diff options
author | Mark D. Roth <roth@google.com> | 2018-12-11 07:48:14 -0800 |
---|---|---|
committer | GitHub <noreply@github.com> | 2018-12-11 07:48:14 -0800 |
commit | c5f344deaf84bd074419d42ed4af47e7c9ca6b42 (patch) | |
tree | be24d632efc34338b318b6321ed48741c13103da /src/core/ext/filters/client_channel/resolver | |
parent | 6f675abe85927a2f6f18babc4445b7f210e41d5e (diff) |
Revert "Revert "Allow encoding arbitrary channel args on a per-address basis.""
Diffstat (limited to 'src/core/ext/filters/client_channel/resolver')
11 files changed, 129 insertions, 138 deletions
diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc index 4ebc2c8161..c8425ae336 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/dns_resolver_ares.cc @@ -33,6 +33,7 @@ #include "src/core/ext/filters/client_channel/lb_policy_registry.h" #include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" #include "src/core/ext/filters/client_channel/resolver_registry.h" +#include "src/core/ext/filters/client_channel/server_address.h" #include "src/core/lib/backoff/backoff.h" #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/gpr/env.h" @@ -117,7 +118,7 @@ class AresDnsResolver : public Resolver { /// retry backoff state BackOff backoff_; /// currently resolving addresses - grpc_lb_addresses* lb_addresses_ = nullptr; + UniquePtr<ServerAddressList> addresses_; /// currently resolving service config char* service_config_json_ = nullptr; // has shutdown been initiated @@ -314,13 +315,13 @@ void AresDnsResolver::OnResolvedLocked(void* arg, grpc_error* error) { r->resolving_ = false; gpr_free(r->pending_request_); r->pending_request_ = nullptr; - if (r->lb_addresses_ != nullptr) { + if (r->addresses_ != nullptr) { static const char* args_to_remove[1]; size_t num_args_to_remove = 0; grpc_arg args_to_add[2]; size_t num_args_to_add = 0; args_to_add[num_args_to_add++] = - grpc_lb_addresses_create_channel_arg(r->lb_addresses_); + CreateServerAddressListChannelArg(r->addresses_.get()); char* service_config_string = nullptr; if (r->service_config_json_ != nullptr) { service_config_string = ChooseServiceConfig(r->service_config_json_); @@ -337,7 +338,7 @@ void AresDnsResolver::OnResolvedLocked(void* arg, grpc_error* error) { r->channel_args_, args_to_remove, num_args_to_remove, args_to_add, num_args_to_add); gpr_free(service_config_string); - grpc_lb_addresses_destroy(r->lb_addresses_); + r->addresses_.reset(); // Reset backoff state so that we start from the beginning when the // next request gets triggered. r->backoff_.Reset(); @@ -412,11 +413,10 @@ void AresDnsResolver::StartResolvingLocked() { self.release(); GPR_ASSERT(!resolving_); resolving_ = true; - lb_addresses_ = nullptr; service_config_json_ = nullptr; pending_request_ = grpc_dns_lookup_ares_locked( dns_server_, name_to_resolve_, kDefaultPort, interested_parties_, - &on_resolved_, &lb_addresses_, true /* check_grpclb */, + &on_resolved_, &addresses_, true /* check_grpclb */, request_service_config_ ? &service_config_json_ : nullptr, query_timeout_ms_, combiner()); last_resolution_timestamp_ = grpc_core::ExecCtx::Get()->Now(); diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.cc index f42b1e309d..8abc34c6ed 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.cc @@ -31,6 +31,7 @@ #include <grpc/support/time.h> #include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" #include "src/core/lib/gpr/string.h" +#include "src/core/lib/iomgr/combiner.h" #include "src/core/lib/iomgr/iomgr_internal.h" #include "src/core/lib/iomgr/sockaddr_utils.h" #include "src/core/lib/iomgr/timer.h" diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc index 55715869b6..1b1c2303da 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.cc @@ -37,12 +37,16 @@ #include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_ev_driver.h" #include "src/core/lib/gpr/host_port.h" #include "src/core/lib/gpr/string.h" +#include "src/core/lib/iomgr/combiner.h" #include "src/core/lib/iomgr/error.h" #include "src/core/lib/iomgr/executor.h" #include "src/core/lib/iomgr/iomgr_internal.h" #include "src/core/lib/iomgr/nameser.h" #include "src/core/lib/iomgr/sockaddr_utils.h" +using grpc_core::ServerAddress; +using grpc_core::ServerAddressList; + static gpr_once g_basic_init = GPR_ONCE_INIT; static gpr_mu g_init_mu; @@ -58,7 +62,7 @@ struct grpc_ares_request { /** closure to call when the request completes */ grpc_closure* on_done; /** the pointer to receive the resolved addresses */ - grpc_lb_addresses** lb_addrs_out; + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addresses_out; /** the pointer to receive the service config in JSON */ char** service_config_json_out; /** the evernt driver used by this request */ @@ -87,12 +91,11 @@ typedef struct grpc_ares_hostbyname_request { static void do_basic_init(void) { gpr_mu_init(&g_init_mu); } -static void log_address_sorting_list(grpc_lb_addresses* lb_addrs, +static void log_address_sorting_list(const ServerAddressList& addresses, const char* input_output_str) { - for (size_t i = 0; i < lb_addrs->num_addresses; i++) { + for (size_t i = 0; i < addresses.size(); i++) { char* addr_str; - if (grpc_sockaddr_to_string(&addr_str, &lb_addrs->addresses[i].address, - true)) { + if (grpc_sockaddr_to_string(&addr_str, &addresses[i].address(), true)) { gpr_log(GPR_DEBUG, "c-ares address sorting: %s[%" PRIuPTR "]=%s", input_output_str, i, addr_str); gpr_free(addr_str); @@ -104,29 +107,28 @@ static void log_address_sorting_list(grpc_lb_addresses* lb_addrs, } } -void grpc_cares_wrapper_address_sorting_sort(grpc_lb_addresses* lb_addrs) { +void grpc_cares_wrapper_address_sorting_sort(ServerAddressList* addresses) { if (grpc_trace_cares_address_sorting.enabled()) { - log_address_sorting_list(lb_addrs, "input"); + log_address_sorting_list(*addresses, "input"); } address_sorting_sortable* sortables = (address_sorting_sortable*)gpr_zalloc( - sizeof(address_sorting_sortable) * lb_addrs->num_addresses); - for (size_t i = 0; i < lb_addrs->num_addresses; i++) { - sortables[i].user_data = &lb_addrs->addresses[i]; - memcpy(&sortables[i].dest_addr.addr, &lb_addrs->addresses[i].address.addr, - lb_addrs->addresses[i].address.len); - sortables[i].dest_addr.len = lb_addrs->addresses[i].address.len; + sizeof(address_sorting_sortable) * addresses->size()); + for (size_t i = 0; i < addresses->size(); ++i) { + sortables[i].user_data = &(*addresses)[i]; + memcpy(&sortables[i].dest_addr.addr, &(*addresses)[i].address().addr, + (*addresses)[i].address().len); + sortables[i].dest_addr.len = (*addresses)[i].address().len; } - address_sorting_rfc_6724_sort(sortables, lb_addrs->num_addresses); - grpc_lb_address* sorted_lb_addrs = (grpc_lb_address*)gpr_zalloc( - sizeof(grpc_lb_address) * lb_addrs->num_addresses); - for (size_t i = 0; i < lb_addrs->num_addresses; i++) { - sorted_lb_addrs[i] = *(grpc_lb_address*)sortables[i].user_data; + address_sorting_rfc_6724_sort(sortables, addresses->size()); + ServerAddressList sorted; + sorted.reserve(addresses->size()); + for (size_t i = 0; i < addresses->size(); ++i) { + sorted.emplace_back(*static_cast<ServerAddress*>(sortables[i].user_data)); } gpr_free(sortables); - gpr_free(lb_addrs->addresses); - lb_addrs->addresses = sorted_lb_addrs; + *addresses = std::move(sorted); if (grpc_trace_cares_address_sorting.enabled()) { - log_address_sorting_list(lb_addrs, "output"); + log_address_sorting_list(*addresses, "output"); } } @@ -145,9 +147,9 @@ void grpc_ares_complete_request_locked(grpc_ares_request* r) { /* Invoke on_done callback and destroy the request */ r->ev_driver = nullptr; - grpc_lb_addresses* lb_addrs = *(r->lb_addrs_out); - if (lb_addrs != nullptr) { - grpc_cares_wrapper_address_sorting_sort(lb_addrs); + ServerAddressList* addresses = r->addresses_out->get(); + if (addresses != nullptr) { + grpc_cares_wrapper_address_sorting_sort(addresses); } GRPC_CLOSURE_SCHED(r->on_done, r->error); } @@ -181,33 +183,30 @@ static void on_hostbyname_done_locked(void* arg, int status, int timeouts, GRPC_ERROR_UNREF(r->error); r->error = GRPC_ERROR_NONE; r->success = true; - grpc_lb_addresses** lb_addresses = r->lb_addrs_out; - if (*lb_addresses == nullptr) { - *lb_addresses = grpc_lb_addresses_create(0, nullptr); - } - size_t prev_naddr = (*lb_addresses)->num_addresses; - size_t i; - for (i = 0; hostent->h_addr_list[i] != nullptr; i++) { + if (*r->addresses_out == nullptr) { + *r->addresses_out = grpc_core::MakeUnique<ServerAddressList>(); } - (*lb_addresses)->num_addresses += i; - (*lb_addresses)->addresses = static_cast<grpc_lb_address*>( - gpr_realloc((*lb_addresses)->addresses, - sizeof(grpc_lb_address) * (*lb_addresses)->num_addresses)); - for (i = prev_naddr; i < (*lb_addresses)->num_addresses; i++) { + ServerAddressList& addresses = **r->addresses_out; + for (size_t i = 0; hostent->h_addr_list[i] != nullptr; ++i) { + grpc_core::InlinedVector<grpc_arg, 2> args_to_add; + if (hr->is_balancer) { + args_to_add.emplace_back(grpc_channel_arg_integer_create( + const_cast<char*>(GRPC_ARG_ADDRESS_IS_BALANCER), 1)); + args_to_add.emplace_back(grpc_channel_arg_string_create( + const_cast<char*>(GRPC_ARG_ADDRESS_BALANCER_NAME), hr->host)); + } + grpc_channel_args* args = grpc_channel_args_copy_and_add( + nullptr, args_to_add.data(), args_to_add.size()); switch (hostent->h_addrtype) { case AF_INET6: { size_t addr_len = sizeof(struct sockaddr_in6); struct sockaddr_in6 addr; memset(&addr, 0, addr_len); - memcpy(&addr.sin6_addr, hostent->h_addr_list[i - prev_naddr], + memcpy(&addr.sin6_addr, hostent->h_addr_list[i], sizeof(struct in6_addr)); addr.sin6_family = static_cast<unsigned char>(hostent->h_addrtype); addr.sin6_port = hr->port; - grpc_lb_addresses_set_address( - *lb_addresses, i, &addr, addr_len, - hr->is_balancer /* is_balancer */, - hr->is_balancer ? hr->host : nullptr /* balancer_name */, - nullptr /* user_data */); + addresses.emplace_back(&addr, addr_len, args); char output[INET6_ADDRSTRLEN]; ares_inet_ntop(AF_INET6, &addr.sin6_addr, output, INET6_ADDRSTRLEN); gpr_log(GPR_DEBUG, @@ -220,15 +219,11 @@ static void on_hostbyname_done_locked(void* arg, int status, int timeouts, size_t addr_len = sizeof(struct sockaddr_in); struct sockaddr_in addr; memset(&addr, 0, addr_len); - memcpy(&addr.sin_addr, hostent->h_addr_list[i - prev_naddr], + memcpy(&addr.sin_addr, hostent->h_addr_list[i], sizeof(struct in_addr)); addr.sin_family = static_cast<unsigned char>(hostent->h_addrtype); addr.sin_port = hr->port; - grpc_lb_addresses_set_address( - *lb_addresses, i, &addr, addr_len, - hr->is_balancer /* is_balancer */, - hr->is_balancer ? hr->host : nullptr /* balancer_name */, - nullptr /* user_data */); + addresses.emplace_back(&addr, addr_len, args); char output[INET_ADDRSTRLEN]; ares_inet_ntop(AF_INET, &addr.sin_addr, output, INET_ADDRSTRLEN); gpr_log(GPR_DEBUG, @@ -467,11 +462,10 @@ error_cleanup: gpr_free(port); } -static bool inner_resolve_as_ip_literal_locked(const char* name, - const char* default_port, - grpc_lb_addresses** addrs, - char** host, char** port, - char** hostport) { +static bool inner_resolve_as_ip_literal_locked( + const char* name, const char* default_port, + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs, char** host, + char** port, char** hostport) { gpr_split_host_port(name, host, port); if (*host == nullptr) { gpr_log(GPR_ERROR, @@ -495,18 +489,16 @@ static bool inner_resolve_as_ip_literal_locked(const char* name, if (grpc_parse_ipv4_hostport(*hostport, &addr, false /* log errors */) || grpc_parse_ipv6_hostport(*hostport, &addr, false /* log errors */)) { GPR_ASSERT(*addrs == nullptr); - *addrs = grpc_lb_addresses_create(1, nullptr); - grpc_lb_addresses_set_address( - *addrs, 0, addr.addr, addr.len, false /* is_balancer */, - nullptr /* balancer_name */, nullptr /* user_data */); + *addrs = grpc_core::MakeUnique<ServerAddressList>(); + (*addrs)->emplace_back(addr.addr, addr.len, nullptr /* args */); return true; } return false; } -static bool resolve_as_ip_literal_locked(const char* name, - const char* default_port, - grpc_lb_addresses** addrs) { +static bool resolve_as_ip_literal_locked( + const char* name, const char* default_port, + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs) { char* host = nullptr; char* port = nullptr; char* hostport = nullptr; @@ -521,13 +513,14 @@ static bool resolve_as_ip_literal_locked(const char* name, static grpc_ares_request* grpc_dns_lookup_ares_locked_impl( const char* dns_server, const char* name, const char* default_port, grpc_pollset_set* interested_parties, grpc_closure* on_done, - grpc_lb_addresses** addrs, bool check_grpclb, char** service_config_json, - int query_timeout_ms, grpc_combiner* combiner) { + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs, + bool check_grpclb, char** service_config_json, int query_timeout_ms, + grpc_combiner* combiner) { grpc_ares_request* r = static_cast<grpc_ares_request*>(gpr_zalloc(sizeof(grpc_ares_request))); r->ev_driver = nullptr; r->on_done = on_done; - r->lb_addrs_out = addrs; + r->addresses_out = addrs; r->service_config_json_out = service_config_json; r->success = false; r->error = GRPC_ERROR_NONE; @@ -553,8 +546,8 @@ static grpc_ares_request* grpc_dns_lookup_ares_locked_impl( grpc_ares_request* (*grpc_dns_lookup_ares_locked)( const char* dns_server, const char* name, const char* default_port, grpc_pollset_set* interested_parties, grpc_closure* on_done, - grpc_lb_addresses** addrs, bool check_grpclb, char** service_config_json, - int query_timeout_ms, + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs, + bool check_grpclb, char** service_config_json, int query_timeout_ms, grpc_combiner* combiner) = grpc_dns_lookup_ares_locked_impl; static void grpc_cancel_ares_request_locked_impl(grpc_ares_request* r) { @@ -599,8 +592,8 @@ typedef struct grpc_resolve_address_ares_request { grpc_combiner* combiner; /** the pointer to receive the resolved addresses */ grpc_resolved_addresses** addrs_out; - /** currently resolving lb addresses */ - grpc_lb_addresses* lb_addrs; + /** currently resolving addresses */ + grpc_core::UniquePtr<ServerAddressList> addresses; /** closure to call when the resolve_address_ares request completes */ grpc_closure* on_resolve_address_done; /** a closure wrapping on_resolve_address_done, which should be invoked when @@ -613,7 +606,7 @@ typedef struct grpc_resolve_address_ares_request { /* pollset_set to be driven by */ grpc_pollset_set* interested_parties; /* underlying ares_request that the query is performed on */ - grpc_ares_request* ares_request; + grpc_ares_request* ares_request = nullptr; } grpc_resolve_address_ares_request; static void on_dns_lookup_done_locked(void* arg, grpc_error* error) { @@ -621,25 +614,24 @@ static void on_dns_lookup_done_locked(void* arg, grpc_error* error) { static_cast<grpc_resolve_address_ares_request*>(arg); gpr_free(r->ares_request); grpc_resolved_addresses** resolved_addresses = r->addrs_out; - if (r->lb_addrs == nullptr || r->lb_addrs->num_addresses == 0) { + if (r->addresses == nullptr || r->addresses->empty()) { *resolved_addresses = nullptr; } else { *resolved_addresses = static_cast<grpc_resolved_addresses*>( gpr_zalloc(sizeof(grpc_resolved_addresses))); - (*resolved_addresses)->naddrs = r->lb_addrs->num_addresses; + (*resolved_addresses)->naddrs = r->addresses->size(); (*resolved_addresses)->addrs = static_cast<grpc_resolved_address*>(gpr_zalloc( sizeof(grpc_resolved_address) * (*resolved_addresses)->naddrs)); - for (size_t i = 0; i < (*resolved_addresses)->naddrs; i++) { - GPR_ASSERT(!r->lb_addrs->addresses[i].is_balancer); - memcpy(&(*resolved_addresses)->addrs[i], - &r->lb_addrs->addresses[i].address, sizeof(grpc_resolved_address)); + for (size_t i = 0; i < (*resolved_addresses)->naddrs; ++i) { + GPR_ASSERT(!