mirror of https://github.com/grpc/grpc.git
Craig Tiller
10 years ago
parent
73f36bdb6c
commit
acf0f07dfc
26 changed files with 495 additions and 87 deletions
@ -0,0 +1,209 @@ |
||||
/*
|
||||
* |
||||
* 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. |
||||
* |
||||
*/ |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
#ifdef GPR_POSIX_SOCKET |
||||
|
||||
#include "src/core/client_config/resolvers/unix_resolver_posix.h" |
||||
|
||||
#include <string.h> |
||||
#include <sys/un.h> |
||||
|
||||
#include <grpc/support/alloc.h> |
||||
#include <grpc/support/string_util.h> |
||||
|
||||
#include "src/core/client_config/lb_policies/pick_first.h" |
||||
#include "src/core/iomgr/resolve_address.h" |
||||
#include "src/core/support/string.h" |
||||
|
||||
typedef struct { |
||||
/** base class: must be first */ |
||||
grpc_resolver base; |
||||
/** refcount */ |
||||
gpr_refcount refs; |
||||
/** subchannel factory */ |
||||
grpc_subchannel_factory *subchannel_factory; |
||||
/** load balancing policy factory */ |
||||
grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, |
||||
size_t num_subchannels); |
||||
|
||||
/** the address that we've 'resolved' */ |
||||
struct sockaddr_un addr; |
||||
int addr_len; |
||||
|
||||
/** mutex guarding the rest of the state */ |
||||
gpr_mu mu; |
||||
/** have we published? */ |
||||
int published; |
||||
/** pending next completion, or NULL */ |
||||
grpc_iomgr_closure *next_completion; |
||||
/** target config address for next completion */ |
||||
grpc_client_config **target_config; |
||||
} unix_resolver; |
||||
|
||||
static void unix_destroy(unix_resolver *r); |
||||
|
||||
static void unix_maybe_finish_next_locked(unix_resolver *r); |
||||
|
||||
static void unix_ref(grpc_resolver *r); |
||||
static void unix_unref(grpc_resolver *r); |
||||
static void unix_shutdown(grpc_resolver *r); |
||||
static void unix_channel_saw_error(grpc_resolver *r, |
||||
struct sockaddr *failing_address, |
||||
int failing_address_len); |
||||
static void unix_next(grpc_resolver *r, grpc_client_config **target_config, |
||||
grpc_iomgr_closure *on_complete); |
||||
|
||||
static const grpc_resolver_vtable unix_resolver_vtable = { |
||||
unix_ref, unix_unref, unix_shutdown, unix_channel_saw_error, unix_next}; |
||||
|
||||
static void unix_ref(grpc_resolver *resolver) { |
||||
unix_resolver *r = (unix_resolver *)resolver; |
||||
gpr_ref(&r->refs); |
||||
} |
||||
|
||||
static void unix_unref(grpc_resolver *resolver) { |
||||
unix_resolver *r = (unix_resolver *)resolver; |
||||
if (gpr_unref(&r->refs)) { |
||||
unix_destroy(r); |
||||
} |
||||
} |
||||
|
||||
static void unix_shutdown(grpc_resolver *resolver) { |
||||
unix_resolver *r = (unix_resolver *)resolver; |
||||
gpr_mu_lock(&r->mu); |
||||
if (r->next_completion != NULL) { |
||||
*r->target_config = NULL; |
||||
/* TODO(ctiller): add delayed callback */ |
||||
grpc_iomgr_add_callback(r->next_completion); |
||||
r->next_completion = NULL; |
||||
} |
||||
gpr_mu_unlock(&r->mu); |
||||
} |
||||
|
||||
static void unix_channel_saw_error(grpc_resolver *resolver, struct sockaddr *sa, |
||||
int len) { |
||||
} |
||||
|
||||
static void unix_next(grpc_resolver *resolver, |
||||
grpc_client_config **target_config, |
||||
grpc_iomgr_closure *on_complete) { |
||||
unix_resolver *r = (unix_resolver *)resolver; |
||||
gpr_mu_lock(&r->mu); |
||||
GPR_ASSERT(!r->next_completion); |
||||
r->next_completion = on_complete; |
||||
r->target_config = target_config; |
||||
