From 06950aab233de6a2f47293d59575bb42f6131660 Mon Sep 17 00:00:00 2001
From: Joel Klinghed <the_jk@spawned.biz>
Date: Wed, 27 Jan 2021 22:06:49 +0100
Subject: Complete rewrite using C++ and with shared state support

---
 src/ref.h | 95 ---------------------------------------------------------------
 1 file changed, 95 deletions(-)
 delete mode 100644 src/ref.h

(limited to 'src/ref.h')

diff --git a/src/ref.h b/src/ref.h
deleted file mode 100644
index ea36ec7..0000000
--- a/src/ref.h
+++ /dev/null
@@ -1,95 +0,0 @@
-/**
- * \file ref.h
- * Thread-safe reference counter.
- */
-
-#ifndef REF_H
-#define REF_H
-
-#if __GNUC__ >= 4
-# define REF_DECLARE() volatile int _ref
-# define REF_INIT(ptr)                          \
-    ((ptr)->_ref = 1)
-# define REF_FREE(ptr)
-# define REF_INC(ptr)                           \
-    __sync_add_and_fetch(&((ptr)->_ref), 1)
-# define REF_DEC(ptr)                               \
-    (__sync_sub_and_fetch(&((ptr)->_ref), 1) <= 0)
-
-#else
-# warning Unsupported compiler, horrible fallback threadsafe reference counters
-
-# include "thread.h"
-
-/**
- * Declare reference counter. Use in struct declaration.
- */
-# define REF_DECLARE() int _ref; thread_lock_t* _reflock
-/**
- * Initialize reference counter. Must be first MACRO used.
- * @param ptr pointer to the struct, may not be NULL
- * @return false in case of allocation errors
- */
-# define REF_INIT(ptr)                              \
-    _ref_init(&((ptr)->_ref), &((ptr)->_reflock))
-/**
- * Free reference counter.
- * @param ptr pointer to the struct, may not be NULL
- */
-# define REF_FREE(ptr) thread_lock_free((ptr)->_reflock)
-/**
- * Increase reference counter.
- * @param ptr pointer to the struct, may not be NULL
- */
-# define REF_INC(ptr) _ref_inc(&((ptr)->_ref), (ptr)->_reflock)
-/**
- * Decrease reference counter.
- * @param ptr pointer to the struct, may not be NULL
- * @return true if reference counter now is zero
- */
-# define REF_DEC(ptr) _ref_dec(&((ptr)->_ref), (ptr)->_reflock)
-
-/**
- * Fallback implementation of REF_INIT.
- * @param value pointer to reference counter, may not be NULL
- * @param lock pointer to reference counter lock, may not be NULL
- * @return true if both pointers was initialized correctly
- */
-static inline NONULL bool _ref_init(int* value, thread_lock_t** lock)
-{
-    assert(value);
-    assert(lock);
-    *value = 1;
-    *lock = thread_lock_new();
-    return *lock;
-}
-
-/**
- * Fallback implementation of REF_INC.
- * @param value pointer to reference counter, may not be NULL
- * @param lock reference counter lock, may not be NULL
- */
-static inline NONULL void _ref_inc(int* value, thread_lock_t* lock)
-{
-    thread_lock_lock(lock);
-    (*value)++;
-    thread_lock_unlock(lock);
-}
-
-/**
- * Fallback implementation of REF_DEC.
- * @param value pointer to reference counter, may not be NULL
- * @param lock reference counter lock, may not be NULL
- * @return true if reference counter was decreased to 0
- */
-static inline NONULL bool _ref_dec(int* value, thread_lock_t* lock)
-{
-    bool ret;
-    thread_lock_lock(lock);
-    ret = --(*value) == 0;
-    thread_lock_unlock(lock);
-    return ret;
-}
-#endif
-
-#endif /* REF_H */
-- 
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