If a IO system call (e.g. read) returns -1 and error is EINTER, how should we...
If a IO system call (e.g. read) returns -1 and error is EINTER, how should we interpret this? And give 1-2 lines of code to show how to handle that error.
Homework Answers
Some system calls report EINTR error code if a signal occured
while the system call is in progress. Actually there is no error.
The issue is
system is not able to resume the system call due to that signal.So
it is better that we should stop the system call if such a thing
happens. Following is the sample code to take care of that.
int c = write(fd, &buf, sizeof(v));
if (c == -1 && errno != EINTR) {
perror("Error in writing");
exit(EXIT_FAILURE);
}
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