[2bd04b2] | 1 | /*
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| 2 | * Copyright (c) 2017 Petr Manek
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| 3 | * All rights reserved.
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| 4 | *
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| 5 | * Redistribution and use in source and binary forms, with or without
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| 6 | * modification, are permitted provided that the following conditions
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| 7 | * are met:
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| 8 | *
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| 9 | * - Redistributions of source code must retain the above copyright
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| 10 | * notice, this list of conditions and the following disclaimer.
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| 11 | * - Redistributions in binary form must reproduce the above copyright
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| 12 | * notice, this list of conditions and the following disclaimer in the
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| 13 | * documentation and/or other materials provided with the distribution.
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| 14 | * - The name of the author may not be used to endorse or promote products
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| 15 | * derived from this software without specific prior written permission.
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| 16 | *
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| 17 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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| 18 | * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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| 19 | * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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| 20 | * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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| 21 | * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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| 22 | * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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| 23 | * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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| 24 | * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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| 25 | * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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| 26 | * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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| 27 | */
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| 28 |
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| 29 | /** @addtogroup tmon
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| 30 | * @{
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| 31 | */
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| 32 | /**
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| 33 | * @file
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[dd36558] | 34 | * Testing framework.
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[2bd04b2] | 35 | */
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| 36 |
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| 37 | #include <stdio.h>
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[3b5a5e3] | 38 | #include <macros.h>
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[2bd04b2] | 39 | #include <devman.h>
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| 40 | #include <str_error.h>
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[41ebc36] | 41 | #include <usbdiag_iface.h>
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[ad2a8b1] | 42 | #include "resolve.h"
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[2986763] | 43 | #include "tf.h"
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[2bd04b2] | 44 |
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| 45 | #define NAME "tmon"
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[e9d600c2] | 46 | #define MAX_PATH_LENGTH 1024
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| 47 |
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[8e16454] | 48 | /** Common command handler for all test commands.
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| 49 | * @param[in] argc Number of arguments.
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| 50 | * @param[in] argv Argument values. Must point to exactly `argc` strings.
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| 51 | *
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| 52 | * @return Exit code
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| 53 | */
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| 54 | int tmon_test_main(int argc, char *argv[], const tmon_test_ops_t *ops)
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| 55 | {
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| 56 | // Resolve device function.
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[2bd04b2] | 57 | devman_handle_t fun = -1;
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| 58 |
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[119a794] | 59 | if (argc >= 2 && *argv[1] != '-') {
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| 60 | // Assume that the first argument is device path.
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| 61 | if (tmon_resolve_named(argv[1], &fun))
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[2bd04b2] | 62 | return 1;
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| 63 | } else {
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[119a794] | 64 | // The first argument is either an option or not present.
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| 65 | if (tmon_resolve_default(&fun))
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| 66 | return 1;
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[2bd04b2] | 67 | }
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| 68 |
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[98b1d30] | 69 | errno_t rc;
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| 70 | int ec;
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[e9d600c2] | 71 | char path[MAX_PATH_LENGTH];
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| 72 | if ((rc = devman_fun_get_path(fun, path, sizeof(path)))) {
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[80f7c54] | 73 | printf(NAME ": Error resolving path of device with handle "
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| 74 | "%" PRIun ". %s\n", fun, str_error(rc));
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[e9d600c2] | 75 | return 1;
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| 76 | }
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| 77 |
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[3b5a5e3] | 78 | printf("Device: %s\n", path);
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[e9d600c2] | 79 |
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[8e16454] | 80 | // Read test parameters from options.
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[3b5a5e3] | 81 | void *params = NULL;
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[dd36558] | 82 | if ((rc = ops->read_params(argc, argv, ¶ms))) {
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[5302493] | 83 | printf(NAME ": Reading test parameters failed. %s\n", str_error(rc));
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[dd36558] | 84 | return 1;
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| 85 | }
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[e9d600c2] | 86 |
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[3b5a5e3] | 87 | if ((rc = ops->pre_run(params))) {
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| 88 | printf(NAME ": Pre-run hook failed. %s\n", str_error(rc));
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| 89 | return 1;
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| 90 | }
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| 91 |
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[8e16454] | 92 | // Run the test body.
