GameState events_menu_sim_menu(GameVars *game_vars) {
SDL_Event ev;
while (SDL_PollEvent(&ev)) {
GameEvent gameev = events_parse(&ev);
switch (gameev) {
case EV_EXIT:
return STATE_EXIT;
case EV_KEY_Q:
if (game_vars->grid != NULL) {
grid_free(game_vars->grid);
game_vars->grid = NULL;
}
return STATE_MAIN_MENU;
case EV_KEY_ESC:
return STATE_SIM_PAUSED;
case EV_KEY_DOWN:
return STATE_SIM_SAVE;
case EV_KEY_UP:
return STATE_SIM_SETTINGS;
case EV_RESIZE:
Event_SetWindowSize(game_vars, ev.window.data1, ev.window.data2);
break;
default:
break;
}
}
return game_vars->state;
}
int main(int argc, char **argv)
{
srand(time(NULL));
clock_t beg, end;
int size = 50;
grid *grd = grid_allocate(size, size);
beg = clock();
grid_create(grd, 0.6);
cl_list* clusters = clusterization(grd);
end = clock();
int i, j;
for (i = 0; i < size; i++)
{
for (j = 0; j < size; j++)
printf("%d", grd->cells[i * size + j]);
printf("\n");
}
cl_list_print(clusters);
create_image("img.png", 2000, grd, clusters);
grid_free(grd);
printf("Finished in %g sec\n", (double)(end - beg) / CLOCKS_PER_SEC);
return 0;
}
struct grid_trie_node *grid_node_compact (struct grid_trie_node *self)
{
/* Tries to merge the node with the child node. Returns pointer to
the compacted node. */
struct grid_trie_node *ch;
/* Node that is a subscription cannot be compacted. */
if (grid_node_has_subscribers (self))
return self;
/* Only a node with a single child can be compacted. */
if (self->type != 1)
return self;
/* Check whether combined prefixes would fix into a single node. */
ch = *grid_node_child (self, 0);
if (self->prefix_len + ch->prefix_len + 1 > GRID_TRIE_PREFIX_MAX)
return self;
/* Concatenate the prefixes. */
memmove (ch->prefix + self->prefix_len + 1, ch->prefix, ch->prefix_len);
memcpy (ch->prefix, self->prefix, self->prefix_len);
ch->prefix [self->prefix_len] = self->u.sparse.children [0];
ch->prefix_len += self->prefix_len + 1;
/* Get rid of the obsolete parent node. */
grid_free (self);
/* Return the new compacted node. */
return ch;
}
static void grid_xreq_destroy (struct grid_sockbase *self)
{
struct grid_xreq *xreq;
xreq = grid_cont (self, struct grid_xreq, sockbase);
grid_xreq_term (xreq);
grid_free (xreq);
}
void grid_xreq_rm (struct grid_sockbase *self, struct grid_pipe *pipe)
{
struct grid_xreq *xreq;
struct grid_xreq_data *data;
xreq = grid_cont (self, struct grid_xreq, sockbase);
data = grid_pipe_getdata (pipe);
grid_lb_rm (&xreq->lb, &data->lb);
grid_fq_rm (&xreq->fq, &data->fq);
grid_free (data);
grid_sockbase_stat_increment (self, GRID_STAT_CURRENT_SND_PRIORITY,
grid_lb_get_priority (&xreq->lb));
}
void grid_node_term (struct grid_trie_node *self)
{
int children;
int i;
/* Trivial case of the recursive algorithm. */
if (!self)
return;
/* Recursively destroy the child nodes. */
children = self->type <= GRID_TRIE_SPARSE_MAX ?