(*r->addresses)[i].IsBalancer()); + memcpy(&(*resolved_addresses)->addrs[i], &(*r->addresses)[i].address(), + sizeof(grpc_resolved_address)); } } GRPC_CLOSURE_SCHED(r->on_resolve_address_done, GRPC_ERROR_REF(error)); - if (r->lb_addrs != nullptr) grpc_lb_addresses_destroy(r->lb_addrs); GRPC_COMBINER_UNREF(r->combiner, "on_dns_lookup_done_cb"); - gpr_free(r); + grpc_core::Delete(r); } static void grpc_resolve_address_invoke_dns_lookup_ares_locked( @@ -648,7 +640,7 @@ static void grpc_resolve_address_invoke_dns_lookup_ares_locked( static_cast<grpc_resolve_address_ares_request*>(arg); r->ares_request = grpc_dns_lookup_ares_locked( nullptr /* dns_server */, r->name, r->default_port, r->interested_parties, - &r->on_dns_lookup_done_locked, &r->lb_addrs, false /* check_grpclb */, + &r->on_dns_lookup_done_locked, &r->addresses, false /* check_grpclb */, nullptr /* service_config_json */, GRPC_DNS_ARES_DEFAULT_QUERY_TIMEOUT_MS, r->combiner); } @@ -659,8 +651,7 @@ static void grpc_resolve_address_ares_impl(const char* name, grpc_closure* on_done, grpc_resolved_addresses** addrs) { grpc_resolve_address_ares_request* r = - static_cast<grpc_resolve_address_ares_request*>( - gpr_zalloc(sizeof(grpc_resolve_address_ares_request))); + grpc_core::New<grpc_resolve_address_ares_request>(); r->combiner = grpc_combiner_create(); r->addrs_out = addrs; r->on_resolve_address_done = on_done; diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h index 9acef1d0ca..2808250456 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h @@ -21,7 +21,7 @@ #include <grpc/support/port_platform.h> -#include "src/core/ext/filters/client_channel/lb_policy_factory.h" +#include "src/core/ext/filters/client_channel/server_address.h" #include "src/core/lib/iomgr/iomgr.h" #include "src/core/lib/iomgr/polling_entity.h" #include "src/core/lib/iomgr/resolve_address.h" @@ -61,8 +61,9 @@ extern void (*grpc_resolve_address_ares)(const char* name, extern grpc_ares_request* (*grpc_dns_lookup_ares_locked)( const char* dns_server, const char* name, const char* default_port, grpc_pollset_set* interested_parties, grpc_closure* on_done, - grpc_lb_addresses** addresses, bool check_grpclb, - char** service_config_json, int query_timeout_ms, grpc_combiner* combiner); + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addresses, + bool check_grpclb, char** service_config_json, int query_timeout_ms, + grpc_combiner* combiner); /* Cancel the pending grpc_ares_request \a request */ extern void (*grpc_cancel_ares_request_locked)(grpc_ares_request* request); @@ -89,10 +90,12 @@ bool grpc_ares_query_ipv6(); * Returns a bool indicating whether or not such an action was performed. * See https://github.com/grpc/grpc/issues/15158. */ bool grpc_ares_maybe_resolve_localhost_manually_locked( - const char* name, const char* default_port, grpc_lb_addresses** addrs); + const char* name, const char* default_port, + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs); /* Sorts destinations in lb_addrs according to RFC 6724. */ -void grpc_cares_wrapper_address_sorting_sort(grpc_lb_addresses* lb_addrs); +void grpc_cares_wrapper_address_sorting_sort( + grpc_core::ServerAddressList* addresses); #endif /* GRPC_CORE_EXT_FILTERS_CLIENT_CHANNEL_RESOLVER_DNS_C_ARES_GRPC_ARES_WRAPPER_H \ */ diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.cc index fc78b18304..1f4701c999 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_fallback.cc @@ -29,16 +29,17 @@ struct grpc_ares_request { static grpc_ares_request* grpc_dns_lookup_ares_locked_impl( const char* dns_server, const char* name, const char* default_port, grpc_pollset_set* interested_parties, grpc_closure* on_done, - grpc_lb_addresses** addrs, bool check_grpclb, char** service_config_json, - int query_timeout_ms, grpc_combiner* combiner) { + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs, + bool check_grpclb, char** service_config_json, int