forked from Archive/PX4-Autopilot
77 lines
2.5 KiB
C
77 lines
2.5 KiB
C
/****************************************************************************
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*
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* Copyright (C) 2012 PX4 Development Team. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* 3. Neither the name PX4 nor the names of its contributors may be
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* used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
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* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
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* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
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* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
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* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
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* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
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* ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*
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****************************************************************************/
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/**
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* @file tests_file.c
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*
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* File write test.
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*/
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#include <stdio.h>
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#include <unistd.h>
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#include <fcntl.h>
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#include <systemlib/err.h>
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#include <systemlib/perf_counter.h>
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#include <string.h>
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#include <drivers/drv_hrt.h>
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#include "tests.h"
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int
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test_file(int argc, char *argv[])
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{
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uint8_t buf[512];
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hrt_abstime start, end;
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perf_counter_t wperf = perf_alloc(PC_ELAPSED, "SD writes");
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int fd = open("/fs/microsd/testfile", O_TRUNC | O_WRONLY | O_CREAT);
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memset(buf, 0, sizeof(buf));
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start = hrt_absolute_time();
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for (unsigned i = 0; i < 1024; i++) {
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perf_begin(wperf);
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write(fd, buf, sizeof(buf));
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perf_end(wperf);
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}
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end = hrt_absolute_time();
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close(fd);
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warnx("512KiB in %llu microseconds", end - start);
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perf_print_counter(wperf);
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perf_free(wperf);
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return 0;
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}
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