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stepcompress: Add some comments on internal structs
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Signed-off-by: Kevin O'Connor <kevin@koconnor.net>
This commit is contained in:
Kevin O'Connor 2026-02-07 14:49:00 -05:00
parent 0a43774432
commit 6d7d3403e4
1 changed files with 5 additions and 0 deletions
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5
klippy/chelper/stepcompress.c
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@ -28,10 +28,13 @@
#define CHECK_LINES 1
#define QUEUE_START_SIZE 1024
// Storage for queuing steps (only lower 32 bits of step clock are stored as
// optimization to reduce memory, improve cache usage, and reduce 64 bit ops)
struct qstep {
uint32_t clock32;
};
// Main stepcompress object storage
struct stepcompress {
// Buffer management
struct qstep *queue, *queue_end, *queue_pos, *queue_next;
@ -52,12 +55,14 @@ struct stepcompress {
struct list_head history_list;
};
// Parameters of a single queue_step command
struct step_move {
uint32_t interval;
uint16_t count;
int16_t add;
};
// Storage for internal history of recently sent queue_step commands
struct history_steps {
struct list_node node;
uint64_t first_clock, last_clock;