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More coalescing.

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This commit is contained in:
Jeroen van Rijn
2023-03-03 17:12:21 +01:00
parent 798932523e
commit 5da5ebff13
5 changed files with 97 additions and 106 deletions
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core/net/socket_linux.odin
+48 -59
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@@ -22,9 +22,20 @@ import "core:c"
import "core:os"
import "core:time"
Platform_Socket :: os.Socket
Socket_Option :: enum c.int {
Reuse_Address = c.int(os.SO_REUSEADDR),
Keep_Alive = c.int(os.SO_KEEPALIVE),
Out_Of_Bounds_Data_Inline = c.int(os.SO_OOBINLINE),
TCP_Nodelay = c.int(os.TCP_NODELAY),
Linger = c.int(os.SO_LINGER),
Receive_Buffer_Size = c.int(os.SO_RCVBUF),
Send_Buffer_Size = c.int(os.SO_SNDBUF),
Receive_Timeout = c.int(os.SO_RCVTIMEO_NEW),
Send_Timeout = c.int(os.SO_SNDTIMEO_NEW),
}
create_socket :: proc(family: Address_Family, protocol: Socket_Protocol) -> (socket: Any_Socket, err: Network_Error) {
@(private)
_create_socket :: proc(family: Address_Family, protocol: Socket_Protocol) -> (socket: Any_Socket, err: Network_Error) {
c_type, c_protocol, c_family: int
switch family {
@@ -55,7 +66,8 @@ create_socket :: proc(family: Address_Family, protocol: Socket_Protocol) -> (soc
}
}
dial_tcp_from_endpoint :: proc(endpoint: Endpoint, options := default_tcp_options) -> (skt: TCP_Socket, err: Network_Error) {
@(private)
_dial_tcp_from_endpoint :: proc(endpoint: Endpoint, options := default_tcp_options) -> (skt: TCP_Socket, err: Network_Error) {
if endpoint.port == 0 {
return 0, .Port_Required
}
@@ -70,31 +82,32 @@ dial_tcp_from_endpoint :: proc(endpoint: Endpoint, options := default_tcp_option
_ = set_option(skt, .Reuse_Address, true)
sockaddr := _endpoint_to_sockaddr(endpoint)
res := os.connect(Platform_Socket(skt), (^os.SOCKADDR)(&sockaddr), size_of(sockaddr))
res := os.connect(os.Socket(skt), (^os.SOCKADDR)(&sockaddr), size_of(sockaddr))
if res != os.ERROR_NONE {
err = Dial_Error(res)
return
}
if options.no_delay {
_ = set_option(sock, .TCP_Nodelay, true) // NOTE(tetra): Not vital to succeed; error ignored
_ = _set_option(sock, .TCP_Nodelay, true) // NOTE(tetra): Not vital to succeed; error ignored
}
return
}
bind :: proc(skt: Any_Socket, ep: Endpoint) -> (err: Network_Error) {
@(private)
_bind :: proc(skt: Any_Socket, ep: Endpoint) -> (err: Network_Error) {
sockaddr := _endpoint_to_sockaddr(ep)
s := any_socket_to_socket(skt)
res := os.bind(Platform_Socket(s), (^os.SOCKADDR)(&sockaddr), size_of(sockaddr))
res := os.bind(os.Socket(s), (^os.SOCKADDR)(&sockaddr), size_of(sockaddr))
if res != os.ERROR_NONE {
err = Bind_Error(res)
}
return
}
listen_tcp :: proc(interface_endpoint: Endpoint, backlog := 1000) -> (skt: TCP_Socket, err: Network_Error) {
@(private)
_listen_tcp :: proc(interface_endpoint: Endpoint, backlog := 1000) -> (skt: TCP_Socket, err: Network_Error) {
assert(backlog > 0 && i32(backlog) < max(i32))
family := family_from_endpoint(interface_endpoint)
@@ -110,7 +123,7 @@ listen_tcp :: proc(interface_endpoint: Endpoint, backlog := 1000) -> (skt: TCP_S
