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/*
* Copyright (C) 2011 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include "logging.h"
#include "runtime.h"
#include "thread.h"
#include "utils.h"
namespace art {
LogVerbosity gLogVerbosity;
static Mutex& GetLoggingLock() {
static Mutex logging_lock("LogMessage lock");
return logging_lock;
}
LogMessage::~LogMessage() {
// Finish constructing the message.
if (data_->error != -1) {
data_->buffer << ": " << strerror(data_->error);
}
std::string msg(data_->buffer.str());
// Do the actual logging with the lock held.
{
MutexLock mu(GetLoggingLock());
if (msg.find('\n') == std::string::npos) {
LogLine(msg.c_str());
} else {
msg += '\n';
size_t i = 0;
while (i < msg.size()) {
size_t nl = msg.find('\n', i);
msg[nl] = '\0';
LogLine(&msg[i]);
i = nl + 1;
}
}
}
// Abort if necessary.
if (data_->severity == FATAL) {
Runtime::Abort(data_->file, data_->line_number);
}
delete data_;
}
std::ostream& LogMessage::stream() {
return data_->buffer;
}
HexDump::HexDump(const void* address, size_t byte_count, bool show_actual_addresses)
: address_(address), byte_count_(byte_count), show_actual_addresses_(show_actual_addresses) {
}
void HexDump::Dump(std::ostream& os) const {
if (byte_count_ == 0) {
return;
}
static const char gHexDigit[] = "0123456789abcdef";
const unsigned char* addr = reinterpret_cast<const unsigned char*>(address_);
char out[76]; /* exact fit */
unsigned int offset; /* offset to show while printing */
if (show_actual_addresses_) {
offset = reinterpret_cast<int>(addr);
} else {
offset = 0;
}
memset(out, ' ', sizeof(out)-1);
out[8] = ':';
out[sizeof(out)-1] = '\0';
size_t byte_count = byte_count_;
int gap = static_cast<int>(offset & 0x0f);
while (byte_count) {
unsigned int lineOffset = offset & ~0x0f;
char* hex = out;
char* asc = out + 59;
for (int i = 0; i < 8; i++) {
*hex++ = gHexDigit[lineOffset >> 28];
lineOffset <<= 4;
}
hex++;
hex++;
int count = std::min(static_cast<int>(byte_count), 16 - gap);
CHECK_NE(count, 0);
CHECK_LE(count + gap, 16);
if (gap) {
/* only on first line */
hex += gap * 3;
asc += gap;
}
int i;
for (i = gap ; i < count+gap; i++) {
*hex++ = gHexDigit[*addr >> 4];
*hex++ = gHexDigit[*addr & 0x0f];
hex++;
if (*addr >= 0x20 && *addr < 0x7f /*isprint(*addr)*/) {
*asc++ = *addr;
} else {
*asc++ = '.';
}
addr++;
}
for (; i < 16; i++) {
/* erase extra stuff; only happens on last line */
*hex++ = ' ';
*hex++ = ' ';
hex++;
*asc++ = ' ';
}
os << out;
gap = 0;
byte_count -= count;
offset += count;
}
}
std::ostream& operator<<(std::ostream& os, const HexDump& rhs) {
rhs.Dump(os);
return os;
}
} // namespace art
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