The Tor Browser / file comparison
comparison: nsprpub/pr/tests/fsync.c
nsprpub/pr/tests/fsync.c
- branch
- TOR_BUG_9701
- changeset 13
- 44a2da4a2ab2
equal
deleted
inserted
replaced
| -1:000000000000 | 0:5567bb683234 |
|---|---|
| 1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ | |
| 2 /* This Source Code Form is subject to the terms of the Mozilla Public | |
| 3 * License, v. 2.0. If a copy of the MPL was not distributed with this | |
| 4 * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ | |
| 5 | |
| 6 #include "prio.h" | |
| 7 #include "prmem.h" | |
| 8 #include "prprf.h" | |
| 9 #include "prinrval.h" | |
| 10 | |
| 11 #include "plerror.h" | |
| 12 #include "plgetopt.h" | |
| 13 | |
| 14 static PRFileDesc *err = NULL; | |
| 15 | |
| 16 static void Help(void) | |
| 17 { | |
| 18 PR_fprintf(err, "Usage: [-S] [-K <n>] [-h] <filename>\n"); | |
| 19 PR_fprintf(err, "\t-c Nuber of iterations (default: 10)\n"); | |
| 20 PR_fprintf(err, "\t-S Sync the file (default: FALSE)\n"); | |
| 21 PR_fprintf(err, "\t-K Size of file (K bytes) (default: 10)\n"); | |
| 22 PR_fprintf(err, "\t Name of file to write (default: /usr/tmp/sync.dat)\n"); | |
| 23 PR_fprintf(err, "\t-h This message and nothing else\n"); | |
| 24 } /* Help */ | |
| 25 | |
| 26 int main(int argc, char **argv) | |
| 27 { | |
| 28 PRStatus rv; | |
| 29 PLOptStatus os; | |
| 30 PRUint8 *buffer; | |
| 31 PRFileDesc *file = NULL; | |
| 32 const char *filename = "sync.dat"; | |
| 33 PRUint32 index, loops, iterations = 10, filesize = 10; | |
| 34 PRIntn flags = PR_WRONLY | PR_CREATE_FILE | PR_TRUNCATE; | |
| 35 PLOptState *opt = PL_CreateOptState(argc, argv, "hSK:c:"); | |
| 36 PRIntervalTime time, total = 0, shortest = 0x7fffffff, longest = 0; | |
| 37 | |
| 38 err = PR_GetSpecialFD(PR_StandardError); | |
| 39 | |
| 40 while (PL_OPT_EOL != (os = PL_GetNextOpt(opt))) | |
| 41 { | |
| 42 if (PL_OPT_BAD == os) continue; | |
| 43 switch (opt->option) | |
| 44 { | |
| 45 case 0: /* Name of file to create */ | |
| 46 filename = opt->value; | |
| 47 break; | |
| 48 case 'S': /* Use sych option on file */ | |
| 49 flags |= PR_SYNC; | |
| 50 break; | |
| 51 case 'K': /* Size of file to write */ | |
| 52 filesize = atoi(opt->value); | |
| 53 break; | |
| 54 case 'c': /* Number of iterations */ | |
| 55 iterations = atoi(opt->value); | |
| 56 break; | |
| 57 case 'h': /* user wants some guidance */ | |
| 58 default: /* user needs some guidance */ | |
| 59 Help(); /* so give him an earful */ | |
| 60 return 2; /* but not a lot else */ | |
| 61 } | |
| 62 } | |
| 63 PL_DestroyOptState(opt); | |
| 64 | |
| 65 file = PR_Open(filename, flags, 0666); | |
| 66 if (NULL == file) | |
| 67 { | |
| 68 PL_FPrintError(err, "Failed to open file"); | |
| 69 return 1; | |
| 70 } | |
| 71 | |
| 72 buffer = (PRUint8*)PR_CALLOC(1024); | |
| 73 if (NULL == buffer) | |
| 74 { | |
| 75 PL_FPrintError(err, "Cannot allocate buffer"); | |
| 76 return 1; | |
| 77 } | |
| 78 | |
| 79 for (index = 0; index < sizeof(buffer); ++index) | |
| 80 buffer[index] = (PRUint8)index; | |
| 81 | |
| 82 for (loops = 0; loops < iterations; ++loops) | |
| 83 { | |
| 84 time = PR_IntervalNow(); | |
| 85 for (index = 0; index < filesize; ++index) | |
| 86 { | |
| 87 PR_Write(file, buffer, 1024); | |
| 88 } | |
| 89 time = (PR_IntervalNow() - time); | |
| 90 | |
| 91 total += time; | |
| 92 if (time < shortest) shortest = time; | |
| 93 else if (time > longest) longest = time; | |
| 94 if (0 != PR_Seek(file, 0, PR_SEEK_SET)) | |
| 95 { | |
| 96 PL_FPrintError(err, "Rewinding file"); | |
| 97 return 1; | |
| 98 } | |
| 99 } | |
| 100 | |
| 101 total = total / iterations; | |
| 102 PR_fprintf( | |
| 103 err, "%u iterations over a %u kbyte %sfile: %u [%u] %u\n", | |
| 104 iterations, filesize, ((flags & PR_SYNC) ? "SYNCH'd " : ""), | |
| 105 PR_IntervalToMicroseconds(shortest), | |
| 106 PR_IntervalToMicroseconds(total), | |
| 107 PR_IntervalToMicroseconds(longest)); | |
| 108 | |
| 109 PR_DELETE(buffer); | |
| 110 rv = PR_Close(file); | |
| 111 if (PR_SUCCESS != rv) | |
| 112 { | |
| 113 PL_FPrintError(err, "Closing file failed"); | |
| 114 return 1; | |
| 115 } | |
| 116 rv = PR_Delete(filename); | |
| 117 if (PR_SUCCESS != rv) | |
| 118 { | |
| 119 PL_FPrintError(err, "Deleting file failed"); | |
| 120 return 1; | |
| 121 } | |
| 122 return 0; | |
| 123 } |
