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#include <mbgl/storage/caching_http_file_source.hpp>
#include <mbgl/storage/asset_request.hpp>
#include <mbgl/storage/http_request.hpp>
#include <mbgl/storage/sqlite_store.hpp>
#include <mbgl/storage/asset_request.hpp>
#include <mbgl/util/uv-messenger.h>
#include <mbgl/util/mapbox.hpp>
#include <mbgl/util/std.hpp>
#include <uv.h>
namespace mbgl {
CachingHTTPFileSource::CachingHTTPFileSource(const std::string &path_)
: path(path_) {}
CachingHTTPFileSource::~CachingHTTPFileSource() {
}
void CachingHTTPFileSource::setLoop(uv_loop_t* loop_) {
assert(!loop);
threadId = std::this_thread::get_id();
store = !path.empty() ? util::ptr<SQLiteStore>(new SQLiteStore(loop_, path)) : nullptr;
loop = loop_;
queue = new uv_messenger_t;
uv_messenger_init(loop, queue, [](void *ptr) {
std::unique_ptr<std::function<void()>> fn { reinterpret_cast<std::function<void()> *>(ptr) };
(*fn)();
});
uv_unref((uv_handle_t *)&queue->async);
}
bool CachingHTTPFileSource::hasLoop() {
return loop;
}
void CachingHTTPFileSource::clearLoop() {
assert(std::this_thread::get_id() == threadId);
assert(loop);
uv_messenger_stop(queue, [](uv_messenger_t *msgr) {
delete msgr;
});
util::ptr<BaseRequest> req;
// Send a cancel() message to all requests that we are still holding.
for (const std::pair<std::string, std::weak_ptr<BaseRequest>> &pair : pending) {
if ((req = pair.second.lock())) {
req->cancel();
}
}
store.reset();
loop = nullptr;
}
void CachingHTTPFileSource::setBase(std::string value) {
// TODO: Make threadsafe.
base.swap(value);
}
void CachingHTTPFileSource::setAccessToken(std::string value) {
// TODO: Make threadsafe.
accessToken.swap(value);
}
std::string CachingHTTPFileSource::getAccessToken() const {
return accessToken;
}
std::unique_ptr<Request> CachingHTTPFileSource::request(ResourceType type, const std::string& url_) {
assert(std::this_thread::get_id() == threadId);
std::string url = url_;
// Make URL absolute.
const size_t separator = url.find("://");
if (separator == std::string::npos) {
url = base + url;
}
// Normalize mapbox:// URLs.
switch (type) {
case ResourceType::Glyphs:
url = util::mapbox::normalizeGlyphsURL(url, accessToken);
default:
url = util::mapbox::normalizeSourceURL(url, accessToken);
}
util::ptr<BaseRequest> req;
// First, try to find an existing Request object.
auto it = pending.find(url);
if (it != pending.end()) {
req = it->second.lock();
}
if (!req) {
if (url.substr(0, 8) == "asset://") {
req = std::make_shared<AssetRequest>(url.substr(8), loop);
} else {
req = std::make_shared<HTTPRequest>(type, url, loop, store);
}
pending.emplace(url, req);
}
return util::make_unique<Request>(req);
}
void CachingHTTPFileSource::prepare(std::function<void()> fn) {
if (std::this_thread::get_id() == threadId) {
fn();
} else {
uv_messenger_send(queue, new std::function<void()>(std::move(fn)));
}
}
void CachingHTTPFileSource::setReachability(bool reachable) {
if (reachable && loop) {
prepare([this]() {
util::ptr<BaseRequest> req;
for (const std::pair<std::string, std::weak_ptr<BaseRequest>> &pair : pending) {
if ((req = pair.second.lock())) {
req->retryImmediately();
}
}
});
}
}
}
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