зеркало из https://github.com/mozilla/gecko-dev.git
131 строка
3.8 KiB
C
131 строка
3.8 KiB
C
/* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */
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/* This Source Code Form is subject to the terms of the Mozilla Public
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* License, v. 2.0. If a copy of the MPL was not distributed with this
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* file, You can obtain one at http://mozilla.org/MPL/2.0/. */
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#include "prio.h"
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#include "prmem.h"
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#include "prprf.h"
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#include "prinrval.h"
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#include "plerror.h"
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#include "plgetopt.h"
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static PRFileDesc *err = NULL;
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static void Help(void)
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{
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PR_fprintf(err, "Usage: [-S] [-K <n>] [-h] <filename>\n");
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PR_fprintf(err, "\t-c Nuber of iterations (default: 10)\n");
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PR_fprintf(err, "\t-S Sync the file (default: FALSE)\n");
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PR_fprintf(err, "\t-K Size of file (K bytes) (default: 10)\n");
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PR_fprintf(err, "\t Name of file to write (default: ./tmp-sync.dat)\n");
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PR_fprintf(err, "\t-h This message and nothing else\n");
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} /* Help */
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int main(int argc, char **argv)
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{
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PRStatus rv;
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PLOptStatus os;
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PRUint8 *buffer;
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PRFileDesc *file = NULL;
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const char *filename = "sync.dat";
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PRUint32 index, loops, iterations = 10, filesize = 10;
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PRIntn flags = PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE;
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PLOptState *opt = PL_CreateOptState(argc, argv, "hSK:c:");
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PRIntervalTime time, total = 0, shortest = 0x7fffffff, longest = 0;
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err = PR_GetSpecialFD(PR_StandardError);
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while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
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{
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if (PL_OPT_BAD == os) {
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continue;
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}
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switch (opt->option)
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{
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case 0: /* Name of file to create */
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filename = opt->value;
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break;
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case 'S': /* Use sych option on file */
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flags |= PR_SYNC;
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break;
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case 'K': /* Size of file to write */
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filesize = atoi(opt->value);
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break;
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case 'c': /* Number of iterations */
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iterations = atoi(opt->value);
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break;
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case 'h': /* user wants some guidance */
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default: /* user needs some guidance */
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Help(); /* so give him an earful */
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return 2; /* but not a lot else */
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}
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}
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PL_DestroyOptState(opt);
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file = PR_Open(filename, flags, 0666);
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if (NULL == file)
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{
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PL_FPrintError(err, "Failed to open file");
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return 1;
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}
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buffer = (PRUint8*)PR_CALLOC(1024);
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if (NULL == buffer)
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{
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PL_FPrintError(err, "Cannot allocate buffer");
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return 1;
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}
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for (index = 0; index < sizeof(buffer); ++index) {
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buffer[index] = (PRUint8)index;
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}
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for (loops = 0; loops < iterations; ++loops)
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{
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time = PR_IntervalNow();
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for (index = 0; index < filesize; ++index)
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{
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PR_Write(file, buffer, 1024);
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}
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time = (PR_IntervalNow() - time);
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total += time;
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if (time < shortest) {
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shortest = time;
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}
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else if (time > longest) {
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longest = time;
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}
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if (0 != PR_Seek(file, 0, PR_SEEK_SET))
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{
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PL_FPrintError(err, "Rewinding file");
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return 1;
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}
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}
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total = total / iterations;
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PR_fprintf(
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err, "%u iterations over a %u kbyte %sfile: %u [%u] %u\n",
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iterations, filesize, ((flags & PR_SYNC) ? "SYNCH'd " : ""),
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PR_IntervalToMicroseconds(shortest),
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PR_IntervalToMicroseconds(total),
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PR_IntervalToMicroseconds(longest));
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PR_DELETE(buffer);
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rv = PR_Close(file);
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if (PR_SUCCESS != rv)
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{
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PL_FPrintError(err, "Closing file failed");
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return 1;
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}
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rv = PR_Delete(filename);
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if (PR_SUCCESS != rv)
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{
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PL_FPrintError(err, "Deleting file failed");
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return 1;
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}
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return 0;
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}
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