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Add configUSE_MINI_LIST_ITEM configuration option to enable the MiniListItem_t type. (#433)

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* Add configUSE_MINI_LIST_ITEM configuration option to enable the MiniListItem_t type.

When configUSE_MINI_LIST_ITEM == 0:
	MiniListItem_t and ListItem_t are both typedefs of struct xLIST_ITEM.

When configUSE_MINI_LIST_ITEM == 1 (the default in projdefs.h):
	MiniListItem_t is a typedef of struct xMINI_LIST_ITEM, which contains 3 fewer fields than a struct xLIST_ITEM.
	This configuration saves approximately sizeof(TickType_t) + 2 * sizeof( void * ) bytes of ram, however it also violates strict aliasing rules which some compilers depend on for optimization.

configUSE_MINI_LIST_ITEM defaults to 1 when not defined.

* Add pp_indent_brace option to uncrustify config

Improves compliance with the FreeRTOS code style guide:
https://www.freertos.org/FreeRTOS-Coding-Standard-and-Style-Guide.html
This commit is contained in:
Paul Bartell 2022-01-19 13:12:57 -08:00 • committed by GitHub
parent 043c2c7ef6
commit dca4f80a6b
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10 changed files with 1173 additions and 1143 deletions
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11
list.c
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@ -54,6 +54,8 @@ void vListInitialise( List_t * const pxList )
* as the only list entry. */
pxList->pxIndex = ( ListItem_t * ) &( pxList->xListEnd ); /*lint !e826 !e740 !e9087 The mini list structure is used as the list end to save RAM. This is checked and valid. */
listSET_FIRST_LIST_ITEM_INTEGRITY_CHECK_VALUE( &( pxList->xListEnd ) );
/* The list end value is the highest possible value in the list to
* ensure it remains at the end of the list. */
pxList->xListEnd.xItemValue = portMAX_DELAY;
@ -63,6 +65,15 @@ void vListInitialise( List_t * const pxList )
pxList->xListEnd.pxNext = ( ListItem_t * ) &( pxList->xListEnd ); /*lint !e826 !e740 !e9087 The mini list structure is used as the list end to save RAM. This is checked and valid. */
pxList->xListEnd.pxPrevious = ( ListItem_t * ) &( pxList->xListEnd ); /*lint !e826 !e740 !e9087 The mini list structure is used as the list end to save RAM. This is checked and valid. */
/* Initialize the remaining fields of xListEnd when it is a proper ListItem_t */
#if ( configUSE_MINI_LIST_ITEM == 0 )
{
pxList->xListEnd.pvOwner = NULL;
pxList->xListEnd.pxContainer = NULL;
listSET_SECOND_LIST_ITEM_INTEGRITY_CHECK_VALUE( &( pxList->xListEnd ) );
}
#endif
pxList->uxNumberOfItems = ( UBaseType_t ) 0U;
/* Write known values into the list if