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