--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/project_files/Android-build/SDL-android-project/jni/sdl_net/SDLnetselect.c Thu Jun 23 14:30:04 2011 +0200
@@ -0,0 +1,226 @@
+/*
+ SDL_net: An example cross-platform network library for use with SDL
+ Copyright (C) 1997-2004 Sam Lantinga
+
+ This library is free software; you can redistribute it and/or
+ modify it under the terms of the GNU Library General Public
+ License as published by the Free Software Foundation; either
+ version 2 of the License, or (at your option) any later version.
+
+ This library is distributed in the hope that it will be useful,
+ but WITHOUT ANY WARRANTY; without even the implied warranty of
+ MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+ Library General Public License for more details.
+
+ You should have received a copy of the GNU Library General Public
+ License along with this library; if not, write to the Free
+ Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+ Sam Lantinga
+ slouken@libsdl.org
+*/
+
+/* $Id: SDLnetselect.c 1192 2004-01-04 17:41:55Z slouken $ */
+
+#include "SDLnetsys.h"
+#include "SDL_net.h"
+
+/* The select() API for network sockets */
+
+struct SDLNet_Socket {
+ int ready;
+ SOCKET channel;
+#ifdef MACOS_OPENTRANSPORT
+ OTEventCode curEvent;
+#endif
+};
+
+struct _SDLNet_SocketSet {
+ int numsockets;
+ int maxsockets;
+ struct SDLNet_Socket **sockets;
+};
+
+/* Allocate a socket set for use with SDLNet_CheckSockets()
+ This returns a socket set for up to 'maxsockets' sockets, or NULL if
+ the function ran out of memory.
+ */
+SDLNet_SocketSet SDLNet_AllocSocketSet(int maxsockets)
+{
+ struct _SDLNet_SocketSet *set;
+ int i;
+
+ set = (struct _SDLNet_SocketSet *)malloc(sizeof(*set));
+ if ( set != NULL ) {
+ set->numsockets = 0;
+ set->maxsockets = maxsockets;
+ set->sockets = (struct SDLNet_Socket **)malloc
+ (maxsockets*sizeof(*set->sockets));
+ if ( set->sockets != NULL ) {
+ for ( i=0; i<maxsockets; ++i ) {
+ set->sockets[i] = NULL;
+ }
+ } else {
+ free(set);
+ set = NULL;
+ }
+ }
+ return(set);
+}
+
+/* Add a socket to a set of sockets to be checked for available data */
+int SDLNet_AddSocket(SDLNet_SocketSet set, SDLNet_GenericSocket sock)
+{
+ if ( sock != NULL ) {
+ if ( set->numsockets == set->maxsockets ) {
+ SDLNet_SetError("socketset is full");
+ return(-1);
+ }
+ set->sockets[set->numsockets++] = (struct SDLNet_Socket *)sock;
+ }
+ return(set->numsockets);
+}
+
+/* Remove a socket from a set of sockets to be checked for available data */
+int SDLNet_DelSocket(SDLNet_SocketSet set, SDLNet_GenericSocket sock)
+{
+ int i;
+
+ if ( sock != NULL ) {
+ for ( i=0; i<set->numsockets; ++i ) {
+ if ( set->sockets[i] == (struct SDLNet_Socket *)sock ) {
+ break;
+ }
+ }
+ if ( i == set->numsockets ) {
+ SDLNet_SetError("socket not found in socketset");
+ return(-1);
+ }
+ --set->numsockets;
+ for ( ; i<set->numsockets; ++i ) {
+ set->sockets[i] = set->sockets[i+1];
+ }
+ }
+ return(set->numsockets);
+}
+
+/* This function checks to see if data is available for reading on the
+ given set of sockets. If 'timeout' is 0, it performs a quick poll,
+ otherwise the function returns when either data is available for
+ reading, or the timeout in milliseconds has elapsed, which ever occurs
+ first. This function returns the number of sockets ready for reading,
+ or -1 if there was an error with the select() system call.
+*/
+#ifdef MACOS_OPENTRANSPORT
+int SDLNet_CheckSockets(SDLNet_SocketSet set, Uint32 timeout)
+{
+Uint32 stop;
+int numReady;
+
+ /* Loop, polling the network devices */
+
+ stop = SDL_GetTicks() + timeout;
+
+ do
+ {
+ OTResult status;
+ size_t numBytes;
+ int i;
+
+ numReady = 0;
+
+ for (i = set->numsockets-1;i >= 0;--i)
+ {
+ status = OTLook( set->sockets[i]->channel );
+ if( status > 0 )
+ {
+ switch( status )
+ {
+ case T_UDERR:
+ OTRcvUDErr( set->sockets[i]->channel , nil);
+ break;
+ case T_DISCONNECT:
+ OTRcvDisconnect( set->sockets[i]->channel, nil );
+ break;
+ case T_ORDREL:
+ OTRcvOrderlyDisconnect(set->sockets[i]->channel );
+ break;
+ case T_CONNECT:
+ OTRcvConnect( set->sockets[i]->channel, nil );
+ break;
+
+
+ default:
+ set->sockets[i]->ready = 1;
+ ++numReady;
+ }
+ }
+ else if( OTCountDataBytes(set->sockets[i]->channel, &numBytes ) != kOTNoDataErr )
+ {
+ set->sockets[i]->ready = 1;
+ ++numReady;
+ }
+ else
+ set->sockets[i]->ready = 0;
+ }
+
+ } while (!numReady && (SDL_GetTicks() < stop));
+
+ return(numReady);
+}
+#else
+int SDLNet_CheckSockets(SDLNet_SocketSet set, Uint32 timeout)
+{
+ int i;
+ SOCKET maxfd;
+ int retval;
+ struct timeval tv;
+ fd_set mask;
+
+ /* Find the largest file descriptor */
+ maxfd = 0;
+ for ( i=set->numsockets-1; i>=0; --i ) {
+ if ( set->sockets[i]->channel > maxfd ) {
+ maxfd = set->sockets[i]->channel;
+ }
+ }
+
+ /* Check the file descriptors for available data */
+ do {
+ errno = 0;
+
+ /* Set up the mask of file descriptors */
+ FD_ZERO(&mask);
+ for ( i=set->numsockets-1; i>=0; --i ) {
+ FD_SET(set->sockets[i]->channel, &mask);
+ }
+
+ /* Set up the timeout */
+ tv.tv_sec = timeout/1000;
+ tv.tv_usec = (timeout%1000)*1000;
+
+ /* Look! */
+ retval = select(maxfd+1, &mask, NULL, NULL, &tv);
+ } while ( errno == EINTR );
+
+ /* Mark all file descriptors ready that have data available */
+ if ( retval > 0 ) {
+ for ( i=set->numsockets-1; i>=0; --i ) {
+ if ( FD_ISSET(set->sockets[i]->channel, &mask) ) {
+ set->sockets[i]->ready = 1;
+ }
+ }
+ }
+ return(retval);
+}
+#endif /* MACOS_OPENTRANSPORT */
+
+/* Free a set of sockets allocated by SDL_NetAllocSocketSet() */
+extern void SDLNet_FreeSocketSet(SDLNet_SocketSet set)
+{
+ if ( set ) {
+ free(set->sockets);
+ free(set);
+ }
+}
+