| /* |
| * |
| * Copyright 2016, 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_IOMGR_RESOURCE_QUOTA_H |
| #define GRPC_CORE_LIB_IOMGR_RESOURCE_QUOTA_H |
| |
| #include <grpc/grpc.h> |
| |
| #include "src/core/lib/iomgr/exec_ctx.h" |
| |
| extern int grpc_resource_quota_trace; |
| |
| grpc_resource_quota *grpc_resource_quota_internal_ref( |
| grpc_resource_quota *resource_quota); |
| void grpc_resource_quota_internal_unref(grpc_exec_ctx *exec_ctx, |
| grpc_resource_quota *resource_quota); |
| grpc_resource_quota *grpc_resource_quota_from_channel_args( |
| const grpc_channel_args *channel_args); |
| |
| typedef enum { |
| GRPC_BULIST_AWAITING_ALLOCATION, |
| GRPC_BULIST_NON_EMPTY_FREE_POOL, |
| GRPC_BULIST_RECLAIMER_BENIGN, |
| GRPC_BULIST_RECLAIMER_DESTRUCTIVE, |
| GRPC_BULIST_COUNT |
| } grpc_bulist; |
| |
| typedef struct grpc_resource_user grpc_resource_user; |
| |
| typedef struct { |
| grpc_resource_user *next; |
| grpc_resource_user *prev; |
| } grpc_resource_user_link; |
| |
| struct grpc_resource_user { |
| grpc_resource_quota *resource_quota; |
| |
| grpc_closure allocate_closure; |
| grpc_closure add_to_free_pool_closure; |
| |
| #ifndef NDEBUG |
| void *asan_canary; |
| #endif |
| |
| gpr_mu mu; |
| int64_t allocated; |
| int64_t free_pool; |
| grpc_closure_list on_allocated; |
| bool allocating; |
| bool added_to_free_pool; |
| |
| grpc_closure *reclaimers[2]; |
| grpc_closure post_reclaimer_closure[2]; |
| |
| grpc_closure destroy_closure; |
| gpr_atm on_done_destroy_closure; |
| |
| grpc_resource_user_link links[GRPC_BULIST_COUNT]; |
| |
| char *name; |
| }; |
| |
| void grpc_resource_user_init(grpc_resource_user *resource_user, |
| grpc_resource_quota *resource_quota, |
| const char *name); |
| void grpc_resource_user_shutdown(grpc_exec_ctx *exec_ctx, |
| grpc_resource_user *resource_user, |
| grpc_closure *on_done); |
| void grpc_resource_user_destroy(grpc_exec_ctx *exec_ctx, |
| grpc_resource_user *resource_user); |
| |
| void grpc_resource_user_alloc(grpc_exec_ctx *exec_ctx, |
| grpc_resource_user *resource_user, size_t size, |
| grpc_closure *optional_on_done); |
| void grpc_resource_user_free(grpc_exec_ctx *exec_ctx, |
| grpc_resource_user *resource_user, size_t size); |
| void grpc_resource_user_post_reclaimer(grpc_exec_ctx *exec_ctx, |
| grpc_resource_user *resource_user, |
| bool destructive, grpc_closure *closure); |
| void grpc_resource_user_finish_reclaimation(grpc_exec_ctx *exec_ctx, |
| grpc_resource_user *resource_user); |
| |
| typedef struct grpc_resource_user_slice_allocator { |
| grpc_closure on_allocated; |
| grpc_closure on_done; |
| size_t length; |
| size_t count; |
| gpr_slice_buffer *dest; |
| grpc_resource_user *resource_user; |
| } grpc_resource_user_slice_allocator; |
| |
| void grpc_resource_user_slice_allocator_init( |
| grpc_resource_user_slice_allocator *slice_allocator, |
| grpc_resource_user *resource_user, grpc_iomgr_cb_func cb, void *p); |
| |
| void grpc_resource_user_alloc_slices( |
| grpc_exec_ctx *exec_ctx, |
| grpc_resource_user_slice_allocator *slice_allocator, size_t length, |
| size_t count, gpr_slice_buffer *dest); |
| |
| #endif /* GRPC_CORE_LIB_IOMGR_RESOURCE_QUOTA_H */ |