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diff --git a/src/microhttpd/mhd_threads.h b/src/microhttpd/mhd_threads.h
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+++ b/src/microhttpd/mhd_threads.h
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+/*
+  This file is part of libmicrohttpd
+  Copyright (C) 2016 Karlson2k (Evgeny Grin)
+
+  This library is free software; you can redistribute it and/or
+  modify it under the terms of the GNU Lesser General Public
+  License as published by the Free Software Foundation; either
+  version 2.1 of the License, or (at your option) any later version.
+
+  This library is distributed in the hope that it will be useful,
+  but WITHOUT ANY WARRANTY; without even the implied warranty of
+  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
+  Lesser General Public License for more details.
+
+  You should have received a copy of the GNU Lesser General Public
+  License along with this library; if not, write to the Free Software
+  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301  USA
+
+*/
+
+/**
+ * @file microhttpd/mhd_threads.h
+ * @brief  Header for platform-independent threads abstraction
+ * @author Karlson2k (Evgeny Grin)
+ *
+ * Provides basic abstraction for threads.
+ * Any functions can be implemented as macro on some platforms
+ * unless explicitly marked otherwise.
+ * Any function argument can be skipped in macro, so avoid
+ * variable modification in function parameters.
+ *
+ * @warning Unlike pthread functions, most of functions return
+ *          nonzero on success.
+ */
+
+#ifndef MHD_THREADS_H
+#define MHD_THREADS_H 1
+
+#include "mhd_options.h"
+#ifdef HAVE_STDDEF_H
+#  include <stddef.h> /* for size_t */
+#else  /* ! HAVE_STDDEF_H */
+#  include <stdlib.h> /* for size_t */
+#endif /* ! HAVE_STDDEF_H */
+
+#if defined(MHD_USE_POSIX_THREADS)
+#  undef HAVE_CONFIG_H
+#  include <pthread.h>
+#  define HAVE_CONFIG_H 1
+#elif defined(MHD_USE_W32_THREADS)
+#  ifndef WIN32_LEAN_AND_MEAN
+#    define WIN32_LEAN_AND_MEAN 1
+#  endif /* !WIN32_LEAN_AND_MEAN */
+#  include <windows.h>
+#else
+#  error No threading API is available.
+#endif
+
+#ifndef MHD_NO_THREAD_NAMES
+#  if defined(MHD_USE_POSIX_THREADS)
+#    ifdef HAVE_PTHREAD_SETNAME_NP
+#      define MHD_USE_THREAD_NAME_
+#    endif /* HAVE_PTHREAD_SETNAME_NP */
+#  elif defined(MHD_USE_W32_THREADS)
+#    ifdef _MSC_FULL_VER
+       /* Thread names only available with VC compiler */
+#      define MHD_USE_THREAD_NAME_
+#    endif /* _MSC_FULL_VER */
+#  endif
+#endif
+
+#if defined(MHD_USE_POSIX_THREADS)
+  typedef pthread_t MHD_thread_handle_;
+#elif defined(MHD_USE_W32_THREADS)
+  typedef HANDLE MHD_thread_handle_;
+#endif
+
+#if defined(MHD_USE_POSIX_THREADS)
+#  define MHD_THRD_RTRN_TYPE_ void*
+#  define MHD_THRD_CALL_SPEC_
+#elif defined(MHD_USE_W32_THREADS)
+#  define MHD_THRD_RTRN_TYPE_ unsigned
+#  define MHD_THRD_CALL_SPEC_ __stdcall
+#endif
+
+#if defined(MHD_USE_POSIX_THREADS)
+/**
+ * Wait until specified thread is ended and free thread handle on success.
+ * @param thread handle to watch
+ * @return nonzero on success, zero otherwise
+ */
+#define MHD_join_thread_(thread) (!pthread_join((thread), NULL))
+#elif defined(MHD_USE_W32_THREADS)
+/**
+ * Wait until specified thread is ended and free thread handle on success.
+ * @param thread handle to watch
+ * @return nonzero on success, zero otherwise
+ */
+#define MHD_join_thread_(thread) (WAIT_OBJECT_0 == WaitForSingleObject((thread), INFINITE) ? (CloseHandle((thread)), !0) : 0)
+#endif
+
+/**
+ * Signature of main function for a thread.
+ *
+ * @param cls closure argument for the function
+ * @return termination code from the thread
+ */
+typedef MHD_THRD_RTRN_TYPE_
+(MHD_THRD_CALL_SPEC_ *MHD_THREAD_START_ROUTINE_)(void *cls);
+
+
+/**
+ * Create a thread and set the attributes according to our options.
+ *
+ * If thread is created, thread handle must be freed by #MHD_join_thread_().
+ *
+ * @param thread        handle to initialize
+ * @param stack_size    size of stack for new thread, 0 for default
+ * @param start_routine main function of thread
+ * @param arg argument  for start_routine
+ * @return non-zero on success; zero otherwise
+ */
+int
+MHD_create_thread_ (MHD_thread_handle_ *thread,
+                    size_t stack_size,
+                    MHD_THREAD_START_ROUTINE_ start_routine,
+                    void *arg);
+
+#ifndef MHD_USE_THREAD_NAME_
+#define MHD_create_named_thread_(t,n,s,r,a) MHD_create_thread_((t),(s),(r),(a))
+#else  /* MHD_USE_THREAD_NAME_ */
+/**
+ * Create a named thread and set the attributes according to our options.
+ *
+ * @param thread        handle to initialize
+ * @param thread_name   name for new thread
+ * @param stack_size    size of stack for new thread, 0 for default
+ * @param start_routine main function of thread
+ * @param arg argument  for start_routine
+ * @return non-zero on success; zero otherwise
+ */
+int
+MHD_create_named_thread_ (MHD_thread_handle_ *thread,
+                          const char* thread_name,
+                          size_t stack_size,
+                          MHD_THREAD_START_ROUTINE_ start_routine,
+                          void *arg);
+
+#endif /* MHD_USE_THREAD_NAME_ */
+
+#endif /* ! MHD_THREADS_H */