I'm trying to use libevent for reading data from stdin, and my callback
is being called over and over, even though i'm only sending a couple of
bytes to stdin.
Here's the jist of it:
Main:
event_init();
event_set(&ev, 0 /*stdin*/, EV_READ | EV_PERSIST, read_stdin, NULL);
event_add(&ev, NULL);
event_dispatch();
void read_stdin(int fd, short flags, void *data)
{
int b;
b = read(fd, buffer, 0);
fprintf(stderr, "Read %d bytes from %d:", b, fd);
fprintf(stderr, "'%.*s' ", b, buffer);
return;
}
Now if i do:
mkfifo fifo
./prog < fifo
and then in another shell:
echo -n "12345" > fifo
i see:
Read 5 bytes from 0:'12345' Read 0 bytes from 0:'' Read 0 bytes from
0:'' Read 0 bytes from 0:'' ...
And the callback keeps firing forever, even tho I'm not sending any more
data. I can't find anything in the docs about having to acknowledge
events or dismiss them once fired or anything - what am i missing?
Thanks,
RJ
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