DTL_READ
The DTL_READ functions allow the client application to read data from processor data tables. This function has three forms: DTL_READ is the asynchronous version; DTL_READ_W is the synchronous version; and. DTL_READ_CB is the callback version.
DTL_RETVAL DTL_READ(
name_id
, variable
, io_stat
, wait_id
, timeout
)UNSIGNED LONG name_id ; | /* data item handle |
UNSIGNED CHAR * variable ; | /* pointer to data buffer |
UNSIGNED LONG * io_stat ; | /* pointer to I/O status buffer |
UNSIGNED LONG wait_id ; | /* wait identifier |
UNSIGNED LONG timeout ; | /* I/O timeout value |
DTL_RETVAL DTL_READ_W(
name_id, variable, io_stat, timeout
)UNSIGNED LONG name_id ; | /* data item handle |
UNSIGNED CHAR * variable ; | /* pointer to data buffer |
UNSIGNED LONG * io_stat ; | /* pointer to I/O status buffer |
UNSIGNED LONG timeout ; | /* I/O timeout value |
DTL_RETVAL DTL_READ_CB(
name_id, variable, timeout, callback_proc, callback_param
)UNSIGNED LONG name_id ; | /* data item handle |
UNSIGNED CHAR * variable ; | /* pointer to data buffer |
UNSIGNED LONG timeout ; | /* I/O timeout value |
DTL_IO_CALLBACK_PROC callback_proc ; | /* callback procedure number |
UNSIGNED LONG callback_param ; | /* callback parameter value |
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