diff options
author | Lorenz Meier <lm@inf.ethz.ch> | 2013-11-30 10:00:33 +0100 |
---|---|---|
committer | Lorenz Meier <lm@inf.ethz.ch> | 2013-11-30 10:00:33 +0100 |
commit | 3701a02a37ddd9e78fa2ddcb7b9e9ec0d136ae79 (patch) | |
tree | 65e8f317e16ee6091031a40a537b1f44bde4e6ba /src/systemcmds/tests/test_file.c | |
parent | 39634d100104b64f205b69017562b3ac549cf264 (diff) | |
download | px4-firmware-3701a02a37ddd9e78fa2ddcb7b9e9ec0d136ae79.tar.gz px4-firmware-3701a02a37ddd9e78fa2ddcb7b9e9ec0d136ae79.tar.bz2 px4-firmware-3701a02a37ddd9e78fa2ddcb7b9e9ec0d136ae79.zip |
Tests for all PWM pins
Diffstat (limited to 'src/systemcmds/tests/test_file.c')
-rw-r--r-- | src/systemcmds/tests/test_file.c | 335 |
1 files changed, 335 insertions, 0 deletions
diff --git a/src/systemcmds/tests/test_file.c b/src/systemcmds/tests/test_file.c new file mode 100644 index 000000000..798724cf1 --- /dev/null +++ b/src/systemcmds/tests/test_file.c @@ -0,0 +1,335 @@ +/**************************************************************************** + * + * Copyright (C) 2012 PX4 Development Team. All rights reserved. + * + * Redistribution and use in source and binary forms, with or without + * modification, are permitted provided that the following conditions + * are met: + * + * 1. Redistributions of source code must retain the above copyright + * notice, this list of conditions and the following disclaimer. + * 2. Redistributions in binary form must reproduce the above copyright + * notice, this list of conditions and the following disclaimer in + * the documentation and/or other materials provided with the + * distribution. + * 3. Neither the name PX4 nor the names of its contributors may be + * used to endorse or promote products derived from this software + * without specific prior written permission. + * + * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS + * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT + * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS + * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE + * COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, + * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, + * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS + * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED + * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT + * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN + * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE + * POSSIBILITY OF SUCH DAMAGE. + * + ****************************************************************************/ + +/** + * @file test_file.c + * + * File write test. + */ + +#include <sys/stat.h> +#include <dirent.h> +#include <stdio.h> +#include <stddef.h> +#include <unistd.h> +#include <fcntl.h> +#include <systemlib/err.h> +#include <systemlib/perf_counter.h> +#include <string.h> + +#include <drivers/drv_hrt.h> + +#include "tests.h" + +int +test_file(int argc, char *argv[]) +{ + const unsigned iterations = 100; + const unsigned alignments = 65; + + /* check if microSD card is mounted */ + struct stat buffer; + if (stat("/fs/microsd/", &buffer)) { + warnx("no microSD card mounted, aborting file test"); + return 1; + } + + /* perform tests for a range of chunk sizes */ + unsigned chunk_sizes[] = {1, 5, 8, 13, 16, 32, 33, 64, 70, 128, 133, 256, 300, 512, 555, 1024, 1500}; + + for (unsigned c = 0; c < (sizeof(chunk_sizes) / sizeof(chunk_sizes[0])); c++) { + + printf("\n====== FILE TEST: %u bytes chunks ======\n", chunk_sizes[c]); + + for (unsigned a = 0; a < alignments; a++) { + + printf("\n"); + warnx("----- alignment test: %u bytes -----", a); + + uint8_t write_buf[chunk_sizes[c] + alignments] __attribute__((aligned(64))); + + /* fill write buffer with known values */ + for (int i = 0; i < sizeof(write_buf); i++) { + /* this will wrap, but we just need a known value with spacing */ + write_buf[i] = i+11; + } + + uint8_t read_buf[chunk_sizes[c] + alignments] __attribute__((aligned(64))); + hrt_abstime start, end; + //perf_counter_t wperf = perf_alloc(PC_ELAPSED, "SD writes (aligned)"); + + int fd = open("/fs/microsd/testfile", O_TRUNC | O_WRONLY | O_CREAT); + + warnx("testing unaligned writes - please wait.."); + + start = hrt_absolute_time(); + for (unsigned i = 0; i < iterations; i++) { + //perf_begin(wperf); + int wret = write(fd, write_buf + a, chunk_sizes[c]); + + if (wret != chunk_sizes[c]) { + warn("WRITE ERROR!"); + + if ((0x3 & (uintptr_t)(write_buf + a))) + errx(1, "memory is unaligned, align shift: %d", a); + + } + + fsync(fd); + //perf_end(wperf); + + } + end = hrt_absolute_time(); + + //warnx("%dKiB in %llu microseconds", iterations / 2, end - start); + + //perf_print_counter(wperf); + //perf_free(wperf); + + close(fd); + fd = open("/fs/microsd/testfile", O_RDONLY); + + /* read back data for validation */ + for (unsigned i = 0; i < iterations; i++) { + int rret = read(fd, read_buf, chunk_sizes[c]); + + if (rret != chunk_sizes[c]) { + errx(1, "READ ERROR!"); + } + + /* compare value */ + bool compare_ok = true; + + for (int j = 0; j < chunk_sizes[c]; j++) { + if (read_buf[j] != write_buf[j + a]) { + warnx("COMPARISON ERROR: byte %d, align shift: %d", j, a); + compare_ok = false; + break; + } + } + + if (!compare_ok) { + errx(1, "ABORTING FURTHER COMPARISON DUE TO ERROR"); + } + + } + + /* + * ALIGNED WRITES AND UNALIGNED READS + */ + + close(fd); + int ret = unlink("/fs/microsd/testfile"); + fd = open("/fs/microsd/testfile", O_TRUNC | O_WRONLY | O_CREAT); + + warnx("testing aligned writes - please wait.."); + + start = hrt_absolute_time(); + for (unsigned i = 0; i < iterations; i++) { + int wret = write(fd, write_buf, chunk_sizes[c]); + + if (wret != chunk_sizes[c]) { + err(1, "WRITE ERROR!"); + } + + } + + fsync(fd); + + warnx("reading data aligned.."); + + close(fd); + fd = open("/fs/microsd/testfile", O_RDONLY); + + bool align_read_ok = true; + + /* read back data unaligned */ + for (unsigned i = 0; i < iterations; i++) { + int rret = read(fd, read_buf, chunk_sizes[c]); + + if (rret != chunk_sizes[c]) { + err(1, "READ ERROR!"); + } + + /* compare value */ + bool compare_ok = true; + + for (int j = 0; j < chunk_sizes[c]; j++) { + if (read_buf[j] != write_buf[j]) { + warnx("COMPARISON ERROR: byte %d: %u != %u", j, (unsigned int)read_buf[j], (unsigned int)write_buf[j]); + align_read_ok = false; + break; + } + } + + if (!align_read_ok) { + errx(1, "ABORTING FURTHER COMPARISON DUE TO ERROR"); + } + + } + + warnx("align read result: %s\n", (align_read_ok) ? "OK" : "ERROR"); + + warnx("reading data unaligned.."); + + close(fd); + fd = open("/fs/microsd/testfile", O_RDONLY); + + bool unalign_read_ok = true; + int unalign_read_err_count = 0; + + memset(read_buf, 0, sizeof(read_buf)); + + /* read back data unaligned */ + for (unsigned i = 0; i < iterations; i++) { + int rret = read(fd, read_buf + a, chunk_sizes[c]); + + if (rret != chunk_sizes[c]) { + err(1, "READ ERROR!"); + } + + for (int j = 0; j < chunk_sizes[c]; j++) { + + if ((read_buf + a)[j] != write_buf[j]) { + warnx("COMPARISON ERROR: byte %d, align shift: %d: %u != %u", j, a, (unsigned int)read_buf[j + a], (unsigned int)write_buf[j]); + unalign_read_ok = false; + unalign_read_err_count++; + + if (unalign_read_err_count > 10) + break; + } + } + + if (!unalign_read_ok) { + errx(1, "ABORTING FURTHER COMPARISON DUE TO ERROR"); + } + + } + + ret = unlink("/fs/microsd/testfile"); + close(fd); + + if (ret) + err(1, "UNLINKING FILE FAILED"); + + } + } + + /* list directory */ + DIR *d; + struct dirent *dir; + d = opendir("/fs/microsd"); + if (d) { + + while ((dir = readdir(d)) != NULL) { + //printf("%s\n", dir->d_name); + } + + closedir(d); + + warnx("directory listing ok (FS mounted and readable)"); + + } else { + /* failed opening dir */ + err(1, "FAILED LISTING MICROSD ROOT DIRECTORY"); + } + + return 0; +} +#if 0 +int +test_file(int argc, char *argv[]) +{ + const iterations = 1024; + + /* check if microSD card is mounted */ + struct stat buffer; + if (stat("/fs/microsd/", &buffer)) { + warnx("no microSD card mounted, aborting file test"); + return 1; + } + + uint8_t buf[512]; + hrt_abstime start, end; + perf_counter_t wperf = perf_alloc(PC_ELAPSED, "SD writes"); + + int fd = open("/fs/microsd/testfile", O_TRUNC | O_WRONLY | O_CREAT); + memset(buf, 0, sizeof(buf)); + + start = hrt_absolute_time(); + for (unsigned i = 0; i < iterations; i++) { + perf_begin(wperf); + write(fd, buf, sizeof(buf)); + perf_end(wperf); + } + end = hrt_absolute_time(); + + close(fd); + + unlink("/fs/microsd/testfile"); + + warnx("%dKiB in %llu microseconds", iterations / 2, end - start); + perf_print_counter(wperf); + perf_free(wperf); + + warnx("running unlink test"); + + /* ensure that common commands do not run against file count limits */ + for (unsigned i = 0; i < 64; i++) { + + warnx("unlink iteration #%u", i); + + int fd = open("/fs/microsd/testfile", O_TRUNC | O_WRONLY | O_CREAT); + if (fd < 0) + errx(1, "failed opening test file before unlink()"); + int ret = write(fd, buf, sizeof(buf)); + if (ret < 0) + errx(1, "failed writing test file before unlink()"); + close(fd); + + ret = unlink("/fs/microsd/testfile"); + if (ret != OK) + errx(1, "failed unlinking test file"); + + fd = open("/fs/microsd/testfile", O_TRUNC | O_WRONLY | O_CREAT); + if (fd < 0) + errx(1, "failed opening test file after unlink()"); + ret = write(fd, buf, sizeof(buf)); + if (ret < 0) + errx(1, "failed writing test file after unlink()"); + close(fd); + } + + return 0; +} +#endif |