nanosecond timer

[dhouston]

Is it possible to call clock_nanosleep() from PB and, if possible, can someone more adept at C than me provide an example.

http://www.kernel.org/doc/man-pages/onl ... eep.2.html

[RE-A]

This is also something on my to do list, thanks for the reminder. PB doesn't recognise this api so the only option is to create a library

[dhouston]

That's well outside my skillset so any help will be greatly appreciated.

[Anonymous]

first step.

don't work , but this is the good way.

Code: Select all

#CLOCK_REALTIME            = 0
#CLOCK_MONOTONIC           = 1
#CLOCK_PROCESS_CPUTIME_ID  = 2
#CLOCK_THREAD_CPUTIME_ID   = 3
#CLOCK_REALTIME_HR         = 4
#CLOCK_MONOTONIC_HR        = 5


Structure timespec 
    tv_sec.i;        /* seconds */
    tv_nsec.i;           /* nanoseconds [0 .. 999999999] */
EndStructure           


ImportC "-lrt"
clock_nanosleep(clockid.i,b.i,c.i,d.i)
EndImport


clock_nanosleep(#CLOCK_MONOTONIC,0,0,0)

[dhouston]

apifunctions.txt in the compilers directory lists nanosleep - perhaps it might be recognized.

• http://www.kernel.org/doc/man-pages/onl ... eep.2.html

[walker]

at least to have a working example :

Code: Select all

;Clock-ID's = Type of clock to use
#CLOCK_REALTIME            = 0
#CLOCK_MONOTONIC           = 1
#CLOCK_PROCESS_CPUTIME_ID  = 2
#CLOCK_THREAD_CPUTIME_ID   = 3
#CLOCK_REALTIME_HR         = 4
#CLOCK_MONOTONIC_HR        = 5

;Flags
#TIMER_ABSTIME=1; if used, the remain variable could be set to #NULL

Structure timespec
    tv_sec.i;           /* seconds */
    tv_nsec.i;         /* nanoseconds [0 .. 999999999] */
EndStructure           

; see  http://www.kernel.org/doc/man-pages/online/pages/man2/clock_nanosleep.2.html
ImportC "-lrt"
clock_nanosleep(clockid.i,flags.i,requested.i,remain.i)
EndImport

time.timespec ; requested nanosleep
rem.timespec; remaining time if interrupted

time\tv_sec=10
time\tv_nsec=666

error=clock_nanosleep(#CLOCK_MONOTONIC,0,@time,@rem) 
If error<>0
    ;interupted by signal or error occured
    Debug error
EndIf

[dhouston]

at least to have a working example :

Thank you.

[walker]

you're welcome
removed a typo in the example ...