bind(sock, interface_endpoint) or_return
res := os.listen(Platform_Socket(skt), backlog)
res := os.listen(os.Socket(skt), backlog)
if res != os.ERROR_NONE {
err = Listen_Error(res)
return
@@ -119,11 +132,12 @@ listen_tcp :: proc(interface_endpoint: Endpoint, backlog := 1000) -> (skt: TCP_S
return
}
accept_tcp :: proc(sock: TCP_Socket, options := default_tcp_options) -> (client: TCP_Socket, source: Endpoint, err: Network_Error) {
@(private)
_accept_tcp :: proc(sock: TCP_Socket, options := default_tcp_options) -> (client: TCP_Socket, source: Endpoint, err: Network_Error) {
sockaddr: os.SOCKADDR_STORAGE_LH
sockaddrlen := c.int(size_of(sockaddr))
client_sock, ok := os.accept(Platform_Socket(sock), cast(^os.SOCKADDR) &sockaddr, &sockaddrlen)
client_sock, ok := os.accept(os.Socket(sock), cast(^os.SOCKADDR) &sockaddr, &sockaddrlen)
if ok != os.ERROR_NONE {
err = Accept_Error(ok)
return
@@ -131,23 +145,23 @@ accept_tcp :: proc(sock: TCP_Socket, options := default_tcp_options) -> (client:
client = TCP_Socket(client_sock)
source = _sockaddr_storage_to_endpoint(&sockaddr)
if options.no_delay {
_ = set_option(client, .TCP_Nodelay, true) // NOTE(tetra): Not vital to succeed; error ignored
_ = _set_option(client, .TCP_Nodelay, true) // NOTE(tetra): Not vital to succeed; error ignored
}
return
}
close :: proc(skt: Any_Socket) {
@(private)
_close :: proc(skt: Any_Socket) {
s := any_socket_to_socket(skt)
os.close(os.Handle(Platform_Socket(s)))
os.close(os.Handle(os.Socket(s)))
}
recv_tcp :: proc(skt: TCP_Socket, buf: []byte) -> (bytes_read: int, err: Network_Error) {
@(private)
_recv_tcp :: proc(skt: TCP_Socket, buf: []byte) -> (bytes_read: int, err: Network_Error) {
if len(buf) <= 0 {
return
}
res, ok := os.recv(Platform_Socket(skt), buf, 0)
res, ok := os.recv(os.Socket(skt), buf, 0)
if ok != os.ERROR_NONE {
err = TCP_Recv_Error(ok)
return
@@ -155,7 +169,8 @@ recv_tcp :: proc(skt: TCP_Socket, buf: []byte) -> (bytes_read: int, err: Network
return int(res), nil
}
recv_udp :: proc(skt: UDP_Socket, buf: []byte) -> (bytes_read: int, remote_endpoint: Endpoint, err: Network_Error) {
@(private)
_recv_udp :: proc(skt: UDP_Socket, buf: []byte) -> (bytes_read: int, remote_endpoint: Endpoint, err: Network_Error) {
if len(buf) <= 0 {
return
}
@@ -167,7 +182,7 @@ recv_udp :: proc(skt: UDP_Socket, buf: []byte) -> (bytes_read: int, remote_endpo
// and no error is returned.
// However, if you pass MSG_TRUNC here, 'res' will be the size of the incoming message, rather than how much was read.
// We can use this fact to detect this condition and return .Buffer_Too_Small.
res, ok := os.recvfrom(Platform_Socket(skt), buf, os.MSG_TRUNC, cast(^os.SOCKADDR) &from, &fromsize)
res, ok := os.recvfrom(os.Socket(skt), buf, os.MSG_TRUNC, cast(^os.SOCKADDR) &from, &fromsize)
if ok != os.ERROR_NONE {
err = UDP_Recv_Error(ok)
return
@@ -185,17 +200,12 @@ recv_udp :: proc(skt: UDP_Socket, buf: []byte) -> (bytes_read: int, remote_endpo
return
}
recv :: proc{recv_tcp, recv_udp}
// Repeatedly sends data until the entire buffer is sent.