self->type : (self->u.dense.max - self->u.dense.min + 1);
for (i = 0; i != children; ++i)
grid_node_term (*grid_node_child (self, i));
/* Deallocate this node. */
grid_free (self);
}
/* =============================================================================
* maze_free
* =============================================================================
*/
void
maze_free (maze_t* mazePtr)
{
coordinate_t* coordPtr;
if (mazePtr->gridPtr != NULL) {
grid_free(mazePtr->gridPtr);
}
queue_free(mazePtr->workQueuePtr);
vector_free(mazePtr->wallVectorPtr);
while ((coordPtr = (coordinate_t *)vector_popBack (mazePtr->srcVectorPtr)) != NULL) {
coordinate_free(coordPtr);
}
vector_free(mazePtr->srcVectorPtr);
while ((coordPtr = (coordinate_t *)vector_popBack (mazePtr->dstVectorPtr)) != NULL) {
coordinate_free(coordPtr);
}
vector_free(mazePtr->dstVectorPtr);
free(mazePtr);
}
void grid_usock_term (struct grid_usock *self)
{
grid_assert_state (self, GRID_USOCK_STATE_IDLE);
if (self->in.batch)
grid_free (self->in.batch);
grid_fsm_event_term (&self->event_error);
grid_fsm_event_term (&self->event_received);
grid_fsm_event_term (&self->event_sent);
grid_fsm_event_term (&self->event_established);
grid_worker_cancel (self->worker, &self->task_recv);
grid_worker_task_term (&self->task_stop);
grid_worker_task_term (&self->task_recv);
grid_worker_task_term (&self->task_send);
grid_worker_task_term (&self->task_accept);
grid_worker_task_term (&self->task_connected);
grid_worker_task_term (&self->task_connecting);
grid_worker_fd_term (&self->wfd);
grid_fsm_term (&self->fsm);
}
static int grid_node_unsubscribe (struct grid_trie_node **self,
const uint8_t *data, size_t size)
{
int i;
int j;
int index;
int new_min;
struct grid_trie_node **ch;
struct grid_trie_node *new_node;
struct grid_trie_node *ch2;
if (!size)
goto found;
/* If prefix does not match the data, return. */
if (grid_node_check_prefix (*self, data, size) != (*self)->prefix_len)
return 0;
/* Skip the prefix. */
data += (*self)->prefix_len;
size -= (*self)->prefix_len;
if (!size)
goto found;
/* Move to the next node. */
ch = grid_node_next (*self, *data);
if (!ch)
return 0; /* TODO: This should be an error. */
/* Recursive traversal of the trie happens here. If the subscription
wasn't really removed, nothing have changed in the trie and
no additional pruning is needed. */
if (grid_node_unsubscribe (ch, data + 1, size - 1) == 0)
return 0;
/* Subscription removal is already done. Now we are going to compact
the trie. However, if the following node remains in place, there's
nothing to compact here. */
if (*ch)
return 1;
/* Sparse array. */
if ((*self)->type < GRID_TRIE_DENSE_TYPE) {
/* Get the indices of the removed child. */
for (index = 0; index != (*self)->type; ++index)
if ((*self)->u.sparse.children [index] == *data)
break;
assert (index != (*self)->type);
/* Remove the destroyed child from both lists of children. */
memmove (
(*self)->u.sparse.children + index,
(*self)->u.sparse.children + index + 1,
(*self)->type - index - 1);
memmove (
grid_node_child (*self, index),
grid_node_child (*self, index + 1),
((*self)->type - index - 1) * sizeof (struct grid_trie_node*));
--(*self)->type;
*self = grid_realloc (*self, sizeof (struct grid_trie_node) +
