palacios/src/interfaces/vmm_keyed_stream.c

   1 /*
   2  * This file is part of the Palacios Virtual Machine Monitor developed
   3  * by the V3VEE Project with funding from the United States National
   4  * Science Foundation and the Department of Energy.
   5  *
   6  * The V3VEE Project is a joint project between Northwestern University
   7  * and the University of New Mexico.  You can find out more at
   8  * http://www.v3vee.org
   9  *
  10  * Copyright (c) 2011, Peter Dinda <pdinda@northwestern.edu>
  11  * Copyright (c) 2011, The V3VEE Project <http://www.v3vee.org>
  12  * All rights reserved.
  13  *
  14  * Author: Peter Dinda <pdinda@northwestern.edu>
  15  *
  16  * This is free software.  You are permitted to use,
  17  * redistribute, and modify it as specified in the file "V3VEE_LICENSE".
  18  */
  19
  20
  21 #include <interfaces/vmm_keyed_stream.h>
  22 #include <palacios/vmm.h>
  23 #include <palacios/vmm_debug.h>
  24 #include <palacios/vmm_types.h>
  25 #include <palacios/vm_guest.h>
  26
  27 struct v3_keyed_stream_hooks * keyed_stream_hooks = 0;
  28
  29 v3_keyed_stream_t     v3_keyed_stream_open(char *url, v3_keyed_stream_open_t open_type)
  30 {
  31     V3_ASSERT(keyed_stream_hooks != NULL);
  32     V3_ASSERT(keyed_stream_hooks->open != NULL);
  33
  34     return keyed_stream_hooks->open(url,open_type);
  35 }
  36
  37
  38
  39 void                  v3_keyed_stream_close(v3_keyed_stream_t stream)
  40 {
  41     V3_ASSERT(keyed_stream_hooks != NULL);
  42     V3_ASSERT(keyed_stream_hooks->close != NULL);
  43
  44     return keyed_stream_hooks->close(stream);
  45
  46 }
  47
  48
  49 void v3_keyed_stream_preallocate_hint_key(v3_keyed_stream_t stream, char *key, uint64_t size)
  50 {
  51     V3_ASSERT(keyed_stream_hooks != NULL);
  52     V3_ASSERT(keyed_stream_hooks->preallocate_hint_key != NULL);
  53
  54     return keyed_stream_hooks->preallocate_hint_key(stream,key,size);
  55 }
  56
  57 v3_keyed_stream_key_t v3_keyed_stream_open_key(v3_keyed_stream_t stream, char *key)
  58 {
  59     V3_ASSERT(keyed_stream_hooks != NULL);
  60     V3_ASSERT(keyed_stream_hooks->open_key != NULL);
  61
  62     return keyed_stream_hooks->open_key(stream,key);
  63 }
  64
  65
  66 void                  v3_keyed_stream_close_key(v3_keyed_stream_t stream,  char *key)
  67 {
  68     V3_ASSERT(keyed_stream_hooks != NULL);
  69     V3_ASSERT(keyed_stream_hooks->close_key != NULL);
  70
  71     return keyed_stream_hooks->close_key(stream,key);
  72 }
  73
  74
  75 sint64_t              v3_keyed_stream_write_key(v3_keyed_stream_t stream,
  76                                                 v3_keyed_stream_key_t key,
  77                                                 void *buf,
  78                                                 sint64_t len)
  79 {
  80     V3_ASSERT(keyed_stream_hooks != NULL);
  81     V3_ASSERT(keyed_stream_hooks->write_key != NULL);
  82
  83     return keyed_stream_hooks->write_key(stream,key,buf,len);
  84 }
  85
  86 sint64_t              v3_keyed_stream_read_key(v3_keyed_stream_t stream,
  87                                                v3_keyed_stream_key_t key,
  88                                                void *buf,
  89                                                sint64_t len)
  90 {
  91     V3_ASSERT(keyed_stream_hooks != NULL);
  92     V3_ASSERT(keyed_stream_hooks->read_key != NULL);
  93
  94     return keyed_stream_hooks->read_key(stream,key,buf,len);
  95 }
  96
  97
  98
  99 void V3_Init_Keyed_Streams(struct v3_keyed_stream_hooks * hooks) {
 100     keyed_stream_hooks = hooks;
 101     PrintDebug("V3 keyed stream support inited\n");
 102
 103     return;
 104 }