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C++ の FireBreath で構築され た NPAPI プラグインを使用してログ メッセージを出力する方法。
ログは、開発中およびテスト中、および/またはデバッグ ビルドで利用できる必要があります。

変更:

ログを記録する FireBreath の方法はLog4cplusを使用しており、これらの手順にできる限り厳密に実装しようとしました。「PluginConfig.cmake」の
末尾に追加しました。add_firebreath_library(log4cplus)

Windows 8 で読み取ることができるログ ファイルをまだ作成できていません。次のような他のリソースを参照しました。

これまでのところ、私のロギング試行はすべて次のとおりです。

#include "logging.h"
...
FBLOG_INFO("my function name", "and some text");

オプションのデバッグ レベル:

getLogLevel()のデフォルトレベルに満足しているため、オーバーライドする必要があるかどうかはわかりません。また、オーバーライドする場合、どこに置くべきINFOか正確にはわかりません。

FB::Log::LogLevel getLogLevel(){
    return FB::Log::LogLevel_Trace; // Now Trace and above is logged.
}

ログ ファイルのパス:

Windowsでログファイルを書き込むための適切なパスについても不明です。私が試してみました：

- outMethods.push_back(std::make_pair(FB::Log::LogMethod_File, "C:/logs/XXXX/yyyy.log"));
- outMethods.push_back(std::make_pair(FB::Log::LogMethod_File, "C:\logs\XXXX\yyyy.log"));
- outMethods.push_back(std::make_pair(FB::Log::LogMethod_File, "/logs/XXXX/yyyy.log"));
etc.

準備スクリプト エラー:

"PluginConfig.cmake" でLog4cplusを有効にした後、Windows のスクリプトでadd_firebreath_library(log4cplus)"not found" エラーが発生しますが、それ以外の場合はスクリプトは正常に完了したように見え、プラグインはエラーなしでビルドされるため、これまでのところこれらを無視することにしました。prepエラー。しかし、ここにそれらがあります：

