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// my_aio_read.c
// from https://github.com/imyjf/apue/blob/master/my_aio_read.c
// and I guess originally from APUE but it isn't in my second
// edition (and I didn't keep the first edition)
#include <unistd.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <stdio.h>
#include <stdlib.h>
#include <aio.h>
#include <strings.h>
#include <errno.h>
#define ERR_EXIT(msg) do { perror(msg); exit(1); } while(0)
int main() {
int ret;
char buf[64];
struct aiocb my_aiocb;
bzero((char*)&my_aiocb, sizeof(struct aiocb));
my_aiocb.aio_buf = buf;
my_aiocb.aio_fildes = STDIN_FILENO;
my_aiocb.aio_nbytes = 64;
my_aiocb.aio_offset = 0;
ret = aio_read(&my_aiocb);
if (ret < 0) {
ERR_EXIT("aio_read");
}
while (aio_error(&my_aiocb) == EINPROGRESS) {
//write(STDOUT_FILENO, ".", 1);
sleep(1);
}
ret = aio_return(&my_aiocb);
if (ret < 0) {
ERR_EXIT("aio_return");
}
buf[ret] = '\0';
printf("content: %s\n", buf);
return 0;
}
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