Add Socket Libraries.

[mirror_edk2.git] / StdLib / BsdSocketLib / send.c

diff --git a/StdLib/BsdSocketLib/send.c b/StdLib/BsdSocketLib/send.c
new file mode 100644 (file)
index 0000000..e0ec643
--- /dev/null
+++ b/StdLib/BsdSocketLib/send.c
@@ -0,0 +1,97 @@
+/** @file\r
+  Implement the send API.\r
+\r
+  Copyright (c) 2011, Intel Corporation\r
+  All rights reserved. This program and the accompanying materials\r
+  are licensed and made available under the terms and conditions of the BSD License\r
+  which accompanies this distribution.  The full text of the license may be found at\r
+  http://opensource.org/licenses/bsd-license.php\r
+\r
+  THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r
+  WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r
+\r
+**/\r
+\r
+#include <SocketInternals.h>\r
+\r
+\r
+/**\r
+  Send data using a network connection.\r
+\r
+  The ::send routine queues data to the network for transmission.\r
+  The\r
+  <a href="http://pubs.opengroup.org/onlinepubs/9699919799/functions/send.html">POSIX</a>\r
+  documentation is available online.\r
+\r
+  @param [in] s         Socket file descriptor returned from ::socket.\r
+\r
+  @param [in] buffer    Address of a buffer containing the data to send.\r
+    \r
+  @param [in] length    Length of the buffer in bytes.\r
+\r
+  @param [in] flags     Message control flags\r
+\r
+  @returns    ::send returns the number of data bytes that were\r
+              sent and -1 when an error occurs.  In the case of\r
+              an error, errno contains more details.\r
+\r
+ **/\r
+ssize_t\r
+send (\r
+  int s,\r
+  CONST void * buffer,\r
+  size_t length,\r
+  int flags\r
+  )\r
+{\r
+  ssize_t LengthInBytes;\r
+  CONST UINT8 * pData;\r
+  struct __filedes * pDescriptor;\r
+  EFI_SOCKET_PROTOCOL * pSocketProtocol;\r
+  EFI_STATUS Status;\r
+\r
+  //\r
+  //  Assume failure\r
+  //\r
+  LengthInBytes = -1;\r
+\r
+  //\r
+  //  Locate the context for this socket\r
+  //\r
+  pSocketProtocol = BslFdToSocketProtocol ( s,\r
+                                            &pDescriptor,\r
+                                            &errno );\r
+  if ( NULL != pSocketProtocol ) {\r
+    //\r
+    //  Send the data using the socket\r
+    //\r
+    pData = buffer;\r
+    do {\r
+      errno = 0;\r
+      Status = pSocketProtocol->pfnSend ( pSocketProtocol,\r
+                                          flags,\r
+                                          length,\r
+                                          pData,\r
+                                          (size_t *)&LengthInBytes,\r
+                                          NULL,\r
+                                          0,\r
+                                          &errno );\r
+      if ( EFI_ERROR ( Status )) {\r
+        LengthInBytes = -1;\r
+        break;\r
+      }\r
+\r
+      //\r
+      //  Account for the data sent\r
+      //\r
+      pData += LengthInBytes;\r
+      length -= LengthInBytes;\r
+      // TODO: Add non-blocking check\r
+    } while (( 0 != length ) && ( EFI_NOT_READY == Status ));\r
+  }\r
+\r
+  //\r
+  //  Return the number of data bytes sent, -1 for errors\r
+  //\r
+  return (INT32)LengthInBytes;\r
+}\r