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-rw-r--r--src/core/client_config/lb_policies/pick_first.c21
-rw-r--r--src/core/client_config/lb_policies/pick_first.h9
-rw-r--r--src/core/client_config/lb_policy_factory.c49
-rw-r--r--src/core/client_config/lb_policy_factory.h70
-rw-r--r--src/core/client_config/lb_policy_registry.c89
-rw-r--r--src/core/client_config/lb_policy_registry.h55
-rw-r--r--src/core/client_config/resolvers/dns_resolver.c19
-rw-r--r--src/core/client_config/resolvers/sockaddr_resolver.c19
-rw-r--r--src/core/client_config/resolvers/zookeeper_resolver.c20
-rw-r--r--src/core/surface/init.c4
10 files changed, 317 insertions, 38 deletions
diff --git a/src/core/client_config/lb_policies/pick_first.c b/src/core/client_config/lb_policies/pick_first.c
index 5ae2e0ea52..1c5d058d97 100644
--- a/src/core/client_config/lb_policies/pick_first.c
+++ b/src/core/client_config/lb_policies/pick_first.c
@@ -31,6 +31,7 @@
*
*/
+#include "src/core/client_config/lb_policy_factory.h"
#include "src/core/client_config/lb_policies/pick_first.h"
#include <string.h>
@@ -314,8 +315,13 @@ static const grpc_lb_policy_vtable pick_first_lb_policy_vtable = {
pf_check_connectivity,
pf_notify_on_state_change};
-grpc_lb_policy *grpc_create_pick_first_lb_policy(grpc_subchannel **subchannels,
- size_t num_subchannels) {
+static void pick_first_factory_ref(grpc_lb_policy_factory *factory) {}
+
+static void pick_first_factory_unref(grpc_lb_policy_factory *factory) {}
+
+static grpc_lb_policy *create_pick_first(grpc_lb_policy_factory *factory,
+ grpc_subchannel **subchannels,
+ size_t num_subchannels) {
pick_first_lb_policy *p = gpr_malloc(sizeof(*p));
GPR_ASSERT(num_subchannels);
memset(p, 0, sizeof(*p));
@@ -330,3 +336,14 @@ grpc_lb_policy *grpc_create_pick_first_lb_policy(grpc_subchannel **subchannels,
gpr_mu_init(&p->mu);
return &p->base;
}
+
+static const grpc_lb_policy_factory_vtable pick_first_factory_vtable = {
+ pick_first_factory_ref, pick_first_factory_unref, create_pick_first,
+ "pick_first"};
+
+static grpc_lb_policy_factory pick_first_lb_policy_factory = {
+ &pick_first_factory_vtable};
+
+grpc_lb_policy_factory *grpc_pick_first_lb_factory_create() {
+ return &pick_first_lb_policy_factory;
+}
diff --git a/src/core/client_config/lb_policies/pick_first.h b/src/core/client_config/lb_policies/pick_first.h
index 31394985e5..3ca53ad42a 100644
--- a/src/core/client_config/lb_policies/pick_first.h
+++ b/src/core/client_config/lb_policies/pick_first.h
@@ -34,11 +34,10 @@
#ifndef GRPC_INTERNAL_CORE_CLIENT_CONFIG_PICK_FIRST_H
#define GRPC_INTERNAL_CORE_CLIENT_CONFIG_PICK_FIRST_H
-#include "src/core/client_config/lb_policy.h"
+#include "src/core/client_config/lb_policy_factory.h"
-/** Returns a load balancing policy instance that picks up the first subchannel
- * from \a subchannels to succesfully connect */
-grpc_lb_policy *grpc_create_pick_first_lb_policy(grpc_subchannel **subchannels,
- size_t num_subchannels);
+/** Returns a load balancing factory for the pick first policy, which picks up
+ * the first subchannel from \a subchannels to succesfully connect */
+grpc_lb_policy_factory *grpc_pick_first_lb_factory_create();
#endif
diff --git a/src/core/client_config/lb_policy_factory.c b/src/core/client_config/lb_policy_factory.c
new file mode 100644
index 0000000000..533f973cea
--- /dev/null
+++ b/src/core/client_config/lb_policy_factory.c
@@ -0,0 +1,49 @@
+/*
+ *
+ * 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 "src/core/client_config/lb_policy_factory.h"
+
+void grpc_lb_policy_factory_ref(grpc_lb_policy_factory *factory) {
