122 lines
3.1 KiB
C
122 lines
3.1 KiB
C
/* prim_test.c
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* vi:ts=4 sw=4
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*
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* (c) Copyright 2012 Hewlett-Packard Development Company, L.P.
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* Licensed under the Apache License, Version 2.0 (the "License"); you may
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* not use this file except in compliance with the License. You may obtain
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* a copy of the License at http://www.apache.org/licenses/LICENSE-2.0.
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
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* or implied. See the License for the specific language governing
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* permissions and limitations under the License.
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include "prim_test.h"
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#include <fcntl.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <winpr/sysinfo.h>
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#include <winpr/platform.h>
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#ifdef HAVE_UNISTD_H
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#include <unistd.h>
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#endif
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BOOL g_TestPrimitivesPerformance = FALSE;
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int test_sizes[] = { 8, 16, 32, 64, 128, 256, 512, 1024, 2048, 4096 };
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/* ------------------------------------------------------------------------- */
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static void get_random_data_lrand(void *buffer, size_t size)
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{
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static int seeded = 0;
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long int *ptr = (long int *) buffer;
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unsigned char *cptr;
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if (!seeded)
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{
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seeded = 1;
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srand48(time(NULL));
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}
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/* This isn't the perfect random number generator, but that's okay. */
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while (size >= sizeof(long int))
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{
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*ptr++ = lrand48();
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size -= sizeof(long int);
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}
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cptr = (unsigned char *) ptr;
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while (size > 0)
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{
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*cptr++ = lrand48() & 0xff;
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--size;
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}
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}
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/* ------------------------------------------------------------------------- */
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void get_random_data(void *buffer, size_t size)
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{
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#ifdef __linux__
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size_t offset = 0;
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int fd = open("/dev/urandom", O_RDONLY);
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if (fd < 0)
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{
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get_random_data_lrand(buffer, size);
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return;
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}
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while (size > 0)
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{
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ssize_t count = read(fd, buffer+offset, size);
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size -= count;
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offset += count;
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}
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close(fd);
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#else
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get_random_data_lrand(buffer, size);
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#endif
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}
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/* ------------------------------------------------------------------------- */
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float _delta_time(const struct timespec *t0, const struct timespec *t1)
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{
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INT64 secs = (INT64) (t1->tv_sec) - (INT64) (t0->tv_sec);
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long nsecs = t1->tv_nsec - t0->tv_nsec;
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double retval;
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if (nsecs < 0)
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{
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--secs;
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nsecs += 1000000000;
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}
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retval = (double) secs + (double) nsecs / (double) 1000000000.0;
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return (retval < 0.0) ? 0.0 : (float) retval;
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}
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/* ------------------------------------------------------------------------- */
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void _floatprint(float t, char *output)
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{
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/* I don't want to link against -lm, so avoid log,exp,... */
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float f = 10.0;
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int i;
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while (t > f) f *= 10.0;
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f /= 1000.0;
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i = ((int) (t/f+0.5)) * (int) f;
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if (t < 0.0) sprintf(output, "%f", t);
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else if (i == 0) sprintf(output, "%d", (int) (t+0.5));
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else if (t < 1e+3) sprintf(output, "%3d", i);
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else if (t < 1e+6) sprintf(output, "%3d,%03d",
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i/1000, i % 1000);
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else if (t < 1e+9) sprintf(output, "%3d,%03d,000",
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i/1000000, (i % 1000000) / 1000);
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else if (t < 1e+12) sprintf(output, "%3d,%03d,000,000",
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i/1000000000, (i % 1000000000) / 1000000);
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else sprintf(output, "%f", t);
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}
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