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/*
*
* Copyright 2015, Google Inc.
* 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.
* * Neither the name of Google Inc. nor the names of its
* contributors may be used to endorse or promote products derived from
* this software without specific prior written permission.
*
* 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
* OWNER 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 GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H
#define GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H
#include <stddef.h>
typedef struct gpr_stack_lockfree gpr_stack_lockfree;
/* This stack must specify the maximum number of entries to track.
The current implementation only allows up to 65534 entries */
gpr_stack_lockfree *gpr_stack_lockfree_create(size_t entries);
void gpr_stack_lockfree_destroy(gpr_stack_lockfree *stack);
/* Pass in a valid entry number for the next stack entry */
/* Returns 1 if this is the first element on the stack, 0 otherwise */
int gpr_stack_lockfree_push(gpr_stack_lockfree *, int entry);
/* Returns -1 on empty or the actual entry number */
int gpr_stack_lockfree_pop(gpr_stack_lockfree *stack);
#endif /* GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H */
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