static void* APR_THREAD_FUNC seed_thread(apr_thread_t *thread, void *data)
#endif
{
mapcache_tile *tile;
mapcache_context seed_ctx = ctx;
seed_ctx.log = seed_log;
apr_pool_create(&seed_ctx.pool,ctx.pool);
tile = mapcache_tileset_tile_create(ctx.pool, tileset, grid_link);
tile->dimensions = dimensions;
while(1) {
struct seed_cmd cmd;
apr_status_t ret;
apr_pool_clear(seed_ctx.pool);
ret = pop_queue(&cmd);
if(ret != APR_SUCCESS || cmd.command == MAPCACHE_CMD_STOP) break;
tile->x = cmd.x;
tile->y = cmd.y;
tile->z = cmd.z;
if(cmd.command == MAPCACHE_CMD_SEED) {
/* aquire a lock on the metatile ?*/
mapcache_metatile *mt = mapcache_tileset_metatile_get(&seed_ctx, tile);
int isLocked = mapcache_lock_or_wait_for_resource(&seed_ctx, mapcache_tileset_metatile_resource_key(&seed_ctx,mt));
if(isLocked == MAPCACHE_TRUE) {
/* this will query the source to create the tiles, and save them to the cache */
mapcache_tileset_render_metatile(&seed_ctx, mt);
mapcache_unlock_resource(&seed_ctx, mapcache_tileset_metatile_resource_key(&seed_ctx,mt));
}
} else if (cmd.command == MAPCACHE_CMD_TRANSFER) {
int i;
mapcache_metatile *mt = mapcache_tileset_metatile_get(&seed_ctx, tile);
for (i = 0; i < mt->ntiles; i++) {
mapcache_tile *subtile = &mt->tiles[i];
mapcache_tileset_tile_get(&seed_ctx, subtile);
subtile->tileset = tileset_transfer;
tileset_transfer->cache->tile_set(&seed_ctx, subtile);
}
}
else { //CMD_DELETE
mapcache_tileset_tile_delete(&seed_ctx,tile,MAPCACHE_TRUE);
}
if(seed_ctx.get_error(&seed_ctx)) {
error_detected++;
ctx.log(&ctx,MAPCACHE_INFO,seed_ctx.get_error_message(&seed_ctx));
}
}
#ifdef USE_FORK
return 0;
#else
apr_thread_exit(thread,MAPCACHE_SUCCESS);
return NULL;
#endif
}
void _create_capabilities_kml(mapcache_context *ctx, mapcache_request_get_capabilities *req, char *url, char *path_info, mapcache_cfg *cfg)
{
mapcache_request_get_capabilities_kml *request = (mapcache_request_get_capabilities_kml*)req;
char *caps;
const char *onlineresource = apr_table_get(cfg->metadata,"url");
int i, j;
if(!onlineresource) {
onlineresource = url;
}
request->request.mime_type = apr_pstrdup(ctx->pool,"application/vnd.google-earth.kml+xml");
assert(request->tile || (request->grid && request->tileset));
/* if we have no specific tile, create a kml document referencing all the tiles of the first level in the grid*/
if(!request->tile) {
mapcache_extent extent = request->grid->restricted_extent?*(request->grid->restricted_extent):request->grid->grid->extent;
caps = apr_psprintf(ctx->pool, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n"
" <Document>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>512</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n",
extent.maxy,extent.miny,extent.maxx,extent.minx);
for(i=request->grid->grid_limits[0].minx; i<request->grid->grid_limits[0].maxx; i++) {
for(j=request->grid->grid_limits[0].miny; j<request->grid->grid_limits[0].maxy; j++) {
mapcache_tile *t = mapcache_tileset_tile_create(ctx->pool, request->tileset, request->grid);
mapcache_extent bb;
t->x = i;
t->y = j;
t->z = 0;
mapcache_grid_get_extent(ctx, t->grid_link->grid,
t->x, t->y, t->z, &bb);
caps = apr_psprintf(ctx->pool, "%s"
" <NetworkLink>\n"
" <name>%d%d%d</name>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>-1</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <Link>\n"
" <href>%s/kml/%s@%s/%d/%d/%d.kml</href>\n"
" <viewRefreshMode>onRegion</viewRefreshMode>\n"
