test_logrotate.cpp
上传用户:yhdzpy8989
上传日期:2007-06-13
资源大小:13604k
文件大小:5k
- /*
- * ===========================================================================
- * PRODUCTION $Log: test_logrotate.cpp,v $
- * PRODUCTION Revision 1000.1 2004/06/01 19:42:45 gouriano
- * PRODUCTION PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.3
- * PRODUCTION
- * ===========================================================================
- */
- /* $Id: test_logrotate.cpp,v 1000.1 2004/06/01 19:42:45 gouriano Exp $
- * ===========================================================================
- *
- * PUBLIC DOMAIN NOTICE
- * National Center for Biotechnology Information
- *
- * This software/database is a "United States Government Work" under the
- * terms of the United States Copyright Act. It was written as part of
- * the author's official duties as a United States Government employee and
- * thus cannot be copyrighted. This software/database is freely available
- * to the public for use. The National Library of Medicine and the U.S.
- * Government have not placed any restriction on its use or reproduction.
- *
- * Although all reasonable efforts have been taken to ensure the accuracy
- * and reliability of the software and data, the NLM and the U.S.
- * Government do not and cannot warrant the performance or results that
- * may be obtained by using this software or data. The NLM and the U.S.
- * Government disclaim all warranties, express or implied, including
- * warranties of performance, merchantability or fitness for any particular
- * purpose.
- *
- * Please cite the author in any work or product based on this material.
- *
- * ===========================================================================
- *
- * Author: Aaron Ucko, NCBI
- *
- * File Description:
- * Test for log rotation
- *
- */
- #include <ncbi_pch.hpp>
- #include <corelib/ncbiapp.hpp>
- #include <corelib/ncbienv.hpp>
- #include <corelib/ncbiargs.hpp>
- #include <corelib/ncbi_system.hpp>
- #include <util/logrotate.hpp>
- #include <stdlib.h>
- #ifdef NCBI_OS_UNIX
- # include <signal.h>
- # include <unistd.h>
- #endif
- #include <test/test_assert.h> // must be last
- USING_NCBI_SCOPE;
- /////////////////////////////////////////////////////////////////////////////
- // CTestLogrotateApplication::
- // defined here so SIGHUP can kick it
- static auto_ptr<CRotatingLogStream> s_LogStream;
- #ifdef NCBI_OS_UNIX
- static volatile int s_Signal = 0;
- extern "C" {
- static void s_SignalHandler(int signum)
- {
- s_Signal = signum;
- }
- }
- #endif
- class CTestLogrotateApplication : public CNcbiApplication
- {
- virtual void Init(void);
- virtual int Run(void);
- virtual void Exit(void);
- };
- void CTestLogrotateApplication::Init(void)
- {
- auto_ptr<CArgDescriptions> arg_desc(new CArgDescriptions);
- arg_desc->SetUsageContext(GetArguments().GetProgramBasename(),
- "Test of log rotation");
- arg_desc->AddDefaultKey
- ("limit", "N",
- "Approximate maximum length between rotations, in bytes",
- CArgDescriptions::eInteger, "16384");
- SetupArgDescriptions(arg_desc.release());
- }
- static unsigned int s_Rand(unsigned int limit)
- {
- return (rand() >> 5) % limit;
- }
- int CTestLogrotateApplication::Run(void)
- {
- CArgs args = GetArgs();
- string me = GetArguments().GetProgramBasename();
- s_LogStream.reset(new CRotatingLogStream(me + ".log",
- args["limit"].AsInteger()));
- SetDiagStream(s_LogStream.get());
- // enable verbose diagnostics for best effect
- SetDiagPostLevel(eDiag_Info);
- SetDiagTrace(eDT_Enable);
- SetDiagPostFlag(eDPF_All);
- #ifdef NCBI_OS_UNIX
- {{
- struct sigaction sa;
- memset(&sa, 0, sizeof(sa));
- sa.sa_handler = s_SignalHandler;
- sa.sa_flags = SA_RESTART;
- sigaction(SIGHUP, &sa, 0);
- }}
- me += '/' + NStr::IntToString(getpid());
- #endif
- SetDiagPostPrefix(me.c_str());
- srand(time(0));
- for (unsigned int n = 0; n < 1000000; ++n) {
- static const char* messages[] = { "foo", "bar", "baz", "quux" };
- EDiagSev severity = (EDiagSev)(s_Rand(eDiag_Fatal));
- ErrCode errcode(rand(), rand());
- const char* message = messages[s_Rand(4)];
- CNcbiDiag(__FILE__, __LINE__, severity) << errcode << message << Endm;
- SleepMilliSec(s_Rand(256));
- #ifdef NCBI_OS_UNIX
- if (s_Signal) {
- LOG_POST("Received signal " << s_Signal << "; rotating logs");
- s_LogStream->Rotate();
- LOG_POST("Done rotating logs");
- }
- s_Signal = 0;
- #endif
- }
-
- return 0;
- }
- /////////////////////////////////////////////////////////////////////////////
- // Cleanup
- void CTestLogrotateApplication::Exit(void)
- {
- SetDiagStream(0);
- }
- /////////////////////////////////////////////////////////////////////////////
- // MAIN
- int main(int argc, const char* argv[])
- {
- // Execute main application function
- return CTestLogrotateApplication().AppMain(argc, argv, 0, eDS_Default, 0);
- }
- /*
- * ===========================================================================
- * $Log: test_logrotate.cpp,v $
- * Revision 1000.1 2004/06/01 19:42:45 gouriano
- * PRODUCTION: UPGRADED [GCC34_MSVC7] Dev-tree R1.3
- *
- * Revision 1.3 2004/05/17 21:09:26 gorelenk
- * Added include of PCH ncbi_pch.hpp
- *
- * Revision 1.2 2002/12/30 20:56:18 ucko
- * Bound the main loop to avoid "statement is unreachable" warnings.
- *
- * Revision 1.1 2002/11/25 17:21:01 ucko
- * Add support for automatic log rotation (CRotatingLogStream)
- *
- *
- * ===========================================================================
- */