| /* |
| * |
| * Copyright 2015 gRPC authors. |
| * |
| * Licensed under the Apache License, Version 2.0 (the "License"); |
| * you may not use this file except in compliance with the License. |
| * You may obtain a copy of the License at |
| * |
| * http://www.apache.org/licenses/LICENSE-2.0 |
| * |
| * Unless required by applicable law or agreed to in writing, software |
| * distributed under the License is distributed on an "AS IS" BASIS, |
| * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| * See the License for the specific language governing permissions and |
| * limitations under the License. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H |
| #define GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H |
| |
| #include <stddef.h> |
| |
| #ifdef __cplusplus |
| extern "C" { |
| #endif |
| |
| 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); |
| |
| #ifdef __cplusplus |
| } |
| #endif |
| |
| #endif /* GRPC_CORE_LIB_SUPPORT_STACK_LOCKFREE_H */ |