Sockets services: Difference between revisions

Line 73:

== Initalize ==

Takes a [[#~~BsdConfig~~]] (made-up name), the PID, the size of the transfer memory and a copy-handle of the latter.

Takes a [[#BsdBufferConfig]] (made-up name), the PID, the size of the transfer memory and a copy-handle of the latter.

=== ~~BsdConfig~~ ===

=== BsdBufferConfig ===

/// Configuration structure for bsdInitalize

typedef struct {

u32 version; ///< Observed 1 on 2.0 LibAppletWeb, 2 on 3.0.

u32 ~~tcpSendBufferSize~~; ///< Size of the TCP send buffer (initial or fixed).

u32 ~~tcpReceiveBufferSize~~; ///< Size of the TCP recieve buffer (initial or fixed).

u32 tcp_tx_buf_size; ///< Size of the TCP transfer (send) buffer (initial or fixed).

u32 ~~tcpSendBufferMaxSize~~; ///< Maximum size of the TCP send buffer. If it is 0, the ~~initial~~ size of the buffer is ~~actually~~ fixed.

u32 tcp_rx_buf_size; ///< Size of the TCP recieve buffer (initial or fixed).

u32 ~~tcpReceiveBufferMaxSize~~; ///< Maximum size of the TCP receive buffer. If it is 0, the ~~initial~~ size of the buffer is ~~actually~~ fixed.

u32 tcp_tx_buf_max_size; ///< Maximum size of the TCP transfer (send) buffer. If it is 0, the size of the buffer is fixed to its initial value.

u32 ~~udpSendBufferSize~~; ///< Size of the ~~TCP~~ send buffer (typically 0x2400 bytes).

u32 tcp_rx_buf_max_size; ///< Maximum size of the TCP receive buffer. If it is 0, the size of the buffer is fixed to its initial value.

u32 ~~udpSendBufferSize~~; ///< Size of the ~~TCP send~~ buffer (typically 0xA500 bytes).

~~s32 socketBufferEffiency~~; ///< Number of buffers for each socket (standard values range from 1 to 8).

u32 udp_tx_buf_size; ///< Size of the UDP transfer (send) buffer (typically 0x2400 bytes).

} BsdConfig;

u32 udp_rx_buf_size; ///< Size of the UDP receive buffer (typically 0xA500 bytes).

u32 sb_efficiency; ///< Number of buffers for each socket (standard values range from 1 to 8).

} BsdBufferConfig;

The transfer memory must be larger than a the computed size below. Should the transfer memory be smaller than that, the BSD sockets service would only send ZeroWindow packets (for TCP), resulting in a transfer rate not exceeding 1 byte/s.

static size_t _bsdGetTransferMemSizeForConfig(const BsdConfig *config)

{

u32 tcp_tx_buf_max_size = config->tcp_tx_buf_max_size != 0 ? config->tcp_tx_buf_max_size : config->tcp_tx_buf_size;

u32 tcp_rx_buf_max_size = config->tcp_rx_buf_max_size != 0 ? config->tcp_rx_buf_max_size : config->tcp_rx_buf_size;

u32 sum = tcp_tx_buf_max_size + tcp_rx_buf_max_size + config->udp_tx_buf_size + config->udp_rx_buf_size;

sum = ((sum + 0xFFF) >> 12) << 12; // page round-up

return (size_t)(config->sb_efficiency * sum);

}

= sfdnsres =

@@ Line 73: / Line 73: @@
 == Initalize ==
-Takes a [[#BsdConfig]] (made-up name), the PID, the size of the transfer memory and a copy-handle of the latter.
+Takes a [[#BsdBufferConfig]] (made-up name), the PID, the size of the transfer memory and a copy-handle of the latter.
-=== BsdConfig ===
+=== BsdBufferConfig ===
+ /// Configuration structure for bsdInitalize
   typedef struct  {
-      u32 version;                    ///< Observed 1 on 2.0 LibAppletWeb, 2 on 3.0.
+      u32 version;                ///< Observed 1 on 2.0 LibAppletWeb, 2 on 3.0.
-      u32 tcpSendBufferSize;          ///< Size of the TCP send buffer (initial or fixed).
-      u32 tcpReceiveBufferSize;       ///< Size of the TCP recieve buffer (initial or fixed).
+      u32 tcp_tx_buf_size;        ///< Size of the TCP transfer (send) buffer (initial or fixed).
-      u32 tcpSendBufferMaxSize;       ///< Maximum size of the TCP send buffer. If it is 0, the initial size of the buffer is actually fixed.
+      u32 tcp_rx_buf_size;        ///< Size of the TCP recieve buffer (initial or fixed).
-      u32 tcpReceiveBufferMaxSize;    ///< Maximum size of the TCP receive buffer. If it is 0, the initial size of the buffer is actually fixed.
+      u32 tcp_tx_buf_max_size;    ///< Maximum size of the TCP transfer (send) buffer. If it is 0, the size of the buffer is fixed to its initial value.
-      u32 udpSendBufferSize;          ///< Size of the TCP send buffer (typically 0x2400 bytes).
+      u32 tcp_rx_buf_max_size;    ///< Maximum size of the TCP receive buffer. If it is 0, the size of the buffer is fixed to its initial value.
-      u32 udpSendBufferSize;          ///< Size of the TCP send buffer (typically 0xA500 bytes).
-      s32 socketBufferEffiency;       ///< Number of buffers for each socket (standard values range from 1 to 8).
+      u32 udp_tx_buf_size;        ///< Size of the UDP transfer (send) buffer (typically 0x2400 bytes).
-  } BsdConfig;
+      u32 udp_rx_buf_size;        ///< Size of the UDP receive buffer (typically 0xA500 bytes).
+      u32 sb_efficiency;          ///< Number of buffers for each socket (standard values range from 1 to 8).
+  } BsdBufferConfig;
+The transfer memory must be larger than a the computed size below. Should the transfer memory be smaller than that, the BSD sockets service would only send ZeroWindow packets (for TCP), resulting in a transfer rate not exceeding 1 byte/s.
+ static size_t _bsdGetTransferMemSizeForConfig(const BsdConfig *config)
+ {
+     u32 tcp_tx_buf_max_size = config->tcp_tx_buf_max_size != 0 ? config->tcp_tx_buf_max_size : config->tcp_tx_buf_size;
+     u32 tcp_rx_buf_max_size = config->tcp_rx_buf_max_size != 0 ? config->tcp_rx_buf_max_size : config->tcp_rx_buf_size;
+     u32 sum = tcp_tx_buf_max_size + tcp_rx_buf_max_size + config->udp_tx_buf_size + config->udp_rx_buf_size;
+     sum = ((sum + 0xFFF) >> 12) << 12; // page round-up
+     return (size_t)(config->sb_efficiency * sum);
+ }
 = sfdnsres =