" </Link>\n"
" </NetworkLink>\n",
caps, t->x, t->y, t->z,
bb.maxy, bb.miny, bb.maxx, bb.minx,
onlineresource, request->tileset->name, request->grid->grid->name,
t->z, t->x, t->y);
}
}
caps = apr_pstrcat(ctx->pool, caps, " </Document>\n</kml>\n", NULL);
} else {
mapcache_extent bbox;
mapcache_grid_get_extent(ctx, request->tile->grid_link->grid,
request->tile->x, request->tile->y, request->tile->z, &bbox);
caps = apr_psprintf(ctx->pool, "<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n"
" <Document>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>%d</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <GroundOverlay>\n"
" <drawOrder>0</drawOrder>\n"
" <Icon>\n"
" <href>%s/tms/1.0.0/%s@%s/%d/%d/%d.%s</href>\n"
" </Icon>\n"
" <LatLonBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonBox>\n"
" </GroundOverlay>\n",
(request->tile->z == request->tile->grid_link->grid->nlevels - 1) ? -1 : 512,
bbox.maxy, bbox.miny, bbox.maxx, bbox.miny,
onlineresource, request->tile->tileset->name, request->tile->grid_link->grid->name,
request->tile->z, request->tile->x, request->tile->y,
(request->tile->tileset->format) ? request->tile->tileset->format->extension : "png",
bbox.maxy, bbox.miny, bbox.maxx, bbox.minx);
if (request->tile->z < request->tile->grid_link->grid->nlevels - 1) {
for (i = 0; i <= 1; i++) {
for (j = 0; j <= 1; j++) {
/* compute the addresses of the child tiles */
mapcache_tile *t = mapcache_tileset_tile_create(ctx->pool, request->tile->tileset, request->tile->grid_link);
mapcache_extent bb;
t->x = (request->tile->x << 1) + i;
t->y = (request->tile->y << 1) + j;
t->z = request->tile->z + 1;
mapcache_grid_get_extent(ctx, t->grid_link->grid,
t->x, t->y, t->z, &bb);
caps = apr_psprintf(ctx->pool, "%s"
" <NetworkLink>\n"
" <name>%d%d%d</name>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>-1</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <Link>\n"
" <href>%s/kml/%s@%s/%d/%d/%d.kml</href>\n"
" <viewRefreshMode>onRegion</viewRefreshMode>\n"
" </Link>\n"
" </NetworkLink>\n",
caps, t->x, t->y, t->z,
bb.maxy, bb.miny, bb.maxx, bb.minx,
onlineresource, request->tile->tileset->name, request->tile->grid_link->grid->name,
t->z, t->x, t->y);
}
}
}
caps = apr_pstrcat(ctx->pool, caps, " </Document>\n</kml>\n", NULL);
}
request->request.capabilities = caps;
}
void cmd_thread() {
int n;
mapcache_tile *tile;
int z = minzoom;
int x = grid_link->grid_limits[z][0];
int y = grid_link->grid_limits[z][1];
mapcache_context cmd_ctx = ctx;
apr_pool_create(&cmd_ctx.pool,ctx.pool);
tile = mapcache_tileset_tile_create(ctx.pool, tileset, grid_link);
tile->dimensions = dimensions;
if(seed_mode == MAPCACHE_SEED_DEPTH_FIRST) {
do {
tile->x = x;
tile->y = y;
tile->z = z;
cmd_recurse(&cmd_ctx,tile);
x += tileset->metasize_x;
if( x >= grid_link->grid_limits[z][2] ) {
y += tileset->metasize_y;
if( y < grid_link->grid_limits[z][3]) {
x = grid_link->grid_limits[z][0];
}
}
} while (
x < grid_link->grid_limits[z][2]
&&
y < grid_link->grid_limits[z][3]
);
} else {
while(1) {
int action;
apr_pool_clear(cmd_ctx.pool);
if(sig_int_received || error_detected) { //stop if we were asked to stop by hitting ctrl-c
//remove all items from the queue
struct seed_cmd entry;
while (trypop_queue(&entry)!=APR_EAGAIN) {queuedtilestot--;}
break;
}
tile->x = x;
tile->y = y;
tile->z = z;
action = examine_tile(&cmd_ctx, tile);
if(action == MAPCACHE_CMD_SEED || action == MAPCACHE_CMD_TRANSFER) {
