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| 1 /* | |
| 2 * Copyright (C) 2012 Apple Inc. All rights reserved. | |
| 3 * | |
| 4 * Redistribution and use in source and binary forms, with or without | |
| 5 * modification, are permitted provided that the following conditions | |
| 6 * are met: | |
| 7 * 1. Redistributions of source code must retain the above copyright | |
| 8 * notice, this list of conditions and the following disclaimer. | |
| 9 * 2. Redistributions in binary form must reproduce the above copyright | |
| 10 * notice, this list of conditions and the following disclaimer in the | |
| 11 * documentation and/or other materials provided with the distribution. | |
| 12 * | |
| 13 * THIS SOFTWARE IS PROVIDED BY APPLE INC. ``AS IS'' AND ANY | |
| 14 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE | |
| 15 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR | |
| 16 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL APPLE INC. OR | |
| 17 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, | |
| 18 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, | |
| 19 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR | |
| 20 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY | |
| 21 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT | |
| 22 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE | |
| 23 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. | |
| 24 */ | |
| 25 | |
| 26 #include "config.h" | |
| 27 #include "DataLog.h" | |
| 28 #include <stdarg.h> | |
| 29 #include <wtf/FilePrintStream.h> | |
| 30 #include <wtf/WTFThreadData.h> | |
| 31 #include <wtf/Threading.h> | |
| 32 | |
| 33 #if OS(UNIX) | |
| 34 #include <unistd.h> | |
| 35 #endif | |
| 36 | |
| 37 #if OS(WINCE) | |
| 38 #ifndef _IONBF | |
| 39 #define _IONBF 0x0004 | |
| 40 #endif | |
| 41 #endif | |
| 42 | |
| 43 #define DATA_LOG_TO_FILE 0 | |
| 44 | |
| 45 // Uncomment to force logging to the given file regardless of what the environme
nt variable says. Note that | |
| 46 // we will append ".<pid>.txt" where <pid> is the PID. | |
| 47 | |
| 48 // This path won't work on Windows, make sure to change to something like C:\\Us
ers\\<more path>\\log.txt. | |
| 49 #define DATA_LOG_FILENAME "/tmp/WTFLog" | |
| 50 | |
| 51 namespace WTF { | |
| 52 | |
| 53 #if USE(PTHREADS) | |
| 54 static pthread_once_t initializeLogFileOnceKey = PTHREAD_ONCE_INIT; | |
| 55 #endif | |
| 56 | |
| 57 static FilePrintStream* file; | |
| 58 | |
| 59 static void initializeLogFileOnce() | |
| 60 { | |
| 61 #if DATA_LOG_TO_FILE | |
| 62 #ifdef DATA_LOG_FILENAME | |
| 63 const char* filename = DATA_LOG_FILENAME; | |
| 64 #else | |
| 65 const char* filename = getenv("WTF_DATA_LOG_FILENAME"); | |
| 66 #endif | |
| 67 char actualFilename[1024]; | |
| 68 | |
| 69 snprintf(actualFilename, sizeof(actualFilename), "%s.%d.txt", filename, getp
id()); | |
| 70 | |
| 71 if (filename) { | |
| 72 file = FilePrintStream::open(actualFilename, "w").leakPtr(); | |
| 73 if (!file) | |
| 74 fprintf(stderr, "Warning: Could not open log file %s for writing.\n"
, actualFilename); | |
| 75 } | |
| 76 #endif // DATA_LOG_TO_FILE | |
| 77 if (!file) | |
| 78 file = new FilePrintStream(stderr, FilePrintStream::Borrow); | |
| 79 | |
| 80 setvbuf(file->file(), 0, _IONBF, 0); // Prefer unbuffered output, so that we
get a full log upon crash or deadlock. | |
| 81 } | |
| 82 | |
| 83 static void initializeLogFile() | |
| 84 { | |
| 85 #if USE(PTHREADS) | |
| 86 pthread_once(&initializeLogFileOnceKey, initializeLogFileOnce); | |
| 87 #else | |
| 88 if (!file) | |
| 89 initializeLogFileOnce(); | |
| 90 #endif | |
| 91 } | |
| 92 | |
| 93 FilePrintStream& dataFile() | |
| 94 { | |
| 95 initializeLogFile(); | |
| 96 return *file; | |
| 97 } | |
| 98 | |
| 99 void dataLogFV(const char* format, va_list argList) | |
| 100 { | |
| 101 dataFile().vprintf(format, argList); | |
| 102 } | |
| 103 | |
| 104 void dataLogF(const char* format, ...) | |
| 105 { | |
| 106 va_list argList; | |
| 107 va_start(argList, format); | |
| 108 dataLogFV(format, argList); | |
| 109 va_end(argList); | |
| 110 } | |
| 111 | |
| 112 void dataLogFString(const char* str) | |
| 113 { | |
| 114 dataFile().printf("%s", str); | |
| 115 } | |
| 116 | |
| 117 } // namespace WTF | |
| 118 | |
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Chromium Code Reviews
Issue 14238015:
Move Source/WTF/wtf to Source/wtf (Closed)
Base URL: svn://svn.chromium.org/blink/trunk