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dsa.c

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  • Forked from Nettle / nettle
    Source project has a limited visibility.
    write_buffer.h 1.71 KiB
    /* write_buffer.h
     *
     *
     *
     * $Id$ */
    
    /* lsh, an implementation of the ssh protocol
     *
     * Copyright (C) 1998 Niels Möller
     *
     * 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.
     */
    
    #ifndef LSH_WRITE_BUFFER_H_INCLUDED
    #define LSH_WRITE_BUFFER_H_INCLUDED
    
    #include "abstract_io.h"
    
    /* For the packet queue */
    struct node
    {
      struct lsh_object header;
      
      struct node *next;
      struct node *prev;
      struct lsh_string *packet;
    };
    
    struct write_buffer
    {
      struct abstract_write super;
      
      UINT32 block_size;
    
      int empty;
    
      /* If non-zero, don't accept any more data. The i/o-channel shoudl be closed
       * once the current buffers are flushed. */
      int closed; 
    #if 0
      int try_write;
    #endif
      
      struct node *head;
      struct node *tail;
    
      UINT32 pos; /* Partial packet */
      struct lsh_string *partial;
    
      UINT32 start;
      UINT32 end;
      UINT8 buffer[1]; /* Real size is twice the blocksize */
    };
    
    struct write_buffer *write_buffer_alloc(UINT32 size);
    int write_buffer_pre_write(struct write_buffer *buffer);
    void write_buffer_close(struct write_buffer *buffer);
    
    #endif /* LSH_WRITE_BUFFER_H_INCLUDED */