remove signal generator

.ccls-cache/@@mnt@raid@projects@dsp@harmonica@harmonica/@usr@include@c++@15.2.1@ext@atomicity.h

@@ -0,0 +1,129 @@
+// Support for atomic operations -*- C++ -*-
+
+// Copyright (C) 2004-2025 Free Software Foundation, Inc.
+//
+// This file is part of the GNU ISO C++ Library.  This library is free
+// software; you can redistribute it and/or modify it under the
+// terms of the GNU General Public License as published by the
+// Free Software Foundation; either version 3, 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 General Public License for more details.
+
+// Under Section 7 of GPL version 3, you are granted additional
+// permissions described in the GCC Runtime Library Exception, version
+// 3.1, as published by the Free Software Foundation.
+
+// You should have received a copy of the GNU General Public License and
+// a copy of the GCC Runtime Library Exception along with this program;
+// see the files COPYING3 and COPYING.RUNTIME respectively.  If not, see
+// <http://www.gnu.org/licenses/>.
+
+/** @file ext/atomicity.h
+ *  This file is a GNU extension to the Standard C++ Library.
+ */
+
+#ifndef _GLIBCXX_ATOMICITY_H
+#define _GLIBCXX_ATOMICITY_H	1
+
+#ifdef _GLIBCXX_SYSHDR
+#pragma GCC system_header
+#endif
+
+#include <bits/c++config.h>
+#include <bits/gthr.h>
+#include <bits/atomic_word.h>
+#if __has_include(<sys/single_threaded.h>)
+# include <sys/single_threaded.h>
+#endif
+
+namespace __gnu_cxx _GLIBCXX_VISIBILITY(default)
+{
+_GLIBCXX_BEGIN_NAMESPACE_VERSION
+
+  __attribute__((__always_inline__))
+  inline bool
+  __is_single_threaded() _GLIBCXX_NOTHROW
+  {
+#ifndef __GTHREADS
+    return true;
+#elif __has_include(<sys/single_threaded.h>)
+    return ::__libc_single_threaded;
+#else
+    return !__gthread_active_p();
+#endif
+  }
+
+  // Functions for portable atomic access.
+  // To abstract locking primitives across all thread policies, use:
+  // __exchange_and_add_dispatch
+  // __atomic_add_dispatch
+#ifdef _GLIBCXX_ATOMIC_BUILTINS
+  inline _Atomic_word
+  __attribute__((__always_inline__))
+  __exchange_and_add(volatile _Atomic_word* __mem, int __val)
+  { return __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }
+
+  inline void
+  __attribute__((__always_inline__))
+  __atomic_add(volatile _Atomic_word* __mem, int __val)
+  { __atomic_fetch_add(__mem, __val, __ATOMIC_ACQ_REL); }
+#else
+  _Atomic_word
+  __exchange_and_add(volatile _Atomic_word*, int) _GLIBCXX_NOTHROW;
+
+  void
+  __atomic_add(volatile _Atomic_word*, int) _GLIBCXX_NOTHROW;
+#endif
+
+  inline _Atomic_word
+  __attribute__((__always_inline__))
+  __exchange_and_add_single(_Atomic_word* __mem, int __val)
+  {
+    _Atomic_word __result = *__mem;
+    *__mem += __val;
+    return __result;
+  }
+
+  inline void
+  __attribute__((__always_inline__))
+  __atomic_add_single(_Atomic_word* __mem, int __val)
+  { *__mem += __val; }
+
+  inline _Atomic_word
+  __attribute__ ((__always_inline__))
+  __exchange_and_add_dispatch(_Atomic_word* __mem, int __val)
+  {
+    if (__is_single_threaded())
+      return __exchange_and_add_single(__mem, __val);
+    else
+      return __exchange_and_add(__mem, __val);
+  }
+
+  inline void
+  __attribute__ ((__always_inline__))
+  __atomic_add_dispatch(_Atomic_word* __mem, int __val)
+  {
+    if (__is_single_threaded())
+      __atomic_add_single(__mem, __val);
+    else
+      __atomic_add(__mem, __val);
+  }
+
+_GLIBCXX_END_NAMESPACE_VERSION
+} // namespace
+
+// Even if the CPU doesn't need a memory barrier, we need to ensure
+// that the compiler doesn't reorder memory accesses across the
+// barriers.
+#ifndef _GLIBCXX_READ_MEM_BARRIER
+#define _GLIBCXX_READ_MEM_BARRIER __atomic_thread_fence (__ATOMIC_ACQUIRE)
+#endif
+#ifndef _GLIBCXX_WRITE_MEM_BARRIER
+#define _GLIBCXX_WRITE_MEM_BARRIER __atomic_thread_fence (__ATOMIC_RELEASE)
+#endif
+
+#endif