int s_receive_file(char **path, int socket)
{
int ret;
char buff[1024];
int size;
ft_bzero(buff, 1023);
if ((ret = recv(socket, buff, 1023, 0)) == 0)
return (0);
if (!(ft_strcmp(buff, "file") == 0))
return (0);
ft_bzero(buff, 1023);
send(socket, "", 1, 0);
if ((ret = recv(socket, buff, 1023, 0)) == 0)
return (0);
if ((size = ft_atoi(buff)) == 0)
{
send(socket, "", 1, 0);
ft_putendl("SUCCESS");
return (s_create_file(path[1]));
}
else if (size == -1)
return (report(2, socket));
send(socket, "", 1, 0);
return (fill_file(buff, path, size, socket));
}
int rwp (int argc, char *argv[])
{
u64 key;
char *file;
int rc;
FN;
if (argc == 1) {
file = "testfile";
} else {
file = argv[1];
}
rc = Creat(file);
if (rc) {
printf("Creat of %s failed %d\n", file, rc);
return rc;
}
rc = Open(file, &key);
if (rc) {
printf("Open of %s failed %d\n", file, rc);
return rc;
}
fill_file(key, 1000);
Seek(key, 0);
check_file(key, 1000);
rc = Close(key);
if (rc) {
printf("Close of %llx failed %d\n", key, rc);
return rc;
}
return 0;
}
/* Create a file of size file_size */
static uint64_t create_file(const char *file_name, uint64_t file_size)
{
int fd;
int flags;
mode_t mode;
uint64_t actual_size; /* Less than size if the file system is full */
flags = O_CREAT | O_TRUNC | O_WRONLY;
mode = S_IRUSR | S_IWUSR | S_IRGRP | S_IWGRP | S_IROTH;
before();
fd = open(file_name, flags, mode);
if (fd == -1 && errno == ENOSPC) {
errno = 0;
after("open");
fprintf(stderr,"\nrndrm99: open failed with ENOSPC\n");fflush(stderr);
display_stats();
return 0; /* File system full */
}
CHECK(fd != -1);
after("open");
actual_size = fill_file(fd, file_size);
before();
CHECK(close(fd) != -1);
after("close");
if (file_size != 0 && actual_size == 0) {
printf("\nrndrm99: unlinking zero size file\n");fflush(stdout);
before();
CHECK(unlink(file_name) != -1);
after("unlink (create_file)");
}
return actual_size;
}
/* test swap in */
void test_swap_in(void)
{
vm_map_t map;
const w_size_t num_pages = 10;
const w_size_t num_frames = 4;
char tmp;
w_size_t i;
w_size_t offset;
w_boolean_t match_found = FALSE;
vmsim_init();
w_set_exception_handler(vmsim_test_segv_handler);
vm_alloc(num_pages, num_frames, &map);
/* fault all pages */
for (i = 0; i < num_pages; i++) {
offset = get_random_byte_mapping_position(1);
*((char *) map.start + i * p_sz + offset) = MAGIC;
}
dlog(LOG_INFO, "all pages faulted\n");
/* fill swap with other data */
fill_file(map.swap_handle, num_pages * p_sz, ~MAGIC);
/*
* at most num_frame pages will be backed by RAM;
* at least the (num_frame + 1)-th page is in swap;
* it will be swapped in
*/
for (i = 0; i < num_frames + 1; i++) {
offset = get_random_byte_mapping_position(1);
*((char *) map.start + i * p_sz + offset) = MAGIC;
}
/* some pages will be swapped in */
for (i = 0; i < num_pages; i++) {
offset = get_random_byte_mapping_position(1);
tmp = *((char *) map.start + i * p_sz + offset);
dlog(LOG_DEBUG, "tmp = %02x, not-magic = %02x\n", tmp, ~MAGIC);
if (tmp == ~MAGIC)
match_found = TRUE;
}
dlog(LOG_DEBUG, "match found: %d\n", match_found);
vm_free(map.start);
vmsim_cleanup();
basic_test(match_found == TRUE);
}
void llp_nodes_finalize() {
/* Writing file. */
fill_file(llp_get_recent_nodes_file());
/* Freeing memory allocated to hosts cache. */
free(nodes.cache_list);
/* Freeing mutexes. */
pthread_mutex_destroy(&nodes_mutex);
liblog_debug(LAYER_LINK, "mutex destroyed.");
liblog_debug(LAYER_LINK, "nodes module finalized.");
}
int main(int argc, char *argv[])
{
int fd, index;
if (argc < 2)
return usage(argv[0]);
index = parse_options(argc, argv);
if (index == -1 || index + 1 > argc)
return usage(argv[0]);
fd = open(argv[index], O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (fd < 0)
return error("open output file");
return fill_file(fd);
}
/* check that initial read-only page is swapped out */
void test_initial_readonly_page_is_swapped_out(void)
{
vm_map_t map;
const w_size_t num_pages = 10;
const w_size_t num_frames = 4;
char tmp;
w_size_t i;
w_size_t offset;
w_boolean_t match_found = FALSE;
vmsim_init();
w_set_exception_handler(vmsim_test_segv_handler);
vm_alloc(num_pages, num_frames, &map);
/* zero swap for further checking */
fill_file(map.swap_handle, num_pages * p_sz, ~MAGIC);
/*
* at most num_frame pages will be backed by RAM
* the (num_frame + 1)-th access will result in a swap out
