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Diffstat (limited to 'src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h')
| -rw-r--r-- | src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h | 63 |
1 files changed, 63 insertions, 0 deletions
diff --git a/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h b/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h new file mode 100644 index 0000000000..ab00a26b36 --- /dev/null +++ b/src/core/ext/resolver/dns/c_ares/grpc_ares_wrapper.h @@ -0,0 +1,63 @@ +/* + * + * Copyright 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_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H +#define GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H + +#include "src/core/lib/iomgr/exec_ctx.h" +#include "src/core/lib/iomgr/iomgr.h" +#include "src/core/lib/iomgr/polling_entity.h" +#include "src/core/lib/iomgr/resolve_address.h" + +/* Asynchronously resolve addr. Use \a default_port if a port isn't designated + in addr, otherwise use the port in addr. grpc_ares_init() must be called at + least once before this function. \a on_done may be called directly in this + function without being scheduled with \a exec_ctx, it must not try to acquire + locks that are being held by the caller. */ +extern void (*grpc_resolve_address_ares)(grpc_exec_ctx *exec_ctx, + const char *addr, + const char *default_port, + grpc_pollset_set *interested_parties, + grpc_closure *on_done, + grpc_resolved_addresses **addresses); + +/* Initialize gRPC ares wrapper. Must be called at least once before + grpc_resolve_address_ares(). */ +grpc_error *grpc_ares_init(void); + +/* Uninitialized gRPC ares wrapper. If there was more than one previous call to + grpc_ares_init(), this function uninitializes the gRPC ares wrapper only if + it has been called the same number of times as grpc_ares_init(). */ +void grpc_ares_cleanup(void); + +#endif /* GRPC_CORE_EXT_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H */ |