Add libhv and test http client

vendor/libhv/include/hv/ThreadLocalStorage.h

@@ -0,0 +1,67 @@
+#ifndef HV_THREAD_LOCAL_STORAGE_H_
+#define HV_THREAD_LOCAL_STORAGE_H_
+
+#include "hexport.h"
+#include "hplatform.h"
+
+#ifdef OS_WIN
+
+#define hthread_key_t               DWORD
+#define INVALID_HTHREAD_KEY         0xFFFFFFFF
+#define hthread_key_create(pkey)    *pkey = TlsAlloc()
+#define hthread_key_delete          TlsFree
+#define hthread_get_value           TlsGetValue
+#define hthread_set_value           TlsSetValue
+
+#else
+
+#define hthread_key_t               pthread_key_t
+#define INVALID_HTHREAD_KEY         0xFFFFFFFF
+#define hthread_key_create(pkey)    pthread_key_create(pkey, NULL)
+#define hthread_key_delete          pthread_key_delete
+#define hthread_get_value           pthread_getspecific
+#define hthread_set_value           pthread_setspecific
+
+#endif
+
+#ifdef __cplusplus
+namespace hv {
+
+class HV_EXPORT ThreadLocalStorage {
+public:
+    enum {
+        THREAD_NAME = 0,
+        EVENT_LOOP  = 1,
+        MAX_NUM     = 16,
+    };
+    ThreadLocalStorage() {
+        hthread_key_create(&key);
+    }
+
+    ~ThreadLocalStorage() {
+        hthread_key_delete(key);
+    }
+
+    void set(void* val) {
+        hthread_set_value(key, val);
+    }
+
+    void* get() {
+        return hthread_get_value(key);
+    }
+
+    static void  set(int idx, void* val);
+    static void* get(int idx);
+
+    static void  setThreadName(const char* name);
+    static const char* threadName();
+
+private:
+    hthread_key_t key;
+    static ThreadLocalStorage tls[MAX_NUM];
+};
+
+}
+#endif
+
+#endif // HV_THREAD_LOCAL_STORAGE_H_