61 lines
1.6 KiB
C
61 lines
1.6 KiB
C
#include <stdlib.h>
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#include <string.h>
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#include <erl_nif.h>
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#define MAX_GENERATED 3
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static ERL_NIF_TERM do_build_calendar(ErlNifEnv* env, int argc, const ERL_NIF_TERM argv[])
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{
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// Arguments
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long int nowSeconds, startTimeSeconds, endTimeSeconds, frequencySeconds;
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int repeat;
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// Fetch arguments.
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enif_get_long(env, argv[0], &nowSeconds);
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enif_get_long(env, argv[1], &startTimeSeconds);
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enif_get_long(env, argv[2], &endTimeSeconds);
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enif_get_int(env, argv[3], &repeat);
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enif_get_long(env, argv[4], &frequencySeconds);
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// Data used to build the calendar.
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long int gracePeriodSeconds;
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gracePeriodSeconds = nowSeconds - 60;
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long int step = frequencySeconds * repeat;
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// iterators for loops
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long int i, j;
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// build our events array, fill it with zeroes.
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long int events[MAX_GENERATED];
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for(i = 0; i < MAX_GENERATED; i++)
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events[i] = 0;
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// put up to MAX_GENERATED events into the array
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for(j = 0, i = startTimeSeconds; (i < endTimeSeconds) && (j < MAX_GENERATED); i += step) {
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// if this event (i) is after the grace period, add it to the array.
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if(i > gracePeriodSeconds) {
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events[j] = i;
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j++;
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}
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}
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// Count up our total generated events
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for(i=0, j=0; j<MAX_GENERATED; j++) { if(events[j] > 0) { i++; } }
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// Build the array to be returned.
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ERL_NIF_TERM retArr [i];
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for(j=0; j<i ; j++)
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retArr[j] = enif_make_long(env, events[j]);
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// we survived.
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return enif_make_list_from_array(env, retArr, i);
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}
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static ErlNifFunc nif_funcs[] =
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{
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{"do_build_calendar", 5, do_build_calendar}
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};
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ERL_NIF_INIT(Elixir.Farmbot.Asset.FarmEvent, nif_funcs, NULL,NULL,NULL,NULL)
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