Craig Tiller
10 years ago
parent
cd329560d3
commit
698d00c60e
18 changed files with 366 additions and 235 deletions
@ -0,0 +1,297 @@ |
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/*
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include <grpc/support/port_platform.h> |
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#include "src/core/client_config/resolvers/sockaddr_resolver.h" |
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#include <stdio.h> |
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#include <string.h> |
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#include <sys/un.h> |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/host_port.h> |
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#include <grpc/support/string_util.h> |
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#include "src/core/client_config/lb_policies/pick_first.h" |
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#include "src/core/iomgr/resolve_address.h" |
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#include "src/core/support/string.h" |
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typedef struct { |
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/** base class: must be first */ |
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grpc_resolver base; |
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/** refcount */ |
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gpr_refcount refs; |
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/** subchannel factory */ |
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grpc_subchannel_factory *subchannel_factory; |
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/** load balancing policy factory */ |
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grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, |
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size_t num_subchannels); |
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/** the address that we've 'resolved' */ |
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struct sockaddr_storage addr; |
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int addr_len; |
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/** mutex guarding the rest of the state */ |
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gpr_mu mu; |
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/** have we published? */ |
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int published; |
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/** pending next completion, or NULL */ |
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grpc_iomgr_closure *next_completion; |
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/** target config address for next completion */ |
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grpc_client_config **target_config; |
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} sockaddr_resolver; |
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static void sockaddr_destroy(grpc_resolver *r); |
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static void sockaddr_maybe_finish_next_locked(sockaddr_resolver *r); |
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static void sockaddr_shutdown(grpc_resolver *r); |
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static void sockaddr_channel_saw_error(grpc_resolver *r, |
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struct sockaddr *failing_address, |
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int failing_address_len); |
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static void sockaddr_next(grpc_resolver *r, grpc_client_config **target_config, |
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grpc_iomgr_closure *on_complete); |
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static const grpc_resolver_vtable sockaddr_resolver_vtable = { |
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sockaddr_destroy, sockaddr_shutdown, sockaddr_channel_saw_error, |
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sockaddr_next}; |
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static void sockaddr_shutdown(grpc_resolver *resolver) { |
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sockaddr_resolver *r = (sockaddr_resolver *)resolver; |
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gpr_mu_lock(&r->mu); |
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if (r->next_completion != NULL) { |
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*r->target_config = NULL; |
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/* TODO(ctiller): add delayed callback */ |
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grpc_iomgr_add_callback(r->next_completion); |
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r->next_completion = NULL; |
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} |
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gpr_mu_unlock(&r->mu); |
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} |
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static void sockaddr_channel_saw_error(grpc_resolver *resolver, |
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struct sockaddr *sa, int len) {} |
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static void sockaddr_next(grpc_resolver *resolver, |
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grpc_client_config **target_config, |
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grpc_iomgr_closure *on_complete) { |
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sockaddr_resolver *r = (sockaddr_resolver *)resolver; |
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gpr_mu_lock(&r->mu); |
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GPR_ASSERT(!r->next_completion); |
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r->next_completion = on_complete; |
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r->target_config = target_config; |
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sockaddr_maybe_finish_next_locked(r); |
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gpr_mu_unlock(&r->mu); |
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} |
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static void sockaddr_maybe_finish_next_locked(sockaddr_resolver *r) { |
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grpc_client_config *cfg; |
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grpc_lb_policy *lb_policy; |
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grpc_subchannel *subchannel; |
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grpc_subchannel_args args; |
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if (r->next_completion != NULL && !r->published) { |
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cfg = grpc_client_config_create(); |
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memset(&args, 0, sizeof(args)); |
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args.addr = (struct sockaddr *)&r->addr; |
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args.addr_len = r->addr_len; |
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subchannel = |
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grpc_subchannel_factory_create_subchannel(r->subchannel_factory, &args); |
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lb_policy = r->lb_policy_factory(&subchannel, 1); |
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grpc_client_config_set_lb_policy(cfg, lb_policy); |
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GRPC_LB_POLICY_UNREF(lb_policy, "unix"); |
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r->published = 1; |
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*r->target_config = cfg; |
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grpc_iomgr_add_callback(r->next_completion); |
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r->next_completion = NULL; |
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} |
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} |
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static void sockaddr_destroy(grpc_resolver *gr) { |
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sockaddr_resolver *r = (sockaddr_resolver *)gr; |
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gpr_mu_destroy(&r->mu); |
