Upgrade to V8 3.4
Merge 3.4.14.35
Simple merge required updates to makefiles only.
Bug: 568872
Change-Id: I403a38452c547e06fcfa951c12eca12a1bc40978
diff --git a/src/log-utils.cc b/src/log-utils.cc
index 1bba7cd..2d1ce23 100644
--- a/src/log-utils.cc
+++ b/src/log-utils.cc
@@ -33,101 +33,14 @@
namespace v8 {
namespace internal {
-#ifdef ENABLE_LOGGING_AND_PROFILING
-LogDynamicBuffer::LogDynamicBuffer(
- int block_size, int max_size, const char* seal, int seal_size)
- : block_size_(block_size),
- max_size_(max_size - (max_size % block_size_)),
- seal_(seal),
- seal_size_(seal_size),
- blocks_(max_size_ / block_size_ + 1),
- write_pos_(0), block_index_(0), block_write_pos_(0), is_sealed_(false) {
- ASSERT(BlocksCount() > 0);
- AllocateBlock(0);
- for (int i = 1; i < BlocksCount(); ++i) {
- blocks_[i] = NULL;
- }
-}
+const char* Log::kLogToTemporaryFile = "&";
-LogDynamicBuffer::~LogDynamicBuffer() {
- for (int i = 0; i < BlocksCount(); ++i) {
- DeleteArray(blocks_[i]);
- }
-}
-
-
-int LogDynamicBuffer::Read(int from_pos, char* dest_buf, int buf_size) {
- if (buf_size == 0) return 0;
- int read_pos = from_pos;
- int block_read_index = BlockIndex(from_pos);
- int block_read_pos = PosInBlock(from_pos);
- int dest_buf_pos = 0;
- // Read until dest_buf is filled, or write_pos_ encountered.
- while (read_pos < write_pos_ && dest_buf_pos < buf_size) {
- const int read_size = Min(write_pos_ - read_pos,
- Min(buf_size - dest_buf_pos, block_size_ - block_read_pos));
- memcpy(dest_buf + dest_buf_pos,
- blocks_[block_read_index] + block_read_pos, read_size);
- block_read_pos += read_size;
- dest_buf_pos += read_size;
- read_pos += read_size;
- if (block_read_pos == block_size_) {
- block_read_pos = 0;
- ++block_read_index;
- }
- }
- return dest_buf_pos;
-}
-
-
-int LogDynamicBuffer::Seal() {
- WriteInternal(seal_, seal_size_);
- is_sealed_ = true;
- return 0;
-}
-
-
-int LogDynamicBuffer::Write(const char* data, int data_size) {
- if (is_sealed_) {
- return 0;
- }
- if ((write_pos_ + data_size) <= (max_size_ - seal_size_)) {
- return WriteInternal(data, data_size);
- } else {
- return Seal();
- }
-}
-
-
-int LogDynamicBuffer::WriteInternal(const char* data, int data_size) {
- int data_pos = 0;
- while (data_pos < data_size) {
- const int write_size =
- Min(data_size - data_pos, block_size_ - block_write_pos_);
- memcpy(blocks_[block_index_] + block_write_pos_, data + data_pos,
- write_size);
- block_write_pos_ += write_size;
- data_pos += write_size;
- if (block_write_pos_ == block_size_) {
- block_write_pos_ = 0;
- AllocateBlock(++block_index_);
- }
- }
- write_pos_ += data_size;
- return data_size;
-}
-
-// Must be the same message as in Logger::PauseProfiler.
-const char* const Log::kDynamicBufferSeal = "profiler,\"pause\"\n";
-
Log::Log(Logger* logger)
- : write_to_file_(false),
- is_stopped_(false),
+ : is_stopped_(false),
output_handle_(NULL),
ll_output_handle_(NULL),
- output_buffer_(NULL),
mutex_(NULL),
message_buffer_(NULL),
logger_(logger) {
@@ -142,7 +55,6 @@
void Log::Initialize() {
-#ifdef ENABLE_LOGGING_AND_PROFILING
mutex_ = OS::CreateMutex();
message_buffer_ = NewArray<char>(kMessageBufferSize);
@@ -166,19 +78,19 @@
FLAG_prof_auto = false;
}
- bool start_logging = FLAG_log || FLAG_log_runtime || FLAG_log_api
+ bool open_log_file = FLAG_log || FLAG_log_runtime || FLAG_log_api
|| FLAG_log_code || FLAG_log_gc || FLAG_log_handles || FLAG_log_suspect
|| FLAG_log_regexp || FLAG_log_state_changes || FLAG_ll_prof;
- bool open_log_file = start_logging || FLAG_prof_lazy;
-
// If we're logging anything, we need to open the log file.
if (open_log_file) {
if (strcmp(FLAG_logfile, "-") == 0) {
OpenStdout();
} else if (strcmp(FLAG_logfile, "*") == 0) {
- OpenMemoryBuffer();
- } else {
+ // Does nothing for now. Will be removed.
