michael@0: // Copyright (c) 2007, Google Inc.
michael@0: // All rights reserved.
michael@0: //
michael@0: // Redistribution and use in source and binary forms, with or without
michael@0: // modification, are permitted provided that the following conditions are
michael@0: // met:
michael@0: //
michael@0: //     * Redistributions of source code must retain the above copyright
michael@0: // notice, this list of conditions and the following disclaimer.
michael@0: //     * Redistributions in binary form must reproduce the above
michael@0: // copyright notice, this list of conditions and the following disclaimer
michael@0: // in the documentation and/or other materials provided with the
michael@0: // distribution.
michael@0: //     * Neither the name of Google Inc. nor the names of its
michael@0: // contributors may be used to endorse or promote products derived from
michael@0: // this software without specific prior written permission.
michael@0: //
michael@0: // THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
michael@0: // "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
michael@0: // LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
michael@0: // A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
michael@0: // OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
michael@0: // SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
michael@0: // LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
michael@0: // DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
michael@0: // THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
michael@0: // (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
michael@0: // OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
michael@0: 
michael@0: // logging.cc: Breakpad logging
michael@0: //
michael@0: // See logging.h for documentation.
michael@0: //
michael@0: // Author: Mark Mentovai
michael@0: 
michael@0: #include <assert.h>
michael@0: #include <errno.h>
michael@0: #include <stdio.h>
michael@0: #include <string.h>
michael@0: #include <time.h>
michael@0: 
michael@0: #include <string>
michael@0: 
michael@0: #include "common/using_std_string.h"
michael@0: #include "common/logging.h"
michael@0: #include "common/pathname_stripper.h"
michael@0: 
michael@0: #ifdef _WIN32
michael@0: #define snprintf _snprintf
michael@0: #endif
michael@0: 
michael@0: #ifdef __ANDROID__
michael@0: # include <android/log.h>
michael@0: #endif
michael@0: 
michael@0: namespace google_breakpad {
michael@0: 
michael@0: LogStream::LogStream(std::ostream &stream, Severity severity,
michael@0:                      const char *file, int line)
michael@0:     : stream_(stream) {
michael@0:   time_t clock;
michael@0:   time(&clock);
michael@0:   struct tm tm_struct;
michael@0: #ifdef _WIN32
michael@0:   localtime_s(&tm_struct, &clock);
michael@0: #else
michael@0:   localtime_r(&clock, &tm_struct);
michael@0: #endif
michael@0:   char time_string[20];
michael@0:   strftime(time_string, sizeof(time_string), "%Y-%m-%d %H:%M:%S", &tm_struct);
michael@0: 
michael@0:   const char *severity_string = "UNKNOWN_SEVERITY";
michael@0:   switch (severity) {
michael@0:     case SEVERITY_INFO:
michael@0:       severity_string = "INFO";
michael@0:       break;
michael@0:     case SEVERITY_ERROR:
michael@0:       severity_string = "ERROR";
michael@0:       break;
michael@0:   }
michael@0: 
michael@0:   str_ << time_string << ": " << PathnameStripper::File(file) << ":" <<
michael@0:           line << ": " << severity_string << ": ";
michael@0: }
michael@0: 
michael@0: LogStream::~LogStream() {
michael@0: #ifdef __ANDROID__
michael@0:   __android_log_print(ANDROID_LOG_ERROR,
michael@0:                       "Profiler", "%s", str_.str().c_str());
michael@0: #else
michael@0:   stream_ << str_.str();
michael@0:   stream_ << std::endl;
michael@0: #endif
michael@0: }
michael@0: 
michael@0: string HexString(uint32_t number) {
michael@0:   char buffer[11];
michael@0:   snprintf(buffer, sizeof(buffer), "0x%x", number);
michael@0:   return string(buffer);
michael@0: }
michael@0: 
michael@0: string HexString(uint64_t number) {
michael@0:   char buffer[19];
michael@0:   snprintf(buffer, sizeof(buffer), "0x%" PRIx64, number);
michael@0:   return string(buffer);
michael@0: }
michael@0: 
michael@0: string HexString(int number) {
michael@0:   char buffer[19];
michael@0:   snprintf(buffer, sizeof(buffer), "0x%x", number);
michael@0:   return string(buffer);
michael@0: }
michael@0: 
michael@0: int ErrnoString(string *error_string) {
michael@0:   assert(error_string);
michael@0: 
michael@0:   // strerror isn't necessarily thread-safe.  strerror_r would be preferrable,
michael@0:   // but GNU libc uses a nonstandard strerror_r by default, which returns a
michael@0:   // char* (rather than an int success indicator) and doesn't necessarily
michael@0:   // use the supplied buffer.
michael@0:   error_string->assign(strerror(errno));
michael@0:   return errno;
michael@0: }
michael@0: 
michael@0: }  // namespace google_breakpad
michael@0: 
michael@0: bool is_power_of_2(uint64_t x_in)
michael@0: {
michael@0:   uint64_t x = x_in;
michael@0:   x = x | (x >> 1);
michael@0:   x = x | (x >> 2);
michael@0:   x = x | (x >> 4);
michael@0:   x = x | (x >> 8);
michael@0:   x = x | (x >> 16);
michael@0:   x = x | (x >> 32);
michael@0:   x = x - (x >> 1);
michael@0:   // x has now been rounded down to the nearest power of 2 <= x_in.
michael@0:   return x == x_in;
michael@0: }