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grpc_subchannel_factory_unref(r->subchannel_factory); |
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gpr_free(r); |
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} |
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#ifdef GPR_POSIX_SOCKET |
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static int parse_unix(grpc_uri *uri, struct sockaddr_storage *addr, int *len) { |
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struct sockaddr_un *un = (struct sockaddr_un *)addr; |
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un->sun_family = AF_UNIX; |
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strcpy(un->sun_path, uri->path); |
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*len = strlen(un->sun_path) + sizeof(un->sun_family) + 1; |
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return 1; |
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} |
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#endif |
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static int parse_ipv4(grpc_uri *uri, struct sockaddr_storage *addr, int *len) { |
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const char *host_port = uri->path; |
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char *host; |
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char *port; |
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int port_num; |
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int result = 0; |
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struct sockaddr_in *in = (struct sockaddr_in *)addr; |
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if (*host_port == '/') ++host_port; |
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if (!gpr_split_host_port(host_port, &host, &port)) { |
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return 0; |
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} |
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memset(in, 0, sizeof(*in)); |
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*len = sizeof(*in); |
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in->sin_family = AF_INET; |
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if (inet_aton(host, &in->sin_addr) == 0) { |
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gpr_log(GPR_ERROR, "invalid ipv4 address: '%s'", host); |
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goto done; |
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} |
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if (port != NULL) { |
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if (sscanf(port, "%d", &port_num) != 1 || port_num < 0 || |
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port_num > 65535) { |
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gpr_log(GPR_ERROR, "invalid ipv4 port: '%s'", port); |
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goto done; |
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} |
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in->sin_port = htons(port_num); |
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} else { |
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gpr_log(GPR_ERROR, "no port given for ipv4 scheme"); |
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goto done; |
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} |
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result = 1; |
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done: |
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gpr_free(host); |
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gpr_free(port); |
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return result; |
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} |
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static int parse_ipv6(grpc_uri *uri, struct sockaddr_storage *addr, int *len) { |
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const char *host_port = uri->path; |
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char *host; |
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char *port; |
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int port_num; |
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int result = 0; |
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struct sockaddr_in6 *in6 = (struct sockaddr_in6 *)addr; |
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if (*host_port == '/') ++host_port; |
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if (!gpr_split_host_port(host_port, &host, &port)) { |
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return 0; |
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} |
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memset(in6, 0, sizeof(*in6)); |
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*len = sizeof(*in6); |
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in6->sin6_family = AF_INET6; |
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if (inet_pton(AF_INET6, host, &in6->sin6_addr) == 0) { |
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gpr_log(GPR_ERROR, "invalid ipv6 address: '%s'", host); |
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goto done; |
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} |
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if (port != NULL) { |
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if (sscanf(port, "%d", &port_num) != 1 || port_num < 0 || |
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port_num > 65535) { |
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gpr_log(GPR_ERROR, "invalid ipv6 port: '%s'", port); |
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goto done; |
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} |
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in6->sin6_port = htons(port_num); |
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} else { |
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gpr_log(GPR_ERROR, "no port given for ipv6 scheme"); |
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goto done; |
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} |
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result = 1; |
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done: |
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gpr_free(host); |
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gpr_free(port); |
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return result; |
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} |
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static grpc_resolver *sockaddr_create( |
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grpc_uri *uri, |
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grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, |
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size_t num_subchannels), |
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grpc_subchannel_factory *subchannel_factory, |
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int parse(grpc_uri *uri, struct sockaddr_storage *dst, int *len)) { |
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sockaddr_resolver *r; |
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if (0 != strcmp(uri->authority, "")) { |
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gpr_log(GPR_ERROR, "authority based uri's not supported"); |
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return NULL; |
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} |
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r = gpr_malloc(sizeof(sockaddr_resolver)); |
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memset(r, 0, sizeof(*r)); |
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if (!parse(uri, &r->addr, &r->addr_len)) { |
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gpr_free(r); |
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return NULL; |
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} |
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gpr_ref_init(&r->refs, 1); |
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gpr_mu_init(&r->mu); |
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grpc_resolver_init(&r->base, &sockaddr_resolver_vtable); |
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r->subchannel_factory = subchannel_factory; |