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[e9d600c2] | 93 | async_sess_t *sess = usbdiag_connect(fun);
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[d37dd3b9] | 94 | if (!sess) {
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| 95 | printf(NAME ": Could not connect to the device.\n");
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| 96 | return 1;
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| 97 | }
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[e9d600c2] | 98 |
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[d37dd3b9] | 99 | async_exch_t *exch = async_exchange_begin(sess);
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| 100 | if (!exch) {
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| 101 | printf(NAME ": Could not start exchange with the device.\n");
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[e9d600c2] | 102 | ec = 1;
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[d37dd3b9] | 103 | goto err_sess;
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[e9d600c2] | 104 | }
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| 105 |
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[dd36558] | 106 | ec = ops->run(exch, params);
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[e9d600c2] | 107 | async_exchange_end(exch);
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[d37dd3b9] | 108 |
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| 109 | err_sess:
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[e9d600c2] | 110 | usbdiag_disconnect(sess);
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[dd36558] | 111 | free(params);
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[e9d600c2] | 112 | return ec;
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[2bd04b2] | 113 | }
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| 114 |
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[3b5a5e3] | 115 | /** Unit of quantity used for pretty formatting. */
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| 116 | typedef struct tmon_unit {
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| 117 | /** Prefix letter, which is printed before the actual unit. */
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| 118 | const char *unit;
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| 119 | /** Factor of the unit. */
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| 120 | double factor;
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| 121 | } tmon_unit_t;
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| 122 |
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| 123 | /** Format a value for human reading.
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| 124 | * @param[in] val The value to format.
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| 125 | * @param[in] fmt Format string. Must include one double and char.
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| 126 | *
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| 127 | * @return Heap-allocated string if successful (caller becomes its owner), NULL otherwise.
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| 128 | */
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| 129 | static char *format_unit(double val, const char *fmt, const tmon_unit_t *units, size_t len)
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| 130 | {
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| 131 | // Figure out the "tightest" unit.
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| 132 | unsigned i;
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| 133 | for (i = 0; i < len; ++i) {
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| 134 | if (units[i].factor <= val)
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| 135 | break;
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| 136 | }
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| 137 |
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[1433ecda] | 138 | if (i == len)
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| 139 | --i;
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[3b5a5e3] | 140 | const char *unit = units[i].unit;
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| 141 | double factor = units[i].factor;
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| 142 |
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| 143 | // Format the size.
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| 144 | const double div_size = val / factor;
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| 145 |
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| 146 | char *out = NULL;
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| 147 | asprintf(&out, fmt, div_size, unit);
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| 148 |
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| 149 | return out;
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| 150 | }
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| 151 |
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| 152 | /** Static array of size units with decreasing factors. */
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| 153 | static const tmon_unit_t size_units[] = {
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| 154 | { .unit = "EB", .factor = 1ULL << 60 },
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| 155 | { .unit = "PB", .factor = 1ULL << 50 },
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| 156 | { .unit = "TB", .factor = 1ULL << 40 },
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| 157 | { .unit = "GB", .factor = 1ULL << 30 },
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| 158 | { .unit = "MB", .factor = 1ULL << 20 },
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| 159 | { .unit = "kB", .factor = 1ULL << 10 },
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| 160 | { .unit = "B", .factor = 1ULL },
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| 161 | };
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| 162 |
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| 163 | char *tmon_format_size(double val, const char *fmt)
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| 164 | {
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| 165 | return format_unit(val, fmt, size_units, ARRAY_SIZE(size_units));
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| 166 | }
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| 167 |
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| 168 | /** Static array of duration units with decreasing factors. */
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| 169 | static const tmon_unit_t dur_units[] = {
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| 170 | { .unit = "d", .factor = 60 * 60 * 24 },
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| 171 | { .unit = "h", .factor = 60 * 60 },
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| 172 | { .unit = "min", .factor = 60 },
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| 173 | { .unit = "s", .factor = 1 },
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| 174 | { .unit = "ms", .factor = 1e-3 },
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| 175 | { .unit = "us", .factor = 1e-6 },
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| 176 | { .unit = "ns", .factor = 1e-9 },
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| 177 | { .unit = "ps", .factor = 1e-12 },
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| 178 | };
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| 179 |
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| 180 | char *tmon_format_duration(usbdiag_dur_t val, const char *fmt)
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| 181 | {
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| 182 | return format_unit(val / 1000.0, fmt, dur_units, ARRAY_SIZE(dur_units));
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| 183 | }
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| 184 |
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[2bd04b2] | 185 | /** @}
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| 186 | */
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