/*---------------------------------------------------------------------------*
* Routine: sys_arch_sem_wait
*---------------------------------------------------------------------------*
* Description:
* Blocks the thread while waiting for the semaphore to be
* signaled. If the "timeout" argument is non-zero, the thread should
* only be blocked for the specified time (measured in
* milliseconds).
*
* If the timeout argument is non-zero, the return value is the number of
* milliseconds spent waiting for the semaphore to be signaled. If the
* semaphore wasn't signaled within the specified time, the return value is
* SYS_ARCH_TIMEOUT. If the thread didn't have to wait for the semaphore
* (i.e., it was already signaled), the function may return zero.
*
* Notice that lwIP implements a function with a similar name,
* sys_sem_wait(), that uses the sys_arch_sem_wait() function.
* Inputs:
* sys_sem_t sem -- Semaphore to wait on
* u32_t timeout -- Number of milliseconds until timeout
* Outputs:
* u32_t -- Time elapsed or SYS_ARCH_TIMEOUT.
*---------------------------------------------------------------------------*/
u32_t sys_arch_sem_wait( sys_sem_t *pxSemaphore, u32_t ulTimeout ) {
BT_u32 ulStartTime, ulEndTime, ulElapsed;
BT_u32 ulReturn;
ulStartTime = BT_GetKernelTick();
if( ulTimeout != 0UL ) {
if(BT_PendMutex( *pxSemaphore, ulTimeout) == BT_TRUE ) {
ulEndTime = BT_GetKernelTick();
ulElapsed = (ulEndTime - ulStartTime);
ulReturn = ulElapsed;
}
else {
ulReturn = SYS_ARCH_TIMEOUT;
}
}
else {
BT_PendMutex( *pxSemaphore, 0 );
ulEndTime = BT_GetKernelTick();
ulElapsed = ( ulEndTime - ulStartTime );
if( ulElapsed == 0UL ) {
ulElapsed = 1UL;
}
ulReturn = ulElapsed;
}
return ulReturn;
}
BT_ERROR BT_kPrint(const char *format, ... ) {
va_list ap;
#ifndef BT_CONFIG_KERNEL_NONE
#ifdef BT_CONFIG_SYSLOG_SYSTICK
BT_TICK oTicks = BT_GetKernelTick();
bt_printf("[%5d.%03d] : ", oTicks / 1000, oTicks % 1000);
#else
BT_u64 gt = BT_GetGlobalTimer();
BT_u32 rate = BT_GetGlobalTimerRate();
bt_printf("[%5d.%06d] : ", (BT_u32) (gt / (BT_u64)rate), (BT_u32) ((1000000 * (gt % (BT_u64)rate)) / rate ));
#endif
#endif
va_start(ap, format);
bt_kvprintf(format, bt_fputc, BT_GetStdout(), 10, ap);
va_end(ap);
#ifdef BT_CONFIG_SYSLOG_LINE_ENDINGS_CR
bt_printf("\n");
#endif
#ifdef BT_CONFIG_SYSLOG_LINE_ENDINGS_LF
bt_printf("\r");
#endif
#ifdef BT_CONFIG_SYSLOG_LINE_ENDINGS_CRLF
bt_printf("\n\r");
#endif
#ifdef BT_CONFIG_SYSLOG_LINE_ENDINGS_LFCR
bt_printf("\r\n");
#endif
return BT_ERR_NONE;
}
/*---------------------------------------------------------------------------*
* Routine: sys_arch_mbox_fetch
*---------------------------------------------------------------------------*
* Description:
* Blocks the thread until a message arrives in the mailbox, but does
* not block the thread longer than "timeout" milliseconds (similar to
* the sys_arch_sem_wait() function). The "msg" argument is a result
* parameter that is set by the function (i.e., by doing "*msg =
* ptr"). The "msg" parameter maybe NULL to indicate that the message
* should be dropped.
*
* The return values are the same as for the sys_arch_sem_wait() function:
* Number of milliseconds spent waiting or SYS_ARCH_TIMEOUT if there was a
* timeout.
*
* Note that a function with a similar name, sys_mbox_fetch(), is
* implemented by lwIP.
* Inputs:
* sys_mbox_t mbox -- Handle of mailbox
* void **msg -- Pointer to pointer to msg received
* u32_t timeout -- Number of milliseconds until timeout
* Outputs:
* u32_t -- SYS_ARCH_TIMEOUT if timeout, else number
* of milliseconds until received.
*---------------------------------------------------------------------------*/
u32_t sys_arch_mbox_fetch( sys_mbox_t *pxMailBox, void **ppvBuffer, u32_t ulTimeOut ) {
void *pvDummy;
BT_TICK ulStartTime, ulEndTime, ulElapsed;
BT_u32 ulReturn;
ulStartTime = BT_GetKernelTick();
if( NULL == ppvBuffer ) {
ppvBuffer = &pvDummy;
}
if( ulTimeOut != 0UL ) {
if( BT_TRUE == BT_QueueReceive( *pxMailBox, &( *ppvBuffer ), ulTimeOut ) ) {
ulEndTime = BT_GetKernelTick();
ulElapsed = ( ulEndTime - ulStartTime );
ulReturn = ulElapsed;
}
else {
/* Timed out. */
*ppvBuffer = NULL;
ulReturn = SYS_ARCH_TIMEOUT;
}
}
else {
while( BT_TRUE != BT_QueueReceive( *pxMailBox, &( *ppvBuffer ), 0 ) );
ulEndTime = BT_GetKernelTick();
ulElapsed = ( ulEndTime - ulStartTime );
if( ulElapsed == 0UL ) {
ulElapsed = 1UL;
}
ulReturn = ulElapsed;
}
return ulReturn;
}
u32_t sys_now(void) {
return BT_GetKernelTick();
}
