What are the other timer APIs in Linux apart from POSIX timers?

I want to design a timer in Linux, but due to some system constraints and design requirements i cannot use the POSIX timer APIs.

Can somebody kindly let me know, what 开发者_如何学运维are the other timer design mechanisms available in Linux apart from the POSIX timers? (timer_create, timer_settime etc to avoid)

Thanks in advance.

EDIT: P.S: Any mechanism you provide, requesting you to kindly give me some useful links or example links

NOTE: We can't use any third party library (Like ACE library) as our code is a proprietory code.

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Check out my answer. One of the timers I find useful is timerfd_create() API provided in Linux system call. This blends well when your application is structured on an event loop.

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If you are looking for 3rd party, there is an ACE library that can be downloaded for free. They have timers, queues, threads etc

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The simplest and most portable way is probably just to use pthread_create and clock_nanosleep to implement your own timer. It shouldn't take more than about 50 lines of code for something simple, and maybe 100-150 for a fully general API with overrun counts, etc.