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Edit File: win_minmax.h

/* SPDX-License-Identifier: GPL-2.0 */ /** * lib/minmax.c: windowed min/max tracker by Kathleen Nichols. * */ #ifndef MINMAX_H #define MINMAX_H #include <linux/types.h> /* A single data point for our parameterized min-max tracker */ struct minmax_sample { u32 t; /* time measurement was taken */ u32 v; /* value measured */ }; /* State for the parameterized min-max tracker */ struct minmax { struct minmax_sample s[3]; }; static inline u32 minmax_get(const struct minmax *m) { return m->s[0].v; } static inline u32 minmax_reset(struct minmax *m, u32 t, u32 meas) { struct minmax_sample val = { .t = t, .v = meas }; m->s[2] = m->s[1] = m->s[0] = val; return m->s[0].v; } u32 minmax_running_max(struct minmax *m, u32 win, u32 t, u32 meas); u32 minmax_running_min(struct minmax *m, u32 win, u32 t, u32 meas); #endif