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Cleanup and documentation

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I'm pushing this now while it still works.
This commit is contained in:
ctult 2015-11-17 17:45:24 -07:00
parent 35da4daae9
commit b3ee33ad72
2 changed files with 73 additions and 66 deletions
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99
netplay.c
View File

@ -100,12 +100,14 @@ struct netplay
unsigned timeout_cnt;
/* Spectating. */
bool spectate;
bool spectate_client;
int spectate_fds[MAX_SPECTATORS];
uint16_t *spectate_input;
size_t spectate_input_ptr;
size_t spectate_input_size;
struct {
bool enabled;
bool client;
int fds[MAX_SPECTATORS];
uint16_t *input;
size_t input_ptr;
size_t input_sz;
} spectate;
/* User flipping
* Flipping state. If ptr >= flip_frame, we apply the flip.
@ -284,7 +286,8 @@ static bool netplay_get_response(netplay_t *netplay)
static bool netplay_get_cmd(netplay_t *netplay)
{
uint32_t cmd, flip_frame;
uint32_t cmd;
uint32_t flip_frame;
size_t cmd_size;
if (!socket_receive_all_blocking(netplay->fd, &cmd, sizeof(cmd)))
@ -300,7 +303,7 @@ static bool netplay_get_cmd(netplay_t *netplay)
case NETPLAY_CMD_FLIP_PLAYERS:
if (cmd_size != sizeof(uint32_t))
{
RARCH_ERR("CMD_FLIP_PLAYERS has unexpected command size.\n");
RARCH_ERR("CMD_FLIP_PLAYERS recieved an unexpected command size.\n");
return netplay_cmd_nak(netplay);
}
@ -338,18 +341,6 @@ static bool netplay_get_cmd(netplay_t *netplay)
RARCH_ERR("NETPLAY_CMD_LOAD_SAVESTATE unimplemented.\n");
return netplay_cmd_nak(netplay);
case NETPLAY_CFG_SWAP_INPUT:
RARCH_ERR("NETPLAY_CFG_SWAP_INPUT unimplemented.\n");
return netplay_cmd_nak(netplay);
case NETPLAY_CFG_DELAY_FRAMES:
RARCH_ERR("NETPLAY_CFG_DELAY_FRAMES unimplemented.\n");
return netplay_cmd_nak(netplay);
case NETPLAY_CFG_CHEATS:
RARCH_ERR("NETPLAY_CFG_CHEATS unimplemented.\n");
return netplay_cmd_nak(netplay);
case NETPLAY_CMD_PAUSE:
event_command(EVENT_CMD_PAUSE);
return netplay_cmd_ack(netplay);
@ -784,7 +775,7 @@ static bool init_tcp_socket(netplay_t *netplay, const char *server,
while (tmp_info)
{
int fd;
if ((fd = init_tcp_connection(tmp_info, server, netplay->spectate,
if ((fd = init_tcp_connection(tmp_info, server, netplay->spectate.enabled,
(struct sockaddr*)&netplay->other_addr,
sizeof(netplay->other_addr))) >= 0)
{
@ -866,9 +857,9 @@ static bool init_socket(netplay_t *netplay, const char *server, uint16_t port)
if (!network_init())
return false;
if (!init_tcp_socket(netplay, server, port, netplay->spectate))
if (!init_tcp_socket(netplay, server, port, netplay->spectate.enabled))
return false;
if (!netplay->spectate && !init_udp_socket(netplay, server, port))
if (!netplay->spectate.enabled && !init_udp_socket(netplay, server, port))
return false;
return true;
@ -1243,12 +1234,12 @@ netplay_t *netplay_new(const char *server, uint16_t port,
if (!netplay)
return NULL;
netplay->fd = -1;
netplay->udp_fd = -1;
netplay->cbs = *cb;
netplay->port = server ? 0 : 1;
netplay->spectate = spectate;
netplay->spectate_client = server != NULL;
netplay->fd = -1;
netplay->udp_fd = -1;
netplay->cbs = *cb;
netplay->port = server ? 0 : 1;
netplay->spectate.enabled = spectate;
netplay->spectate.client = server != NULL;
