Pelles C > Bug reports

Possible thread bug?

(1/2) > >>

John Z:
This program uses thrd_sleep under 9.00.9 and 10.00.6.  have I made a mistake?
Used C11 and multihread.lib, no optimize, level 2 , console program. Tried C17, and multithread dll too.

--- Code: ---#include <threads.h>
#include <time.h>
#include <stdio.h>

int main(void)
{
    printf("Time: %s", ctime(&(time_t){time(NULL)}));
    thrd_sleep(&(struct timespec){.tv_sec=15}, NULL); // sleep 15 sec
    printf("Time: %s", ctime(&(time_t){time(NULL)}));
}
--- End code ---
The clock should show 15 seconds difference but it appears thrd_sleep does not sleep.
Actually time.h is included in threads.h so that is redundant - but not a problem....

Any thoughts?

John Z

Update: I found and tried _nanosleep instead, it DOES work but the time is limited in total to less than 100,000,001 nanoseconds, even though there is a sec input. If set sec to 1 then an error results.

Update2: Well …. it seems thrd_sleep seems to have the same .1 second limitation ???  Why do the structures have tv_sec and tv_nsec if only 100 million nanosecs are allowed?  Docs for thrd_sleep and web resources don't mention .1 sec limitation.

TimoVJL:
In Windows 7

--- Code: ---#include <threads.h>
//#include <time.h>
#include <stdio.h>
 
int main(void)
{
    printf("Time: %s", ctime(&(time_t){time(NULL)}));
    thrd_sleep(&(struct timespec){.tv_sec=15}, NULL); // sleep x sec
    printf("Time: %s", ctime(&(time_t){time(NULL)}));
return 0;
}

--- End code ---

--- Code: ---Time: Sun Dec 13 19:32:08 2020
Time: Sun Dec 13 19:32:23 2020
Press any key to continue...
--- End code ---

Stefan Pendl:
Output of Timo's code on Windows 10 with Pelles 10:

--- Code: ---Time: Sun Dec 13 20:07:33 2020
Time: Sun Dec 13 20:07:48 2020
Press any key to continue...

--- End code ---

John Z:
OK - you guys messing with me?  :)

Here is what I get -
Time: Sun Dec 13 14:03:30 2020
Time: Sun Dec 13 14:03:30 2020
Press any key to continue...

Windows 10 - Pelles 9.00.9 although also on version 10 (which I'll retry - different computer)
I even used your posted code and pasted into a new project....  :'(

I have something corrupted?

I'll do the reboot but I do that every day  :)

if you have a moment could you test this minor mod?

--- Code: ---#include <threads.h>
//#include <time.h>
#include <stdio.h>
 
int main(void)
{ int ans;
    printf("Time: %s", ctime(&(time_t){time(NULL)}));
    ans = thrd_sleep(&(struct timespec){.tv_sec=15}, NULL); // sleep x sec
if (ans < 0)
{ puts("error returned");}
    printf("Time: %s", ctime(&(time_t){time(NULL)}));
return 0;
}
--- End code ---

I get an error with .tv_sec > .1 as in:
Time: Sun Dec 13 14:15:25 2020
error returned
Time: Sun Dec 13 14:15:25 2020
Press any key to continue...


Thanks for the help,
John Z

argggg - Worked fine on Windows 10 with Pelles 10.00.6 this time

Thank you all, need to see what is going on with this laptop ;( spent several hours trying to
figure out a code issue that's not a code issue......at least it is the weekend.

Stefan Pendl:
I created a 64-bit project, since I am running a 64-bit system.
Is there any difference, if the project is a 32-bit one?
Might be a problem with mixing 32-bit and 64-bit, system and application.

Navigation

[0] Message Index

[#] Next page