[core] Privatize internal headers

3 files changed, 359 insertions, 0 deletions

diff --git a/src/mbgl/util/async_task.hpp b/src/mbgl/util/async_task.hpp
new file mode 100644
index 0000000000..09bdab94d7
--- /dev/null
+++ b/src/mbgl/util/async_task.hpp
@@ -0,0 +1,28 @@
+#ifndef MBGL_UTIL_ASYNC_TASK
+#define MBGL_UTIL_ASYNC_TASK
+
+#include <mbgl/util/noncopyable.hpp>
+
+#include <memory>
+#include <functional>
+
+namespace mbgl {
+namespace util {
+
+class AsyncTask : private util::noncopyable {
+public:
+    AsyncTask(std::function<void()>&&);
+    ~AsyncTask();
+
+    void send();
+    void unref();
+
+private:
+    class Impl;
+    std::unique_ptr<Impl> impl;
+};
+
+}
+}
+
+#endif
diff --git a/src/mbgl/util/timer.hpp b/src/mbgl/util/timer.hpp
new file mode 100644
index 0000000000..932bb47950
--- /dev/null
+++ b/src/mbgl/util/timer.hpp
@@ -0,0 +1,30 @@
+#ifndef MBGL_UTIL_TIMER
+#define MBGL_UTIL_TIMER
+
+#include <mbgl/util/noncopyable.hpp>
+#include <mbgl/util/chrono.hpp>
+
+#include <memory>
+#include <functional>
+
+namespace mbgl {
+namespace util {
+
+class Timer : private util::noncopyable {
+public:
+    Timer();
+    ~Timer();
+
+    void start(Duration timeout, Duration repeat, std::function<void()>&&);
+    void stop();
+    void unref();
+
+private:
+    class Impl;
+    std::unique_ptr<Impl> impl;
+};
+
+}
+}
+
+#endif
diff --git a/src/mbgl/util/uv.hpp b/src/mbgl/util/uv.hpp
new file mode 100644
index 0000000000..73166fe6c3
--- /dev/null
+++ b/src/mbgl/util/uv.hpp
@@ -0,0 +1,301 @@
+#ifndef MBGL_UTIL_UV
+#define MBGL_UTIL_UV
+
+#include <mbgl/util/noncopyable.hpp>
+
+#include <functional>
+#include <cassert>
+#include <memory>
+#include <string>
+#include <memory>
+
+#include <uv.h>
+
+// XXX: uv.h will include <bits/termios.h> that will
+// polute the namespace by defining "B0" which
+// will conflict with boost macros.
+#ifdef B0
+#undef B0
+#endif
+
+#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
+#define UV_ASYNC_PARAMS(handle) uv_async_t *handle, int
+#define UV_TIMER_PARAMS(timer) uv_timer_t *timer, int
+#else
+#define UV_ASYNC_PARAMS(handle) uv_async_t *handle
+#define UV_TIMER_PARAMS(timer) uv_timer_t *timer
+#endif
+
+#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
+
+// Add thread local storage to libuv API:
+// https://github.com/joyent/libuv/commit/5d2434bf71e47802841bad218d521fa254d1ca2d
+
+typedef pthread_key_t uv_key_t;
+
+UV_EXTERN int uv_key_create(uv_key_t* key);
+UV_EXTERN void uv_key_delete(uv_key_t* key);
+UV_EXTERN void* uv_key_get(uv_key_t* key);
+UV_EXTERN void uv_key_set(uv_key_t* key, void* value);
+
+#endif
+
+namespace uv {
+
+class loop : public mbgl::util::noncopyable {
+public:
+    inline loop() {
+#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
+        l = uv_loop_new();
+        if (l == nullptr) {
+#else
+        l = new uv_loop_t;
+        if (uv_loop_init(l) != 0) {
+#endif
+            throw std::runtime_error("failed to initialize loop");
+        }
+    }
+
+    inline ~loop() {
+#if UV_VERSION_MAJOR == 0 && UV_VERSION_MINOR <= 10
+        uv_loop_delete(l);
+#else
+        uv_loop_close(l);
+        delete l;
+#endif
+    }
+
+    inline void run() {
+        uv_run(l, UV_RUN_DEFAULT);
+    }
+
+    inline uv_loop_t* operator*() {
+        return l;
+    }
+
+    inline uv_loop_t* get() {
+        return l;
+    }
+
+private:
+    uv_loop_t *l = nullptr;
+};
+
+template <class T>
+class handle : public mbgl::util::noncopyable {
+public:
+    inline handle() : t(reinterpret_cast<uv_handle_t*>(new T)) {
+        t->data = this;
+    }
+
+    inline ~handle() {
+        uv_close(t.release(), [](uv_handle_t* h) {
+            delete reinterpret_cast<T*>(h);
+        });
+    }
+
+    inline void ref() {
+        uv_ref(t.get());
+    }
+
+    inline void unref() {
+        uv_unref(t.get());
+    }
+
+    inline T* get() {
+        return reinterpret_cast<T*>(t.get());
+    }
+
+private:
+    std::unique_ptr<uv_handle_t> t;
+};
+
+class async : public handle<uv_async_t> {
+public:
+    inline async(uv_loop_t* loop, std::function<void ()> fn_)
+        : fn(fn_) {
+        if (uv_async_init(loop, get(), async_cb) != 0) {
+            throw std::runtime_error("failed to initialize async");
+        }
+    }
+
+    inline void send() {
+        if (uv_async_send(get()) != 0) {
+            throw std::runtime_error("failed to async send");
+        }
+    }
+
+private:
+    static void async_cb(UV_ASYNC_PARAMS(handle)) {
+        reinterpret_cast<async*>(handle->data)->fn();
+    }
+