strlcpy(netplay->nick, nick, sizeof(netplay->nick));
if (!init_socket(netplay, server, port))
@ -1266,7 +1257,7 @@ netplay_t *netplay_new(const char *server, uint16_t port,
}
for (i = 0; i < MAX_SPECTATORS; i++)
netplay->spectate_fds[i] = -1;
netplay->spectate.fds[i] = -1;
}
else
{
@ -1341,7 +1332,7 @@ bool netplay_command(netplay_t* netplay, enum netplay_cmd cmd,
bool host_only = !!(flags & CMD_OPT_HOST_ONLY);
bool require_sync = !!(flags & CMD_OPT_REQUIRE_SYNC);
if (netplay->spectate && !allowed_spectate)
if (netplay->spectate.enabled && !allowed_spectate)
{
msg = "Cannot %s in spectate mode.";
goto error;
@ -1413,13 +1404,13 @@ void netplay_free(netplay_t *netplay)
socket_close(netplay->fd);
if (netplay->spectate)
if (netplay->spectate.enabled)
{
for (i = 0; i < MAX_SPECTATORS; i++)
if (netplay->spectate_fds[i] >= 0)
socket_close(netplay->spectate_fds[i]);
if (netplay->spectate.fds[i] >= 0)
socket_close(netplay->spectate.fds[i]);
free(netplay->spectate_input);
free(netplay->spectate.input);
}
else
{
@ -1454,15 +1445,15 @@ static void netplay_pre_frame_net(netplay_t *netplay)
static void netplay_set_spectate_input(netplay_t *netplay, int16_t input)
{
if (netplay->spectate_input_ptr >= netplay->spectate_input_size)
if (netplay->spectate.input_ptr >= netplay->spectate.input_sz)
{
netplay->spectate_input_size++;
netplay->spectate_input_size *= 2;
netplay->spectate_input = (uint16_t*)realloc(netplay->spectate_input,
netplay->spectate_input_size * sizeof(uint16_t));
netplay->spectate.input_sz++;
netplay->spectate.input_sz *= 2;
netplay->spectate.input = (uint16_t*)realloc(netplay->spectate.input,
netplay->spectate.input_sz * sizeof(uint16_t));
}
netplay->spectate_input[netplay->spectate_input_ptr++] = swap_if_big16(input);
netplay->spectate.input[netplay->spectate.input_ptr++] = swap_if_big16(input);
}
int16_t input_state_spectate(unsigned port, unsigned device,
@ -1516,7 +1507,7 @@ static void netplay_pre_frame_spectate(netplay_t *netplay)
fd_set fds;
struct timeval tmp_tv = {0};
if (netplay->spectate_client)
if (netplay->spectate.client)
return;
FD_ZERO(&fds);
@ -1539,7 +1530,7 @@ static void netplay_pre_frame_spectate(netplay_t *netplay)
idx = -1;
for (i = 0; i < MAX_SPECTATORS; i++)
{
if (netplay->spectate_fds[i] == -1)
if (netplay->spectate.fds[i] == -1)
{
idx = i;
break;
@ -1590,7 +1581,7 @@ static void netplay_pre_frame_spectate(netplay_t *netplay)
}
free(header);
netplay->spectate_fds[idx] = new_fd;
netplay->spectate.fds[idx] = new_fd;
#ifndef HAVE_SOCKET_LEGACY
log_connection(&their_addr, idx, netplay->other_nick);
@ -1606,7 +1597,7 @@ static void netplay_pre_frame_spectate(netplay_t *netplay)
**/
void netplay_pre_frame(netplay_t *netplay)
{
if (netplay->spectate)
if (netplay->spectate.enabled)
netplay_pre_frame_spectate(netplay);
else
netplay_pre_frame_net(netplay);
@ -1685,19 +1676,19 @@ static void netplay_post_frame_spectate(netplay_t *netplay)
{
unsigned i;
if (netplay->spectate_client)
if (netplay->spectate.client)
return;
for (i = 0; i < MAX_SPECTATORS; i++)
{
char msg[PATH_MAX_LENGTH] = {0};
if (netplay->spectate_fds[i] == -1)
if (netplay->spectate.fds[i] == -1)
continue;
if (socket_send_all_blocking(netplay->spectate_fds[i],
netplay->spectate_input,
