Assertions.cpp revision cad810f21b803229eb11403f9209855525a25d57 
1/*
2 * Copyright (C) 2003, 2006, 2007 Apple Inc.  All rights reserved.
3 * Copyright (C) 2007-2009 Torch Mobile, Inc.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY APPLE COMPUTER, INC. ``AS IS'' AND ANY
15 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
17 * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL APPLE COMPUTER, INC. OR
18 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
19 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
20 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
21 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY
22 * OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
24 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
25 */
26
27#include "config.h"
28#include "Assertions.h"
29
30#include <stdio.h>
31#include <stdarg.h>
32#include <string.h>
33
34#if PLATFORM(MAC)
35#include <CoreFoundation/CFString.h>
36#endif
37
38#if COMPILER(MSVC) && !OS(WINCE) && !PLATFORM(BREWMP)
39#ifndef WINVER
40#define WINVER 0x0500
41#endif
42#ifndef _WIN32_WINNT
43#define _WIN32_WINNT 0x0500
44#endif
45#include <crtdbg.h>
46#endif
47
48#if OS(WINDOWS)
49#include <windows.h>
50#endif
51
52#if PLATFORM(BREWMP)
53#include <AEEdbg.h>
54#include <wtf/Vector.h>
55#endif
56
57extern "C" {
58
59#if PLATFORM(BREWMP)
60
61static void printLog(const Vector<char>& buffer)
62{
63    // Each call to DBGPRINTF generates at most 128 bytes of output on the Windows SDK.
64    // On Qualcomm chipset targets, DBGPRINTF() comes out the diag port (though this may change).
65    // The length of each output string is constrained even more than on the Windows SDK.
66#if COMPILER(MSVC)
67    const int printBufferSize = 128;
68#else
69    const int printBufferSize = 32;
70#endif
71
72    char printBuffer[printBufferSize + 1];
73    printBuffer[printBufferSize] = 0; // to guarantee null termination
74
75    const char* p = buffer.data();
76    const char* end = buffer.data() + buffer.size();
77    while (p < end) {
78        strncpy(printBuffer, p, printBufferSize);
79        dbg_Message(printBuffer, DBG_MSG_LEVEL_HIGH, __FILE__, __LINE__);
80        p += printBufferSize;
81    }
82}
83
84#endif
85
86WTF_ATTRIBUTE_PRINTF(1, 0)
87static void vprintf_stderr_common(const char* format, va_list args)
88{
89#if PLATFORM(MAC)
90    if (strstr(format, "%@")) {
91        CFStringRef cfFormat = CFStringCreateWithCString(NULL, format, kCFStringEncodingUTF8);
92        CFStringRef str = CFStringCreateWithFormatAndArguments(NULL, NULL, cfFormat, args);
93
94        int length = CFStringGetMaximumSizeForEncoding(CFStringGetLength(str), kCFStringEncodingUTF8);
95        char* buffer = (char*)malloc(length + 1);
96
97        CFStringGetCString(str, buffer, length, kCFStringEncodingUTF8);
98
99        fputs(buffer, stderr);
100
101        free(buffer);
102        CFRelease(str);
103        CFRelease(cfFormat);
104    } else
105#elif PLATFORM(BREWMP)
106    // When str is 0, the return value is the number of bytes needed
107    // to accept the result including null termination.