+ factory->vtable->ref(factory);
+}
+void grpc_lb_policy_factory_unref(grpc_lb_policy_factory *factory) {
+ factory->vtable->unref(factory);
+}
+
+grpc_lb_policy *grpc_lb_policy_factory_create_lb_policy(
+ grpc_lb_policy_factory *factory, grpc_subchannel **subchannels,
+ size_t num_subchannels) {
+ if (factory == NULL) return NULL;
+ return factory->vtable->create_lb_policy(factory, subchannels,
+ num_subchannels);
+}
diff --git a/src/core/client_config/lb_policy_factory.h b/src/core/client_config/lb_policy_factory.h
new file mode 100644
index 0000000000..ba057648f7
--- /dev/null
+++ b/src/core/client_config/lb_policy_factory.h
@@ -0,0 +1,70 @@
+/*
+ *
+ * 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_LB_POLICY_FACTORY_H
+#define GRPC_INTERNAL_CORE_CLIENT_CONFIG_LB_POLICY_FACTORY_H
+
+#include "src/core/client_config/lb_policy.h"
+#include "src/core/client_config/subchannel.h"
+
+typedef struct grpc_lb_policy_factory grpc_lb_policy_factory;
+typedef struct grpc_lb_policy_factory_vtable grpc_lb_policy_factory_vtable;
+
+/** grpc_lb_policy provides grpc_client_config objects to grpc_channel
+ objects */
+struct grpc_lb_policy_factory {
+ const grpc_lb_policy_factory_vtable *vtable;
+};
+
+struct grpc_lb_policy_factory_vtable {
+ void (*ref)(grpc_lb_policy_factory *factory);
+ void (*unref)(grpc_lb_policy_factory *factory);
+
+ /** Implementation of grpc_lb_policy_factory_create_lb_policy */
+ grpc_lb_policy *(*create_lb_policy)(grpc_lb_policy_factory *factory,
+ grpc_subchannel **subchannels,
+ size_t num_subchannels);
+
+ /** Name for the LB policy this factory implements */
+ const char *name;
+};
+
+void grpc_lb_policy_factory_ref(grpc_lb_policy_factory *factory);
+void grpc_lb_policy_factory_unref(grpc_lb_policy_factory *factory);
+
+/** Create a lb_policy instance. */
+grpc_lb_policy *grpc_lb_policy_factory_create_lb_policy(
+ grpc_lb_policy_factory *factory, grpc_subchannel **subchannels,
+ size_t num_subchannels);
+
+#endif /* GRPC_INTERNAL_CORE_CONFIG_LB_POLICY_FACTORY_H */
diff --git a/src/core/client_config/lb_policy_registry.c b/src/core/client_config/lb_policy_registry.c
new file mode 100644
index 0000000000..0a3ebbe4b3
--- /dev/null
+++ b/src/core/client_config/lb_policy_registry.c
@@ -0,0 +1,89 @@
+/*
+ *
+ * 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 "src/core/client_config/lb_policy_registry.h"
+
+#include <string.h>
+
+#define MAX_POLICIES 10
+
+static grpc_lb_policy_factory *g_all_of_the_lb_policies[MAX_POLICIES];
+static int g_number_of_lb_policies = 0;
+
+static grpc_lb_policy_factory *g_default_lb_policy_factory;
+
+void grpc_lb_policy_registry_init(grpc_lb_policy_factory *default_factory) {
+ g_number_of_lb_policies = 0;
+ g_default_lb_policy_factory = default_factory;
+}
+
+void grpc_lb_policy_registry_shutdown(void) {
+ int i;
+ for (i = 0; i < g_number_of_lb_policies; i++) {
+ grpc_lb_policy_factory_unref(g_all_of_the_lb_policies[i]);
+ }
+}
+
+void grpc_register_lb_policy(grpc_lb_policy_factory *factory) {
+ int i;
+ for (i = 0; i < g_number_of_lb_policies; i++) {
+ GPR_ASSERT(0 != strcmp(factory->vtable->name,
+ g_all_of_the_lb_policies[i]->vtable->name));
+ }
+ GPR_ASSERT(g_number_of_lb_policies != MAX_POLICIES);
+ grpc_lb_policy_factory_ref(factory);
+ g_all_of_the_lb_policies[g_number_of_lb_policies++] = factory;
+}
+
+static grpc_lb_policy_factory *lookup_factory(const char* name) {
+ int i;
+
+ if (name == NULL) return NULL;
+
+ for (i = 0; i < g_number_of_lb_policies; i++) {
+ if (0 == strcmp(name, g_all_of_the_lb_policies[i]->vtable->name)) {
