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Diffstat (limited to 'src/core/iomgr/udp_server.h')
| -rw-r--r-- | src/core/iomgr/udp_server.h | 85 |
1 files changed, 85 insertions, 0 deletions
diff --git a/src/core/iomgr/udp_server.h b/src/core/iomgr/udp_server.h new file mode 100644 index 0000000000..fcc4ba6e97 --- /dev/null +++ b/src/core/iomgr/udp_server.h @@ -0,0 +1,85 @@ +/* + * + * 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_INTERNAL_CORE_IOMGR_UDP_SERVER_H +#define GRPC_INTERNAL_CORE_IOMGR_UDP_SERVER_H + +#include "src/core/iomgr/endpoint.h" + +/* Forward decl of grpc_udp_server */ +typedef struct grpc_udp_server grpc_udp_server; + +/* New server callback: ep is the newly connected connection */ +typedef void (*grpc_udp_server_cb)(void *arg, grpc_endpoint *ep); + +/* Called when data is available to read from the socket. */ +typedef void (*grpc_udp_server_read_cb)(int fd, + grpc_udp_server_cb new_transport_cb, + void *cb_arg); + +/* Create a server, initially not bound to any ports */ +grpc_udp_server *grpc_udp_server_create(void); + +/* Start listening to bound ports */ +void grpc_udp_server_start(grpc_udp_server *server, grpc_pollset **pollsets, + size_t pollset_count, grpc_udp_server_cb cb, + void *cb_arg); + +int grpc_udp_server_get_fd(grpc_udp_server *s, unsigned 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 void *addr, int addr_len, + grpc_udp_server_read_cb read_cb); + +void grpc_udp_server_destroy(grpc_udp_server *server, + void (*shutdown_done)(void *shutdown_done_arg), + void *shutdown_done_arg); + +/* Write the contents of buffer to the underlying UDP socket. */ +/* +void grpc_udp_server_write(grpc_udp_server *s, + const char *buffer, + int buf_len, + const struct sockaddr* to); + */ + +#endif /* GRPC_INTERNAL_CORE_IOMGR_UDP_SERVER_H */ |