sleep in milliseconds.

This is a discussion on sleep in milliseconds. within the Linux Programming forums, part of the Platform Specific Boards category; Hi, Iam working on a project in LINUX and i require my program to go into sleep for 100ms or ...

  1. #1
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    sleep in milliseconds.

    Hi,
    Iam working on a project in LINUX and i require my program to go into sleep for 100ms or 200ms but sleep() takes only seconds as argumuments. Is there a way?? If there are no inbulit functions is there a way to count in milliseconds??Plz help.
    Also can u tell me wat C functions are used in writing data to the USB ports of linux machines?? Thx in advance.

    Sam.

  2. #2
    and the hat of wrongness Salem's Avatar
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    Well for sleep, you could try nanosleep()
    But beware that all sleep functions are a minimum sleep time, not an absolute sleep time.

    As for USB, perhaps here
    http://www.lvr.com/usb.htm
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    #define WORLD "sad place" LinuxCoder's Avatar
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    check the manpage for select() which is used a lot for sockets. it reads:
    Some code calls select() with all three sets empty, n zero, and a non-null timeout as a fairly portable way to sleep with subsecond precision.
    So i guess this might be one way to achieve what you're looking for.

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    Besides nanosleep and select there is also usleep().

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