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Change command interpreter semantics.

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This commit is contained in:
Richard Barry 2011-08-03 09:36:12 +00:00
parent 49f726cf25
commit ff8a7626d0
3 changed files with 39 additions and 64 deletions
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85
Demo/WIN32-MSVC-lwIP/main.c
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@ -122,11 +122,11 @@ static void prvCheckTimerCallback( xTimerHandle xTimer );
extern void lwIPAppsInit( void *pvArguments );
/* Callbacks to handle the command line commands defined by the xTaskStats and
xRunTimeStats command definitions respectively. These functions are not
reentrant! They must be used from one task only - or at least by only one task
at a time. */
static const signed char *prvTaskStatsCommand( void );
static const signed char *prvRunTimeStatsCommand( void );
xRunTimeStats command definitions respectively. These functions are not
necessarily reentrant! They must be used from one task only - or at least by
only one task at a time. */
static portBASE_TYPE prvTaskStatsCommand( signed char *pcWriteBuffer, size_t xWriteBufferLen );
static portBASE_TYPE prvRunTimeStatsCommand( signed char *pcWriteBuffer, size_t xWriteBufferLen );
/* The string that latches the current demo status. */
static char *pcStatusMessage = "All tasks running without error";
@ -316,70 +316,41 @@ unsigned long ulReturn;
}
/*-----------------------------------------------------------*/
static const signed char *prvTaskStatsCommand( void )
static portBASE_TYPE prvTaskStatsCommand( signed char *pcWriteBuffer, size_t xWriteBufferLen )
{
static signed char *pcReturn = NULL;
const char *const pcHeader = "Task State Priority Stack #\r\n************************************************\r\n";
/* This is the callback function that is executed when the command line
command defined by the xTaskStats structure is entered. This function
is called repeatedly until it returns NULL. It is therefore not re-entrant
and must not be called from more than one task - or at least - not from
more than one task at the same time. */
if( pcReturn == NULL )
{
/* Generate a table of task state. */
pcReturn = pcLwipAppsBlockingGetTxBuffer();
if( pcReturn != NULL )
{
strcpy( pcReturn, pcHeader );
vTaskList( pcReturn + strlen( pcHeader ) );
}
}
else
{
/* This command only returns one string, so the second time it is
called it just resets itself and returns NULL to say no more strings
are going to be generated. */
pcReturn = NULL;
vLwipAppsReleaseTxBuffer();
}
configASSERT( pcWriteBuffer );
return pcReturn;
/* This function assumes the buffer length is adequate. */
( void ) xWriteBufferLen;
/* Generate a table of task stats. */
strcpy( pcWriteBuffer, pcHeader );
vTaskList( pcWriteBuffer + strlen( pcHeader ) );
/* There is no more data to return after this single string, so return
pdFALSE. */
return pdFALSE;
}
/*-----------------------------------------------------------*/
static const signed char *prvRunTimeStatsCommand( void )
static portBASE_TYPE prvRunTimeStatsCommand( signed char *pcWriteBuffer, size_t xWriteBufferLen )
{
static signed char *pcReturn = NULL;
const char * const pcHeader = "Task Abs Time % Time\r\n****************************************\r\n";
/* This is the callback function that is executed when the command line
command defined by the xRunTimeStats structure is entered. This function
is called repeatedly until it returns NULL. It is therefore not re-entrant
and must not be called from more than one task - or at least - not from
more than one task at the same time. */
configASSERT( pcWriteBuffer );
if( pcReturn == NULL )
{
/* Generate a table of run time stats. */
pcReturn = pcLwipAppsBlockingGetTxBuffer();
if( pcReturn != NULL )
{
strcpy( pcReturn, pcHeader );
vTaskGetRunTimeStats( pcReturn + strlen( pcHeader ) );
}
}
else
{
/* This command only returns one string, so the second time it is
called it just resets itself and returns NULL to say no more strings
are going to be generated. */
pcReturn = NULL;
vLwipAppsReleaseTxBuffer();
}
/* This function assumes the buffer length is adequate. */
( void ) xWriteBufferLen;
return pcReturn;
/* Generate a table of task stats. */
strcpy( pcWriteBuffer, pcHeader );
vTaskGetRunTimeStats( pcWriteBuffer + strlen( pcHeader ) );
/* There is no more data to return after this single string, so return
pdFALSE. */
return pdFALSE;
}