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#include <sys/types.h>
#include <sys/wait.h>
#include <unistd.h>
#include <signal.h>
#include "aio_setup.h"
#include <sys/mman.h>
#define SIZE 768*1024*1024
//just submit an I/O
int test_child(void)
{
char *buf;
int rwfd;
int res;
long size;
struct iocb iocb;
struct iocb *iocbs[] = { &iocb };
int loop = 10;
int i;
aio_setup(1024);
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("child: submit: io_submit res=%d [%s]\n", res,
strerror(-res));
_exit(1);
}
}
res = ftruncate(rwfd, 0); assert(res == 0);
_exit(0);
}
/* from 12.t */
int test_main(void)
{
int res, status;
pid_t pid;
sigset_t set;
if (attempt_io_submit(io_ctx, 0, NULL, 0))
return 1;
sigemptyset(&set);
sigaddset(&set, SIGCHLD);
sigprocmask(SIG_BLOCK, &set, NULL);
fflush(NULL);
pid = fork(); assert(pid != -1);
if (pid == 0)
test_child();
res = waitpid(pid, &status, 0);
if (WIFEXITED(status)) {
int failed = (WEXITSTATUS(status) != 0);
printf("child exited with status %d%s\n", WEXITSTATUS(status),
failed ? " -- FAILED" : "");
return failed;
}
/* anything else: failed */
if (WIFSIGNALED(status))
printf("child killed by signal %d -- FAILED.\n",
WTERMSIG(status));
return 1;
}
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