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allow for cancellable request, track in tiles, and cancel when obsolete

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Justin R. Miller
2014-02-25 16:33:06 -08:00
parent 0406a82299
commit 55b28aaf65
5 changed files with 45 additions and 90 deletions
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5
src/map/tile.cpp
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@@ -9,7 +9,6 @@
#include <llmr/renderer/fill_bucket.hpp>
#include <llmr/renderer/line_bucket.hpp>
#include <llmr/renderer/point_bucket.hpp>
#include <llmr/platform/platform.hpp>
#include <llmr/util/pbf.hpp>
#include <llmr/util/string.hpp>
@@ -75,7 +74,7 @@ void Tile::request() {
// Note: Somehow this feels slower than the change to request_http()
std::shared_ptr<Tile> tile = shared_from_this();
platform::request_http_tile(url, tile, [=](platform::Response& res) {
platform::Request request = platform::request_http(url, [=](platform::Response& res) {
if (res.code == 200 && tile->state != obsolete) {
tile->state = Tile::loaded;
tile->data.swap(res.body);
@@ -86,12 +85,14 @@ void Tile::request() {
}, []() {
platform::restart();
});
req = request;
}
void Tile::cancel() {
// TODO: thread safety
if (state != obsolete) {
state = obsolete;
platform::cancel_request_http(req);
} else {
assert((!"logic error? multiple cancelleations"));
}