((*self)->type * sizeof (struct grid_trie_node*)));
assert (*self);
/* If there are no more children and no refcount, we can delete
the node altogether. */
if (!(*self)->type && !grid_node_has_subscribers (*self)) {
grid_free (*self);
*self = NULL;
return 1;
}
/* Try to merge the node with the following node. */
*self = grid_node_compact (*self);
return 1;
}
/* Dense array. */
/* In this case the array stays dense. We have to adjust the limits of
the array, if appropriate. */
if ((*self)->u.dense.nbr > GRID_TRIE_SPARSE_MAX + 1) {
/* If the removed item is the leftmost one, trim the array from
the left side. */
if (*data == (*self)->u.dense.min) {
for (i = 0; i != (*self)->u.dense.max - (*self)->u.dense.min + 1;
++i)
if (*grid_node_child (*self, i))
break;
new_min = i + (*self)->u.dense.min;
memmove (grid_node_child (*self, 0), grid_node_child (*self, i),
((*self)->u.dense.max - new_min + 1) *
sizeof (struct grid_trie_node*));
(*self)->u.dense.min = new_min;
--(*self)->u.dense.nbr;
*self = grid_realloc (*self, sizeof (struct grid_trie_node) +
((*self)->u.dense.max - new_min + 1) *
sizeof (struct grid_trie_node*));
assert (*self);
return 1;
}
/* If the removed item is the rightmost one, trim the array from
the right side. */
if (*data == (*self)->u.dense.max) {
for (i = (*self)->u.dense.max - (*self)->u.dense.min; i != 0; --i)
if (*grid_node_child (*self, i))
break;
(*self)->u.dense.max = i + (*self)->u.dense.min;
--(*self)->u.dense.nbr;
*self = grid_realloc (*self, sizeof (struct grid_trie_node) +
((*self)->u.dense.max - (*self)->u.dense.min + 1) *
sizeof (struct grid_trie_node*));
assert (*self);
return 1;
}
/* If the item is removed from the middle of the array, do nothing. */
--(*self)->u.dense.nbr;
return 1;
}
/* Convert dense array into sparse array. */
{
new_node = grid_alloc (sizeof (struct grid_trie_node) +
GRID_TRIE_SPARSE_MAX * sizeof (struct grid_trie_node*), "trie node");
assert (new_node);
new_node->refcount = 0;
new_node->prefix_len = (*self)->prefix_len;
memcpy (new_node->prefix, (*self)->prefix, new_node->prefix_len);
new_node->type = GRID_TRIE_SPARSE_MAX;
j = 0;
for (i = 0; i != (*self)->u.dense.max - (*self)->u.dense.min + 1;
++i) {
ch2 = *grid_node_child (*self, i);
if (ch2) {
new_node->u.sparse.children [j] = i + (*self)->u.dense.min;
*grid_node_child (new_node, j) = ch2;
++j;
}
}
assert (j == GRID_TRIE_SPARSE_MAX);
grid_free (*self);
*self = new_node;
return 1;
}
found:
/* We are at the end of the subscription here. */
/* Subscription doesn't exist. */
if (grid_slow (!*self || !grid_node_has_subscribers (*self)))
return -EINVAL;
/* Subscription exists. Unsubscribe. */
--(*self)->refcount;
/* If reference count has dropped to zero we can try to compact
the node. */
if (!(*self)->refcount) {
/* If there are no children, we can delete the node altogether. */
if (!(*self)->type) {
grid_free (*self);
*self = NULL;
return 1;
}
/* Try to merge the node with the following node. */
*self = grid_node_compact (*self);
return 1;
}
return 0;
}
int grid_trie_subscribe (struct grid_trie *self, const uint8_t *data, size_t size)
{
int i;
struct grid_trie_node **node;
struct grid_trie_node **n;
struct grid_trie_node *ch;
