Bug #1219

Process is not interrupted by ctrl-c with long usleep in while(!gShouldStop)

Added by Giulio Moro almost 9 years ago. Updated almost 8 years ago.

Status:ClosedStart date:2015-05-12
Priority:LowDue date:
Assignee:-% Done:

0%

Category:-
Target version:-

Description

When there is a while(!gShouldStop) containing a usleep(>1000000) the program cannot be terminated with a ctrl-c.
Try to place this code in PRU::loop()
before while (!gShouldStop):

while(!gShouldStop){
        printf("new buffer\ndac adc\n");
        for(unsigned int n = 0; n<digital_buffer_frames; n++){
            for(unsigned int n=0; n<digital_buffer_frames ; n++){
                printf("%3d ",digitalBuffer0[n]);
                printf("%3d ",digitalBuffer1[n]);
                printf("%3d    ",digitalBuffer1[n+MEM_DIGITAL_BUFFER1_OFFSET/sizeof(uint32_t)]);
                if((n&7)==7)
                    printf("\n");
            }
            printf("\n");
            usleep(1000000);
        }
    }

Run the program and press ctrl-c. The program will not die and you need to use
pkill BeagleRT
to terminate it

History

#1 Updated by Giulio Moro over 8 years ago

This occasionally happens with usleep times as small as 10000us!

#2 Updated by Giulio Moro almost 8 years ago

Must be because of the timeout in main:

 79     while(!gShouldStop) {
 80         usleep(100000);
 81     }

#3 Updated by Giulio Moro almost 8 years ago

  • Status changed from New to Closed

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