unix_maybe_finish_next_locked(r); |
||||
gpr_mu_unlock(&r->mu); |
||||
} |
||||
|
||||
static void unix_maybe_finish_next_locked(unix_resolver *r) { |
||||
grpc_client_config *cfg; |
||||
grpc_lb_policy *lb_policy; |
||||
grpc_subchannel *subchannel; |
||||
grpc_subchannel_args args; |
||||
|
||||
if (r->next_completion != NULL && !r->published) { |
||||
cfg = grpc_client_config_create(); |
||||
memset(&args, 0, sizeof(args)); |
||||
args.addr = (struct sockaddr *) &r->addr; |
||||
args.addr_len = r->addr_len; |
||||
subchannel = grpc_subchannel_factory_create_subchannel(r->subchannel_factory, &args); |
||||
lb_policy = r->lb_policy_factory(&subchannel, 1); |
||||
grpc_client_config_set_lb_policy(cfg, lb_policy); |
||||
GRPC_LB_POLICY_UNREF(lb_policy, "unix"); |
||||
r->published = 1; |
||||
*r->target_config = cfg; |
||||
grpc_iomgr_add_callback(r->next_completion); |
||||
r->next_completion = NULL; |
||||
} |
||||
} |
||||
|
||||
static void unix_destroy(unix_resolver *r) { |
||||
gpr_mu_destroy(&r->mu); |
||||
grpc_subchannel_factory_unref(r->subchannel_factory); |
||||
gpr_free(r); |
||||
} |
||||
|
||||
static grpc_resolver *unix_create( |
||||
grpc_uri *uri, |
||||
grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels, |
||||
size_t num_subchannels), |
||||
grpc_subchannel_factory *subchannel_factory) { |
||||
unix_resolver *r; |
||||
|
||||
if (0 != strcmp(uri->authority, "")) { |
||||
gpr_log(GPR_ERROR, "authority based uri's not supported"); |
||||
return NULL; |
||||
} |
||||
|
||||
r = gpr_malloc(sizeof(unix_resolver)); |
||||
memset(r, 0, sizeof(*r)); |
||||
gpr_ref_init(&r->refs, 1); |
||||
gpr_mu_init(&r->mu); |
||||
r->base.vtable = &unix_resolver_vtable; |
||||
r->subchannel_factory = subchannel_factory; |
||||
r->lb_policy_factory = lb_policy_factory; |
||||
|
||||
r->addr.sun_family = AF_UNIX; |
||||
strcpy(r->addr.sun_path, uri->path); |
||||
r->addr_len = strlen(r->addr.sun_path) + sizeof(r->addr.sun_family) + 1; |
||||
|
||||
grpc_subchannel_factory_ref(subchannel_factory); |
||||
return &r->base; |
||||
} |
||||
|
||||
/*
|
||||
* FACTORY |
||||
*/ |
||||
|
||||
static void unix_factory_ref(grpc_resolver_factory *factory) {} |
||||
|
||||
static void unix_factory_unref(grpc_resolver_factory *factory) {} |
||||
|
||||
static grpc_resolver *unix_factory_create_resolver( |
||||
grpc_resolver_factory *factory, grpc_uri *uri, |
||||
grpc_subchannel_factory *subchannel_factory) { |
||||
return unix_create(uri, grpc_create_pick_first_lb_policy, |
||||
subchannel_factory); |
||||
} |
||||
|
||||
static const grpc_resolver_factory_vtable unix_factory_vtable = { |
||||
unix_factory_ref, unix_factory_unref, unix_factory_create_resolver}; |
||||
static grpc_resolver_factory unix_resolver_factory = {&unix_factory_vtable}; |
||||
|
||||
grpc_resolver_factory *grpc_unix_resolver_factory_create() { |
||||
return &unix_resolver_factory; |
||||
} |
||||
|
||||
#endif |
||||
@ -0,0 +1,44 @@ |
||||
/*
|
||||
* |
||||
* 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_CLIENT_CONFIG_RESOLVERS_UNIX_RESOLVER_H |
||||
#define GRPC_INTERNAL_CORE_CLIENT_CONFIG_RESOLVERS_UNIX_RESOLVER_H |
||||
|
||||
#include <grpc/support/port_platform.h> |
||||
|
||||
#include "src/core/client_config/resolver_factory.h" |
||||
|
||||
/** Create a dns resolver for \a name */ |
||||
grpc_resolver_factory *grpc_unix_resolver_factory_create(void); |
||||
|
||||
#endif /* GRPC_INTERNAL_CORE_CLIENT_CONFIG_RESOLVERS_UNIX_RESOLVER_H */ |
||||
Loading…
Reference in new issue