modules/include/VM/dvm_types.h

   1 /**
   2  * \file dvm_types.h
   3  * \brief DVM data type
   4  * \author Ram Kumar {ram@ee.ucla.edu}
   5  */
   6
   7 #ifndef __DVM_TYPES_H__
   8 #define __DVM_TYPES_H__
   9
  10 #include <VM/Dvm.h>
  11 #include <VM/DvmConstants.h>
  12 // Ram - For the rest of the data types look at Dvm.h !! :-)
  13
  14
  15 //----------------------------------------------------------------------------
  16 // TYPEDEFS
  17 //----------------------------------------------------------------------------
  18 #define NULL_CAPSULE                    (DVM_CAPSULE_NUM + 1)
  19 #define DVM_STATE_SIZE                  sizeof(DvmState)
  20 #define DVM_NUM_SCRIPT_BLOCKS           2
  21 #define DVM_DEFAULT_MEM_ALLOC_SIZE      (DVM_NUM_SCRIPT_BLOCKS*DVM_STATE_SIZE)
  22
  23 typedef struct {
  24   DvmState *scripts[DVM_CAPSULE_NUM];
  25   uint8_t script_block_owners[DVM_NUM_SCRIPT_BLOCKS];
  26   DvmState *script_block_ptr;
  27 } DVMResourceManager_state_t;
  28
  29 typedef struct
  30 {
  31   uint8_t usedVars[DVM_CAPSULE_NUM][(DVM_LOCK_COUNT + 7) / 8];
  32   DvmQueue readyQueue;
  33   uint8_t libraries;
  34   uint8_t extlib_module[4];
  35   DvmLock locks[DVM_LOCK_COUNT];
  36 } DVMConcurrencyMngr_state_t;
  37
  38 typedef struct {
  39   func_cb_ptr ext_execute[4];
  40   DvmQueue runQueue;
  41   DvmContext* runningContext;
  42   DvmErrorMsg errorMsg;
  43   uint8_t libraries;
  44   struct {
  45   uint8_t inErrorState  : 1;
  46   uint8_t errorFlipFlop : 1;
  47   uint8_t taskRunning   : 1;
  48   uint8_t halted        : 1;
  49   } flags;
  50 } DVMScheduler_state_t;
  51
  52 typedef struct {
  53   DvmState* stateBlock[DVM_CAPSULE_NUM];
  54 } DVMEventHandler_state_t;
  55
  56 typedef struct
  57 {
  58   uint8_t busy;                   // for GET_DATA
  59   DvmContext *executing;          // for GET_DATA
  60   DvmQueue getDataWaitQueue;      // for GET_DATA
  61   DvmContext *nop_executing;      // for NOP
  62   uint16_t delay_cnt;             // for NOP
  63   DvmDataBuffer buffers[DVM_NUM_BUFS];
  64   DvmStackVariable shared_vars[DVM_NUM_SHARED_VARS];
  65   int32_t fl_post;                      //for posting a int32_t/float directly
  66 } DVMBasiclib_state_t;
  67
  68
  69 typedef struct _str_dvm_state {
  70   func_cb_ptr execute_syncall;
  71   DVMScheduler_state_t sched_st; // This should be the second field (because of fn. ptr. ptr.)
  72   DVMResourceManager_state_t resmgr_st;
  73   DVMEventHandler_state_t evhdlr_st;
  74   DVMConcurrencyMngr_state_t conmgr_st;
  75   DVMBasiclib_state_t basiclib_st;
  76 } dvm_state_t;
  77
  78
  79 #endif//__DVM_TYPES_H__