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authorsanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
committersanine <sanine.not@pm.me>2022-08-27 23:52:56 -0500
commita4dd0ad63c00f4dee3b86dfd3075d1d61b2b3180 (patch)
tree13bd5bfa15e6fea2a12f176bae79adf9c6fd0933 /3rdparty/plibsys/src/patomic-sync.c
parentbde3e4f1bb7b8f8abca0884a7d994ee1c17a66b1 (diff)
add plibsys
Diffstat (limited to '3rdparty/plibsys/src/patomic-sync.c')
-rw-r--r--3rdparty/plibsys/src/patomic-sync.c190
1 files changed, 190 insertions, 0 deletions
diff --git a/3rdparty/plibsys/src/patomic-sync.c b/3rdparty/plibsys/src/patomic-sync.c
new file mode 100644
index 0000000..04a8d81
--- /dev/null
+++ b/3rdparty/plibsys/src/patomic-sync.c
@@ -0,0 +1,190 @@
+/*
+ * The MIT License
+ *
+ * Copyright (C) 2010-2017 Alexander Saprykin <saprykin.spb@gmail.com>
+ *
+ * Permission is hereby granted, free of charge, to any person obtaining
+ * a copy of this software and associated documentation files (the
+ * 'Software'), to deal in the Software without restriction, including
+ * without limitation the rights to use, copy, modify, merge, publish,
+ * distribute, sublicense, and/or sell copies of the Software, and to
+ * permit persons to whom the Software is furnished to do so, subject to
+ * the following conditions:
+ *
+ * The above copyright notice and this permission notice shall be
+ * included in all copies or substantial portions of the Software.
+ *
+ * THE SOFTWARE IS PROVIDED 'AS IS', WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
+ * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
+ * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
+ * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
+ * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+ */
+
+#include "patomic.h"
+
+#ifdef P_CC_CRAY
+# include <intrinsics.h>
+#endif
+
+P_LIB_API pint
+p_atomic_int_get (const volatile pint *atomic)
+{
+#ifdef P_CC_CRAY
+ __builtin_ia32_mfence ();
+#else
+ __sync_synchronize ();
+#endif
+ return *atomic;
+}
+
+P_LIB_API void
+p_atomic_int_set (volatile pint *atomic,
+ pint val)
+{
+ *atomic = val;
+#ifdef P_CC_CRAY
+ __builtin_ia32_mfence ();
+#else
+ __sync_synchronize ();
+#endif
+}
+
+P_LIB_API void
+p_atomic_int_inc (volatile pint *atomic)
+{
+ (void) __sync_fetch_and_add (atomic, 1);
+}
+
+P_LIB_API pboolean
+p_atomic_int_dec_and_test (volatile pint *atomic)
+{
+ return __sync_fetch_and_sub (atomic, 1) == 1 ? TRUE : FALSE;
+}
+
+P_LIB_API pboolean
+p_atomic_int_compare_and_exchange (volatile pint *atomic,
+ pint oldval,
+ pint newval)
+{
+#ifdef P_CC_CRAY
+ return __sync_val_compare_and_swap (atomic, oldval, newval) == oldval ? TRUE : FALSE;
+#else
+ return (pboolean) __sync_bool_compare_and_swap (atomic, oldval, newval);
+#endif
+}
+
+P_LIB_API pint
+p_atomic_int_add (volatile pint *atomic,
+ pint val)
+{
+ return (pint) __sync_fetch_and_add (atomic, val);
+}
+
+P_LIB_API puint
+p_atomic_int_and (volatile puint *atomic,
+ puint val)
+{
+ return (puint) __sync_fetch_and_and (atomic, val);
+}
+
+P_LIB_API puint
+p_atomic_int_or (volatile puint *atomic,
+ puint val)
+{
+ return (puint) __sync_fetch_and_or (atomic, val);
+}
+
+P_LIB_API puint
+p_atomic_int_xor (volatile puint *atomic,
+ puint val)
+{
+ return (puint) __sync_fetch_and_xor (atomic, val);
+}
+
+P_LIB_API ppointer
+p_atomic_pointer_get (const volatile void *atomic)
+{
+#ifdef P_CC_CRAY
+ __builtin_ia32_mfence ();
+#else
+ __sync_synchronize ();
+#endif
+ return (ppointer) *((const volatile psize *) atomic);
+}
+
+P_LIB_API void
+p_atomic_pointer_set (volatile void *atomic,
+ ppointer val)
+{
+ volatile psize *cur_val = (volatile psize *) atomic;
+
+ *cur_val = (psize) val;
+#ifdef P_CC_CRAY
+ __builtin_ia32_mfence ();
+#else
+ __sync_synchronize ();
+#endif
+}
+
+P_LIB_API pboolean
+p_atomic_pointer_compare_and_exchange (volatile void *atomic,
+ ppointer oldval,
+ ppointer newval)
+{
+#ifdef P_CC_CRAY
+ return __sync_val_compare_and_swap ((volatile psize *) atomic,
+ (psize) oldval,
+ (psize) newval) == ((psize) oldval) ? TRUE : FALSE;
+#else
+ return (pboolean) __sync_bool_compare_and_swap ((volatile psize *) atomic,
+ (psize) oldval,
+ (psize) newval);
+#endif
+}
+
+P_LIB_API pssize
+p_atomic_pointer_add (volatile void *atomic,
+ pssize val)
+{
+ return (pssize) __sync_fetch_and_add ((volatile pssize *) atomic, val);
+}
+
+P_LIB_API psize
+p_atomic_pointer_and (volatile void *atomic,
+ psize val)
+{
+ return (psize) __sync_fetch_and_and ((volatile psize *) atomic, val);
+}
+
+P_LIB_API psize
+p_atomic_pointer_or (volatile void *atomic,
+ psize val)
+{
+ return (psize) __sync_fetch_and_or ((volatile psize *) atomic, val);
+}
+
+P_LIB_API psize
+p_atomic_pointer_xor (volatile void *atomic,
+ psize val)
+{
+ return (psize) __sync_fetch_and_xor ((volatile psize *) atomic, val);
+}
+
+P_LIB_API pboolean
+p_atomic_is_lock_free (void)
+{
+ return TRUE;
+}
+
+void
+p_atomic_thread_init (void)
+{
+}
+
+void
+p_atomic_thread_shutdown (void)
+{
+}