fres/contract/fres_container_internal.h

   1 /**
   2  * @file   fres_container_internal.h
   3  * @author Michal Sojka <sojkam1@fel.cvut.cz>
   4  *
   5  * @brief  Internal interface to fres_container.
   6  *
   7  * This header should only be included by files in frsh/cm library.
   8  *
   9  */
  10 #ifndef FRES_CONTAINER_INTERNAL_H
  11 #define FRES_CONTAINER_INTERNAL_H
  12
  13 #include <fres_contract_idl.h>
  14
  15 /** State of the block in container. */
  16 enum fres_block_state {
  17         /** There is no such block in the container. */
  18         FRES_BLOCK_EMPTY,
  19         /** The container contains the block in the deserialized
  20          * form. */
  21         FRES_BLOCK_DATA,
  22         /** The container contains the block in the serialized form
  23          * (sequence of octets).*/
  24         FRES_BLOCK_STREAM
  25 };
  26
  27 #define FRES_BLOCK_FLAG_ENDIAN_m 0x0001
  28 #define FRES_BLOCK_LITTLE_ENDIAN 0x0001
  29
  30 /**< Unserialized (unknown) contracts blocks */
  31 typedef struct fres_block_stream {
  32         void *data; /**< Serialized data */
  33         CORBA_unsigned_short flags; /**< Flags: bit 1 - little endian */
  34         size_t length;              /**< Length of the stream */
  35 } fres_block_stream_t;
  36
  37 struct fres_block {
  38         enum fres_block_state state;
  39         union {
  40                 /** Pointer to data according to param_type
  41                  * (state == FRES_BLOCK_DATA) */
  42                 void *data;
  43
  44                 /** Unserialized (unknown) data
  45                  * (state == FRES_BLOCK_STREAM) */
  46                 fres_block_stream_t stream;
  47         } u;
  48 };
  49
  50 struct fres_container {
  51         struct fres_block blocks[FRES_NUM_BLOCKS];
  52 };
  53
  54 #define FRES_BLOCK_TYPE_VALID(type)     \
  55         ((type) < FRES_NUM_BLOCKS &&    \
  56          (type) >= 0)
  57
  58
  59 #endif