+ } else if (strcmp(FLAG_logfile, kLogToTemporaryFile) == 0) {
+ OpenTemporaryFile();
+ } else {
if (strchr(FLAG_logfile, '%') != NULL ||
!Isolate::Current()->IsDefaultIsolate()) {
// If there's a '%' in the log file name we have to expand
@@ -222,14 +134,18 @@
}
}
}
-#endif
}
void Log::OpenStdout() {
ASSERT(!IsEnabled());
output_handle_ = stdout;
- write_to_file_ = true;
+}
+
+
+void Log::OpenTemporaryFile() {
+ ASSERT(!IsEnabled());
+ output_handle_ = i::OS::OpenTemporaryFile();
}
@@ -244,7 +160,6 @@
void Log::OpenFile(const char* name) {
ASSERT(!IsEnabled());
output_handle_ = OS::FOpen(name, OS::LogFileOpenMode);
- write_to_file_ = true;
if (FLAG_ll_prof) {
// Open the low-level log file.
size_t len = strlen(name);
@@ -257,25 +172,18 @@
}
-void Log::OpenMemoryBuffer() {
- ASSERT(!IsEnabled());
- output_buffer_ = new LogDynamicBuffer(
- kDynamicBufferBlockSize, kMaxDynamicBufferSize,
- kDynamicBufferSeal, StrLength(kDynamicBufferSeal));
- write_to_file_ = false;
-}
-
-
-void Log::Close() {
- if (write_to_file_) {
- if (output_handle_ != NULL) fclose(output_handle_);
- output_handle_ = NULL;
- if (ll_output_handle_ != NULL) fclose(ll_output_handle_);
- ll_output_handle_ = NULL;
- } else {
- delete output_buffer_;
- output_buffer_ = NULL;
+FILE* Log::Close() {
+ FILE* result = NULL;
+ if (output_handle_ != NULL) {
+ if (strcmp(FLAG_logfile, kLogToTemporaryFile) != 0) {
+ fclose(output_handle_);
+ } else {
+ result = output_handle_;
+ }
}
+ output_handle_ = NULL;
+ if (ll_output_handle_ != NULL) fclose(ll_output_handle_);
+ ll_output_handle_ = NULL;
DeleteArray(message_buffer_);
message_buffer_ = NULL;
@@ -284,27 +192,7 @@
mutex_ = NULL;
is_stopped_ = false;
-}
-
-
-int Log::GetLogLines(int from_pos, char* dest_buf, int max_size) {
- if (write_to_file_) return 0;
- ASSERT(output_buffer_ != NULL);
- ASSERT(from_pos >= 0);
- ASSERT(max_size >= 0);
- int actual_size = output_buffer_->Read(from_pos, dest_buf, max_size);
- ASSERT(actual_size <= max_size);
- if (actual_size == 0) return 0;
-
- // Find previous log line boundary.
- char* end_pos = dest_buf + actual_size - 1;
- while (end_pos >= dest_buf && *end_pos != '\n') --end_pos;
- actual_size = static_cast<int>(end_pos - dest_buf + 1);
- // If the assertion below is hit, it means that there was no line end
- // found --- something wrong has happened.
- ASSERT(actual_size > 0);
- ASSERT(actual_size <= max_size);
- return actual_size;
+ return result;
}
@@ -413,9 +301,7 @@
void LogMessageBuilder::WriteToLogFile() {
ASSERT(pos_ <= Log::kMessageBufferSize);
- const int written = log_->write_to_file_ ?
- log_->WriteToFile(log_->message_buffer_, pos_) :
- log_->WriteToMemory(log_->message_buffer_, pos_);
+ const int written = log_->WriteToFile(log_->message_buffer_, pos_);
if (written != pos_) {
log_->stop();
log_->logger_->LogFailure();
@@ -423,6 +309,4 @@
}
-#endif // ENABLE_LOGGING_AND_PROFILING
-
} } // namespace v8::internal