Chromium Code Reviews| Index: third_party/libjingle/overrides/talk/base/logging.cc | 
| =================================================================== | 
| --- third_party/libjingle/overrides/talk/base/logging.cc (revision 0) | 
| +++ third_party/libjingle/overrides/talk/base/logging.cc (revision 0) | 
| @@ -0,0 +1,235 @@ | 
| +// Copyright (c) 2011 The Chromium Authors. All rights reserved. | 
| 
 
Sergey Ulanov
2012/01/11 19:54:48
2012
 
hellner
2012/01/11 23:53:31
Done.
 
 | 
| +// Use of this source code is governed by a BSD-style license that can be | 
| +// found in the LICENSE file. | 
| + | 
| +#include "third_party/libjingle/overrides/talk/base/logging.h" | 
| + | 
| +#include <iomanip> | 
| + | 
| +#include "third_party/libjingle/source/talk/base/stringencode.h" | 
| +#include "third_party/libjingle/source/talk/base/stringutils.h" | 
| + | 
| +// LOG_E can't call VLOG directly like LOG_V can since VLOG expands into usage | 
| +// of the __FILE__ macro (for filtering) and the actual VLOG call from LOG_E | 
| +// happens inside LogEHelper. Note that the second parameter to the LAZY_STREAM | 
| +// macro is true since the filter check is already done for LOG_E. | 
| +#define LOG_E_BASE(file_name, line_number, sev) \ | 
| + LAZY_STREAM(logging::LogMessage(file_name, line_number, \ | 
| + -sev).stream(), true) | 
| + | 
| +namespace talk_base { | 
| + | 
| +///////////////////////////////////////////////////////////////////////////// | 
| +// Constant Labels | 
| +///////////////////////////////////////////////////////////////////////////// | 
| + | 
| +const char* FindLabel(int value, const ConstantLabel entries[]) { | 
| + for (int i = 0; entries[i].label; ++i) { | 
| + if (value == entries[i].value) return entries[i].label; | 
| + } | 
| + return 0; | 
| +} | 
| + | 
| +std::string ErrorName(int err, const ConstantLabel* err_table) { | 
| + if (err == 0) | 
| + return "No error"; | 
| + | 
| + if (err_table != 0) { | 
| + if (const char * value = FindLabel(err, err_table)) | 
| + return value; | 
| + } | 
| + | 
| + char buffer[16]; | 
| + snprintf(buffer, sizeof(buffer), "0x%08x", err); | 
| + return buffer; | 
| +} | 
| + | 
| +///////////////////////////////////////////////////////////////////////////// | 
| +// LogEHelper | 
| +///////////////////////////////////////////////////////////////////////////// | 
| + | 
| +// Summarizes LOG_E messages as strings. | 
| +std::string GenerateExtra(LogErrorContext err_ctx, int err, | 
| 
 
Sergey Ulanov
2012/01/11 19:54:48
nit: mark as static or move to nameless namespace
 
hellner
2012/01/11 23:53:31
Done.
 
 | 
| + const char* module) { | 
| + if (err_ctx != ERRCTX_NONE) { | 
| + std::ostringstream tmp; | 
| + tmp << ": "; | 
| + tmp << "[0x" << std::setfill('0') << std::hex << std::setw(8) << err << "]"; | 
| + switch (err_ctx) { | 
| + case ERRCTX_ERRNO: | 
| + tmp << " " << strerror(err); | 
| + break; | 
| +#if OS_WIN32 | 
| 
 
Sergey Ulanov
2012/01/11 19:54:48
It is OS_WIN, not OS_WIN32. The canonical form is
 
hellner
2012/01/11 23:53:31
Done.
 
 | 
| + case ERRCTX_HRESULT: { | 
| + char msgbuf[256]; | 
| + DWORD flags = FORMAT_MESSAGE_FROM_SYSTEM; | 
| + HMODULE hmod = GetModuleHandleA(module); | 
| + if (hmod) | 
| + flags |= FORMAT_MESSAGE_FROM_HMODULE; | 
| + if (DWORD len = FormatMessageA( | 
| + flags, hmod, err, | 
| + MAKELANGID(LANG_NEUTRAL, SUBLANG_DEFAULT), | 
| + msgbuf, sizeof(msgbuf) / sizeof(msgbuf[0]), NULL)) { | 
| + while ((len > 0) && | 
| + isspace(static_cast<unsigned char>(msgbuf[len-1]))) { | 
| + msgbuf[--len] = 0; | 
| + } | 
| + tmp << " " << msgbuf; | 
| + } | 
| + break; | 
| + } | 
| +#endif // OS_WIN32 | 
| +#if OS_MACOSX | 
| 
 
Sergey Ulanov
2012/01/11 19:54:48
same here
 
hellner
2012/01/11 23:53:31
Done.
 
