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449910dbc7
Refactor existing code, and harmonize interface. Add a couple of tests. Signed-off-by: Robert Schmidt <robert.schmidt@openairinterface.org>
37 lines
911 B
C
37 lines
911 B
C
/*
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* SPDX-License-Identifier: LicenseRef-CSSL-1.0
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*/
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#ifndef FSN_H_
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#define FSN_H_
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#include <stdint.h>
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#include <stdbool.h>
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/// helper type to encapsulate a frame/slot combination in a single type.
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typedef struct fsn {
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uint16_t f; /// frame
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uint16_t s; /// slot
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uint8_t mu; /// numerology
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} fsn_t;
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/* \brief Add delta slots to fsn. Note that this depends also on the stored
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* numerology inside fsn. */
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fsn_t fsn_add_delta(fsn_t fsn, uint32_t delta);
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/* \brief Get difference of slots for a and b.
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* \note asserts if numerology not the same. */
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int fsn_get_diff(fsn_t a, fsn_t b);
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/* \brief Gets the larger of two fsns */
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fsn_t fsn_get_max(fsn_t a, fsn_t b);
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/* \brief Compare if both fsn_t's are equal */
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bool fsn_equal(fsn_t a, fsn_t b);
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/* \brief Determine if told is in the past of tnew. The threshold is 512
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* frames. */
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bool fsn_in_the_past(fsn_t told, fsn_t tnew);
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#endif /* FSN_H_ */
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