unknown action %d\n", __func__, message->action);
}
return 0;
}
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