freebsd-dev/contrib/ntp/lib/isc/socket_api.c

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/*
* Copyright (C) 2009, 2011, 2012 Internet Systems Consortium, Inc. ("ISC")
*
* Permission to use, copy, modify, and/or distribute this software for any
* purpose with or without fee is hereby granted, provided that the above
* copyright notice and this permission notice appear in all copies.
*
* THE SOFTWARE IS PROVIDED "AS IS" AND ISC DISCLAIMS ALL WARRANTIES WITH
* REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY
* AND FITNESS. IN NO EVENT SHALL ISC BE LIABLE FOR ANY SPECIAL, DIRECT,
* INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM
* LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
* OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
* PERFORMANCE OF THIS SOFTWARE.
*/
/* $Id$ */
#include <config.h>
#include <isc/app.h>
#include <isc/magic.h>
#include <isc/mutex.h>
#include <isc/once.h>
#include <isc/socket.h>
#include <isc/util.h>
static isc_mutex_t createlock;
static isc_once_t once = ISC_ONCE_INIT;
static isc_socketmgrcreatefunc_t socketmgr_createfunc = NULL;
static void
initialize(void) {
RUNTIME_CHECK(isc_mutex_init(&createlock) == ISC_R_SUCCESS);
}
isc_result_t
isc_socket_register(isc_socketmgrcreatefunc_t createfunc) {
isc_result_t result = ISC_R_SUCCESS;
RUNTIME_CHECK(isc_once_do(&once, initialize) == ISC_R_SUCCESS);
LOCK(&createlock);
if (socketmgr_createfunc == NULL)
socketmgr_createfunc = createfunc;
else
result = ISC_R_EXISTS;
UNLOCK(&createlock);
return (result);
}
isc_result_t
isc_socketmgr_createinctx(isc_mem_t *mctx, isc_appctx_t *actx,
isc_socketmgr_t **managerp)
{
isc_result_t result;
LOCK(&createlock);
REQUIRE(socketmgr_createfunc != NULL);
result = (*socketmgr_createfunc)(mctx, managerp);
UNLOCK(&createlock);
if (result == ISC_R_SUCCESS)
isc_appctx_setsocketmgr(actx, *managerp);
return (result);
}
isc_result_t
isc_socketmgr_create(isc_mem_t *mctx, isc_socketmgr_t **managerp) {
isc_result_t result;
LOCK(&createlock);
REQUIRE(socketmgr_createfunc != NULL);
result = (*socketmgr_createfunc)(mctx, managerp);
UNLOCK(&createlock);
return (result);
}
void
isc_socketmgr_destroy(isc_socketmgr_t **managerp) {
REQUIRE(managerp != NULL && ISCAPI_SOCKETMGR_VALID(*managerp));
(*managerp)->methods->destroy(managerp);
ENSURE(*managerp == NULL);
}
isc_result_t
isc_socket_create(isc_socketmgr_t *manager, int pf, isc_sockettype_t type,
isc_socket_t **socketp)
{
REQUIRE(ISCAPI_SOCKETMGR_VALID(manager));
return (manager->methods->socketcreate(manager, pf, type, socketp));
}
void
isc_socket_attach(isc_socket_t *sock, isc_socket_t **socketp) {
REQUIRE(ISCAPI_SOCKET_VALID(sock));
REQUIRE(socketp != NULL && *socketp == NULL);
sock->methods->attach(sock, socketp);
ENSURE(*socketp == sock);
}
void
isc_socket_detach(isc_socket_t **socketp) {
REQUIRE(socketp != NULL && ISCAPI_SOCKET_VALID(*socketp));
(*socketp)->methods->detach(socketp);
ENSURE(*socketp == NULL);
}
isc_result_t
isc_socket_bind(isc_socket_t *sock, isc_sockaddr_t *sockaddr,
unsigned int options)
{
REQUIRE(ISCAPI_SOCKET_VALID(sock));
return (sock->methods->bind(sock, sockaddr, options));
}
isc_result_t
isc_socket_sendto(isc_socket_t *sock, isc_region_t *region, isc_task_t *task,
isc_taskaction_t action, const void *arg,
isc_sockaddr_t *address, struct in6_pktinfo *pktinfo)
{
REQUIRE(ISCAPI_SOCKET_VALID(sock));
return (sock->methods->sendto(sock, region, task, action, arg, address,
pktinfo));
}
isc_result_t
isc_socket_connect(isc_socket_t *sock, isc_sockaddr_t *addr, isc_task_t *task,
isc_taskaction_t action, const void *arg)
{
REQUIRE(ISCAPI_SOCKET_VALID(sock));
return (sock->methods->connect(sock, addr, task, action, arg));
}
isc_result_t
isc_socket_recv(isc_socket_t *sock, isc_region_t *region, unsigned int minimum,
isc_task_t *task, isc_taskaction_t action, const void *arg)
{
REQUIRE(ISCAPI_SOCKET_VALID(sock));
return (sock->methods->recv(sock, region, minimum, task, action, arg));
}
void
isc_socket_cancel(isc_socket_t *sock, isc_task_t *task, unsigned int how) {
REQUIRE(ISCAPI_SOCKET_VALID(sock));
sock->methods->cancel(sock, task, how);
}
isc_result_t
isc_socket_getsockname(isc_socket_t *sock, isc_sockaddr_t *addressp) {
REQUIRE(ISCAPI_SOCKET_VALID(sock));
return (sock->methods->getsockname(sock, addressp));
}
void
isc_socket_ipv6only(isc_socket_t *sock, isc_boolean_t yes) {
REQUIRE(ISCAPI_SOCKET_VALID(sock));
sock->methods->ipv6only(sock, yes);
}
isc_sockettype_t
isc_socket_gettype(isc_socket_t *sock) {
REQUIRE(ISCAPI_SOCKET_VALID(sock));
return (sock->methods->gettype(sock));
}
void
isc_socket_setname(isc_socket_t *socket, const char *name, void *tag) {
REQUIRE(ISCAPI_SOCKET_VALID(socket));
UNUSED(socket); /* in case REQUIRE() is empty */
UNUSED(name);
UNUSED(tag);
}
isc_result_t
isc_socket_fdwatchcreate(isc_socketmgr_t *manager, int fd, int flags,
isc_sockfdwatch_t callback, void *cbarg,
isc_task_t *task, isc_socket_t **socketp)
{
REQUIRE(ISCAPI_SOCKETMGR_VALID(manager));
return (manager->methods->fdwatchcreate(manager, fd, flags,
callback, cbarg, task,
socketp));
}
isc_result_t
isc_socket_fdwatchpoke(isc_socket_t *sock, int flags)
{
REQUIRE(ISCAPI_SOCKET_VALID(sock));
return(sock->methods->fdwatchpoke(sock, flags));
}
isc_result_t
isc_socket_dup(isc_socket_t *sock, isc_socket_t **socketp) {
REQUIRE(ISCAPI_SOCKET_VALID(sock));
REQUIRE(socketp != NULL && *socketp == NULL);
return(sock->methods->dup(sock, socketp));
}
int
isc_socket_getfd(isc_socket_t *sock) {
REQUIRE(ISCAPI_SOCKET_VALID(sock));
return(sock->methods->getfd(sock));
}