2 // Use of this source code is governed by a BSD-style license that can be
5 #include "src/log-utils.h"
7 #include "src/assert-scope.h"
9 #include "src/objects-inl.h"
10 #include "src/string-stream.h"
19 const char* const Log::kLogToTemporaryFile = "&";
20 const char* const Log::kLogToConsole = "-";
23 FILE* Log::CreateOutputHandle(const char* file_name) {  in CreateOutputHandle()
24   // If we're logging anything, we need to open the log file.  in CreateOutputHandle()
25   if (!Log::InitLogAtStart()) {  in CreateOutputHandle()
36 Log::Log(Logger* logger, const char* file_name)  in Log()  function in v8::internal::Log
38       output_handle_(Log::CreateOutputHandle(file_name)),  in Log()
42   // --log-all enables all the log flags.  in Log()
52   // --prof implies --log-code.  in Log()
56   Log::MessageBuilder msg(this);  in Log()
58   msg << "v8-version" << kNext << Version::GetMajor() << kNext  in Log()
68 FILE* Log::Close() {  in Close()
86 Log::MessageBuilder::MessageBuilder(Log* log)  in MessageBuilder()  argument
87     : log_(log), lock_guard_(&log_->mutex_) {  in MessageBuilder()
88   DCHECK_NOT_NULL(log_->format_buffer_);  in MessageBuilder()
91 void Log::MessageBuilder::AppendString(String* str,  in AppendString()
96   int length = str->length();  in AppendString()
99     uint16_t c = str->Get(i);  in AppendString()
103       // Escape non-ascii characters.  in AppendString()
109 void Log::MessageBuilder::AppendString(Vector<const char> str) {  in AppendString()
113 void Log::MessageBuilder::AppendString(const char* str) {  in AppendString()
118 void Log::MessageBuilder::AppendString(const char* str, size_t length) {  in AppendString()
127 void Log::MessageBuilder::AppendFormatString(const char* format, ...) {  in AppendFormatString()
133     DCHECK_NE(log_->format_buffer_[i], '\0');  in AppendFormatString()
134     AppendCharacter(log_->format_buffer_[i]);  in AppendFormatString()
138 void Log::MessageBuilder::AppendCharacter(char c) {  in AppendCharacter()
153     // Escape non-printable characters.  in AppendCharacter()
158 void Log::MessageBuilder::AppendSymbolName(Symbol* symbol) {  in AppendSymbolName()
160   OFStream& os = log_->os_;  in AppendSymbolName()
162   if (!symbol->name()->IsUndefined()) {  in AppendSymbolName()
164     AppendSymbolNameDetails(String::cast(symbol->name()), false);  in AppendSymbolName()
167   os << "hash " << std::hex << symbol->Hash() << std::dec << ")";  in AppendSymbolName()
170 void Log::MessageBuilder::AppendSymbolNameDetails(String* str,  in AppendSymbolNameDetails()
175   OFStream& os = log_->os_;  in AppendSymbolNameDetails()
176   int limit = str->length();  in AppendSymbolNameDetails()
179     os << (str->IsOneByteRepresentation() ? 'a' : '2');  in AppendSymbolNameDetails()
182     os << ':' << str->length() << ':';  in AppendSymbolNameDetails()
187 int Log::MessageBuilder::FormatStringIntoBuffer(const char* format,  in FormatStringIntoBuffer()
189   Vector<char> buf(log_->format_buffer_, Log::kMessageBufferSize);  in FormatStringIntoBuffer()
191   // |length| is -1 if output was truncated.  in FormatStringIntoBuffer()
192   if (length == -1) length = Log::kMessageBufferSize;  in FormatStringIntoBuffer()
193   DCHECK_LE(length, Log::kMessageBufferSize);  in FormatStringIntoBuffer()
198 void Log::MessageBuilder::AppendRawFormatString(const char* format, ...) {  in AppendRawFormatString()
204     DCHECK_NE(log_->format_buffer_[i], '\0');  in AppendRawFormatString()
205     AppendRawCharacter(log_->format_buffer_[i]);  in AppendRawFormatString()
209 void Log::MessageBuilder::AppendRawCharacter(char c) { log_->os_ << c; }  in AppendRawCharacter()
211 void Log::MessageBuilder::WriteToLogFile() { log_->os_ << std::endl; }  in WriteToLogFile()
214 Log::MessageBuilder& Log::MessageBuilder::operator<<<const char*>(
216   this->AppendString(string);
221 Log::MessageBuilder& Log::MessageBuilder::operator<<<void*>(void* pointer) {
222   OFStream& os = log_->os_;
230 Log::MessageBuilder& Log::MessageBuilder::operator<<<char>(char c) {
231   this->AppendCharacter(c);
236 Log::MessageBuilder& Log::MessageBuilder::operator<<<String*>(String* string) {
237   this->AppendString(string);
242 Log::MessageBuilder& Log::MessageBuilder::operator<<<Symbol*>(Symbol* symbol) {
243   this->AppendSymbolName(symbol);
248 Log::MessageBuilder& Log::MessageBuilder::operator<<<Name*>(Name* name) {
249   if (name->IsString()) {
250     this->AppendString(String::cast(name));
252     this->AppendSymbolName(Symbol::cast(name));
258 Log::MessageBuilder& Log::MessageBuilder::operator<<<LogSeparator>(
261   this->AppendRawCharacter(',');