our current experimental Neutrino branch

git-svn-id: file:///home/bas/coolstream_public_svn/THIRDPARTY/applications/neutrino-experimental@27 e54a6e83-5905-42d5-8d5c-058d10e6a962

lib/connection/basicsocket.cpp

@@ -0,0 +1,140 @@
+/*
+ * $Header: /cvs/tuxbox/apps/misc/libs/libconnection/basicsocket.cpp,v 1.2 2003/02/24 21:14:15 thegoodguy Exp $
+ *
+ * Basic Socket Class - The Tuxbox Project
+ *
+ * (C) 2003 by thegoodguy <thegoodguy@berlios.de>
+ *
+ * License: GPL
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program 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 General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
+ *
+ */
+
+#include "basicsocket.h"
+
+#include <errno.h>
+#include <stdio.h>
+#include <sys/socket.h>
+#include <sys/types.h>
+#include <unistd.h>
+
+bool send_data(int fd, const void * data, const size_t size, const timeval timeout)
+{
+	fd_set       writefds;
+	timeval      tv;
+	const void * buffer;
+	size_t       n;
+	int          rc;
+
+	n = size;
+
+	while (n > 0)
+	{
+		buffer = (void *)((char *)data + (size - n));
+		rc = ::send(fd, buffer, n, MSG_DONTWAIT | MSG_NOSIGNAL);
+		
+		if (rc == -1)
+		{
+			perror("[basicsocket] send_data");
+char * buf = (char *) data;
+printf("send_data: errno %d data %X\n", errno, buf[0]);
+			//if (errno == EPIPE)
+			if (errno == EPIPE || errno == ESPIPE)
+				return false;
+			
+			FD_ZERO(&writefds);
+			FD_SET(fd, &writefds);
+			
+			tv = timeout;
+			
+			rc = select(fd + 1, NULL, &writefds, NULL, &tv);
+			
+			if (rc == 0)
+			{
+				printf("[basicsocket] send timed out.\n");
+				return false;
+			}
+			if (rc == -1)
+			{
+				perror("[basicsocket] send_data select");
+				return false;
+			}
+		}
+		else
+			n -= rc;
+	}
+	return true;
+}
+
+
+bool receive_data(int fd, void * data, const size_t size, const timeval timeout)
+{
+	fd_set    readfds;
+	timeval   tv;
+	void    * buffer;
+	size_t    n;
+	int       rc;
+
+	n = size;
+
+	while (n > 0)
+	{
+		FD_ZERO(&readfds);
+		FD_SET(fd, &readfds);
+		
+		tv = timeout;
+		
+		rc = select(fd + 1, &readfds, NULL, NULL, &tv);
+			
+		if (rc == 0)
+		{
+			printf("[basicsocket] receive timed out.\n");
+			return false;
+		}
+		if (rc == -1)
+		{
+			perror("[basicsocket] receive_data select");
+			return false;
+		}
+		buffer = (void *)((char *)data + (size - n));
+		rc = ::recv(fd, buffer, n, MSG_DONTWAIT | MSG_NOSIGNAL);
+		
+		if ((rc == 0) || (rc == -1))
+		{
+			if (rc == -1)
+			{
+				perror("[basicsocket] receive_data");
+
+				//if (errno == EPIPE)
+				if (errno == EPIPE || errno == ESPIPE)
+					return false;
+			}
+			else
+			{
+				/*
+				 * silently return false
+				 *
+				 * printf("[basicsocket] no more data\n");
+				 */
+				return false;
+			}
+
+		}
+		else
+			n -= rc;
+	}
+	return true;
+}