struct grid_trie_node *old_node;
int pos;
uint8_t c;
uint8_t c2;
uint8_t new_min;
uint8_t new_max;
int old_children;
int new_children;
int inserted;
int more_nodes;
/* Step 1 -- Traverse the trie. */
node = &self->root;
pos = 0;
while (1) {
/* If there are no more nodes on the path, go to step 4. */
if (!*node)
goto step4;
/* Check whether prefix matches the new subscription. */
pos = grid_node_check_prefix (*node, data, size);
data += pos;
size -= pos;
/* If only part of the prefix matches, go to step 2. */
if (pos < (*node)->prefix_len)
goto step2;
/* Even if whole prefix matches and there's no more data to match,
go directly to step 5. */
if (!size)
goto step5;
/* Move to the next node. If it is not present, go to step 3. */
n = grid_node_next (*node, *data);
if (!n || !*n)
goto step3;
node = n;
++data;
--size;
}
/* Step 2 -- Split the prefix into two parts if required. */
step2:
ch = *node;
*node = grid_alloc (sizeof (struct grid_trie_node) +
sizeof (struct grid_trie_node*), "trie node");
assert (*node);
(*node)->refcount = 0;
(*node)->prefix_len = pos;
(*node)->type = 1;
memcpy ((*node)->prefix, ch->prefix, pos);
(*node)->u.sparse.children [0] = ch->prefix [pos];
ch->prefix_len -= (pos + 1);
memmove (ch->prefix, ch->prefix + pos + 1, ch->prefix_len);
ch = grid_node_compact (ch);
*grid_node_child (*node, 0) = ch;
pos = (*node)->prefix_len;
/* Step 3 -- Adjust the child array to accommodate the new character. */
step3:
/* If there are no more data in the subscription, there's nothing to
adjust in the child array. Proceed directly to the step 5. */
if (!size)
goto step5;
/* If the new branch fits into sparse array... */
if ((*node)->type < GRID_TRIE_SPARSE_MAX) {
*node = grid_realloc (*node, sizeof (struct grid_trie_node) +
((*node)->type + 1) * sizeof (struct grid_trie_node*));
assert (*node);
(*node)->u.sparse.children [(*node)->type] = *data;
++(*node)->type;
node = grid_node_child (*node, (*node)->type - 1);
*node = NULL;
++data;
--size;
goto step4;
}
/* If the node is already a dense array, resize it to fit the next
character. */
if ((*node)->type == GRID_TRIE_DENSE_TYPE) {
c = *data;
if (c < (*node)->u.dense.min || c > (*node)->u.dense.max) {
new_min = (*node)->u.dense.min < c ? (*node)->u.dense.min : c;
new_max = (*node)->u.dense.max > c ? (*node)->u.dense.max : c;
*node = grid_realloc (*node, sizeof (struct grid_trie_node) +
(new_max - new_min + 1) * sizeof (struct grid_trie_node*));
assert (*node);
old_children = (*node)->u.dense.max - (*node)->u.dense.min + 1;
new_children = new_max - new_min + 1;
if ((*node)->u.dense.min != new_min) {
inserted = (*node)->u.dense.min - new_min;
memmove (grid_node_child (*node, inserted),
grid_node_child (*node, 0),
old_children * sizeof (struct grid_trie_node*));
memset (grid_node_child (*node, 0), 0,
inserted * sizeof (struct grid_trie_node*));
}
else {
memset (grid_node_child (*node, old_children), 0,
(new_children - old_children) *
sizeof (struct grid_trie_node*));
}
(*node)->u.dense.min = new_min;
(*node)->u.dense.max = new_max;
}
++(*node)->u.dense.nbr;
node = grid_node_child (*node, c - (*node)->u.dense.min);
++data;
--size;
goto step4;
}
/* This is a sparse array, but no more children can be added to it.