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r->lb_policy_factory = lb_policy_factory; |
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grpc_subchannel_factory_ref(subchannel_factory); |
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return &r->base; |
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} |
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/*
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* FACTORY |
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*/ |
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static void sockaddr_factory_ref(grpc_resolver_factory *factory) {} |
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static void sockaddr_factory_unref(grpc_resolver_factory *factory) {} |
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#define DECL_FACTORY(name) \ |
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static grpc_resolver *name##_factory_create_resolver( \
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grpc_resolver_factory *factory, grpc_uri *uri, \
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grpc_subchannel_factory *subchannel_factory) { \
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return sockaddr_create(uri, grpc_create_pick_first_lb_policy, \
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subchannel_factory, parse_##name); \
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} \
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static const grpc_resolver_factory_vtable name##_factory_vtable = { \
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sockaddr_factory_ref, sockaddr_factory_unref, \
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name##_factory_create_resolver}; \
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static grpc_resolver_factory name##_resolver_factory = { \
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&name##_factory_vtable}; \
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grpc_resolver_factory *grpc_##name##_resolver_factory_create() { \
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return &name##_resolver_factory; \
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} |
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#ifdef GPR_POSIX_SOCKET |
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DECL_FACTORY(unix) |
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#endif |
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DECL_FACTORY(ipv4) |
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DECL_FACTORY(ipv6) |
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@ -1,195 +0,0 @@ |
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/*
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* |
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* Copyright 2015, Google Inc. |
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* All rights reserved. |
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* |
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* Redistribution and use in source and binary forms, with or without |
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* modification, are permitted provided that the following conditions are |
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* met: |
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* |
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* * Redistributions of source code must retain the above copyright |
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* notice, this list of conditions and the following disclaimer. |
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* * Redistributions in binary form must reproduce the above |
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* copyright notice, this list of conditions and the following disclaimer |
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* in the documentation and/or other materials provided with the |
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* distribution. |
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* * Neither the name of Google Inc. nor the names of its |
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* contributors may be used to endorse or promote products derived from |
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* this software without specific prior written permission. |
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* |
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
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* |
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*/ |
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#include <grpc/support/port_platform.h> |
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#ifdef GPR_POSIX_SOCKET |
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#include "src/core/client_config/resolvers/unix_resolver_posix.h" |
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#include <string.h> |
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#include <sys/un.h> |
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#include <grpc/support/alloc.h> |
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#include <grpc/support/string_util.h> |
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#include "src/core/client_config/lb_policies/pick_first.h" |
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#include "src/core/iomgr/resolve_address.h" |
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#include "src/core/support/string.h" |
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typedef struct { |
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/** base class: must be first */ |
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grpc_resolver base; |
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/** refcount */ |
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gpr_refcount refs; |
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/** subchannel factory */ |
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grpc_subchannel_factory *subchannel_factory; |
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/** load balancing policy factory */ |
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grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, |
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size_t num_subchannels); |
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/** the address that we've 'resolved' */ |
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struct sockaddr_un addr; |
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int addr_len; |
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/** mutex guarding the rest of the state */ |
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gpr_mu mu; |
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/** have we published? */ |
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int published; |
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/** pending next completion, or NULL */ |
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grpc_iomgr_closure *next_completion; |
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/** target config address for next completion */ |
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grpc_client_config **target_config; |
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} unix_resolver; |
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static void unix_destroy(grpc_resolver *r); |
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static void unix_maybe_finish_next_locked(unix_resolver *r); |
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static void unix_shutdown(grpc_resolver *r); |
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static void unix_channel_saw_error(grpc_resolver *r, |
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struct sockaddr *failing_address, |
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int failing_address_len); |
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static void unix_next(grpc_resolver *r, grpc_client_config **target_config, |
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grpc_iomgr_closure *on_complete); |
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static const grpc_resolver_vtable unix_resolver_vtable = { |