// If a send fails before all data is sent, returns the amount
// sent up to that point.
send_tcp :: proc(skt: TCP_Socket, buf: []byte) -> (bytes_written: int, err: Network_Error) {
@(private)
_send_tcp :: proc(skt: TCP_Socket, buf: []byte) -> (bytes_written: int, err: Network_Error) {
for bytes_written < len(buf) {
limit := min(int(max(i32)), len(buf) - bytes_written)
remaining := buf[bytes_written:][:limit]
res, ok := os.send(Platform_Socket(skt), remaining, 0)
res, ok := os.send(os.Socket(skt), remaining, 0)
if ok != os.ERROR_NONE {
err = TCP_Send_Error(ok)
return
@@ -205,13 +215,10 @@ send_tcp :: proc(skt: TCP_Socket, buf: []byte) -> (bytes_written: int, err: Netw
return
}
// Sends a single UDP datagram packet.
//
// Datagrams are limited in size; attempting to send more than this limit at once will result in a Message_Too_Long error.
// UDP packets are not guarenteed to be received in order.
send_udp :: proc(skt: UDP_Socket, buf: []byte, to: Endpoint) -> (bytes_written: int, err: Network_Error) {
@(private)
_send_udp :: proc(skt: UDP_Socket, buf: []byte, to: Endpoint) -> (bytes_written: int, err: Network_Error) {
toaddr := _endpoint_to_sockaddr(to)
res, os_err := os.sendto(Platform_Socket(skt), buf, 0, cast(^os.SOCKADDR) &toaddr, size_of(toaddr))
res, os_err := os.sendto(os.Socket(skt), buf, 0, cast(^os.SOCKADDR) &toaddr, size_of(toaddr))
if os_err != os.ERROR_NONE {
err = UDP_Send_Error(os_err)
return
@@ -220,36 +227,18 @@ send_udp :: proc(skt: UDP_Socket, buf: []byte, to: Endpoint) -> (bytes_written:
return
}
send :: proc{send_tcp, send_udp}
Shutdown_Manner :: enum c.int {
Receive = c.int(os.SHUT_RD),
Send = c.int(os.SHUT_WR),
Both = c.int(os.SHUT_RDWR),
}
shutdown :: proc(skt: Any_Socket, manner: Shutdown_Manner) -> (err: Network_Error) {
@(private)
_shutdown :: proc(skt: Any_Socket, manner: Shutdown_Manner) -> (err: Network_Error) {
s := any_socket_to_socket(skt)
res := os.shutdown(Platform_Socket(s), int(manner))
res := os.shutdown(os.Socket(s), int(manner))
if res != os.ERROR_NONE {
return Shutdown_Error(res)
}
return
}
Socket_Option :: enum c.int {
Reuse_Address = c.int(os.SO_REUSEADDR),
Keep_Alive = c.int(os.SO_KEEPALIVE),
Out_Of_Bounds_Data_Inline = c.int(os.SO_OOBINLINE),
TCP_Nodelay = c.int(os.TCP_NODELAY),
Linger = c.int(os.SO_LINGER),
Receive_Buffer_Size = c.int(os.SO_RCVBUF),
Send_Buffer_Size = c.int(os.SO_SNDBUF),
Receive_Timeout = c.int(os.SO_RCVTIMEO_NEW),
Send_Timeout = c.int(os.SO_SNDTIMEO_NEW),
}
set_option :: proc(s: Any_Socket, option: Socket_Option, value: any, loc := #caller_location) -> Network_Error {
@(private)
_set_option :: proc(s: Any_Socket, option: Socket_Option, value: any, loc := #caller_location) -> Network_Error {
level := os.SOL_SOCKET if option != .TCP_Nodelay else os.IPPROTO_TCP
// NOTE(tetra, 2022-02-15): On Linux, you cannot merely give a single byte for a bool;
@@ -319,7 +308,7 @@ set_option :: proc(s: Any_Socket, option: Socket_Option, value: any, loc := #cal
}
skt := any_socket_to_socket(s)
res := os.setsockopt(Platform_Socket(skt), int(level), int(option), ptr, len)
res := os.setsockopt(os.Socket(skt), int(level), int(option), ptr, len)
if res != os.ERROR_NONE {
return Socket_Option_Error(res)
}