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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.
*
*/
#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");
}
gpr_free(pollset_set->pollsets);
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");
} 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_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);
}
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;
}
}
gpr_mu_unlock(&pollset_set->mu);
}
#endif /* GPR_POSIX_SOCKET */
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