*/
for (i = 0; i < num_frames + 1; i++) {
offset = get_random_byte_mapping_position(1);
tmp = *((char *) map.start + i * p_sz + offset);
/* sync ram file to ensure proper swap out */
w_sync_mapping(map.start, num_pages);
}
/* go through swap to look for swapped pages */
for (i = 0; i < num_pages; i++) {
tmp = read_byte_from_file(map.swap_handle, i * p_sz + offset);
dlog(LOG_DEBUG, "tmp = %02x\n", tmp);
if (tmp != ~MAGIC) {
dlog(LOG_DEBUG, "match found, frame index:"
"%u, offset: %u\n", i, offset);
match_found = TRUE;
}
}
dlog(LOG_DEBUG, "match found: %d\n", match_found);
vm_free(map.start);
vmsim_cleanup();
basic_test(match_found == TRUE);
}
/* test whether clean pages are swapped out (it shouldn't happen) */
void test_clean_page_is_not_swapped_out(void)
{
vm_map_t map;
char tmp, value1, value2;
const w_size_t offset1 = 10;
const w_size_t offset2 = 20;
vmsim_init();
w_set_exception_handler(vmsim_test_segv_handler);
vm_alloc(2, 1, &map);
/* fault first page (write) */
*((char *) map.start + 0 * p_sz + offset1) = MAGIC;
w_sync_mapping(map.start, 2);
/* fault second page (write) -- first page goes to swap */
*((char *) map.start + 1 * p_sz + offset2) = MAGIC;
w_sync_mapping(map.start, 2);
/* fault first page (read-only) -- second page goes to swap */
tmp = *((char *) map.start + 0 * p_sz + offset1);
w_sync_mapping(map.start, 2);
fill_file(map.swap_handle, 2 * p_sz, ~MAGIC);
/* fault second page (read-only) -- first page should not go to swap */
tmp = *((char *) map.start + 1 * p_sz + offset2);
w_sync_mapping(map.start, 2);
/* fault first page (read-only) -- second page should not go to swap */
tmp = *((char *) map.start + 0 * p_sz + offset1);
w_sync_mapping(map.start, 2);
w_set_file_pointer(map.swap_handle, 0 * p_sz + offset1);
w_read_file(map.swap_handle, &value1, 1);
w_set_file_pointer(map.swap_handle, 1 * p_sz + offset2);
w_read_file(map.swap_handle, &value2, 1);
dlog(LOG_LEVEL, "value1 = %02x, value2 = %02x\n", value1, value2);
vm_free(map.start);
vmsim_cleanup();
basic_test(value1 == ~MAGIC && value2 == ~MAGIC);
}
static void chew_some_file(int num)
{
char filename[10];
int fd, rv;
buf = mmap(NULL, FILE_SIZE, PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANON, 0, 0);
rv = MMAP_FAILED;
if (buf == MAP_FAILED)
goto out_exit;
sprintf(filename, "chew%d", num);
fd = open(filename, O_CREAT | O_EXCL | O_RDWR, 0666);
rv = OPEN_FAILED;
if (fd == -1)
goto out_unmap;
while (!stop) {
prepare_buf();
switch (fill_file(fd)) {
case -1:
rv = WRITE_FAILED;
goto out_exit;
case -2:
rv = SEEK_FAILED;
goto out_exit;
}
if (fsync(fd) == -1) {
rv = FSYNC_FAILED;
goto out_exit;
}
if (fsync(fd) == -1) {
rv = FSYNC_FAILED;
goto out_exit;
}
switch (check_file(fd)) {
case -1:
rv = READ_FAILED;
goto out_exit;
case -2:
rv = SEEK_FAILED;
goto out_exit;
case 1:
rv = FILE_CORRUPTED;
int fd1;
char str[32];
// create standard file
sprintf(str, "standard_%s", filename);
fd1 = open(str, O_WRONLY | O_CREAT | O_TRUNC, 0666);
if (write(fd1, buf, FILE_SIZE) != FILE_SIZE)
err("can't write %s: %m\n", str);
close(fd1);
goto out_exit;
}
}
rv = SUCCESS;
close(fd);
unlink(filename);
out_unmap:
munmap(buf, FILE_SIZE);
out_exit:
exit(rv);
}
int main (int argc, char *argv[])
{
u8 *buf;
int fd;
ssize_t haveRead;
size_t toRead;
unsigned i;
unsigned bufsize;
unsigned n;
u64 size;
u64 rest;
u64 l;
drop_caches();
Option.file_size = 0;
Option.iterations = 1;
Option.loops = 1;
punyopt(argc, argv, myopt, "b:");
n = Option.iterations;
bufsize = 1 << Bufsize_log2;
buf = emalloc(bufsize);
size = Option.file_size;
if (!size) {
size = memtotal() / FRACTION_OF_MEMORY;
}
if (Hog_memory) {
hog_leave_memory(size / FRACTION_OF_FILE_SIZE);
}
fd = open(Option.file, O_RDWR | O_CREAT | O_TRUNC, 0666);
fill_file(fd, size);
for (l = 0; l < Option.loops; l++) {
startTimer();
for (i = 0; i < n; ++i) {
for (rest = size; rest; rest -= haveRead) {
if (rest > bufsize) {
toRead = bufsize;
} else {
toRead = rest;
}
haveRead = read(fd, buf, toRead);
if (haveRead != toRead) {
if (haveRead == -1) {
perror("read");
exit(1);
}
fprintf(stderr,
"toRead=%llu != haveRead=%lld\n",
(u64)toRead, (s64)haveRead);
exit(1);
}
}
lseek(fd, 0, 0);
}
stopTimer();
printf("size=%lld n=%d ", size, n);
prTimer();
printf("\t%6.4g MiB/s\n",
(double)(n * size) / get_avg() / MEBI);
}
close(fd);
unlink(Option.file);
return 0;
}