timerep.h

著名的 helix realplayer 基于手机 symbian 系统的 播放器全套源代码

/* ***** BEGIN LICENSE BLOCK ***** 
 * Version: RCSL 1.0/RPSL 1.0 
 *  
 * Portions Copyright (c) 1995-2002 RealNetworks, Inc. All Rights Reserved. 
 *      
 * The contents of this file, and the files included with this file, are 
 * subject to the current version of the RealNetworks Public Source License 
 * Version 1.0 (the "RPSL") available at 
 * http://www.helixcommunity.org/content/rpsl unless you have licensed 
 * the file under the RealNetworks Community Source License Version 1.0 
 * (the "RCSL") available at http://www.helixcommunity.org/content/rcsl, 
 * in which case the RCSL will apply. You may also obtain the license terms 
 * directly from RealNetworks.  You may not use this file except in 
 * compliance with the RPSL or, if you have a valid RCSL with RealNetworks 
 * applicable to this file, the RCSL.  Please see the applicable RPSL or 
 * RCSL for the rights, obligations and limitations governing use of the 
 * contents of the file.  
 *  
 * This file is part of the Helix DNA Technology. RealNetworks is the 
 * developer of the Original Code and owns the copyrights in the portions 
 * it created. 
 *  
 * This file, and the files included with this file, is distributed and made 
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 * EXPRESS OR IMPLIED, AND REALNETWORKS HEREBY DISCLAIMS ALL SUCH WARRANTIES, 
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 * FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 
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 * Technology Compatibility Kit Test Suite(s) Location: 
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 * ***** END LICENSE BLOCK ***** */ 

/*
 * UTCTimeRep holds a UTC timestamp in internal (time_t) representation.  It
 * can convert to/from RFC-1123, RFC-850, ANSI 'asctime', and UTC strings.
 *
 * Dates prior to 1970 are not supported because (1) time_t is unsigned on
 * some systems, and (2) time_t is frequently cast to UINT32 in Helix code.
 *
 * Dates after 2037 are not supported because time_t is usually signed.
 */

#include "hlxclib/time.h"

#ifndef _UTCTimeRep_H_
#define _UTCTimeRep_H_

#ifdef _WIN16
size_t strftime16(char* pDest, size_t nDestLen, const char* pFormat, const struct tm* ptm);
#endif /* _WIN16 */

#define MAX_UTC_TIME_LEN 80

#define INVALID_TIME_T (time_t)(-1)

class UTCTimeRep
{
public:
    UTCTimeRep(void);                       // Create from current time
    UTCTimeRep(const char* pStr);           // Create from string
    UTCTimeRep(time_t t, BOOL bUTC=TRUE);   // Create from time_t value
    ~UTCTimeRep(void);

    const char* asRFC1123String(void);
    const char* asRFC850String(void);
    const char* asUTCString(void);
    time_t      asUTCTimeT(void);

    void SetLocalTime(time_t t);
    void SetUTCTime(time_t t);
    void SetTime(const char* pStr);

private:
    int fromTime(time_t t);             // Set from time_t in localtime
    int fromUTCTime(time_t t);          // Set from time_t in GMT
    int fromTm(struct tm* ptm);         // Set from struct tm in localtime
    int fromUTCTm(struct tm* ptm);      // Set from struct tm in GMT
    int fromString(const char* pStr);   // Set from RFC1123/RFC850/asctime/UTC

    //XXXTDM: we could remove this if asXXXString() took input strings
    char        m_szTime[MAX_UTC_TIME_LEN+1]; /* Flawfinder: ignore */
    time_t      m_tTime;
};

#endif