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Asked: 2026-05-13T11:18:40+00:00

How can I lock a file for a specified period of time (10 seconds)

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How can I lock a file for a specified period of time (10 seconds) using the C language in Ubuntu Linux ?

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1 Answer

  1. Editorial Team

    It works like this:

    #include <io.h>
#include <sys/file.h>
...
int f = open ("filename", O_RDONLY);
if (f < 0)
       error();
if (flock (f, LOCK_EX))
       error();
sleep (10);

if (flock (f, LOCK_UN))
       error();
...
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