int mmap_remove(mmap_handle_t* mmap_handle) {
FAIL_ON(unlink(mmap_handle->path) != 0);
return 0;
fail:
return -1;
}
int mmap_unload(mmap_handle_t* mmap_handle) {
FAIL_ON(munmap(mmap_handle->start_addr, mmap_handle->size) != 0);
return 0;
fail:
return -1;
}
void Player::jump() {
if(inPortal){
int32_t to = layer;
if(portalDirection == Portal::Up){
to++;
while(to < map->layers.size()){
if(map->layers[to]->type == Layer::Object)
break;
to++;
}
FAIL_ON(to == map->layers.size(), "No layer found going up");
} else {
to--;
while(to > 0 ){
if(map->layers[to]->type == Layer::Object)
break;
to--;
}
FAIL_ON(to < 0, "No layer found going down");
}
ObjectLayer* layerO = (ObjectLayer*)map->layers[to];
Map* map = this->map; /* avoid use after free as this class is deleted */
shared_ptr<Player> player = shared_ptr<Player>(new Player(layerO, body->GetPosition(), to));
((ObjectLayer*)map->layers[layer])->objects.erase(map->player);
map->player = player;
layerO->objects.insert(map->player);
} else {
setState(PlayerPreJump);
jumpStart = time;
}
}
static inline
int query_engine_tester(mws::MwsIndexNode* data,
encoded_formula_t* query,
result_callback_t cb,
void *cb_handle) {
const char* ms_path = TMPFILE_PATH;
memsector_writer_t mswr;
memsector_handle_t ms;
/* ensure the file does not exist */
FAIL_ON(unlink(TMPFILE_PATH) != 0 && errno != ENOENT);
FAIL_ON(memsector_create(&mswr, ms_path, TMPFILE_SIZE) != 0);
printf("Memsector %s created\n", ms_path);
data->exportToMemsector(&mswr);
printf("Index exported to memsector\n");
printf("Space used: %d\n", memsector_size_inuse(&mswr.ms_header->alloc_header));
FAIL_ON(memsector_save(&mswr) != 0);
printf("Memsector saved\n");
FAIL_ON(memsector_load(&ms, ms_path) != 0);
printf("Memsector loaded\n");
if (query_engine_run(&ms.index, query, cb, cb_handle)
== QUERY_ERROR) {
goto fail;
}
printf("Query successfull\n");
FAIL_ON(memsector_remove(&ms) != 0);
printf("Memsector removed\n");
return EXIT_SUCCESS;
fail:
if (data) delete data;
return EXIT_FAILURE;
}
int mmap_create(const char* path, off_t size, int flags, mmap_handle_t* mmap_handle) {
int fd = -1;
char* mapped_region;
int oflags;
int prot;
/* round up size to page boundary */
size = round_to_page_size(size);
/* setting open/mmap flags */
prot = PROT_READ | PROT_WRITE;
oflags = O_RDWR | O_CREAT | O_EXCL;
/* opening file */
FAIL_ON((fd = open(path, oflags, S_IRUSR | S_IWUSR)) < 0);
/* set file size by seek and write */
FAIL_ON(lseek(fd, size - 1, SEEK_SET) == (off_t)-1);
FAIL_ON(write(fd, " ", 1) != 1);
/* memory-map the file */
mapped_region = mmap(/* addr = */ NULL, size, prot, flags, fd,
/* offset = */ 0);
FAIL_ON(mapped_region == MAP_FAILED);
/* copy to mmap_handle */
mmap_handle->path = path;
mmap_handle->start_addr = mapped_region;
mmap_handle->size = size;
/* close file descriptor */
(void) close(fd);
return 0;
fail:
if (fd >= 0) (void) close(fd);
return -1;
}
int mmap_load(const char* path, int flags, mmap_handle_t* mmap_handle) {
int fd = -1;
struct stat s;
off_t size;
char* mapped_region;
int oflags;
int prot;
/* setting open/mmap flags */
prot = PROT_READ;
oflags = O_RDONLY;
/* opening file */
FAIL_ON((fd = open(path, oflags)) < 0);
/* get file size */
FAIL_ON(fstat(fd, &s) < 0);
size = s.st_size;
/* memory-map the file */
mapped_region = mmap(/* addr = */ NULL, size, prot, flags, fd,
/* offset = */ 0);
FAIL_ON(mapped_region == MAP_FAILED);
/* copy to mmap_handle */
mmap_handle->path = path;
mmap_handle->start_addr = mapped_region;
mmap_handle->size = size;
/* close file descriptor */
(void) close(fd);
return 0;
fail:
if (fd >= 0) (void) close(fd);
return -1;
}
BEGIN_DECLS
int
save_pid_file(const char *path) {
FILE* fp = fopen(path, "w");
FAIL_ON(fp == NULL);
fprintf(fp, "%"PRIu64, (uint64_t) getpid());
return fclose(fp);
fail:
return -1;
}
