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-rw-r--r--ACE/apps/JAWS/clients/Blobby/Blob_Handler.h118
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diff --git a/ACE/apps/JAWS/clients/Blobby/Blob_Handler.h b/ACE/apps/JAWS/clients/Blobby/Blob_Handler.h
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+/* -*- C++ -*- */
+// $Id$
+
+//============================================================================
+//
+// = LIBRARY
+// JAWS
+//
+// = FILENAME
+// Blob.h
+//
+// = DESCRIPTION
+// ACE_Blob_Handler is a base class for ACE_Blob_Reader and
+// ACE_Blob_Writer which are created in response to calls to
+// read/write, as appropriate
+//
+// = AUTHOR
+// Prashant Jain and Sumedh Mungee
+//
+//============================================================================
+
+#ifndef ACE_BLOB_HANDLER_H
+#define ACE_BLOB_HANDLER_H
+
+#include "ace/config-all.h"
+
+#if !defined (ACE_LACKS_PRAGMA_ONCE)
+# pragma once
+#endif /* ACE_LACKS_PRAGMA_ONCE */
+
+#include "ace/SOCK_Stream.h"
+#include "ace/Svc_Handler.h"
+#include "ace/Message_Block.h"
+
+class ACE_Blob_Handler : public ACE_Svc_Handler <ACE_SOCK_STREAM, ACE_NULL_SYNCH>
+ // = TITLE
+ // Blob is intended to provide application API to
+ // classes that wish to do network i/o at a very
+ // high level of abstraction.
+ //
+ // = This class provides the ability to retrieve data from
+ // the network, of specified length and offset, and potentially
+ // use any protocol "under the hood" to do so. It currently
+ // uses HTTP. See Blob_Handler also.
+{
+public:
+ ACE_Blob_Handler (void);
+ // Null constructor, insures that it works properly with Connector
+
+ ACE_Blob_Handler (ACE_Message_Block *mb,
+ size_t length,
+ size_t offset,
+ ACE_TCHAR *filename);
+ // Always use this constructor to make Blob_Handlers
+
+ int byte_count (void);
+ // returns the number of bytes read/written in the last operation.
+
+ virtual int open (void * = 0);
+ // Activate this instance of the <ACE_Blob_Handler>
+
+ virtual int close (u_long flags = 0);
+ // Close down the Blob
+
+ ~ACE_Blob_Handler (void);
+
+protected:
+ virtual int send_request (void);
+ virtual int receive_reply (void);
+
+ ACE_Message_Block *mb_;
+ size_t length_;
+ size_t offset_;
+ ACE_TCHAR *filename_;
+ int bytecount_;
+ enum
+ {
+ MAX_HEADER_SIZE = 2048
+ // The handler assumes that the first 2048 bytes of a server response
+ // contains the header
+ };
+};
+
+class ACE_Blob_Reader : public ACE_Blob_Handler
+{
+public:
+ ACE_Blob_Reader (ACE_Message_Block *mb,
+ size_t length,
+ size_t offset,
+ ACE_TCHAR *filename,
+ const char *request_prefix = "GET",
+ const char *request_suffix = "HTTP/1.0\r\n\r\n");
+
+private:
+ int send_request (void);
+ int receive_reply (void);
+ const char *request_prefix_;
+ const char *request_suffix_;
+};
+
+class ACE_Blob_Writer : public ACE_Blob_Handler
+{
+public:
+ ACE_Blob_Writer (ACE_Message_Block *mb,
+ size_t length,
+ size_t offset,
+ ACE_TCHAR *filename,
+ const char *request_prefix = "PUT",
+ const char *request_suffix = "HTTP/1.0\nContent-length:");
+
+private:
+ int send_request (void);
+ int receive_reply (void);
+ const char *request_prefix_;
+ const char *request_suffix_;
+};
+
+#endif /* ACE_BLOB_HANDLER_H */