108    int size = vsnprintf(0, 0, format, args);
109    if (size > 0) {
110        Vector<char> buffer(size);
111        vsnprintf(buffer.data(), size, format, args);
112        printLog(buffer);
113    }
114
115#elif HAVE(ISDEBUGGERPRESENT)
116    if (IsDebuggerPresent()) {
117        size_t size = 1024;
118
119        do {
120            char* buffer = (char*)malloc(size);
121
122            if (buffer == NULL)
123                break;
124
125            if (_vsnprintf(buffer, size, format, args) != -1) {
126#if OS(WINCE)
127                // WinCE only supports wide chars
128                wchar_t* wideBuffer = (wchar_t*)malloc(size * sizeof(wchar_t));
129                if (wideBuffer == NULL)
130                    break;
131                for (unsigned int i = 0; i < size; ++i) {
132                    if (!(wideBuffer[i] = buffer[i]))
133                        break;
134                }
135                OutputDebugStringW(wideBuffer);
136                free(wideBuffer);
137#else
138                OutputDebugStringA(buffer);
139#endif
140                free(buffer);
141                break;
142            }
143
144            free(buffer);
145            size *= 2;
146        } while (size > 1024);
147    }
148#endif
149#if OS(SYMBIAN)
150    vfprintf(stdout, format, args);
151#else
152    vfprintf(stderr, format, args);
153#endif
154}
155
156WTF_ATTRIBUTE_PRINTF(1, 2)
157static void printf_stderr_common(const char* format, ...)
158{
159    va_list args;
160    va_start(args, format);
161    vprintf_stderr_common(format, args);
162    va_end(args);
163}
164
165static void printCallSite(const char* file, int line, const char* function)
166{
167#if OS(WIN) && !OS(WINCE) && defined _DEBUG
168    _CrtDbgReport(_CRT_WARN, file, line, NULL, "%s\n", function);
169#else
170    printf_stderr_common("(%s:%d %s)\n", file, line, function);
171#endif
172}
173
174void WTFReportAssertionFailure(const char* file, int line, const char* function, const char* assertion)
175{
176    if (assertion)
177        printf_stderr_common("ASSERTION FAILED: %s\n", assertion);
178    else
179        printf_stderr_common("SHOULD NEVER BE REACHED\n");
180    printCallSite(file, line, function);
181}
182
183void WTFReportAssertionFailureWithMessage(const char* file, int line, const char* function, const char* assertion, const char* format, ...)
184{
185    printf_stderr_common("ASSERTION FAILED: ");
186    va_list args;
187    va_start(args, format);
188    vprintf_stderr_common(format, args);
189    va_end(args);
190    printf_stderr_common("\n%s\n", assertion);
191    printCallSite(file, line, function);
192}
193
194void WTFReportArgumentAssertionFailure(const char* file, int line, const char* function, const char* argName, const char* assertion)
195{
196    printf_stderr_common("ARGUMENT BAD: %s, %s\n", argName, assertion);
197    printCallSite(file, line, function);
198}
199
200void WTFReportFatalError(const char* file, int line, const char* function, const char* format, ...)
201{
202    printf_stderr_common("FATAL ERROR: ");
203    va_list args;
204    va_start(args, format);
205    vprintf_stderr_common(format, args);
206    va_end(args);
207    printf_stderr_common("\n");
208    printCallSite(file, line, function);
209}
210
211void WTFReportError(const char* file, int line, const char* function, const char* format, ...)
212{
213    printf_stderr_common("ERROR: ");
214    va_list args;
215    va_start(args, format);
216    vprintf_stderr_common(format, args);
217    va_end(args);
218    printf_stderr_common("\n");
219    printCallSite(file, line, function);
220}
221
222void WTFLog(WTFLogChannel* channel, const char* format, ...)
223{
224    if (channel->state != WTFLogChannelOn)
225        return;
226
227    va_list args;
228    va_start(args, format);
229    vprintf_stderr_common(format, args);
230    va_end(args);
231    if (format[strlen(format) - 1] != '\n')
232        printf_stderr_common("\n");
233}
234
235void WTFLogVerbose(const char* file, int line, const char* function, WTFLogChannel* channel, const char* format, ...)
236{
237    if (channel->state != WTFLogChannelOn)
238        return;
239
240    va_list args;
241    va_start(args, format);
242    vprintf_stderr_common(format, args);
243    va_end(args);
244    if (format[strlen(format) - 1] != '\n')
245        printf_stderr_common("\n");
246    printCallSite(file, line, function);
247}
248
249} // extern "C"
250