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task #7865 (implement non-blocking send operation)

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goldsimon
2010-02-13 17:08:40 +00:00
parent 49c6ce3703
commit 0792effc2a
5 changed files with 92 additions and 40 deletions
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14
src/api/sockets.c
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@@ -683,6 +683,7 @@ lwip_send(int s, const void *data, size_t size, int flags)
{
struct lwip_socket *sock;
err_t err;
u8_t write_flags;
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d, data=%p, size=%"SZT_F", flags=0x%x)\n",
s, data, size, flags));
@@ -700,7 +701,18 @@ lwip_send(int s, const void *data, size_t size, int flags)
#endif /* (LWIP_UDP || LWIP_RAW) */
}
err = netconn_write(sock->conn, data, size, NETCONN_COPY | ((flags & MSG_MORE)?NETCONN_MORE:0));
if ((flags & MSG_DONTWAIT) || netconn_is_nonblocking(sock->conn)) {
if ((size > TCP_SND_BUF) || ((size / TCP_MSS) > TCP_SND_QUEUELEN)) {
/* too much data to ever send nonblocking! */
sock_set_errno(sock, EMSGSIZE);
return -1;
}
}
write_flags = NETCONN_COPY |
((flags & MSG_MORE) ? NETCONN_MORE : 0) |
((flags & MSG_DONTWAIT) ? NETCONN_DONTBLOCK : 0);
err = netconn_write(sock->conn, data, size, write_flags);
LWIP_DEBUGF(SOCKETS_DEBUG, ("lwip_send(%d) err=%d size=%"SZT_F"\n", s, err, size));
sock_set_errno(sock, err_to_errno(err));