microsleep.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 
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#ifndef _MICROSLEEP_H_
#define _MICROSLEEP_H_

#if defined _HPUX || defined _AIX
#include <sys/time.h>
#endif
#include <time.h>

#ifdef _UNIX
#include <unistd.h>
#endif

#ifdef _WINDOWS
#include <windows.h>
#endif

#ifdef _BEOS	// for snooze()
#include <OS.h>
#endif

#ifdef _SYMBIAN
#include <e32std.h>
#endif

#if defined (_OSF1) && defined (_NATIVE_COMPILER) 
#include <sys/types.h>
int usleep(useconds_t useconds);
#endif

inline void
microsleep(unsigned int uSecs)
{
#if defined _HPUX || defined _SOLARIS
    struct timespec interval, remainder;

    // sleep for 1 micro-second or 1000 nano-seconds
    interval.tv_sec = 0;
    interval.tv_nsec = uSecs * 1000;
#endif

#ifdef _AIX
    struct timestruc_t interval, remainder;
    interval.tv_sec = 0;
    interval.tv_nsec = uSecs * 1000;
    nsleep(&interval, &remainder);
#elif defined _SOLARIS
    nanosleep(&interval, &remainder);
#elif defined _WIN32 
    Sleep(uSecs / 1000);
#elif defined _OSF1 || defined _HPUX
    usleep((useconds_t)uSecs);
#elif defined _MACINTOSH
    AbsoluteTime timeToWakeUp = AddDurationToAbsolute( uSecs * kDurationMicrosecond, UpTime() );
    MPDelayUntil(&timeToWakeUp);
#elif defined _BEOS
    snooze(uSecs);
#elif defined _SYMBIAN
    User::After(uSecs);
#else
    usleep(uSecs);
#endif
}

#endif