We have to convert it into a dense array. */
{
/* First, determine the range of children. */
new_min = 255;
new_max = 0;
for (i = 0; i != (*node)->type; ++i) {
c2 = (*node)->u.sparse.children [i];
new_min = new_min < c2 ? new_min : c2;
new_max = new_max > c2 ? new_max : c2;
}
new_min = new_min < *data ? new_min : *data;
new_max = new_max > *data ? new_max : *data;
/* Create a new mode, while keeping the old one for a while. */
old_node = *node;
*node = (struct grid_trie_node*) grid_alloc (sizeof (struct grid_trie_node) +
(new_max - new_min + 1) * sizeof (struct grid_trie_node*),
"trie node");
assert (*node);
/* Fill in the new node. */
(*node)->refcount = 0;
(*node)->prefix_len = old_node->prefix_len;
(*node)->type = GRID_TRIE_DENSE_TYPE;
memcpy ((*node)->prefix, old_node->prefix, old_node->prefix_len);
(*node)->u.dense.min = new_min;
(*node)->u.dense.max = new_max;
(*node)->u.dense.nbr = old_node->type + 1;
memset (*node + 1, 0, (new_max - new_min + 1) *
sizeof (struct grid_trie_node*));
for (i = 0; i != old_node->type; ++i)
*grid_node_child (*node, old_node->u.sparse.children [i] - new_min) =
*grid_node_child (old_node, i);
node = grid_node_next (*node, *data);
++data;
--size;
/* Get rid of the obsolete old node. */
grid_free (old_node);
}
/* Step 4 -- Create new nodes for remaining part of the subscription. */
step4:
assert (!*node);
while (1) {
/* Create a new node to hold the next part of the subscription. */
more_nodes = size > GRID_TRIE_PREFIX_MAX;
*node = grid_alloc (sizeof (struct grid_trie_node) +
(more_nodes ? sizeof (struct grid_trie_node*) : 0), "trie node");
assert (*node);
/* Fill in the new node. */
(*node)->refcount = 0;
(*node)->type = more_nodes ? 1 : 0;
(*node)->prefix_len = size < (uint8_t) GRID_TRIE_PREFIX_MAX ?
(uint8_t) size : (uint8_t) GRID_TRIE_PREFIX_MAX;
memcpy ((*node)->prefix, data, (*node)->prefix_len);
data += (*node)->prefix_len;
size -= (*node)->prefix_len;
if (!more_nodes)
break;
(*node)->u.sparse.children [0] = *data;
node = grid_node_child (*node, 0);
++data;
--size;
}
/* Step 5 -- Create the subscription as such. */
step5:
++(*node)->refcount;
/* Return 1 in case of a fresh subscription. */
return (*node)->refcount == 1 ? 1 : 0;
}
void UPnP_Media_Server(IDirectFBEventBuffer *p_eventbuffer)
{
GridObj *grid=NULL, *text_grid=NULL;
IconObj *icon=NULL;
TextObj *text=NULL, *text_selected=NULL;
UPnPNode *head=NULL, *unode_selected=NULL;
DFBRectangle *page_space;
int key = 0, grid_count = 1, serv_response = 0;
int page_size=5, line_distance=50;
serv_response = upnp_cmd_handler(p_eventbuffer, &head, NULL, SHOWMS);
if(serv_response!=REQ_SUCCESS) return;
icon_alert(PHOTO_LOADING_G, D_MOVE_CENTER);
page_space = (DFBRectangle*)malloc(sizeof(DFBRectangle));
grid_init(page_space, screen_space->x+50, screen_space->y+80, screen_space->w-100, screen_space->h-160);
grid=create_view_tree(grid_count, page_space);
icon=create_icon_tree(grid, main_layer, win_dsc);
text_grid = create_text_grid_tree(page_size, line_distance, page_space);
text = create_text_node_tree(text_grid);
upnp_text_node_map(head, text);
