99ba07deb3
instead of requiring inheritence, drops mbgl.FileSource pass NodeFileSource* around as v8::External
63 lines
1.9 KiB
C++
63 lines
1.9 KiB
C++
#pragma once
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#include <mbgl/storage/file_source.hpp>
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#pragma GCC diagnostic push
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#pragma GCC diagnostic ignored "-Wunused-parameter"
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#pragma GCC diagnostic ignored "-Wshadow"
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#include <node.h>
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#include <node_version.h>
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#include <nan.h>
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#pragma GCC diagnostic pop
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#include <memory>
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#include <mutex>
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#include <unordered_map>
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#include <vector>
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namespace node_mbgl {
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namespace util { template <typename T> class AsyncQueue; }
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class NodeFileSource : public mbgl::FileSource {
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public:
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NodeFileSource(v8::Handle<v8::Object>);
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~NodeFileSource();
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mbgl::Request* request(const mbgl::Resource&, uv_loop_t*, Callback);
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void cancel(mbgl::Request*);
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// visiblity?
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void notify(const mbgl::Resource&, const std::shared_ptr<const mbgl::Response>&);
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private:
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struct Action;
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using Queue = util::AsyncQueue<Action>;
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void processAdd(const mbgl::Resource&);
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void processCancel(const mbgl::Resource&);
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v8::Persistent<v8::Object> options;
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private:
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#if (NODE_MODULE_VERSION > NODE_0_10_MODULE_VERSION)
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std::unordered_map<mbgl::Resource, v8::Persistent<v8::Object, v8::CopyablePersistentTraits<v8::Object>>, mbgl::Resource::Hash> pending;
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#else
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std::unordered_map<mbgl::Resource, v8::Persistent<v8::Object>, mbgl::Resource::Hash> pending;
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#endif
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// The observers list will hold pointers to all the requests waiting
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// for a particular resource. It is also used for coalescing requests,
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// so we don't ask for the same resources twice. The access must be
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// guarded by a mutex because the list is also accessed by a thread
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// from the mbgl::Map object and from the main thread when notifying
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// requests of completion. Concurrent access is specially needed when
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// canceling a request to avoid a deadlock (see #129).
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std::unordered_map<mbgl::Resource, std::vector<mbgl::Request*>, mbgl::Resource::Hash> observers;
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std::mutex observersMutex;
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Queue *queue = nullptr;
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};
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}
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