注: パスの一部を「XXXXX」に置き換えます。

Z:\XXXXX\firebreath>firebreath-dev\prep2010.cmd projects fbbuildwin
A subdirectory or file fbbuildwin already exists.
Using projects in: "Z:\XXXXX\firebreath\projects"
Generating build files in: "Z:\XXXXX\firebreath\fbbuildwin"
NOTE: The build files in "Z:\XXXXX\firebreath\fbbuildwin" should *NEVER* be modified directly.
When needed, make project changes in cmake files and re-run this script.
  Project-specific cmake files are found in [plugin dir]\CMakeLists.txt and
  [plugin dir]\Win\projectDef.cmake.
Note that parameters for cmake should be enclosed in double quotes, e.g. "-DVERBOSE=1"
CMAKE parameters:
Z:\XXXXX\firebreath\fbbuildwin>cmake -G "Visual Studio 10" -DFB_PROJECTS_DIR="Z:\dmanpearl On My Mac\pixelmonks\LaasTech\firebreath\projects"  "Z:\XXXXX\firebreath\firebreath-dev"
-- Balanced size/speed optimization project dir: Z:/XXXXX/firebreath/projects
-- Looking for include file pthread.h
-- Looking for include file pthread.h - not found
-- Found Threads: TRUE
-- Threads:
-- Looking for include file dlfcn.h
-- Looking for include file dlfcn.h - not found
-- Looking for include file errno.h
-- Looking for include file errno.h - found
-- Looking for include file iconv.h
-- Looking for include file iconv.h - not found
-- Looking for include file limits.h
-- Looking for include file limits.h - found
-- Looking for include file sys/types.h
-- Looking for include file sys/types.h - found
-- Looking for include file sys/socket.h
-- Looking for include file sys/socket.h - not found
-- Looking for include file sys/syscall.h
-- Looking for include file sys/syscall.h - not found
-- Looking for include file sys/time.h
-- Looking for include file sys/time.h - not found
-- Looking for include file sys/timeb.h
-- Looking for include file sys/timeb.h - found
-- Looking for include file sys/stat.h
-- Looking for include file sys/stat.h - found
-- Looking for include file sys/file.h
-- Looking for include file sys/file.h - not found
-- Looking for include file syslog.h
-- Looking for include file syslog.h - not found
-- Looking for include file arpa/inet.h
-- Looking for include file arpa/inet.h - not found
-- Looking for include file netinet/in.h
-- Looking for include file netinet/in.h - not found
-- Looking for include file netinet/tcp.h
-- Looking for include file netinet/tcp.h - not found
-- Looking for include file netdb.h
-- Looking for include file netdb.h - not found
-- Looking for include file unistd.h
-- Looking for include file unistd.h - not found
-- Looking for include file fcntl.h
-- Looking for include file fcntl.h - found
-- Looking for include file stdio.h
-- Looking for include file stdio.h - found
-- Looking for include file stdarg.h
-- Looking for include file stdarg.h - found
-- Looking for include file stdlib.h
-- Looking for include file stdlib.h - found
-- Looking for include file time.h
-- Looking for include file time.h - found
-- Looking for include file wchar.h
-- Looking for include file wchar.h - found
-- Looking for include file inttypes.h
-- Looking for include file inttypes.h - not found
-- Looking for include file memory.h
-- Looking for include file memory.h - found
-- Looking for include file stdint.h
-- Looking for include file stdint.h - found
-- Looking for include file strings.h
-- Looking for include file strings.h - not found
-- Looking for include file string.h
-- Looking for include file string.h - found
-- Looking for 5 include files stdlib.h, ..., float.h
-- Looking for 5 include files stdlib.h, ..., float.h - found
-- Looking for gmtime_r
-- Looking for gmtime_r - not found
-- Looking for localtime_r
-- Looking for localtime_r - not found
-- Looking for gettimeofday
-- Looking for gettimeofday - not found
-- Looking for getpid
-- Looking for getpid - found
-- Looking for ftime
-- Looking for ftime - found
-- Looking for stat
-- Looking for stat - found
-- Looking for lstat
-- Looking for lstat - not found
-- Looking for fcntl
-- Looking for fcntl - not found
-- Looking for lockf
-- Looking for lockf - not found
-- Looking for flock
-- Looking for flock - not found
-- Looking for htons
-- Looking for htons - not found
-- Looking for ntohs
-- Looking for ntohs - not found
-- Looking for htonl
-- Looking for htonl - not found
-- Looking for ntohl
-- Looking for ntohl - not found
-- Looking for vsnprintf
-- Looking for vsnprintf - found
-- Looking for _vsnprintf
-- Looking for _vsnprintf - found
-- Looking for vsprintf_s
-- Looking for vsprintf_s - found
-- Looking for vswprintf_s
-- Looking for vswprintf_s - found
-- Looking for vfprintf_s
-- Looking for vfprintf_s - found
-- Looking for vfwprintf_s
-- Looking for vfwprintf_s - found
-- Looking for _vsnprintf_s
-- Looking for _vsnprintf_s - found
-- Looking for _vsnwprintf_s
-- Looking for _vsnwprintf_s - found
-- Looking for mbstowcs
-- Looking for mbstowcs - found
-- Looking for wcstombs
-- Looking for wcstombs - found
-- Looking for ENAMETOOLONG
-- Looking for ENAMETOOLONG - found
-- Looking for SYS_gettid
-- Looking for SYS_gettid - not found
-- Looking for __FUNCTION__
-- Looking for __FUNCTION__ - found
-- Looking for __PRETTY_FUNCTION__
-- Looking for __PRETTY_FUNCTION__ - not found
-- Looking for __func__
-- Looking for __func__ - not found
-- Performing Test LOG4CPLUS_HAVE___SYNC_ADD_AND_FETCH
-- Performing Test LOG4CPLUS_HAVE___SYNC_ADD_AND_FETCH - Failed
-- Performing Test LOG4CPLUS_HAVE___SYNC_SUB_AND_FETCH
-- Performing Test LOG4CPLUS_HAVE___SYNC_SUB_AND_FETCH - Failed
-- Performing Test LOG4CPLUS_HAVE_GNU_VARIADIC_MACROS
-- Performing Test LOG4CPLUS_HAVE_GNU_VARIADIC_MACROS - Failed
-- Performing Test LOG4CPLUS_HAVE_C99_VARIADIC_MACROS
-- Performing Test LOG4CPLUS_HAVE_C99_VARIADIC_MACROS - Success
-- Looking for clock_gettime
-- Looking for clock_gettime - not found
-- Looking for clock_nanosleep
-- Looking for clock_nanosleep - not found
-- Looking for nanosleep
-- Looking for nanosleep - not found
-- Looking for gethostbyname_r
-- Looking for gethostbyname_r - not found
-- Looking for getaddrinfo
-- Looking for getaddrinfo - not found
-- Performing Test HAVE_ATTRIBUTE_VISIBILITY
-- Performing Test HAVE_ATTRIBUTE_VISIBILITY - Failed
-- Performing Test HAVE_DECLSPEC_DLLEXPORT
-- Performing Test HAVE_DECLSPEC_DLLEXPORT - Success
-- Performing Test HAVE_CXX11_THREAD_LOCAL
-- Performing Test HAVE_CXX11_THREAD_LOCAL - Failed
-- Performing Test HAVE_GCC_THREAD_EXTENSION
-- Performing Test HAVE_GCC_THREAD_EXTENSION - Failed
-- Performing Test HAVE_DECLSPEC_THREAD
-- Performing Test HAVE_DECLSPEC_THREAD - Success
-- Performing Test LOG4CPLUS_HAVE_CXX11_ATOMICS
-- Performing Test LOG4CPLUS_HAVE_CXX11_ATOMICS - Failed
-- Looking for sys/types.h
-- Looking for sys/types.h - found
-- Looking for stddef.h
-- Looking for stddef.h - found
-- Check size of socklen_t
-- Check size of socklen_t - failed
Adding library log4cplus
Generating plugin configuration files in Z:/XXXXX/firebreath/fbbuildwin/projects/LaasTech/gen
-- Configuring done
-- Generating done
-- Build files have been written to: Z:/XXXXX/firebreath/fbbuildwin