query_timeout_ms, + grpc_combiner* combiner) { return NULL; } grpc_ares_request* (*grpc_dns_lookup_ares_locked)( const char* dns_server, const char* name, const char* default_port, grpc_pollset_set* interested_parties, grpc_closure* on_done, - grpc_lb_addresses** addrs, bool check_grpclb, char** service_config_json, - int query_timeout_ms, + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs, + bool check_grpclb, char** service_config_json, int query_timeout_ms, grpc_combiner* combiner) = grpc_dns_lookup_ares_locked_impl; static void grpc_cancel_ares_request_locked_impl(grpc_ares_request* r) {} diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_posix.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_posix.cc index 639eec2323..028d844216 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_posix.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_posix.cc @@ -27,7 +27,8 @@ bool grpc_ares_query_ipv6() { return grpc_ipv6_loopback_available(); } bool grpc_ares_maybe_resolve_localhost_manually_locked( - const char* name, const char* default_port, grpc_lb_addresses** addrs) { + const char* name, const char* default_port, + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs) { return false; } diff --git a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_windows.cc b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_windows.cc index 7e34784691..202452f1b2 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_windows.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper_windows.cc @@ -23,9 +23,9 @@ #include <grpc/support/string_util.h> -#include "src/core/ext/filters/client_channel/lb_policy_factory.h" #include "src/core/ext/filters/client_channel/parse_address.h" #include "src/core/ext/filters/client_channel/resolver/dns/c_ares/grpc_ares_wrapper.h" +#include "src/core/ext/filters/client_channel/server_address.h" #include "src/core/lib/gpr/host_port.h" #include "src/core/lib/gpr/string.h" #include "src/core/lib/iomgr/socket_windows.h" @@ -33,8 +33,9 @@ bool grpc_ares_query_ipv6() { return grpc_ipv6_loopback_available(); } static bool inner_maybe_resolve_localhost_manually_locked( - const char* name, const char* default_port, grpc_lb_addresses** addrs, - char** host, char** port) { + const char* name, const char* default_port, + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs, char** host, + char** port) { gpr_split_host_port(name, host, port); if (*host == nullptr) { gpr_log(GPR_ERROR, @@ -55,7 +56,7 @@ static bool inner_maybe_resolve_localhost_manually_locked( } if (gpr_stricmp(*host, "localhost") == 0) { GPR_ASSERT(*addrs == nullptr); - *addrs = grpc_lb_addresses_create(2, nullptr); + *addrs = grpc_core::MakeUnique<grpc_core::ServerAddressList>(); uint16_t numeric_port = grpc_strhtons(*port); // Append the ipv6 loopback address. struct sockaddr_in6 ipv6_loopback_addr; @@ -63,10 +64,8 @@ static bool inner_maybe_resolve_localhost_manually_locked( ((char*)&ipv6_loopback_addr.sin6_addr)[15] = 1; ipv6_loopback_addr.sin6_family = AF_INET6; ipv6_loopback_addr.sin6_port = numeric_port; - grpc_lb_addresses_set_address( - *addrs, 0, &ipv6_loopback_addr, sizeof(ipv6_loopback_addr), - false /* is_balancer */, nullptr /* balancer_name */, - nullptr /* user_data */); + (*addrs)->emplace_back(&ipv6_loopback_addr, sizeof(ipv6_loopback_addr), + nullptr /* args */); // Append the ipv4 loopback address. struct sockaddr_in ipv4_loopback_addr; memset(&ipv4_loopback_addr, 0, sizeof(ipv4_loopback_addr)); @@ -74,19 +73,18 @@ static bool inner_maybe_resolve_localhost_manually_locked( ((char*)&ipv4_loopback_addr.sin_addr)[3] = 0x01; ipv4_loopback_addr.sin_family = AF_INET; ipv4_loopback_addr.sin_port = numeric_port; - grpc_lb_addresses_set_address( - *addrs, 1, &ipv4_loopback_addr, sizeof(ipv4_loopback_addr), - false /* is_balancer */, nullptr /* balancer_name */, - nullptr /* user_data */); + (*addrs)->emplace_back(&ipv4_loopback_addr, sizeof(ipv4_loopback_addr), + nullptr /* args */); // Let the address sorter figure out which one should be tried first. - grpc_cares_wrapper_address_sorting_sort(*addrs); + grpc_cares_wrapper_address_sorting_sort(addrs->get()); return true; } return false; } bool grpc_ares_maybe_resolve_localhost_manually_locked( - const char* name, const char* default_port, grpc_lb_addresses** addrs) { + const char* name, const char* default_port, + grpc_core::UniquePtr<grpc_core::ServerAddressList>* addrs) { char* host = nullptr; char* port = nullptr; bool out = inner_maybe_resolve_localhost_manually_locked(name, default_port, diff --git a/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc b/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc index 65ff1ec1a5..c365f1abfd 100644 --- a/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc +++ b/src/core/ext/filters/client_channel/resolver/dns/native/dns_resolver.cc @@ -26,8 +26,8 @@ #include <grpc/support/string_util.h> #include <grpc/support/time.h> -#include "src/core/ext/filters/client_channel/lb_policy_registry.h" #include "src/core/ext/filters/client_channel/resolver_registry.h" +#include "src/core/ext/filters/client_channel/server_address.h" #include "src/core/lib/backoff/backoff.h" #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/gpr/env.h" @@ -198,18 +198,14 @@ void NativeDnsResolver::OnResolvedLocked(void* arg, grpc_error* error) { grpc_error_set_str(error, GRPC_ERROR_STR_TARGET_ADDRESS, grpc_slice_from_copied_string(r->name_to_resolve_)); if (r->addresses_ != nullptr) { - grpc_lb_addresses* addresses = grpc_lb_addresses_create( - r->addresses_->naddrs, nullptr /* user_data_vtable */); + ServerAddressList addresses; for (size_t i = 0; i < r->addresses_->naddrs; ++i) { - grpc_lb_addresses_set_address( - addresses, i, &r->addresses_->addrs[i].addr, - r->addresses_->addrs[i].len, false /* is_balancer */, - nullptr /* balancer_name */, nullptr /* user_data */); + addresses.emplace_back(&r->addresses_->addrs[i].addr, + r->addresses_->addrs[i].len, nullptr /* args */); } - grpc_arg new_arg = grpc_lb_addresses_create_channel_arg(addresses); + grpc_arg new_arg = CreateServerAddressListChannelArg(&addresses); result = grpc_channel_args_copy_and_add(r->channel_args_, &new_arg, 1); grpc_resolved_addresses_destroy(r->addresses_); - grpc_lb_addresses_destroy(addresses); // Reset backoff state so that we start from the beginning when the // next request gets triggered. r->backoff_.Reset(); diff --git a/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.cc b/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.cc index 3aa690bea4..258339491c 100644 --- a/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.cc +++ b/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.cc @@ -28,12 +28,13 @@ #include <grpc/support/alloc.h> #include <grpc/support/string_util.h> -#include "src/core/ext/filters/client_channel/lb_policy_factory.h" #include "src/core/ext/filters/client_channel/parse_address.h" #include "src/core/ext/filters/client_channel/resolver_registry.h" +#include "src/core/ext/filters/client_channel/server_address.h" #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/gpr/host_port.h" #include "src/core/lib/gpr/string.h" +#include "src/core/lib/gpr/useful.h" #include "src/core/lib/iomgr/closure.h" #include "src/core/lib/iomgr/combiner.h" #include "src/core/lib/iomgr/resolve_address.h" diff --git a/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h b/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h index 7f69059351..d86111c382 100644 --- a/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h +++ b/src/core/ext/filters/client_channel/resolver/fake/fake_resolver.h @@ -19,10 +19,9 @@ #include <grpc/support/port_platform.h> -#include "src/core/ext/filters/client_channel/lb_policy_factory.h" #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/gprpp/ref_counted.h" -#include "src/core/lib/uri/uri_parser.h" +#include "src/core/lib/iomgr/error.h" #define GRPC_ARG_FAKE_RESOLVER_RESPONSE_GENERATOR \ "grpc.fake_resolver.response_generator" diff --git a/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc b/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc index 801734764b..1654747a79 100644 --- a/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc +++ b/src/core/ext/filters/client_channel/resolver/sockaddr/sockaddr_resolver.cc @@ -26,9 +26,9 @@ #include <grpc/support/alloc.h> #include <grpc/support/string_util.h> -#include "src/core/ext/filters/client_channel/lb_policy_factory.h" #include "src/core/ext/filters/client_channel/parse_address.h" #include "src/core/ext/filters/client_channel/resolver_registry.h" +#include "src/core/ext/filters/client_channel/server_address.h" #include "src/core/lib/channel/channel_args.h" #include "src/core/lib/gpr/host_port.h" #include "src/core/lib/gpr/string.h" @@ -45,7 +45,8 @@ namespace { class SockaddrResolver : public Resolver { public: /// Takes ownership of \a addresses. - SockaddrResolver(const ResolverArgs& args, grpc_lb_addresses* addresses); + SockaddrResolver(const ResolverArgs& args, + UniquePtr<ServerAddressList> addresses); void NextLocked(grpc_channel_args** result, grpc_closure* on_complete) override; @@ -58,7 +59,7 @@ class SockaddrResolver : public Resolver { void MaybeFinishNextLocked(); /// the addresses that we've "resolved" - grpc_lb_addresses* addresses_ = nullptr; + UniquePtr<ServerAddressList> addresses_; /// channel args grpc_channel_args* channel_args_ = nullptr; /// have we published? @@ -70,13 +71,12 @@ class SockaddrResolver : public Resolver { }; SockaddrResolver::SockaddrResolver(const ResolverArgs& args, - grpc_lb_addresses* addresses) + UniquePtr<ServerAddressList> addresses) : Resolver(args.combiner), - addresses_(addresses), + addresses_(std::move(addresses)), channel_args_(grpc_channel_args_copy(args.args)) {} SockaddrResolver::~SockaddrResolver() { - grpc_lb_addresses_destroy(addresses_); grpc_channel_args_destroy(channel_args_); } @@ -100,7 +100,7 @@ void SockaddrResolver::ShutdownLocked() { void SockaddrResolver::MaybeFinishNextLocked() { if (next_completion_ != nullptr && !published_) { published_ = true; - grpc_arg arg = grpc_lb_addresses_create_channel_arg(addresses_); + grpc_arg arg = CreateServerAddressListChannelArg(addresses_.get()); *target_result_ = grpc_channel_args_copy_and_add(channel_args_, &arg, 1); GRPC_CLOSURE_SCHED(next_completion_, GRPC_ERROR_NONE); next_completion_ = nullptr; @@ -127,27 +127,27 @@ OrphanablePtr<Resolver> CreateSockaddrResolver( grpc_slice_buffer path_parts; grpc_slice_buffer_init(&path_parts); grpc_slice_split(path_slice, ",", &path_parts); - grpc_lb_addresses* addresses = grpc_lb_addresses_create( - path_parts.count, nullptr /* user_data_vtable */); + auto addresses = MakeUnique<ServerAddressList>(); bool errors_found = false; - for (size_t i = 0; i < addresses->num_addresses; i++) { + for (size_t i = 0; i < path_parts.count; i++) { grpc_uri ith_uri = *args.uri; - char* part_str = grpc_slice_to_c_string(path_parts.slices[i]); - ith_uri.path = part_str; - if (!parse(&ith_uri, &addresses->addresses[i].address)) { + UniquePtr<char> part_str(grpc_slice_to_c_string(path_parts.slices[i])); + ith_uri.path = part_str.get(); + grpc_resolved_address addr; + if (!parse(&ith_uri, &addr)) { errors_found = true; /* GPR_TRUE */ + break; } - gpr_free(part_str); - if (errors_found) break; + addresses->emplace_back(addr, nullptr /* args */); } grpc_slice_buffer_destroy_internal(&path_parts); grpc_slice_unref_internal(path_slice); if (errors_found) { - grpc_lb_addresses_destroy(addresses); return OrphanablePtr<Resolver>(nullptr); } // Instantiate resolver. - return OrphanablePtr<Resolver>(New<SockaddrResolver>(args, addresses)); + return OrphanablePtr<Resolver>( + New<SockaddrResolver>(args, std::move(addresses))); } class IPv4ResolverFactory : public ResolverFactory { |