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LLE10123 : Posix error 4: Interrupted system call


You get the error message: Interrupted system call




This error can occur when programming in C/C++ or even from a bash shell. What happens is that a system call is interrupted. This is most of the time due to a siginterrupt fuction. (default behaviour on BSD)

The siginterrupt() function (defined in #include <signal.h> supports programs written to historical system interfaces. A conforming application, when being written or rewritten, should use sigaction() with the SA_RESTART flag instead of siginterrupt().


int siginterrupt(int sig, int flag);

Depending on the flag, the system call will be restarted or not.


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