void option_case(char *name, int opt)
{
t_data e;
char **buf;
if (opt != 2 && opt != 1)
put_usage_error("./fdf");
open_check(name);
buf = get_data(name);
e.opt = opt;
if (opt == 1)
{
e.para = 0;
e.iso = 1;
}
if (opt == 2)
{
e.para = 1;
e.iso = 0;
}
e.y_max = nb_lines(buf);
e.x_max = nb_points(buf, e.y_max);
e.data = read_map(buf, e.x_max, e.y_max);
e.cal_data = NULL;
init_t_m(&e);
create_img(&e);
free_tab(&e);
}
static void rec_file(int msgid, int msglisten, const char *filename, const char *newfile, int wrflag) {
int status = sta_chk, ret;
struct msg_st msg;
pid_t pid;
pid = getpid();
msg.msg_pthd = (pthread_t)0; /*避免信号来时，误传给server一个不存在的线程号*/
while (!stop)
switch (status) {
case sta_chk:
if ((msg_fp = open_check(msgid, msglisten, filename, newfile, wrflag, &msg)) == NULL) {
status = sta_err;
} else {
status = sta_rd;
}
break;
case sta_err:
fprintf(stderr, "check file %s failed: %s\n", filename, msg.content);
status = sta_ter;
break;
case sta_ter:
stop = 1;
break;
case sta_rd:
if (msgrcv(msgid, &msg, sizeof(msg) - sizeof(long), pid, 0) < 0){
status = sta_err;
} else if (msg.msg_len == 0) {
status = sta_ter;
} else {
status = sta_wr;
}
break;
case sta_wr:
if ((ret = write_data(&msg, msg_fp)) == 0) {
status = sta_rd;
} else {
fprintf(stderr, "fwrite to %s failed, error code: %d\n ", newfile, ret);
status = sta_ter;
}
break;
default:
status = sta_ter;
break;
}
if (msg_fp != NULL) fclose(msg_fp);
if (msg.msg_pthd != (pthread_t)0) {
msg.mtype = STP;
msg.msg_identify = pid;
while (msgsnd(msglisten, &msg, sizeof(msg) - sizeof(long), 0) < 0)
if (errno != EINTR) break;
}
return;
}
int main(int argc, char **argv)
{
int fd;
char *p;
char buf[256];
signal(SIGUSR1, sighandler);
fd = open_check(argv[1], O_RDWR, 0644);
p = mmap_check((void *)0x700000000000, 0x202*PS, PROTECTION,
MAP_SHARED, fd, 0);
buf[0] = p[0];
buf[1] = p[PS];
buf[2] = p[PS*0x10];
buf[3] = p[PS*0x11];
buf[4] = p[PS*0x200];
buf[5] = p[PS*0x201];
pause();
return 0;
}
int main (int argc, char **argv) {
int ret = 0;
int fd;
char *filename;
char rbuf[PS];
if (argc != 2) {
printf("Usage: %s filename\n", argv[0]);
exit(EXIT_FAILURE);
}
filename = argv[1];
signal(SIGUSR1, sighandler);
fd = open_check(filename, O_RDWR, 0);
pause();
if (pread(fd, rbuf, PS, 0) < 0) {
perror("read");
ret = 1;
}
close_check(fd);
return ret;
}
int main(int argc, char *argv[]) {
int fd;
int sem;
int nrpages = 1;
int ret = 0;
int tmp = 0;
int offset = 0;
char c;
char *filename;
char *actype;
char *onerror;
char *p;
pid_t pid;
int wait_status;
uint64_t pflag;
struct sembuf sembuf;
struct pagestat pgstat;
if (argc != 5) {
printf("Usage: %s filename nrpages accesstype onerror\n", argv[0]);
exit(EXIT_FAILURE);
}
filename = argv[1];
nrpages = strtol(argv[2], NULL, 10);
actype = argv[3];
onerror = argv[4];
DEB("filename = %s, nrpages = %d, actype = %s, onerror = %s\n",
filename, nrpages, actype, onerror);
if (strcmp(onerror, "onerror") == 0)
offset = 0;
else
offset = PS;
sem = create_and_init_semaphore();
fd = open_check(filename, O_RDWR, 0);
tmp = pread(fd, rbuf, nrpages*PS, 0);
DEB("parent first read %d [%c,%c]\n", tmp, rbuf[0], rbuf[PS]);
get_semaphore(sem, &sembuf);
if ((pid = fork()) == 0) {
get_semaphore(sem, &sembuf); /* wait parent to dirty page */
p = mmap_check((void *)REFADDR, nrpages * PS,
PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (p != (void *)REFADDR)
err("mmap");
if (nrpages == 1) {
DEB("child read (after dirty) [%c]\n", p[0]);
#ifdef DEBUG
get_pagestat(p, &pgstat);
#endif
} else {
DEB("child read (after dirty) [%c,%c]\n", p[0], p[PS]);
#ifdef DEBUG
get_pagestat(p, &pgstat);
get_pagestat(p+PS, &pgstat);
#endif
}
DEB("child hwpoison to vaddr %p\n", p);
madvise(&p[0], PS, 100); /* hwpoison */
put_semaphore(sem, &sembuf);
get_semaphore(sem, &sembuf);
DEB("child terminated\n");
put_semaphore(sem, &sembuf);
get_pflags(pgstat.pfn, &pflag, 1);
exit(EXIT_SUCCESS);
} else {
DEB("parent dirty\n");
usleep(1000);
memset(wbuf, 49, nrpages * PS);
pwrite(fd, wbuf, nrpages * PS, 0);
tmp = pread(fd, rbuf, nrpages * PS, 0);
DEB("parent second read (after dirty) %d [%c,%c]\n",
tmp, rbuf[0], rbuf[PS]);
put_semaphore(sem, &sembuf); /* kick child to inject error */
get_semaphore(sem, &sembuf); /* pagecache should be hwpoison */
DEB("parent check\n");
if (strcmp(actype, "read") == 0) {
tmp = pread(fd, rbuf, PS, offset);
if (tmp < 0)
DEB("parent first read failed.\n");
tmp = pread(fd, rbuf, PS, offset);
DEB("parent read after hwpoison %d [%c,%c]\n",
tmp, rbuf[0], rbuf[PS]);
if (tmp < 0) {
ret = -1;
perror("read");
} else {
ret = 0;
}
} else if (strcmp(actype, "writefull") == 0) {
memset(wbuf, 50, nrpages * PS);
tmp = pwrite(fd, wbuf, PS, offset);
tmp = pwrite(fd, wbuf, PS, offset);
DEB("parent write after hwpoison %d\n", tmp);
if (tmp < 0) {
ret = -1;
perror("writefull");
} else {
ret = 0;
}
} else if (strcmp(actype, "writepart") == 0) {
memset(wbuf, 50, nrpages * PS);
tmp = pwrite(fd, wbuf, PS / 2, offset);
tmp = pwrite(fd, wbuf, PS / 2, offset);
DEB("parent write after hwpoison %d\n", tmp);
if (tmp < 0) {
ret = -1;
perror("writefull");
} else {
ret = 0;
}
} else if (strcmp(actype, "fsync") == 0) {
ret = fsync(fd);
ret = fsync(fd);
DEB("parent fsync after hwpoison [ret %d]\n", ret);
if (ret)
perror("fsync");
} else if (strcmp(actype, "sync_range_write") == 0) {
ret = sync_file_range(fd, offset, PS, SYNC_FILE_RANGE_WRITE);
ret = sync_file_range(fd, offset, PS, SYNC_FILE_RANGE_WRITE);
if (ret)
perror("sync_range_write");
} else if (strcmp(actype, "sync_range_wait") == 0) {
ret = sync_file_range(fd, offset, PS, SYNC_FILE_RANGE_WAIT_BEFORE);
ret = sync_file_range(fd, offset, PS, SYNC_FILE_RANGE_WAIT_BEFORE);
if (ret)
perror("sync_range_wait");
} else if (strcmp(actype, "mmapread") == 0) {
/*
* If mmap access failed, this program should be
* terminated by segmentation fault with non-zero
* returned value. So we don't set ret here.
*/
p = mmap_check((void *)REFADDR, nrpages * PS,
PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (p != (void *)REFADDR)
err("mmap");
c = p[offset];
DEB("parent mmap() read after hwpoison [%c]\n", p[offset]);
} else if (strcmp(actype, "mmapwrite") == 0) {
p = mmap_check((void *)REFADDR, nrpages * PS,
PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
if (p != (void *)REFADDR)
err("mmap");
memset(&p[offset], 50, PS);
DEB("parent mmap() write after hwpoison [%c]\n", p[offset]);
}
}
put_semaphore(sem, &sembuf);
waitpid(pid, &wait_status, 0);
if (!WIFEXITED(wait_status))
err("waitpid");
delete_semaphore(sem);
DEB("parent exit %d.\n", ret);
return ret;
}