draw_text_table(text, icon->window_surface);
icon_opacity(icon, 255);
icon_stackclass(icon, DWSC_MIDDLE);
close_icon_alert();
text_selected=text;
unode_selected=head;
while(1)
{
key = GetInputDeviceEventByType(p_eventbuffer,PTYPE_NOSCREEN_API);
if( key == DIKI_UP )
{
upnp_cmd_handler(p_eventbuffer, NULL, NULL, CDUP);
free(page_space);
grid_free(grid);
grid_free(text_grid);
icons_free(icon);
texts_free(text);
delete_unode_tree(head);
return;
}else if( key == DIKI_LEFT ){
if(unode_selected->elder_brother_node!=NULL)
{
if(text_selected->left!=NULL&&text_selected->left->content!=NULL)
{
unode_selected=unode_selected->elder_brother_node;
shift_text_left(&text_selected, icon->window_surface);
}else {
go_prev_page(page_size, &unode_selected, text, icon->window_surface);
text_selected=text;
}
}
}else if( key == DIKI_RIGHT ){
if(unode_selected->brother_node!=NULL)
{
unode_selected=unode_selected->brother_node;
if(text_selected->right!=NULL&&text_selected->right->content!=NULL)
{
shift_text_right(&text_selected, icon->window_surface);
}else{
go_next_page(unode_selected, text, icon->window_surface);
text_selected=text;
}
}
}else if( key == DIKI_DOWN ){
}else if( key == DIKI_ENTER ){
serv_response = upnp_cmd_handler(p_eventbuffer, NULL, unode_selected->guid, SETMS);
icon_opacity(icon, 0);
UPnP_OpenMediaServer(p_eventbuffer, NULL);
draw_title_string("Select Media Server", font_title, rgba, title_space, title_window_surface);
title_window_surface->Flip(title_window_surface, NULL, DSFLIP_NONE);
icon_opacity(icon, 255);
}else if( key == DIKI_A || key == DIKI_B ){
icon_opacity(icon, 0);
Detect_USBMount(p_eventbuffer);
icon_opacity(icon, 255);
p_eventbuffer->Reset(p_eventbuffer);
}
p_eventbuffer->Reset(p_eventbuffer);
}
}
void UPnP_MediaController(IDirectFBEventBuffer *p_eventbuffer, char *media_device_guid)
{
GridObj *grid=NULL;
IconObj *toolbar_icon=NULL;
FcNode *toolbar_node=NULL;
DFBRectangle *toolbar_space, *toolbar_icon_space;
int key = 0, grid_count = 6, serv_response = 0, toolbar_style=H_STYLE;
char *toolbar[]={"play","pause","stop","mute","voice up","voice down","0x"};
char *toolbar_path[]={MEDIA_PLAY_0_G, MEDIA_PLAY_1_G, MEDIA_PLAY_2_G, MEDIA_PLAY_3_G, MEDIA_PLAY_4_G, MEDIA_PLAY_5_G,"0x"};
serv_response = upnp_cmd_handler(p_eventbuffer, NULL, media_device_guid, OPEN);
if(serv_response !=REQ_SUCCESS) return;
toolbar_space = (DFBRectangle*)malloc(sizeof(DFBRectangle));
toolbar_icon_space = (DFBRectangle*)malloc(sizeof(DFBRectangle));
grid_init(toolbar_space, screen_space->x+100, screen_space->y+380, screen_space->w-100, screen_space->h-350);
grid_init(toolbar_icon_space, 0, 0, 50, 50);
grid=create_button_tree(grid_count, toolbar_space, toolbar_style);
toolbar_icon=create_icon_tree(grid, main_layer, win_dsc);
toolbar_node=create_menu_tree(toolbar, toolbar_path);
draw_icon_tree(toolbar_node, toolbar_icon, toolbar_icon_space, gp_dfb);
icon_opacity(toolbar_icon, 100);
toolbar_icon->window->SetOpacity(toolbar_icon->window, 255);
icon_stackclass(toolbar_icon, DWSC_MIDDLE);
while(1)
{
key = GetInputDeviceEventByType(p_eventbuffer,PTYPE_NOSCREEN_API);
if( key == DIKI_UP )
{
