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Discard all CONTINUED blocks on interrupted move

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This commit is contained in:
Scott Lahteine 2017-12-07 22:38:40 -06:00
parent 8be7a0b131
commit 75eb93140f
3 changed files with 34 additions and 14 deletions
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24
Marlin/planner.h
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@ -53,14 +53,18 @@ enum BlockFlagBit {
BLOCK_BIT_START_FROM_FULL_HALT,
// The block is busy
BLOCK_BIT_BUSY
BLOCK_BIT_BUSY,
// The block is segment 2+ of a longer move
BLOCK_BIT_CONTINUED
};
enum BlockFlag {
BLOCK_FLAG_RECALCULATE = _BV(BLOCK_BIT_RECALCULATE),
BLOCK_FLAG_NOMINAL_LENGTH = _BV(BLOCK_BIT_NOMINAL_LENGTH),
BLOCK_FLAG_START_FROM_FULL_HALT = _BV(BLOCK_BIT_START_FROM_FULL_HALT),
BLOCK_FLAG_BUSY = _BV(BLOCK_BIT_BUSY)
BLOCK_FLAG_BUSY = _BV(BLOCK_BIT_BUSY),
BLOCK_FLAG_CONTINUED = _BV(BLOCK_BIT_CONTINUED)
};
/**
@ -450,14 +454,24 @@ class Planner {
static bool blocks_queued() { return (block_buffer_head != block_buffer_tail); }
/**
* "Discards" the block and "releases" the memory.
* "Discard" the block and "release" the memory.
* Called when the current block is no longer needed.
*/
static void discard_current_block() {
FORCE_INLINE static void discard_current_block() {
if (blocks_queued())
block_buffer_tail = BLOCK_MOD(block_buffer_tail + 1);
}
/**
* "Discard" the next block if it's continued.
* Called after an interrupted move to throw away the rest of the move.
*/
FORCE_INLINE static bool discard_continued_block() {
const bool discard = blocks_queued() && TEST(block_buffer[block_buffer_tail].flag, BLOCK_BIT_CONTINUED);
if (discard) discard_current_block();
return discard;
}
/**
* The current block. NULL if the buffer is empty.
* This also marks the block as busy.
@ -465,7 +479,7 @@ class Planner {
*/
static block_t* get_current_block() {
if (blocks_queued()) {
block_t* block = &block_buffer[block_buffer_tail];
block_t * const block = &block_buffer[block_buffer_tail];
#if ENABLED(ULTRA_LCD)
block_buffer_runtime_us -= block->segment_time_us; // We can't be sure how long an active block will take, so don't count it.
#endif