 | 
| + case ERRCTX_OSSTATUS: { | 
| + tmp << " " << nonnull(GetMacOSStatusErrorString(err), "Unknown error"); | 
| + if (const char* desc = GetMacOSStatusCommentString(err)) { | 
| + tmp << ": " << desc; | 
| + } | 
| + break; | 
| + } | 
| +#endif // OS_MACOSX | 
| + default: | 
| + break; | 
| + } | 
| + return tmp.str(); | 
| + } | 
| + return ""; | 
| +} | 
| + | 
| +LogEHelper::LogEHelper(const char* file, | 
| + int line, | 
| + LoggingSeverity severity, | 
| + LogErrorContext err_ctx, | 
| + int err, | 
| + const char* module) | 
| + : file_name_(file), | 
| + line_(line), | 
| + severity_(severity) { | 
| + extra_ = GenerateExtra(err_ctx, err, module); | 
| +} | 
| + | 
| +LogEHelper::~LogEHelper() { | 
| + print_stream_ << extra_; | 
| + const std::string& str = print_stream_.str(); | 
| + LOG_E_BASE(file_name_.c_str(), line_, severity_) << str; | 
| +} | 
| + | 
| +// Note: this function is a copy from the overriden libjingle implementation. | 
| +void LogMultiline(LoggingSeverity level, const char* label, bool input, | 
| + const void* data, size_t len, bool hex_mode, | 
| + LogMultilineState* state) { | 
| + if (!LOG_CHECK_LEVEL_V(level)) | 
| + return; | 
| + | 
| + const char * direction = (input ? " << " : " >> "); | 
| + | 
| + // NULL data means to flush our count of unprintable characters. | 
| + if (!data) { | 
| + if (state && state->unprintable_count_[input]) { | 
| + LOG_V(level) << label << direction << "## " | 
| + << state->unprintable_count_[input] | 
| + << " consecutive unprintable ##"; | 
| + state->unprintable_count_[input] = 0; | 
| + } | 
| + return; | 
| + } | 
| + | 
| + // The ctype classification functions want unsigned chars. | 
| + const unsigned char* udata = static_cast<const unsigned char*>(data); | 
| + | 
| + if (hex_mode) { | 
| + const size_t LINE_SIZE = 24; | 
| + char hex_line[LINE_SIZE * 9 / 4 + 2], asc_line[LINE_SIZE + 1]; | 
| + while (len > 0) { | 
| + memset(asc_line, ' ', sizeof(asc_line)); | 
| + memset(hex_line, ' ', sizeof(hex_line)); | 
| + size_t line_len = _min(len, LINE_SIZE); | 
| + for (size_t i = 0; i < line_len; ++i) { | 
| + unsigned char ch = udata[i]; | 
| + asc_line[i] = isprint(ch) ? ch : '.'; | 
| + hex_line[i*2 + i/4] = hex_encode(ch >> 4); | 
| + hex_line[i*2 + i/4 + 1] = hex_encode(ch & 0xf); | 
| + } | 
| + asc_line[sizeof(asc_line)-1] = 0; | 
| + hex_line[sizeof(hex_line)-1] = 0; | 
| + LOG_V(level) << label << direction | 
| + << asc_line << " " << hex_line << " "; | 
| + udata += line_len; | 
| + len -= line_len; | 
| + } | 
| + return; | 
| + } | 
| + | 
| + size_t consecutive_unprintable = state ? state->unprintable_count_[input] : 0; | 
| + | 
| + const unsigned char* end = udata + len; | 
| + while (udata < end) { | 
| + const unsigned char* line = udata; | 
| + const unsigned char* end_of_line = strchrn<unsigned char>(udata, | 
| + end - udata, | 
| + '\n'); | 
| + if (!end_of_line) { | 
| + udata = end_of_line = end; | 
| + } else { | 
| + udata = end_of_line + 1; | 
| + } | 
| + | 
| + bool is_printable = true; | 
| + | 
| + // If we are in unprintable mode, we need to see a line of at least | 
| + // kMinPrintableLine characters before we'll switch back. | 
| + const ptrdiff_t kMinPrintableLine = 4; | 
| + if (consecutive_unprintable && ((end_of_line - line) < kMinPrintableLine)) { | 
| + is_printable = false; | 
| + } else { | 
| + // Determine if the line contains only whitespace and printable | 
| + // characters. | 
| + bool is_entirely_whitespace = true; | 
| + for (const unsigned char* pos = line; pos < end_of_line; ++pos) { | 
| + if (isspace(*pos)) | 
| + continue; | 
| + is_entirely_whitespace = false; | 
| + if (!isprint(*pos)) { | 
| + is_printable = false; | 
| + break; | 
| + } | 
| + } | 
| + // Treat an empty line following unprintable data as unprintable. | 
| + if (consecutive_unprintable && is_entirely_whitespace) { | 
| + is_printable = false; | 
| + } | 
| + } | 
| + if (!is_printable) { | 
| + consecutive_unprintable += (udata - line); | 
| + continue; | 
| + } | 
| + // Print out the current line, but prefix with a count of prior unprintable | 
| + // characters. | 
| + if (consecutive_unprintable) { | 
| + LOG_V(level) << label << direction << "## " << consecutive_unprintable | 
| + << " consecutive unprintable ##"; | 
| + consecutive_unprintable = 0; | 
| + } | 
| + // Strip off trailing whitespace. | 
| + while ((end_of_line > line) && isspace(*(end_of_line-1))) { | 
| + --end_of_line; | 
| + } | 
| + // Filter out any private data | 
| + std::string substr(reinterpret_cast<const char*>(line), end_of_line - line); | 
| + std::string::size_type pos_private = substr.find("Email"); | 
| + if (pos_private == std::string::npos) { | 
| + pos_private = substr.find("Passwd"); | 
| + } | 
| + if (pos_private == std::string::npos) { | 
| + LOG_V(level) << label << direction << substr; | 
| + } else { | 
| + LOG_V(level) << label << direction << "## omitted for privacy ##"; | 
| + } | 
| + } | 
| + | 
| + if (state) { | 
| + state->unprintable_count_[input] = consecutive_unprintable; | 
| + } | 
| +} | 
| + | 
| +} // namespace talk_base | 
| Property changes on: third_party/libjingle/overrides/talk/base/logging.cc | 
| ___________________________________________________________________ | 
| Added: svn:eol-style | 
| + LF |