| /* |
| * |
| * 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. |
| * |
| */ |
| |
| #include <grpc/support/port_platform.h> |
| |
| #ifdef GPR_POSIX_SOCKET |
| |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <grpc/support/alloc.h> |
| #include <grpc/support/useful.h> |
| |
| #include "src/core/iomgr/pollset_set.h" |
| |
| void grpc_pollset_set_init(grpc_pollset_set *pollset_set) { |
| memset(pollset_set, 0, sizeof(*pollset_set)); |
| gpr_mu_init(&pollset_set->mu); |
| } |
| |
| void grpc_pollset_set_destroy(grpc_pollset_set *pollset_set) { |
| size_t i; |
| gpr_mu_destroy(&pollset_set->mu); |
| for (i = 0; i < pollset_set->fd_count; i++) { |
| GRPC_FD_UNREF(pollset_set->fds[i], "pollset_set"); |
| } |
| gpr_free(pollset_set->pollsets); |
| gpr_free(pollset_set->pollset_sets); |
| gpr_free(pollset_set->fds); |
| } |
| |
| void grpc_pollset_set_add_pollset(grpc_exec_ctx *exec_ctx, |
| grpc_pollset_set *pollset_set, |
| grpc_pollset *pollset) { |
| size_t i, j; |
| gpr_mu_lock(&pollset_set->mu); |
| if (pollset_set->pollset_count == pollset_set->pollset_capacity) { |
| pollset_set->pollset_capacity = |
| GPR_MAX(8, 2 * pollset_set->pollset_capacity); |
| pollset_set->pollsets = |
| gpr_realloc(pollset_set->pollsets, pollset_set->pollset_capacity * |
| sizeof(*pollset_set->pollsets)); |
| } |
| pollset_set->pollsets[pollset_set->pollset_count++] = pollset; |
| for (i = 0, j = 0; i < pollset_set->fd_count; i++) { |
| if (grpc_fd_is_orphaned(pollset_set->fds[i])) { |
| GRPC_FD_UNREF(pollset_set->fds[i], "pollset_set"); |
| } else { |
| grpc_pollset_add_fd(exec_ctx, pollset, pollset_set->fds[i]); |
| pollset_set->fds[j++] = pollset_set->fds[i]; |
| } |
| } |
| pollset_set->fd_count = j; |
| gpr_mu_unlock(&pollset_set->mu); |
| } |
| |
| void grpc_pollset_set_del_pollset(grpc_exec_ctx *exec_ctx, |
| grpc_pollset_set *pollset_set, |
| grpc_pollset *pollset) { |
| size_t i; |
| gpr_mu_lock(&pollset_set->mu); |
| for (i = 0; i < pollset_set->pollset_count; i++) { |
| if (pollset_set->pollsets[i] == pollset) { |
| pollset_set->pollset_count--; |
| GPR_SWAP(grpc_pollset *, pollset_set->pollsets[i], |
| pollset_set->pollsets[pollset_set->pollset_count]); |
| break; |
| } |
| } |
| gpr_mu_unlock(&pollset_set->mu); |
| } |
| |
| void grpc_pollset_set_add_pollset_set(grpc_exec_ctx *exec_ctx, |
| grpc_pollset_set *bag, |
| grpc_pollset_set *item) { |
| size_t i, j; |
| gpr_mu_lock(&bag->mu); |
| if (bag->pollset_set_count == bag->pollset_set_capacity) { |
| bag->pollset_set_capacity = GPR_MAX(8, 2 * bag->pollset_set_capacity); |
| bag->pollset_sets = |
| gpr_realloc(bag->pollset_sets, |
| bag->pollset_set_capacity * sizeof(*bag->pollset_sets)); |
| } |
| bag->pollset_sets[bag->pollset_set_count++] = item; |
| for (i = 0, j = 0; i < bag->fd_count; i++) { |
| if (grpc_fd_is_orphaned(bag->fds[i])) { |
| GRPC_FD_UNREF(bag->fds[i], "pollset_set"); |
| } else { |
| grpc_pollset_set_add_fd(exec_ctx, item, bag->fds[i]); |
| bag->fds[j++] = bag->fds[i]; |
| } |
| } |
| bag->fd_count = j; |
| gpr_mu_unlock(&bag->mu); |
| } |
| |
| void grpc_pollset_set_del_pollset_set(grpc_exec_ctx *exec_ctx, |
| grpc_pollset_set *bag, |
| grpc_pollset_set *item) { |
| size_t i; |
| gpr_mu_lock(&bag->mu); |
| for (i = 0; i < bag->pollset_set_count; i++) { |
| if (bag->pollset_sets[i] == item) { |
| bag->pollset_set_count--; |
| GPR_SWAP(grpc_pollset_set *, bag->pollset_sets[i], |
| bag->pollset_sets[bag->pollset_set_count]); |
| break; |
| } |
| } |
| gpr_mu_unlock(&bag->mu); |
| } |
| |
| void grpc_pollset_set_add_fd(grpc_exec_ctx *exec_ctx, |
| grpc_pollset_set *pollset_set, grpc_fd *fd) { |
| size_t i; |
| gpr_mu_lock(&pollset_set->mu); |
| if (pollset_set->fd_count == pollset_set->fd_capacity) { |
| pollset_set->fd_capacity = GPR_MAX(8, 2 * pollset_set->fd_capacity); |
| pollset_set->fds = gpr_realloc( |
| pollset_set->fds, pollset_set->fd_capacity * sizeof(*pollset_set->fds)); |
| } |
| GRPC_FD_REF(fd, "pollset_set"); |
| pollset_set->fds[pollset_set->fd_count++] = fd; |
| for (i = 0; i < pollset_set->pollset_count; i++) { |
| grpc_pollset_add_fd(exec_ctx, pollset_set->pollsets[i], fd); |
| } |
| for (i = 0; i < pollset_set->pollset_set_count; i++) { |
| grpc_pollset_set_add_fd(exec_ctx, pollset_set->pollset_sets[i], fd); |
| } |
| gpr_mu_unlock(&pollset_set->mu); |
| } |
| |
| void grpc_pollset_set_del_fd(grpc_exec_ctx *exec_ctx, |
| grpc_pollset_set *pollset_set, grpc_fd *fd) { |
| size_t i; |
| gpr_mu_lock(&pollset_set->mu); |
| for (i = 0; i < pollset_set->fd_count; i++) { |
| if (pollset_set->fds[i] == fd) { |
| pollset_set->fd_count--; |
| GPR_SWAP(grpc_fd *, pollset_set->fds[i], |
| pollset_set->fds[pollset_set->fd_count]); |
| GRPC_FD_UNREF(fd, "pollset_set"); |
| break; |
| } |
| } |
| for (i = 0; i < pollset_set->pollset_set_count; i++) { |
| grpc_pollset_set_del_fd(exec_ctx, pollset_set->pollset_sets[i], fd); |
| } |
| gpr_mu_unlock(&pollset_set->mu); |
| } |
| |
| #endif /* GPR_POSIX_SOCKET */ |