//current x,y,z needs seeding, add it to the queue
struct seed_cmd cmd;
cmd.x = x;
cmd.y = y;
cmd.z = z;
cmd.command = action;
push_queue(cmd);
queuedtilestot++;
progresslog(x,y,z);
}
//compute next x,y,z
x += tileset->metasize_x;
if(x >= grid_link->grid_limits[z][2]) {
//x is too big, increment y
y += tileset->metasize_y;
if(y >= grid_link->grid_limits[z][3]) {
//y is too big, increment z
z += 1;
if(z > maxzoom) break; //we've finished seeding
y = grid_link->grid_limits[z][1]; //set y to the smallest value for current z
}
x = grid_link->grid_limits[z][0]; //set x to smallest value for current z
}
}
}
//instruct rendering threads to stop working
for(n=0;n<nthreads;n++) {
struct seed_cmd cmd;
cmd.command = MAPCACHE_CMD_STOP;
push_queue(cmd);
}
if(error_detected && ctx.get_error_message(&ctx)) {
printf("%s\n",ctx.get_error_message(&ctx));
}
}
void _create_capabilities_kml(mapcache_context *ctx, mapcache_request_get_capabilities *req, char *url, char *path_info, mapcache_cfg *cfg) {
mapcache_request_get_capabilities_kml *request = (mapcache_request_get_capabilities_kml*)req;
char *caps;
const char *onlineresource = apr_table_get(cfg->metadata,"url");
double bbox[4];
if(!onlineresource) {
onlineresource = url;
}
request->request.mime_type = apr_pstrdup(ctx->pool,"application/vnd.google-earth.kml+xml");
mapcache_grid_get_extent(ctx,request->tile->grid_link->grid,
request->tile->x, request->tile->y, request->tile->z, bbox);
caps = apr_psprintf(ctx->pool,"<?xml version=\"1.0\" encoding=\"UTF-8\"?>\n"
"<kml xmlns=\"http://earth.google.com/kml/2.1\">\n"
" <Document>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>%d</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <GroundOverlay>\n"
" <drawOrder>0</drawOrder>\n"
" <Icon>\n"
" <href>%s/tms/1.0.0/%s@%s/%d/%d/%d.%s</href>\n"
" </Icon>\n"
" <LatLonBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonBox>\n"
" </GroundOverlay>\n",
(request->tile->z == request->tile->grid_link->grid->nlevels-1)?-1:512,
bbox[3],bbox[1],bbox[2],bbox[0],
onlineresource,request->tile->tileset->name,request->tile->grid_link->grid->name,
request->tile->z, request->tile->x,request->tile->y,
(request->tile->tileset->format)?request->tile->tileset->format->extension:"png",
bbox[3],bbox[1],bbox[2],bbox[0]);
if(request->tile->z < request->tile->grid_link->grid->nlevels-1) {
int i,j;
for(i=0;i<=1;i++) {
for(j=0;j<=1;j++) {
mapcache_tile *t = mapcache_tileset_tile_create(ctx->pool,request->tile->tileset, request->tile->grid_link);
double bb[4];
t->x = (request->tile->x << 1) +i;
t->y = (request->tile->y << 1) +j;
t->z = request->tile->z + 1;
mapcache_grid_get_extent(ctx,t->grid_link->grid,
t->x, t->y, t->z, bb);
caps = apr_psprintf(ctx->pool,"%s"
" <NetworkLink>\n"
" <name>%d%d%d</name>\n"
" <Region>\n"
" <Lod>\n"
" <minLodPixels>128</minLodPixels><maxLodPixels>-1</maxLodPixels>\n"
" </Lod>\n"
" <LatLonAltBox>\n"
" <north>%f</north><south>%f</south>\n"
" <east>%f</east><west>%f</west>\n"
" </LatLonAltBox>\n"
" </Region>\n"
" <Link>\n"
" <href>%s/kml/%s@%s/%d/%d/%d.kml</href>\n"
" <viewRefreshMode>onRegion</viewRefreshMode>\n"
" </Link>\n"
" </NetworkLink>\n",
caps,t->x,t->y,t->z,
bb[3],bb[1],bb[2],bb[0],
onlineresource,request->tile->tileset->name,request->tile->grid_link->grid->name,
t->z, t->x,t->y);
}
}
}
caps = apr_pstrcat(ctx->pool,caps," </Document>\n</kml>\n",NULL);
request->request.capabilities = caps;
}