| /* |
| * |
| * 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. |
| * |
| */ |
| |
| #ifndef GRPC_CORE_LIB_IOMGR_UDP_SERVER_H |
| #define GRPC_CORE_LIB_IOMGR_UDP_SERVER_H |
| |
| #include "src/core/lib/iomgr/endpoint.h" |
| #include "src/core/lib/iomgr/ev_posix.h" |
| #include "src/core/lib/iomgr/resolve_address.h" |
| |
| /* Forward decl of struct grpc_server */ |
| /* This is not typedef'ed to avoid a typedef-redefinition error */ |
| struct grpc_server; |
| |
| /* Forward decl of grpc_udp_server */ |
| typedef struct grpc_udp_server grpc_udp_server; |
| |
| /* Called when data is available to read from the socket. */ |
| typedef void (*grpc_udp_server_read_cb)(grpc_exec_ctx *exec_ctx, grpc_fd *emfd, |
| void *user_data); |
| |
| /* Called when the socket is writeable. */ |
| typedef void (*grpc_udp_server_write_cb)(grpc_exec_ctx *exec_ctx, grpc_fd *emfd, |
| void *user_data); |
| |
| /* Called when the grpc_fd is about to be orphaned (and the FD closed). */ |
| typedef void (*grpc_udp_server_orphan_cb)(grpc_exec_ctx *exec_ctx, |
| grpc_fd *emfd, void *user_data); |
| |
| /* Create a server, initially not bound to any ports */ |
| grpc_udp_server *grpc_udp_server_create(void); |
| |
| /* Start listening to bound ports. user_data is passed to callbacks. */ |
| void grpc_udp_server_start(grpc_exec_ctx *exec_ctx, grpc_udp_server *udp_server, |
| grpc_pollset **pollsets, size_t pollset_count, |
| void *user_data); |
| |
| int grpc_udp_server_get_fd(grpc_udp_server *s, unsigned port_index); |
| |
| /* Add a port to the server, returning port number on success, or negative |
| on failure. |
| |
| The :: and 0.0.0.0 wildcard addresses are treated identically, accepting |
| both IPv4 and IPv6 connections, but :: is the preferred style. This usually |
| creates one socket, but possibly two on systems which support IPv6, |
| but not dualstack sockets. */ |
| |
| /* TODO(ctiller): deprecate this, and make grpc_udp_server_add_ports to handle |
| all of the multiple socket port matching logic in one place */ |
| int grpc_udp_server_add_port(grpc_udp_server *s, |
| const grpc_resolved_address *addr, |
| grpc_udp_server_read_cb read_cb, |
| grpc_udp_server_write_cb write_cb, |
| grpc_udp_server_orphan_cb orphan_cb); |
| |
| void grpc_udp_server_destroy(grpc_exec_ctx *exec_ctx, grpc_udp_server *server, |
| grpc_closure *on_done); |
| |
| #endif /* GRPC_CORE_LIB_IOMGR_UDP_SERVER_H */ |