diff options
Diffstat (limited to 'src/core/lib/iomgr/resolve_address.h')
| -rw-r--r-- | src/core/lib/iomgr/resolve_address.h | 72 |
1 files changed, 72 insertions, 0 deletions
diff --git a/src/core/lib/iomgr/resolve_address.h b/src/core/lib/iomgr/resolve_address.h new file mode 100644 index 0000000000..f748288685 --- /dev/null +++ b/src/core/lib/iomgr/resolve_address.h @@ -0,0 +1,72 @@ +/* + * + * Copyright 2015-2016, 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_RESOLVE_ADDRESS_H +#define GRPC_CORE_LIB_IOMGR_RESOLVE_ADDRESS_H + +#include <stddef.h> +#include "src/core/lib/iomgr/exec_ctx.h" +#include "src/core/lib/iomgr/iomgr.h" + +#define GRPC_MAX_SOCKADDR_SIZE 128 + +typedef struct { + char addr[GRPC_MAX_SOCKADDR_SIZE]; + size_t len; +} grpc_resolved_address; + +typedef struct { + size_t naddrs; + grpc_resolved_address *addrs; +} grpc_resolved_addresses; + +/* Async result callback: + On success: addresses is the result, and the callee must call + grpc_resolved_addresses_destroy when it's done with them + On failure: addresses is NULL */ +typedef void (*grpc_resolve_cb)(grpc_exec_ctx *exec_ctx, void *arg, + grpc_resolved_addresses *addresses); +/* Asynchronously resolve addr. Use default_port if a port isn't designated + in addr, otherwise use the port in addr. */ +/* TODO(ctiller): add a timeout here */ +void grpc_resolve_address(const char *addr, const char *default_port, + grpc_resolve_cb cb, void *arg); +/* Destroy resolved addresses */ +void grpc_resolved_addresses_destroy(grpc_resolved_addresses *addresses); + +/* Resolve addr in a blocking fashion. Returns NULL on failure. On success, + result must be freed with grpc_resolved_addresses_destroy. */ +extern grpc_resolved_addresses *(*grpc_blocking_resolve_address)( + const char *name, const char *default_port); + +#endif /* GRPC_CORE_LIB_IOMGR_RESOLVE_ADDRESS_H */ |