netplay->spectate_input_ptr * sizeof(int16_t)))
if (socket_send_all_blocking(netplay->spectate.fds[i],
netplay->spectate.input,
netplay->spectate.input_ptr * sizeof(int16_t)))
continue;
RARCH_LOG("Client (#%u) disconnected ...\n", i);
@ -1705,12 +1696,12 @@ static void netplay_post_frame_spectate(netplay_t *netplay)
snprintf(msg, sizeof(msg), "Client (#%u) disconnected.", i);
rarch_main_msg_queue_push(msg, 1, 180, false);
socket_close(netplay->spectate_fds[i]);
netplay->spectate_fds[i] = -1;
socket_close(netplay->spectate.fds[i]);
netplay->spectate.fds[i] = -1;
break;
}
netplay->spectate_input_ptr = 0;
netplay->spectate.input_ptr = 0;
}
/**
@ -1723,7 +1714,7 @@ static void netplay_post_frame_spectate(netplay_t *netplay)
**/
void netplay_post_frame(netplay_t *netplay)
{
if (netplay->spectate)
if (netplay->spectate.enabled)
netplay_post_frame_spectate(netplay);
else
netplay_post_frame_net(netplay);

40
netplay.h
View File

@ -26,23 +26,39 @@
typedef struct netplay netplay_t;
/* TODO: most of this, actually */
/* /!\ WARNING: A command identifier cannot exceed 16 bytes in length. */
enum netplay_cmd
{
/* misc. commands */
NETPLAY_CMD_ACK = 0x0000, /**< Acknowlegement response */
NETPLAY_CMD_NAK = 0x0001, /**< Failed acknowlegement response */
NETPLAY_CMD_FLIP_PLAYERS = 0x0002, /**< Swap inputs between p1 and p2. */
NETPLAY_CMD_SPECTATE = 0x0003, /**< Toggle spectate/join mode */
NETPLAY_CMD_DISCONNECT = 0x0004, /**< Gracefully disconnects from host. */
NETPLAY_CMD_ACK = 0x0000, /**< Acknowlegement response */
NETPLAY_CMD_NAK = 0x0001, /**< Failed acknowlegement response */
NETPLAY_CMD_FLIP_PLAYERS = 0x0002, /**< Swap inputs between p1 and p2. */
NETPLAY_CMD_SPECTATE = 0x0003, /**< Toggle spectate/join mode */
NETPLAY_CMD_DISCONNECT = 0x0004, /**< Gracefully disconnects from host. */
NETPLAY_CMD_CFG = 0x0005, /**< Sends multiple config requests over, See
enum netplay_cmd_cfg. */
NETPLAY_CMD_CFG_ACK = 0x0006, /**< CMD_CFG streamlines sending multiple
configurations. This acknowledges
each one individually. */
/* loading and synchronization */
NETPLAY_CMD_LOAD_SAVESTATE = 0x0012, /** Send a savestate for the client to load */
/* configuration synchronization */
NETPLAY_CFG_SWAP_INPUT = 0x0020, /**< input.netplay_client_swap_input */
NETPLAY_CFG_DELAY_FRAMES = 0x0021, /**< netplay.sync_frames */
NETPLAY_CFG_CHEATS = 0x0022, /**< Sends the cheats enabled on the host. */
NETPLAY_CMD_LOAD_SAVESTATE = 0x0012, /** Send a savestate for the client to load */
NETPLAY_CMD_CHEATS = 0x0013, /** Sends over cheats enabled on client. */
/* controlling game playback */
NETPLAY_CMD_PAUSE = 0x0030, /**< Pauses the game, takes no args. */
NETPLAY_CMD_RESUME = 0x0031, /**< Resumes the game, takes no args. */
NETPLAY_CMD_PAUSE = 0x0030, /**< Pauses the game, takes no args. */
NETPLAY_CMD_RESUME = 0x0031, /**< Resumes the game, takes no args. */
};
/* These are the configurations sent by NETPLAY_CMD_CFG. */
enum netplay_cmd_cfg
{
NETPLAY_CFG_NICK = 0x0001, /**< nickname */
NETPLAY_CFG_SWAP_INPUT = 0x0002, /**< input.netplay_client_swap_input */
NETPLAY_CFG_DELAY_FRAMES = 0x0004, /**< netplay.sync_frames */
NETPLAY_CFG_PLAYER_SLOT = 0x0008, /**< For more than 2 players. */
};
void input_poll_net(void);