/********************************************************************************       XILINX IS PROVIDING THIS DESIGN, CODE, OR INFORMATION "AS IS"*       AS A COURTESY TO YOU, SOLELY FOR USE IN DEVELOPING PROGRAMS AND*       SOLUTIONS FOR XILINX DEVICES.  BY PROVIDING THIS DESIGN, CODE,*       OR INFORMATION AS ONE POSSIBLE IMPLEMENTATION OF THIS FEATURE,*       APPLICATION OR STANDARD, XILINX IS MAKING NO REPRESENTATION*       THAT THIS IMPLEMENTATION IS FREE FROM ANY CLAIMS OF INFRINGEMENT,*       AND YOU ARE RESPONSIBLE FOR OBTAINING ANY RIGHTS YOU MAY REQUIRE*       FOR YOUR IMPLEMENTATION.  XILINX EXPRESSLY DISCLAIMS ANY*       WARRANTY WHATSOEVER WITH RESPECT TO THE ADEQUACY OF THE*       IMPLEMENTATION, INCLUDING BUT NOT LIMITED TO ANY WARRANTIES OR*       REPRESENTATIONS THAT THIS IMPLEMENTATION IS FREE FROM CLAIMS OF*       INFRINGEMENT, IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS*       FOR A PARTICULAR PURPOSE.**       (c) Copyright 2002 Xilinx Inc.*       All rights reserved.*******************************************************************************//*****************************************************************************//**** @file xenv.h** Defines common services that are typically found in a host operating.* environment. This include file simply includes an OS specific file based* on the compile-time constant BUILD_ENV_*, where * is the name of the target* environment.** All services are defined as macros.** <pre>* MODIFICATION HISTORY:** Ver   Who  Date     Changes* ----- ---- -------- -----------------------------------------------* 1.00b ch   10/24/02 Added XENV_LINUX* 1.00a rmm  04/17/02 First release* </pre>*******************************************************************************/#ifndef XENV_H /* prevent circular inclusions */#define XENV_H /* by using protection macros */#ifdef __cplusplusextern "C" {#endif/* * Select which target environment we are operating under *//* VxWorks target environment */#if defined XENV_VXWORKS#include "xenv_vxworks.h"/* Linux target environment */#elif defined XENV_LINUX#include "xenv_linux.h"/* Unit test environment */#elif defined XENV_UNITTEST#include "ut_xenv.h"/* Integration test environment */#elif defined XENV_INTTEST#include "int_xenv.h"/* No environment selected */#else#include "xenv_none.h"#endif/* * The following comments specify the types and macro wrappers that are * expected to be defined by the target specific header files *//**************************** Type Definitions *******************************//*****************************************************************************//** * * XENV_TIME_STAMP * * A structure that contains a time stamp used by other time stamp macros * defined below. This structure is processor dependent. *//***************** Macros (Inline Functions) Definitions *********************//*****************************************************************************//** * * XENV_MEM_COPY(void *DestPtr, void *SrcPtr, unsigned Bytes) * * Copies a non-overlapping block of memory. * * @param   DestPtr is the destination address to copy data to. * @param   SrcPtr is the source address to copy data from. * @param   Bytes is the number of bytes to copy. * * @return  None *//*****************************************************************************//** * * XENV_MEM_FILL(void *DestPtr, char Data, unsigned Bytes) * * Fills an area of memory with constant data. * * @param   DestPtr is the destination address to set. * @param   Data contains the value to set. * @param   Bytes is the number of bytes to set. * * @return  None *//*****************************************************************************//** * * XENV_TIME_STAMP_GET(XTIME_STAMP *StampPtr) * * Samples the processor's or external timer's time base counter. * * @param   StampPtr is the storage for the retrieved time stamp. * * @return  None *//*****************************************************************************//** * * XENV_TIME_STAMP_DELTA_US(XTIME_STAMP *Stamp1Ptr, XTIME_STAMP* Stamp2Ptr) * * Computes the delta between the two time stamps. * * @param   Stamp1Ptr - First sampled time stamp. * @param   Stamp1Ptr - Sedond sampled time stamp. * * @return  An unsigned int value with units of microseconds. *//*****************************************************************************//** * * XENV_TIME_STAMP_DELTA_MS(XTIME_STAMP *Stamp1Ptr, XTIME_STAMP* Stamp2Ptr) * * Computes the delta between the two time stamps. * * @param   Stamp1Ptr - First sampled time stamp. * @param   Stamp1Ptr - Sedond sampled time stamp. * * @return  An unsigned int value with units of milliseconds. *//*****************************************************************************//** * * XENV_USLEEP(unsigned delay) * * Delay the specified number of microseconds. * * @param   delay is the number of microseconds to delay. * * @return  None */#ifdef __cplusplus}#endif#endif            /* end of protection macro */