+    std::function<void ()> fn;
+};
+
+class timer : public handle<uv_timer_t> {
+public:
+    inline timer(uv_loop_t* loop) {
+        if (uv_timer_init(loop, get()) != 0) {
+            throw std::runtime_error("failed to initialize timer");
+        }
+    }
+
+    inline void start(uint64_t timeout, uint64_t repeat, std::function<void ()> fn_) {
+        fn = fn_;
+        if (uv_timer_start(get(), timer_cb, timeout, repeat) != 0) {
+            throw std::runtime_error("failed to start timer");
+        }
+    }
+
+    inline void stop() {
+        fn = nullptr;
+        if (uv_timer_stop(get()) != 0) {
+            throw std::runtime_error("failed to stop timer");
+        }
+    }
+
+private:
+    static void timer_cb(UV_TIMER_PARAMS(t)) {
+        reinterpret_cast<timer*>(t->data)->fn();
+    }
+
+    std::function<void ()> fn;
+};
+
+class mutex : public mbgl::util::noncopyable {
+public:
+    inline mutex() {
+        if (uv_mutex_init(&mtx) != 0) {
+            throw std::runtime_error("failed to initialize mutex lock");
+        }
+    }
+    inline ~mutex() { uv_mutex_destroy(&mtx); }
+    inline void lock() { uv_mutex_lock(&mtx); }
+    inline void unlock() { uv_mutex_unlock(&mtx); }
+private:
+    uv_mutex_t mtx;
+};
+
+class rwlock : public mbgl::util::noncopyable {
+public:
+    inline rwlock() {
+        if (uv_rwlock_init(&mtx) != 0) {
+            throw std::runtime_error("failed to initialize read-write lock");
+        }
+    }
+    inline ~rwlock() { uv_rwlock_destroy(&mtx); }
+    inline void rdlock() { uv_rwlock_rdlock(&mtx); }
+    inline void wrlock() { uv_rwlock_wrlock(&mtx); }
+    inline void rdunlock() { uv_rwlock_rdunlock(&mtx); }
+    inline void wrunlock() { uv_rwlock_wrunlock(&mtx); }
+
+private:
+    uv_rwlock_t mtx;
+};
+
+template <class T>
+class tls : public mbgl::util::noncopyable {
+public:
+    inline tls(T* val) {
+        tls();
+        set(val);
+    }
+    inline tls() {
+        if (uv_key_create(&key) != 0) {
+            throw std::runtime_error("failed to initialize thread local storage key");
+        }
+    }
+    inline ~tls() { uv_key_delete(&key); }
+    inline T* get() { return reinterpret_cast<T*>(uv_key_get(&key)); }
+    inline void set(T* val) { uv_key_set(&key, val); }
+
+private:
+    uv_key_t key;
+};
+
+class lock {
+public:
+    lock(mutex &);
+    lock(const std::unique_ptr<mutex> &);
+    lock(const lock &) = delete;
+    lock(lock &&lock);
+    lock &operator=(const lock &lock) = delete;
+    lock &operator=(lock &&lock);
+    ~lock();
+private:
+    mutex *mtx = nullptr;
+};
+
+class readlock {
+public:
+    readlock(rwlock &);
+    readlock(const std::unique_ptr<rwlock> &);
+    readlock(const readlock &) = delete;
+    readlock(readlock &&lock);
+    readlock &operator=(const readlock &lock) = delete;
+    readlock &operator=(readlock &&lock);
+    ~readlock();
+private:
+    rwlock *mtx = nullptr;
+};
+
+class writelock {
+public:
+    writelock(rwlock &);
+    writelock(const std::unique_ptr<rwlock> &);
+    writelock(const writelock &) = delete;
+    writelock(writelock &&lock);
+    writelock &operator=(const writelock &lock) = delete;
+    writelock &operator=(writelock &&lock);
+    ~writelock();
+private:
+    rwlock *mtx = nullptr;
+};
+
+template <class T>
+class exclusive {
+public:
+    exclusive(T& val, mutex &mtx) : ptr(&val), lock(mtx) {}
+    exclusive(T *val, mutex &mtx) : ptr(val), lock(mtx) {}
+    exclusive(mutex &mtx) : lock(mtx) {}
+    exclusive(const std::unique_ptr<mutex> &mtx) : lock(mtx) {}
+    exclusive(const exclusive &) = delete;
+    exclusive(exclusive &&) = default;
+    exclusive &operator=(const exclusive &) = delete;
+    exclusive &operator=(exclusive &&) = default;
+
+    T *operator->() { return ptr; }
+    const T *operator->() const { return ptr; }
+    T *operator*() { return ptr; }
+    const T *operator*() const { return ptr; }
+    operator T&() { return *ptr; }
+    operator const T&() const { return *ptr; }
+
+    void operator<<(T& val) { operator<<(&val); }
+    void operator<<(T *val) {
+        if (ptr) {
+            throw std::runtime_error("exclusive<> was assigned before");
+        }
+        ptr = val;
+    }
+
+private:
+    T *ptr = nullptr;
+    class lock lock;
+};
+
+
+
+const char *getFileRequestError(uv_fs_t *req);
+
+template <typename T>
+void close(T *specific) {
+    uv_close(reinterpret_cast<uv_handle_t *>(specific), [](uv_handle_t *generic) {
+        delete reinterpret_cast<T *>(generic);
+    });
+}
+
+}
+
+#endif