free(toolbar_space);
free(toolbar_icon_space);
grid_free(grid);
icons_free(toolbar_icon);
delete_fcnode_tree(toolbar_node);
return;
}else if( key == DIKI_LEFT ){
if(toolbar_node->elder_brother_node!=NULL)
{
toolbar_node=toolbar_node->elder_brother_node;
toolbar_icon->window->SetOpacity(toolbar_icon->window, 100);
toolbar_icon=toolbar_icon->left;
toolbar_icon->window->SetOpacity(toolbar_icon->window, 255);
}
}else if( key == DIKI_RIGHT ){
if(toolbar_node->brother_node!=NULL)
{
toolbar_node=toolbar_node->brother_node;
toolbar_icon->window->SetOpacity(toolbar_icon->window, 100);
toolbar_icon=toolbar_icon->right;
toolbar_icon->window->SetOpacity(toolbar_icon->window, 255);
}
}else if( key == DIKI_DOWN ){
free(toolbar_space);
free(toolbar_icon_space);
grid_free(grid);
icons_free(toolbar_icon);
delete_fcnode_tree(toolbar_node);
return;
}else if( key == DIKI_ENTER ){
if(!strcmp(toolbar_node->title,toolbar[0])){
serv_response = upnp_cmd_handler(p_eventbuffer, NULL, NULL, PLAY);
}else if(!strcmp(toolbar_node->title,toolbar[1])){
serv_response = upnp_cmd_handler(p_eventbuffer, NULL, NULL, STOP);
}else if(!strcmp(toolbar_node->title,toolbar[2])){
serv_response = upnp_cmd_handler(p_eventbuffer, NULL, NULL, PAUSE);
}else if(!strcmp(toolbar_node->title,toolbar[3])){
serv_response = upnp_cmd_handler(p_eventbuffer, NULL, NULL, MUTE);
}else if(!strcmp(toolbar_node->title,toolbar[4])){
serv_response = upnp_cmd_handler(p_eventbuffer, NULL, NULL, VUP);
}else if(!strcmp(toolbar_node->title,toolbar[5])){
serv_response = upnp_cmd_handler(p_eventbuffer, NULL, NULL, VDOWN);
}
}else if( key == DIKI_A || key == DIKI_B ){
icon_opacity(toolbar_icon, 0);
Detect_USBMount(p_eventbuffer);
icon_opacity(toolbar_icon, 255);
p_eventbuffer->Reset(p_eventbuffer);
}
p_eventbuffer->Reset(p_eventbuffer);
}
}
int grid_poll (struct grid_pollfd *fds, int nfds, int timeout)
{
int rc;
int i;
int pos;
int fd;
int res;
size_t sz;
struct pollfd *pfd;
/* Construct a pollset to be used with OS-level 'poll' function. */
pfd = grid_alloc (sizeof (struct pollfd) * nfds * 2, "pollset");
alloc_assert (pfd);
pos = 0;
for (i = 0; i != nfds; ++i) {
if (fds [i].events & GRID_POLLIN) {
sz = sizeof (fd);
rc = grid_getsockopt (fds [i].fd, GRID_SOL_SOCKET, GRID_RCVFD, &fd, &sz);
if (grid_slow (rc < 0)) {
grid_free (pfd);
errno = -rc;
return -1;
}
grid_assert (sz == sizeof (fd));
pfd [pos].fd = fd;
pfd [pos].events = POLLIN;
++pos;
}
if (fds [i].events & GRID_POLLOUT) {
sz = sizeof (fd);
rc = grid_getsockopt (fds [i].fd, GRID_SOL_SOCKET, GRID_SNDFD, &fd, &sz);
if (grid_slow (rc < 0)) {
grid_free (pfd);
errno = -rc;
return -1;
}
grid_assert (sz == sizeof (fd));
pfd [pos].fd = fd;
pfd [pos].events = POLLIN;
++pos;
}
}
/* Do the polling itself. */
rc = poll (pfd, pos, timeout);
if (grid_slow (rc <= 0)) {
res = errno;
grid_free (pfd);
errno = res;
return rc;
}
/* Move the results from OS-level poll to grid_poll's pollset. */
res = 0;
pos = 0;
for (i = 0; i != nfds; ++i) {
fds [i].revents = 0;
if (fds [i].events & GRID_POLLIN) {
if (pfd [pos].revents & POLLIN)
fds [i].revents |= GRID_POLLIN;
++pos;
}
if (fds [i].events & GRID_POLLOUT) {
