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// Copyright (c) 2005, Google Inc.
// All rights reserved.
//
// Redistribution and use in source and binary forms, with or without
// modification, are permitted provided that the following conditions are
// met:
//
// * Redistributions of source code must retain the above copyright
// notice, this list of conditions and the following disclaimer.
// * Redistributions in binary form must reproduce the above
// copyright notice, this list of conditions and the following disclaimer
// in the documentation and/or other materials provided with the
// distribution.
// * Neither the name of Google Inc. nor the names of its
// contributors may be used to endorse or promote products derived from
// this software without specific prior written permission.
//
// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
// ---
// Sanjay Ghemawat <opensource@google.com>
#include <config.h>
#include <stdio.h>
#include <stdarg.h>
#ifdef HAVE_UNISTD_H
#include <unistd.h> // for write()
#endif
#include <string.h>
#include <google/malloc_extension.h>
#include "internal_logging.h"
static const int kLogBufSize = 800;
void TCMalloc_MESSAGE(const char* filename,
int line_number,
const char* format, ...) {
char buf[kLogBufSize];
const int n = snprintf(buf, sizeof(buf), "%s:%d] ", filename, line_number);
if (n < kLogBufSize) {
va_list ap;
va_start(ap, format);
vsnprintf(buf + n, kLogBufSize - n, format, ap);
va_end(ap);
}
write(STDERR_FILENO, buf, strlen(buf));
}
static const int kStatsBufferSize = 16 << 10;
static char stats_buffer[kStatsBufferSize] = { 0 };
static void TCMalloc_CRASH_internal(bool dump_stats,
const char* filename,
int line_number,
const char* format, va_list ap) {
char buf[kLogBufSize];
const int n = snprintf(buf, sizeof(buf), "%s:%d] ", filename, line_number);
if (n < kLogBufSize) {
vsnprintf(buf + n, kLogBufSize - n, format, ap);
}
write(STDERR_FILENO, buf, strlen(buf));
if (dump_stats) {
MallocExtension::instance()->GetStats(stats_buffer, kStatsBufferSize);
write(STDERR_FILENO, stats_buffer, strlen(stats_buffer));
}
abort();
}
void TCMalloc_CRASH(bool dump_stats,
const char* filename,
int line_number,
const char* format, ...) {
va_list ap;
va_start(ap, format);
TCMalloc_CRASH_internal(dump_stats, filename, line_number, format, ap);
va_end(ap);
}
void TCMalloc_CrashReporter::PrintfAndDie(const char* format, ...) {
va_list ap;
va_start(ap, format);
TCMalloc_CRASH_internal(dump_stats_, file_, line_, format, ap);
va_end(ap);
}
void TCMalloc_Printer::printf(const char* format, ...) {
if (left_ > 0) {
va_list ap;
va_start(ap, format);
const int r = vsnprintf(buf_, left_, format, ap);
va_end(ap);
if (r < 0) {
// Perhaps an old glibc that returns -1 on truncation?
left_ = 0;
} else if (r > left_) {
// Truncation
left_ = 0;
} else {
left_ -= r;
buf_ += r;
}
}
}
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