The Tor Browser: nsprpub/pr/tests/bigfile.c@925c144e1f1f (annotated)

nsprpub/pr/tests/bigfile.c@925c144e1f1f (annotated)

nsprpub/pr/tests/bigfile.c

Fri, 16 Jan 2015 18:13:44 +0100

author: Michael Schloh von Bennewitz <michael@schloh.com>
date: Fri, 16 Jan 2015 18:13:44 +0100
branch: TOR_BUG_9701
changeset 14: 925c144e1f1f
permissions: -rw-r--r--

Integrate suggestion from review to improve consistency with existing code.

 /* -*- 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
  * file, You can obtain one at http://mozilla.org/MPL/2.0/. */
 #include "prio.h"
 #include "prmem.h"
 #include "prprf.h"
 #include "prinit.h"
 #include "prerror.h"
 #include "prthread.h"
 #include "plerror.h"
 #include "plgetopt.h"
 #define DEFAULT_COUNT 10
 #define DEFAULT_FILESIZE 1
 #define BUFFER_SIZE 1000000
 typedef enum {v_silent, v_whisper, v_shout} Verbosity;
 static void Verbose(Verbosity, const char*, const char*, PRIntn);
 #define VERBOSE(_l, _m) Verbose(_l, _m, __FILE__, __LINE__)
 static PRIntn test_result = 2;
 static PRFileDesc *output = NULL;
 static PRIntn verbose = v_silent;
 static PRIntn filesize = DEFAULT_FILESIZE;
 static PRIntn Usage(void)
 {
     PR_fprintf(output, "Bigfile test usage:\n");
     PR_fprintf(output, ">bigfile [-G] [-d] [-v[*v]] [-s <n>] <filename>\n");
     PR_fprintf(output, "\td\tdebug mode (equivalent to -vvv)\t(false)\n");
     PR_fprintf(output, "\tv\tAdditional levels of output\t(none)\n");
     PR_fprintf(output, "\tk\tKeep data file after exit\t(false)\n");
     PR_fprintf(output, "\ts <n>\tFile size in megabytes\t\t(1 megabyte)\n");
     PR_fprintf(output, "\t<filename>\tName of test file\t(none)\n");
     return 2;  /* nothing happened */
 }  /* Usage */
 static PRStatus DeleteIfFound(const char *filename)
 {
     PRStatus rv;
     VERBOSE(v_shout, "Checking for existing file");
     rv = PR_Access(filename, PR_ACCESS_WRITE_OK);
     if (PR_SUCCESS == rv)
     {
         VERBOSE(v_shout, "Deleting existing file");
         rv = PR_Delete(filename);
         if (PR_FAILURE == rv) VERBOSE(v_shout, "Cannot delete big file");
     }
     else if (PR_FILE_NOT_FOUND_ERROR !=  PR_GetError())
         VERBOSE(v_shout, "Cannot access big file");
     else rv = PR_SUCCESS;
     return rv;
 }  /* DeleteIfFound */
 static PRIntn Error(const char *msg, const char *filename)
 {
     PRInt32 error = PR_GetError();
     if (NULL != msg)
     {
         if (0 == error) PR_fprintf(output, msg);
         else PL_FPrintError(output, msg);
     }
     (void)DeleteIfFound(filename);
     if (v_shout == verbose) PR_Abort();
     return 1;
 }  /* Error */
 static void Verbose(
     Verbosity level, const char *msg, const char *file, PRIntn line)
 {
     if (level <= verbose)
         PR_fprintf(output, "[%s : %d]: %s\n", file, line, msg);
 }  /* Verbose */
 static void PrintInfo(PRFileInfo64 *info, const char *filename)
 {
     PRExplodedTime tm;
     char ctime[40], mtime[40];
     static const char *types[] = {"FILE", "DIRECTORY", "OTHER"};
     PR_fprintf(
         output, "[%s : %d]: File info for %s\n",
         __FILE__, __LINE__, filename);
     PR_fprintf(
         output, "    type: %s, size: %llu bytes,\n",
         types[info->type - 1], info->size);
     PR_ExplodeTime(info->creationTime, PR_GMTParameters, &tm);
     (void)PR_FormatTime(ctime, sizeof(ctime), "%c GMT", &tm);
     PR_ExplodeTime(info->modifyTime, PR_GMTParameters, &tm);
     (void)PR_FormatTime(mtime, sizeof(mtime), "%c GMT", &tm);
     PR_fprintf(
         output, "    creation: %s,\n    modify: %s\n", ctime, mtime);
 }  /* PrintInfo */