+ return g_all_of_the_lb_policies[i];
+ }
+ }
+
+ return NULL;
+}
+
+grpc_lb_policy *grpc_lb_policy_create(const char *name,
+ grpc_subchannel **subchannels,
+ size_t num_subchannels) {
+ grpc_lb_policy_factory *factory = lookup_factory(name);
+ grpc_lb_policy *lb_policy = grpc_lb_policy_factory_create_lb_policy(
+ factory, subchannels, num_subchannels);
+ return lb_policy;
+}
diff --git a/src/core/client_config/lb_policy_registry.h b/src/core/client_config/lb_policy_registry.h
new file mode 100644
index 0000000000..75114d9f02
--- /dev/null
+++ b/src/core/client_config/lb_policy_registry.h
@@ -0,0 +1,55 @@
+/*
+ *
+ * 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_LB_POLICY_REGISTRY_H
+#define GRPC_INTERNAL_CORE_CLIENT_CONFIG_LB_POLICY_REGISTRY_H
+
+#include "src/core/client_config/lb_policy_factory.h"
+
+/** Initialize the registry and set \a default_factory as the factory to be
+ * returned when no name is provided in a lookup */
+void grpc_lb_policy_registry_init(grpc_lb_policy_factory *default_factory);
+void grpc_lb_policy_registry_shutdown(void);
+
+/** Register a LB policy factory. */
+void grpc_register_lb_policy(grpc_lb_policy_factory *factory);
+
+/** Create a \a grpc_lb_policy instance.
+ *
+ * If \a name is NULL, the default factory from \a grpc_lb_policy_registry_init
+ * will be returned. */
+grpc_lb_policy *grpc_lb_policy_create(const char *name,
+ grpc_subchannel **subchannels,
+ size_t num_subchannels);
+
+#endif /* GRPC_INTERNAL_CORE_CLIENT_CONFIG_LB_POLICY_REGISTRY_H */
diff --git a/src/core/client_config/resolvers/dns_resolver.c b/src/core/client_config/resolvers/dns_resolver.c
index 84643c464a..830f3f5286 100644
--- a/src/core/client_config/resolvers/dns_resolver.c
+++ b/src/core/client_config/resolvers/dns_resolver.c
@@ -39,7 +39,7 @@
#include <grpc/support/host_port.h>
#include <grpc/support/string_util.h>
-#include "src/core/client_config/lb_policies/pick_first.h"
+#include "src/core/client_config/lb_policy_registry.h"
#include "src/core/client_config/subchannel_factory_decorators/add_channel_arg.h"
#include "src/core/iomgr/resolve_address.h"
#include "src/core/support/string.h"
@@ -55,9 +55,8 @@ typedef struct {
char *default_port;
/** subchannel factory */
grpc_subchannel_factory *subchannel_factory;
- /** load balancing policy factory */
- grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels,
- size_t num_subchannels);
+ /** load balancing policy name */
+ char *lb_policy_name;
/** mutex guarding the rest of the state */
gpr_mu mu;
@@ -144,7 +143,8 @@ static void dns_on_resolved(void *arg, grpc_resolved_addresses *addresses) {
subchannels[i] = grpc_subchannel_factory_create_subchannel(
r->subchannel_factory, &args);
}
- lb_policy = r->lb_policy_factory(subchannels, addresses->naddrs);
+ lb_policy = grpc_lb_policy_create(r->lb_policy_name, subchannels,
+ addresses->naddrs);
grpc_client_config_set_lb_policy(config, lb_policy);
GRPC_LB_POLICY_UNREF(lb_policy, "construction");
grpc_resolved_addresses_destroy(addresses);
@@ -193,13 +193,13 @@ static void dns_destroy(grpc_resolver *gr) {
grpc_subchannel_factory_unref(r->subchannel_factory);
gpr_free(r->name);
gpr_free(r->default_port);
+ gpr_free(r->lb_policy_name);
gpr_free(r);
}
static grpc_resolver *dns_create(
grpc_uri *uri, const char *default_port,
- grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels,
- size_t num_subchannels),
+ const char* lb_policy_name,
grpc_subchannel_factory *subchannel_factory) {
dns_resolver *r;
const char *path = uri->path;
