millisecond delay in C - linux

[Macgyver]

Hi all,

does anyone know how to generate a millisecond delay in C, compiling
under Linux? I understand the function sleep() will generate a delay
down to a resolution of one second, but I need to be able to refine
this to milliseconds.

Any ideas?

Thanks in advance,

Ben.

 

[Robert Frunzke]

checkout the select() call - it is often used for such a purpose. or
nanosleep().

 

[Joona I Palaste]

checkout the select() call - it is often used for such a purpose. or
nanosleep().

Which part of the ISO C standard defines either of these functions?

 

[Robert Frunzke]

Which part of the ISO C standard defines either of these functions?

Not the ISO C standard. Maybe Posix?

 

[Alex]

does anyone know how to generate a millisecond delay in C, compiling
under Linux? I understand the function sleep() will generate a
delay down to a resolution of one second, but I need to be able to
refine this to milliseconds.

There is no way to do so in standard C, the topic of this newsgroup. The
function sleep() is also not part of standard C. The clue is the fact that
the operating system is relevant.

Try asking in comp.unix.programmer <OT> or man 2 nanosleep </OT>.

Note that you seem to be asking for a way to achieve your solution ("How do
I use a sledgehammer to crack a walnut?"), not for a solution to your
problem ("How do I crack a walnut?"). This may well mean you don't get the
best end result.

 

[Robert Frunzke]

Note that you seem to be asking for a way to achieve your solution ("How do
I use a sledgehammer to crack a walnut?"), not for a solution to your
problem ("How do I crack a walnut?"). This may well mean you don't get the
best end result.

He doesnt want to use a sledgehammer (sleep), he wants a finer and
tinyer one (nanosleep)


just kidding,
robert

 

[Floyd Davidson]

Hi all,

does anyone know how to generate a millisecond delay in C, compiling
under Linux? I understand the function sleep() will generate a delay
down to a resolution of one second, but I need to be able to refine
this to milliseconds.

Any ideas?

Take the advice about asking in a different newsgroup, because
there is *far* more to this than meets the eye.

In fact, you shouldn't ask in comp.unix.programming because the
discussion you need is specific to Linux, not unix in general,
though they won't throw a hissy fit about it like you get here.

Try comp.os.linux.misc or better might be
comp.os.linux.development.apps.

 

[Flash Gordon]

Not the ISO C standard. Maybe Posix?

That was Joonas point. This group is about ISO C, the Posix, Unix and
Linux experts hang out in other groups where answers involving these
functions will get properly reviewed for errors.

 

[August Derleth]

Not the ISO C standard. Maybe Posix?

1. POSIX isn't C. POSIX is an OS thing that has hooks originally
designed for C.

2. If it isn't ISO C, it's off-topic here. Try comp.programming.unix or
some such.