 int main(int argc, char **argv)
 {
     PRStatus rv;
     char *buffer;
     PLOptStatus os;
     PRInt32 loop, bytes;
     PRFileInfo small_info;
     PRFileInfo64 big_info;
     PRBool keep = PR_FALSE;
     PRFileDesc *file = NULL;
     const char *filename = NULL;
     PRIntn count = DEFAULT_COUNT;
     PRInt64 filesize64, big_answer, big_size, one_meg, zero_meg, big_fragment;
     PRInt64 sevenFox = LL_INIT(0,0x7fffffff);
     PLOptState *opt = PL_CreateOptState(argc, argv, "dtvhs:");
     output = PR_GetSpecialFD(PR_StandardError);
     PR_STDIO_INIT();
     while (PL_OPT_EOL != (os = PL_GetNextOpt(opt)))
     {
         if (PL_OPT_BAD == os) continue;
         switch (opt->option)
         {
         case 0:
             filename = opt->value;
             break;
         case 'd':  /* debug mode */
             verbose = v_shout;
             break;
         case 'k':  /* keep file */
             keep = PR_TRUE;
             break;
         case 'v':  /* verbosity */
             if (v_shout > verbose) verbose += 1;
             break;
         case 'c':  /* loop counter */
             count = atoi(opt->value);
             break;
         case 's':  /* filesize */
             filesize = atoi(opt->value);
             break;
         case 'h':  /* confused */
         default:
             return Usage();
         }
     }
     PL_DestroyOptState(opt);
     if (0 == count) count = DEFAULT_COUNT;
     if (0 == filesize) filesize = DEFAULT_FILESIZE;
     if (NULL == filename)
     {
 #ifdef SYMBIAN
 #define FILE_NAME "c:\\data\\bigfile.dat"
 #else
 #define FILE_NAME "bigfile.dat"
 #endif
         if (DEFAULT_FILESIZE != filesize) return Usage();
         else filename = FILE_NAME;
     }
     if (PR_FAILURE == DeleteIfFound(filename)) return 1;
     test_result = 0;
     LL_I2L(zero_meg, 0);
     LL_I2L(one_meg, 1000000);
     LL_I2L(filesize64, filesize);
     buffer = (char*)PR_MALLOC(BUFFER_SIZE);
     LL_I2L(big_fragment, BUFFER_SIZE);
     LL_MUL(filesize64, filesize64, one_meg);
     for (loop = 0; loop < BUFFER_SIZE; ++loop) buffer[loop] = (char)loop;
     VERBOSE(v_whisper, "Creating big file");
     file = PR_Open(filename, PR_CREATE_FILE | PR_WRONLY, 0666);
     if (NULL == file) return Error("PR_Open()", filename);
     VERBOSE(v_whisper, "Testing available space in empty file");
     big_answer = file->methods->available64(file);
     if (!LL_IS_ZERO(big_answer)) return Error("empty available64()", filename);
 	LL_SUB(big_size, filesize64, one_meg);
     VERBOSE(v_whisper, "Creating sparse big file by seeking to end");
 	big_answer = file->methods->seek64(file, big_size, PR_SEEK_SET);
     if (!LL_EQ(big_answer, big_size)) return Error("seek", filename);
     VERBOSE(v_whisper, "Writing block at end of sparse file");
 	bytes = file->methods->write(file, buffer, BUFFER_SIZE);
     if (bytes != BUFFER_SIZE) return Error("write", filename);
     VERBOSE(v_whisper, "Testing available space at end of sparse file");
     big_answer = file->methods->available64(file);
     if (!LL_IS_ZERO(big_answer)) return Error("eof available64()", filename);
     VERBOSE(v_whisper, "Getting big info on sparse big file");
     rv = file->methods->fileInfo64(file, &big_info);
     if (PR_FAILURE == rv) return Error("fileInfo64()", filename);
     if (v_shout <= verbose) PrintInfo(&big_info, filename);
     VERBOSE(v_whisper, "Getting small info on sparse big file");
     rv = file->methods->fileInfo(file, &small_info);
     if (LL_CMP(sevenFox, <, filesize64) && (PR_SUCCESS == rv))
     {
         VERBOSE(v_whisper, "Should have failed and didn't");
