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#include "aio_setup.h"
#include <sys/mman.h>
#define SIZE 768*1024*1024
//just submit an I/O
int test_main(void)
{
char *buf;
int rwfd;
int res;
long size;
struct iocb iocb;
struct iocb *iocbs[] = { &iocb };
int loop = 10;
int i;
size = SIZE;
printf("size = %ld\n", size);
rwfd = open("testdir/rwfile", O_RDWR); assert(rwfd !=
-1);
res = ftruncate(rwfd, 0); assert(res == 0);
buf = malloc(size); assert(buf !=
NULL);
for(i=0;i<loop;i++) {
switch(i%2) {
case 0:
io_prep_pwrite(&iocb, rwfd, buf, size, 0);
break;
case 1:
io_prep_pread(&iocb, rwfd, buf, size, 0);
}
res = io_submit(io_ctx, 1, iocbs);
if (res != 1) {
printf("submit: io_submit res=%d [%s]\n", res,
strerror(-res));
return res;
}
}
res = ftruncate(rwfd, 0); assert(res == 0);
exit(0);
}
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