#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <fcntl.h>
#include <libaio.h>

#define BUF_SIZE (64*1024)
static char *buf, *buf2;

int main( int argc, char **argv )
{
	io_context_t ctxp = NULL;
	struct iocb iocb, iocb2;
	struct iocb *iocbs[] = { &iocb, &iocb2 };
	struct io_event event[2];
	int fd1, fd2;
	struct timespec ts;
	int result;

	if( io_setup( 1024, &ctxp ) ) {
		perror( "io_setup" );
		return -1;
	}
	fd1 = open( "/tmp/foo", O_RDWR|O_DIRECT );
	//fd1 = open( "/tmp/aiodev", O_RDONLY );
	fd2 = open( "/tmp/too", O_RDWR|O_DIRECT );
	if( fd1<0 || fd2<0 ) {
		perror("open");
		return -2;
	}
	posix_memalign( (void**)&buf, 512, BUF_SIZE );
	posix_memalign( (void**)&buf2, 512, BUF_SIZE );
	io_prep_pread( &iocb,  fd1, buf, BUF_SIZE, 0 );
	io_prep_pread( &iocb2, fd2, buf2, BUF_SIZE, 0 );
	io_submit( ctxp, 2, iocbs );
	// ... do something else ...
	ts.tv_sec = 5;
	ts.tv_nsec= 0;
	result = io_getevents( ctxp, 2, 2, &event[0], &ts );
	printf("result= %d | result= %ld/%ld res2= %ld/%ld\n", result,
		event[0].res, event[0].res2,
		event[1].res, event[1].res2);
	//printf("Inhalt von buf: %s\n", buf ); // Test mit "asynctest"
	io_destroy( ctxp );
	return 0;
}