@@ -220,7 +220,7 @@ static grpc_resolver *dns_create(
r->default_port = gpr_strdup(default_port);
r->subchannel_factory = subchannel_factory;
grpc_subchannel_factory_ref(subchannel_factory);
- r->lb_policy_factory = lb_policy_factory;
+ r->lb_policy_name = gpr_strdup(lb_policy_name);
return &r->base;
}
@@ -235,8 +235,7 @@ static void dns_factory_unref(grpc_resolver_factory *factory) {}
static grpc_resolver *dns_factory_create_resolver(
grpc_resolver_factory *factory, grpc_uri *uri,
grpc_subchannel_factory *subchannel_factory) {
- return dns_create(uri, "https", grpc_create_pick_first_lb_policy,
- subchannel_factory);
+ return dns_create(uri, "https", "pick_first", subchannel_factory);
}
char *dns_factory_get_default_host_name(grpc_resolver_factory *factory,
diff --git a/src/core/client_config/resolvers/sockaddr_resolver.c b/src/core/client_config/resolvers/sockaddr_resolver.c
index 0d8540a566..1bff1d7abf 100644
--- a/src/core/client_config/resolvers/sockaddr_resolver.c
+++ b/src/core/client_config/resolvers/sockaddr_resolver.c
@@ -45,7 +45,7 @@
#include <grpc/support/host_port.h>
#include <grpc/support/string_util.h>
-#include "src/core/client_config/lb_policies/pick_first.h"
+#include "src/core/client_config/lb_policy_registry.h"
#include "src/core/iomgr/resolve_address.h"
#include "src/core/support/string.h"
@@ -56,9 +56,8 @@ typedef struct {
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);
+ /** load balancing policy name */
+ char *lb_policy_name;
/** the addresses that we've 'resolved' */
struct sockaddr_storage *addrs;
@@ -136,7 +135,8 @@ static void sockaddr_maybe_finish_next_locked(sockaddr_resolver *r) {
subchannels[i] = grpc_subchannel_factory_create_subchannel(
r->subchannel_factory, &args);
}
- lb_policy = r->lb_policy_factory(subchannels, r->num_addrs);
+ lb_policy =
+ grpc_lb_policy_create(r->lb_policy_name, subchannels, r->num_addrs);
gpr_free(subchannels);
grpc_client_config_set_lb_policy(cfg, lb_policy);
GRPC_LB_POLICY_UNREF(lb_policy, "unix");
@@ -153,6 +153,7 @@ static void sockaddr_destroy(grpc_resolver *gr) {
grpc_subchannel_factory_unref(r->subchannel_factory);
gpr_free(r->addrs);
gpr_free(r->addrs_len);
+ gpr_free(r->lb_policy_name);
gpr_free(r);
}
@@ -271,9 +272,7 @@ done:
static void do_nothing(void *ignored) {}
static grpc_resolver *sockaddr_create(
- grpc_uri *uri,
- grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels,
- size_t num_subchannels),
+ grpc_uri *uri, const char *lb_policy_name,
grpc_subchannel_factory *subchannel_factory,
int parse(grpc_uri *uri, struct sockaddr_storage *dst, int *len)) {
size_t i;
@@ -320,7 +319,7 @@ static grpc_resolver *sockaddr_create(
gpr_mu_init(&r->mu);
grpc_resolver_init(&r->base, &sockaddr_resolver_vtable);
r->subchannel_factory = subchannel_factory;
- r->lb_policy_factory = lb_policy_factory;
+ r->lb_policy_name = gpr_strdup(lb_policy_name);
grpc_subchannel_factory_ref(subchannel_factory);
return &r->base;
@@ -338,7 +337,7 @@ static void sockaddr_factory_unref(grpc_resolver_factory *factory) {}
static grpc_resolver *name##_factory_create_resolver( \
grpc_resolver_factory *factory, grpc_uri *uri, \
grpc_subchannel_factory *subchannel_factory) { \
- return sockaddr_create(uri, grpc_create_pick_first_lb_policy, \
+ return sockaddr_create(uri, "pick_first", \
subchannel_factory, parse_##name); \
} \
static const grpc_resolver_factory_vtable name##_factory_vtable = { \
diff --git a/src/core/client_config/resolvers/zookeeper_resolver.c b/src/core/client_config/resolvers/zookeeper_resolver.c
index da399f9954..8b89100245 100644