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unix_destroy, unix_shutdown, unix_channel_saw_error, unix_next}; |
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static void unix_shutdown(grpc_resolver *resolver) { |
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unix_resolver *r = (unix_resolver *)resolver; |
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gpr_mu_lock(&r->mu); |
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if (r->next_completion != NULL) { |
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*r->target_config = NULL; |
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/* TODO(ctiller): add delayed callback */ |
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grpc_iomgr_add_callback(r->next_completion); |
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r->next_completion = NULL; |
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} |
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gpr_mu_unlock(&r->mu); |
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} |
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static void unix_channel_saw_error(grpc_resolver *resolver, struct sockaddr *sa, |
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int len) {} |
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static void unix_next(grpc_resolver *resolver, |
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grpc_client_config **target_config, |
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grpc_iomgr_closure *on_complete) { |
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unix_resolver *r = (unix_resolver *)resolver; |
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gpr_mu_lock(&r->mu); |
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GPR_ASSERT(!r->next_completion); |
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r->next_completion = on_complete; |
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r->target_config = target_config; |
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unix_maybe_finish_next_locked(r); |
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gpr_mu_unlock(&r->mu); |
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} |
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static void unix_maybe_finish_next_locked(unix_resolver *r) { |
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grpc_client_config *cfg; |
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grpc_lb_policy *lb_policy; |
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grpc_subchannel *subchannel; |
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grpc_subchannel_args args; |
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if (r->next_completion != NULL && !r->published) { |
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cfg = grpc_client_config_create(); |
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memset(&args, 0, sizeof(args)); |
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args.addr = (struct sockaddr *)&r->addr; |
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args.addr_len = r->addr_len; |
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subchannel = |
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grpc_subchannel_factory_create_subchannel(r->subchannel_factory, &args); |
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lb_policy = r->lb_policy_factory(&subchannel, 1); |
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grpc_client_config_set_lb_policy(cfg, lb_policy); |
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GRPC_LB_POLICY_UNREF(lb_policy, "unix"); |
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r->published = 1; |
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*r->target_config = cfg; |
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grpc_iomgr_add_callback(r->next_completion); |
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r->next_completion = NULL; |
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} |
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} |
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static void unix_destroy(grpc_resolver *gr) { |
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unix_resolver *r = (unix_resolver *)gr; |
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gpr_mu_destroy(&r->mu); |
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grpc_subchannel_factory_unref(r->subchannel_factory); |
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gpr_free(r); |
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} |
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static grpc_resolver *unix_create( |
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grpc_uri *uri, |
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grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, |
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size_t num_subchannels), |
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grpc_subchannel_factory *subchannel_factory) { |
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unix_resolver *r; |
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if (0 != strcmp(uri->authority, "")) { |
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gpr_log(GPR_ERROR, "authority based uri's not supported"); |
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return NULL; |
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} |
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r = gpr_malloc(sizeof(unix_resolver)); |
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memset(r, 0, sizeof(*r)); |
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gpr_ref_init(&r->refs, 1); |
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gpr_mu_init(&r->mu); |
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grpc_resolver_init(&r->base, &unix_resolver_vtable); |
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r->subchannel_factory = subchannel_factory; |
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r->lb_policy_factory = lb_policy_factory; |
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r->addr.sun_family = AF_UNIX; |
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strcpy(r->addr.sun_path, uri->path); |
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r->addr_len = strlen(r->addr.sun_path) + sizeof(r->addr.sun_family) + 1; |
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grpc_subchannel_factory_ref(subchannel_factory); |
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return &r->base; |
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} |
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/*
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* FACTORY |
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*/ |
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|
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static void unix_factory_ref(grpc_resolver_factory *factory) {} |
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static void unix_factory_unref(grpc_resolver_factory *factory) {} |
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static grpc_resolver *unix_factory_create_resolver( |
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grpc_resolver_factory *factory, grpc_uri *uri, |
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grpc_subchannel_factory *subchannel_factory) { |
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return unix_create(uri, grpc_create_pick_first_lb_policy, subchannel_factory); |
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} |
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|
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static const grpc_resolver_factory_vtable unix_factory_vtable = { |
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unix_factory_ref, unix_factory_unref, unix_factory_create_resolver}; |
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static grpc_resolver_factory unix_resolver_factory = {&unix_factory_vtable}; |
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|
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grpc_resolver_factory *grpc_unix_resolver_factory_create() { |
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return &unix_resolver_factory; |
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} |
||||
|
||||
#endif |
||||
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