Adding upstream version 0~20240209.upstream/0_20240209

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 84 insertions, 0 deletions

diff --git a/lfqueue/lfqueue.h b/lfqueue/lfqueue.h
new file mode 100644
index 0000000..1eafc7b
--- /dev/null
+++ b/lfqueue/lfqueue.h
@@ -0,0 +1,84 @@
+/*
+*
+* BSD 2-Clause License
+*
+* Copyright (c) 2018, Taymindis Woon
+* All rights reserved.
+*
+* Redistribution and use in source and binary forms, with or without
+* modification, are permitted provided that the following conditions are met:
+*
+* * Redistributions of source code must retain the above copyright notice, this
+*   list of conditions and the following disclaimer.
+*
+* * Redistributions in binary form must reproduce the above copyright notice,
+*   this list of conditions and the following disclaimer in the documentation
+*   and/or other materials provided with the distribution.
+*
+* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
+* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
+* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
+* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
+* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+*
+*/
+
+#ifndef LFQUEUE_H
+#define LFQUEUE_H
+
+#include <stdlib.h>
+#include <stdint.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef struct lfqueue_cas_node_s lfqueue_cas_node_t;
+typedef void* (*lfqueue_malloc_fn)(void*, size_t);
+typedef void (*lfqueue_free_fn)(void*, void*);
+
+#if defined __GNUC__ || defined __CYGWIN__ || defined __MINGW32__ || defined __APPLE__
+#define lfq_bool_t int
+#else
+#ifdef _WIN64
+#define lfq_bool_t int64_t
+#else
+#define lfq_bool_t int
+#endif
+#endif
+
+typedef struct {
+	lfqueue_cas_node_t *head, *tail, *root_free, *move_free;
+	volatile size_t size;
+	volatile lfq_bool_t in_free_mode;
+	lfqueue_malloc_fn _malloc;
+	lfqueue_free_fn _free;
+	void *pl;
+} lfqueue_t;
+
+extern int   lfqueue_init(lfqueue_t *lfqueue);
+extern int   lfqueue_init_mf(lfqueue_t *lfqueue, void* pl, lfqueue_malloc_fn lfqueue_malloc, lfqueue_free_fn lfqueue_free);
+extern int   lfqueue_enq(lfqueue_t *lfqueue, void *value);
+extern void* lfqueue_deq(lfqueue_t *lfqueue);
+extern void* lfqueue_single_deq(lfqueue_t *lfqueue);
+
+/** loop until value been dequeue, it sleeps 1ms if not found to reduce cpu high usage **/
+extern void* lfqueue_deq_must(lfqueue_t *lfqueue);
+extern void* lfqueue_single_deq_must(lfqueue_t *lfqueue);
+
+extern void lfqueue_destroy(lfqueue_t *lfqueue);
+extern size_t lfqueue_size(lfqueue_t *lfqueue);
+extern void lfqueue_sleep(unsigned int milisec);
+
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif
+