私の環境：

現在、Mac と Windows (Mountain Lion と Windows 8) でプラグインを構築しています。

次のブラウザでテストしています。

  1. Mac: サファリ & クローム。
  2. Windows: IE 10 および Chrome。

FWIW: 開発用の私の Win インストールは、Mac VMWare Fusion v5.0 ゲストにあります。

まとめ：

アクセス可能なログ ファイルを使用して、プラグインで Log4cplus を動作させるのを手伝ってください。

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1 に答える 1

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正しい方向に進んでいるように見えますが、非常に重要な部分が欠けています。C:\logs に書き込むことはできません。管理者だけがその権限を持っているからです。

「見つかりません」「エラー」に関しては、それらはエラーではありません...単なるステータスメッセージです。これは log4cplus の構築の一部であり、プラットフォームがサポートするものを確認します。それらは安全に無視できます。

ヒントとコツのページを見ると、役立つ例がいくつか見つかります。

私が言及している主なものは、私が以前に作成した要点から来ています。add_boost_library(filesystem) が必要になりますが、このコードを使用して、ログを配置する有効な場所を見つけることができます。コードは現在、ログ パス (%AppData%\LocalLow\CompanyName\logs にあります) かどうかを検出します。このコード) が存在し、存在する場合にのみログを書き込みます。また、タイムスタンプとプロセス ID を使用して、プラグイン インスタンスの一意性を保証します。

#include <boost/filesystem.hpp>
#include "SystemHelpers.h"
using namespace boost::filesystem;

/// ...


void getLoggingMethods( FB::Log::LogMethodList& outMethods )
{
    path appDataPath = FB::System::getLocalAppDataPath("CompanyName");

    path logDirPath = appDataPath / "logs";
    if (exists(logDirPath) && is_directory(logDirPath)) {
        std::stringstream ss;
        time_t seconds = time(NULL);
        boost::thread::id threadId = boost::this_thread::get_id();
        ss << seconds << "_" << threadId << ".log";

        path logPath = logDirPath / ss.str();

        fprintf(stderr, "logging to %s", logPath.string().c_str());
        outMethods.push_back(std::make_pair(FB::Log::LogMethod_File, logPath.string()));
    }
#ifndef NDEBUG
    outMethods.push_back(std::make_pair(FB::Log::LogMethod_Console, std::string()));
#endif
}


// ...
于 2013-04-02T03:37:52.383 に答える