         return Error("fileInfo()", filename);
     }
     else if (LL_CMP(sevenFox, >, filesize64) && (PR_FAILURE == rv))
     {
         VERBOSE(v_whisper, "Should have succeeded and didn't");
         return Error("fileInfo()", filename);
     }
     VERBOSE(v_whisper, "Rewinding big file");
     big_answer = file->methods->seek64(file, zero_meg, PR_SEEK_SET);
     if (!LL_IS_ZERO(big_answer)) return Error("rewind seek64()", filename);
     VERBOSE(v_whisper, "Establishing available space in rewound file");
     big_answer = file->methods->available64(file);
     if (LL_NE(filesize64, big_answer))
         return Error("bof available64()", filename);
     VERBOSE(v_whisper, "Closing big file");
     rv = file->methods->close(file);
     if (PR_FAILURE == rv) return Error("close()", filename);
     VERBOSE(v_whisper, "Reopening big file");
     file = PR_Open(filename, PR_RDWR, 0666);
     if (NULL == file) return Error("open failed", filename);
     VERBOSE(v_whisper, "Checking available data in reopened file");
     big_answer = file->methods->available64(file);
     if (LL_NE(filesize64, big_answer))
         return Error("reopened available64()", filename);
     big_answer = zero_meg;
     VERBOSE(v_whisper, "Rewriting every byte of big file data");
     do
     {
         bytes = file->methods->write(file, buffer, BUFFER_SIZE);
         if (bytes != BUFFER_SIZE)
             return Error("write", filename);
         LL_ADD(big_answer, big_answer, big_fragment);
     } while (LL_CMP(big_answer, <, filesize64));
     VERBOSE(v_whisper, "Checking position at eof");
     big_answer = file->methods->seek64(file, zero_meg, PR_SEEK_CUR);
     if (LL_NE(big_answer, filesize64))
         return Error("file size error", filename);
     VERBOSE(v_whisper, "Testing available space at eof");
     big_answer = file->methods->available64(file);
     if (!LL_IS_ZERO(big_answer))
         return Error("eof available64()", filename);
     VERBOSE(v_whisper, "Rewinding full file");
     big_answer = file->methods->seek64(file, zero_meg, PR_SEEK_SET);
     if (!LL_IS_ZERO(big_answer)) return Error("bof seek64()", filename);
     VERBOSE(v_whisper, "Testing available space in rewound file");
     big_answer = file->methods->available64(file);
     if (LL_NE(big_answer, filesize64)) return Error("bof available64()", filename);
     VERBOSE(v_whisper, "Seeking to end of big file");
     big_answer = file->methods->seek64(file, filesize64, PR_SEEK_SET);
     if (LL_NE(big_answer, filesize64)) return Error("eof seek64()", filename);
     VERBOSE(v_whisper, "Getting info on big file while it's open");
     rv = file->methods->fileInfo64(file, &big_info);
     if (PR_FAILURE == rv) return Error("fileInfo64()", filename);
     if (v_shout <= verbose) PrintInfo(&big_info, filename);
     VERBOSE(v_whisper, "Closing big file");
     rv = file->methods->close(file);
     if (PR_FAILURE == rv) return Error("close()", filename);
     VERBOSE(v_whisper, "Getting info on big file after it's closed");
     rv = PR_GetFileInfo64(filename, &big_info);
     if (PR_FAILURE == rv) return Error("fileInfo64()", filename);
     if (v_shout <= verbose) PrintInfo(&big_info, filename);
     VERBOSE(v_whisper, "Deleting big file");
     rv = PR_Delete(filename);
     if (PR_FAILURE == rv) return Error("PR_Delete()", filename);
     PR_DELETE(buffer);
     return test_result;
 } /* main */
 /* bigfile.c */

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nsprpub/pr/tests/bigfile.c@925c144e1f1f (annotated)

nsprpub/pr/tests/bigfile.c