Squashed 'third_party/gperftools/' content from commit 54505f1
Change-Id: Id02e833828732b0efe7dac722b8485279e67c5fa
git-subtree-dir: third_party/gperftools
git-subtree-split: 54505f1d50c2d1f4676f5e87090b64a117fd980e
diff --git a/src/base/logging.cc b/src/base/logging.cc
new file mode 100644
index 0000000..761c2fd
--- /dev/null
+++ b/src/base/logging.cc
@@ -0,0 +1,108 @@
+// -*- Mode: C++; c-basic-offset: 2; indent-tabs-mode: nil -*-
+// Copyright (c) 2007, 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.
+
+// ---
+// This file just provides storage for FLAGS_verbose.
+
+#include <config.h>
+#include "base/logging.h"
+#include "base/commandlineflags.h"
+
+DEFINE_int32(verbose, EnvToInt("PERFTOOLS_VERBOSE", 0),
+ "Set to numbers >0 for more verbose output, or <0 for less. "
+ "--verbose == -4 means we log fatal errors only.");
+
+
+#if defined(_WIN32) || defined(__CYGWIN__) || defined(__CYGWIN32__)
+
+// While windows does have a POSIX-compatible API
+// (_open/_write/_close), it acquires memory. Using this lower-level
+// windows API is the closest we can get to being "raw".
+RawFD RawOpenForWriting(const char* filename) {
+ // CreateFile allocates memory if file_name isn't absolute, so if
+ // that ever becomes a problem then we ought to compute the absolute
+ // path on its behalf (perhaps the ntdll/kernel function isn't aware
+ // of the working directory?)
+ RawFD fd = CreateFileA(filename, GENERIC_WRITE, 0, NULL,
+ CREATE_ALWAYS, 0, NULL);
+ if (fd != kIllegalRawFD && GetLastError() == ERROR_ALREADY_EXISTS)
+ SetEndOfFile(fd); // truncate the existing file
+ return fd;
+}
+
+void RawWrite(RawFD handle, const char* buf, size_t len) {
+ while (len > 0) {
+ DWORD wrote;
+ BOOL ok = WriteFile(handle, buf, len, &wrote, NULL);
+ // We do not use an asynchronous file handle, so ok==false means an error
+ if (!ok) break;
+ buf += wrote;
+ len -= wrote;
+ }
+}
+
+void RawClose(RawFD handle) {
+ CloseHandle(handle);
+}
+
+#else // _WIN32 || __CYGWIN__ || __CYGWIN32__
+
+#ifdef HAVE_SYS_TYPES_H
+#include <sys/types.h>
+#endif
+#ifdef HAVE_UNISTD_H
+#include <unistd.h>
+#endif
+#ifdef HAVE_FCNTL_H
+#include <fcntl.h>
+#endif
+
+// Re-run fn until it doesn't cause EINTR.
+#define NO_INTR(fn) do {} while ((fn) < 0 && errno == EINTR)
+
+RawFD RawOpenForWriting(const char* filename) {
+ return open(filename, O_WRONLY|O_CREAT|O_TRUNC, 0664);
+}
+
+void RawWrite(RawFD fd, const char* buf, size_t len) {
+ while (len > 0) {
+ ssize_t r;
+ NO_INTR(r = write(fd, buf, len));
+ if (r <= 0) break;
+ buf += r;
+ len -= r;
+ }
+}
+
+void RawClose(RawFD fd) {
+ NO_INTR(close(fd));
+}
+
+#endif // _WIN32 || __CYGWIN__ || __CYGWIN32__