mirror of https://github.com/merbanan/rtl_433.git
59 lines
1.4 KiB
C
59 lines
1.4 KiB
C
/** @file
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Trigger output for rtl_433 events.
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Copyright (C) 2021 Christian Zuckschwerdt
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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*/
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#include "output_trigger.h"
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#include "data.h"
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#include "r_util.h"
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#include "fatal.h"
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#include <stdio.h>
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#include <stdlib.h>
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/* Trigger printer */
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typedef struct {
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struct data_output output;
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FILE *file;
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} data_output_trigger_t;
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static void R_API_CALLCONV data_output_trigger_print(data_output_t *output, data_t *data)
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{
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UNUSED(data);
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data_output_trigger_t *trigger = (data_output_trigger_t *)output;
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fputc('1', trigger->file);
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fflush(trigger->file);
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}
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static void R_API_CALLCONV data_output_trigger_free(data_output_t *output)
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{
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if (!output)
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return;
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free(output);
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}
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struct data_output *data_output_trigger_create(FILE *file)
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{
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data_output_trigger_t *trigger = calloc(1, sizeof(data_output_trigger_t));
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if (!trigger) {
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WARN_CALLOC("data_output_trigger_create()");
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return NULL; // NOTE: returns NULL on alloc failure.
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}
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trigger->output.output_print = data_output_trigger_print;
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trigger->output.output_free = data_output_trigger_free;
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trigger->file = file;
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return (struct data_output *)trigger;
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}
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