--- a/src/core/client_config/resolvers/zookeeper_resolver.c
+++ b/src/core/client_config/resolvers/zookeeper_resolver.c
@@ -41,7 +41,7 @@
#include <grpc/grpc_zookeeper.h>
#include <zookeeper/zookeeper.h>
-#include "src/core/client_config/lb_policies/pick_first.h"
+#include "src/core/client_config/lb_policy_registry.h"
#include "src/core/client_config/resolver_registry.h"
#include "src/core/iomgr/resolve_address.h"
#include "src/core/support/string.h"
@@ -59,9 +59,8 @@ typedef struct {
char *name;
/** subchannel factory */
grpc_subchannel_factory *subchannel_factory;
- /** load balancing policy factory */
- grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels,
- size_t num_subchannels);
+ /** load balancing policy name */
+ char *lb_policy_name;
/** mutex guarding the rest of the state */
gpr_mu mu;
@@ -192,7 +191,8 @@ static void zookeeper_on_resolved(void *arg,
subchannels[i] = grpc_subchannel_factory_create_subchannel(
r->subchannel_factory, &args);
}
- lb_policy = r->lb_policy_factory(subchannels, addresses->naddrs);
+ lb_policy =
+ grpc_lb_policy_create(r->lb_policy_name, subchannels, addresses->naddrs);
grpc_client_config_set_lb_policy(config, lb_policy);
GRPC_LB_POLICY_UNREF(lb_policy, "construction");
grpc_resolved_addresses_destroy(addresses);
@@ -420,13 +420,12 @@ static void zookeeper_destroy(grpc_resolver *gr) {
}
grpc_subchannel_factory_unref(r->subchannel_factory);
gpr_free(r->name);
+ gpr_free(r->lb_policy_name);
gpr_free(r);
}
static grpc_resolver *zookeeper_create(
- grpc_uri *uri,
- grpc_lb_policy *(*lb_policy_factory)(grpc_subchannel **subchannels,
- size_t num_subchannels),
+ grpc_uri *uri, const char *lb_policy_name,
grpc_subchannel_factory *subchannel_factory) {
zookeeper_resolver *r;
size_t length;
@@ -451,7 +450,7 @@ static grpc_resolver *zookeeper_create(
r->name = gpr_strdup(path);
r->subchannel_factory = subchannel_factory;
- r->lb_policy_factory = lb_policy_factory;
+ r->lb_policy_name = gpr_strdup(lb_policy_name);
grpc_subchannel_factory_ref(subchannel_factory);
/** Initializes zookeeper client */
@@ -490,8 +489,7 @@ static char *zookeeper_factory_get_default_hostname(
static grpc_resolver *zookeeper_factory_create_resolver(
grpc_resolver_factory *factory, grpc_uri *uri,
grpc_subchannel_factory *subchannel_factory) {
- return zookeeper_create(uri, grpc_create_pick_first_lb_policy,
- subchannel_factory);
+ return zookeeper_create(uri, "pick_first", subchannel_factory);
}
static const grpc_resolver_factory_vtable zookeeper_factory_vtable = {
diff --git a/src/core/surface/init.c b/src/core/surface/init.c
index 0d48cd42d7..03bd026a42 100644
--- a/src/core/surface/init.c
+++ b/src/core/surface/init.c
@@ -40,6 +40,8 @@
#include <grpc/support/alloc.h>
#include <grpc/support/time.h>
#include "src/core/channel/channel_stack.h"
+#include "src/core/client_config/lb_policy_registry.h"
+#include "src/core/client_config/lb_policies/pick_first.h"
#include "src/core/client_config/resolver_registry.h"
#include "src/core/client_config/resolvers/dns_resolver.h"
#include "src/core/client_config/resolvers/sockaddr_resolver.h"
@@ -85,6 +87,8 @@ void grpc_init(void) {
gpr_mu_lock(&g_init_mu);
if (++g_initializations == 1) {
gpr_time_init();
+ grpc_lb_policy_registry_init(grpc_pick_first_lb_factory_create());
+ grpc_register_lb_policy(grpc_pick_first_lb_factory_create());
grpc_resolver_registry_init("dns:///");
grpc_register_resolver_type(grpc_dns_resolver_factory_create());
grpc_register_resolver_type(grpc_ipv4_resolver_factory_create());
generated by cgit v1.2.3 (git 2.39.1) at 2024-12-29 01:59:13 +0000