if (pfd [pos].revents & POLLIN)
fds [i].revents |= GRID_POLLOUT;
++pos;
}
if (fds [i].revents)
++res;
}
grid_free (pfd);
return res;
}
/* =============================================================================
* maze_checkPaths
* =============================================================================
*/
bool_t
maze_checkPaths (maze_t* mazePtr, list_t* pathVectorListPtr, bool_t doPrintPaths)
{
grid_t* gridPtr = mazePtr->gridPtr;
long width = gridPtr->width;
long height = gridPtr->height;
long depth = gridPtr->depth;
long i;
/* Mark walls */
grid_t* testGridPtr = grid_alloc(width, height, depth);
grid_addPath(testGridPtr, mazePtr->wallVectorPtr);
/* Mark sources */
vector_t* srcVectorPtr = mazePtr->srcVectorPtr;
long numSrc = vector_getSize(srcVectorPtr);
for (i = 0; i < numSrc; i++) {
coordinate_t* srcPtr = (coordinate_t*)vector_at(srcVectorPtr, i);
grid_setPoint(testGridPtr, srcPtr->x, srcPtr->y, srcPtr->z, 0);
}
/* Mark destinations */
vector_t* dstVectorPtr = mazePtr->dstVectorPtr;
long numDst = vector_getSize(dstVectorPtr);
for (i = 0; i < numDst; i++) {
coordinate_t* dstPtr = (coordinate_t*)vector_at(dstVectorPtr, i);
grid_setPoint(testGridPtr, dstPtr->x, dstPtr->y, dstPtr->z, 0);
}
/* Make sure path is contiguous and does not overlap */
long id = 0;
list_iter_t it;
list_iter_reset(&it, pathVectorListPtr);
while (list_iter_hasNext(&it)) {
vector_t* pathVectorPtr = (vector_t*)list_iter_next(&it);
long numPath = vector_getSize(pathVectorPtr);
long i;
for (i = 0; i < numPath; i++) {
id++;
vector_t* pointVectorPtr = (vector_t*)vector_at(pathVectorPtr, i);
/* Check start */
long* prevGridPointPtr = (long*)vector_at(pointVectorPtr, 0);
long x;
long y;
long z;
grid_getPointIndices(gridPtr, prevGridPointPtr, &x, &y, &z);
if (grid_getPoint(testGridPtr, x, y, z) != 0) {
grid_free(testGridPtr);
return FALSE;
}
coordinate_t prevCoordinate;
grid_getPointIndices(gridPtr,
prevGridPointPtr,
&prevCoordinate.x,
&prevCoordinate.y,
&prevCoordinate.z);
long numPoint = vector_getSize(pointVectorPtr);
long j;
for (j = 1; j < (numPoint-1); j++) { /* no need to check endpoints */
long* currGridPointPtr = (long*)vector_at(pointVectorPtr, j);
coordinate_t currCoordinate;
grid_getPointIndices(gridPtr,
currGridPointPtr,
&currCoordinate.x,
&currCoordinate.y,
&currCoordinate.z);
if (!coordinate_areAdjacent(&currCoordinate, &prevCoordinate)) {
grid_free(testGridPtr);
return FALSE;
}
prevCoordinate = currCoordinate;
long x = currCoordinate.x;
long y = currCoordinate.y;
long z = currCoordinate.z;
if (grid_getPoint(testGridPtr, x, y, z) != GRID_POINT_EMPTY) {
grid_free(testGridPtr);
return FALSE;
} else {
grid_setPoint(testGridPtr, x, y, z, id);
}
}
/* Check end */
long* lastGridPointPtr = (long*)vector_at(pointVectorPtr, j);
grid_getPointIndices(gridPtr, lastGridPointPtr, &x, &y, &z);
if (grid_getPoint(testGridPtr, x, y, z) != 0) {
grid_free(testGridPtr);
return FALSE;
}
} /* iteratate over pathVector */
} /* iterate over pathVectorList */
if (doPrintPaths) {
puts("\nRouted Maze:");
grid_print(testGridPtr);
}
grid_free(testGridPtr);
return TRUE;
}