Stage #1 of core breakup: move everything under lib

1 files changed, 0 insertions, 309 deletions

diff --git a/src/core/client_config/resolvers/dns_resolver.c b/src/core/client_config/resolvers/dns_resolver.c
deleted file mode 100644
index 2b2ee97e12..0000000000
--- a/src/core/client_config/resolvers/dns_resolver.c
+++ /dev/null
@@ -1,309 +0,0 @@
-/*
- *
- * Copyright 2015-2016, Google Inc.
- * All rights reserved.
- *
- * Redistribution and use in source and binary forms, with or without
- * modification, are permitted provided that the following conditions are
- * met:
- *
- *     * Redistributions of source code must retain the above copyright
- * notice, this list of conditions and the following disclaimer.
- *     * Redistributions in binary form must reproduce the above
- * copyright notice, this list of conditions and the following disclaimer
- * in the documentation and/or other materials provided with the
- * distribution.
- *     * Neither the name of Google Inc. nor the names of its
- * contributors may be used to endorse or promote products derived from
- * this software without specific prior written permission.
- *
- * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
- * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
- * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
- * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
- * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
- * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
- * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
- * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
- * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
- * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
- * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
- *
- */
-
-#include "src/core/client_config/resolvers/dns_resolver.h"
-
-#include <string.h>
-
-#include <grpc/support/alloc.h>
-#include <grpc/support/host_port.h>
-#include <grpc/support/string_util.h>
-
-#include "src/core/client_config/lb_policy_registry.h"
-#include "src/core/iomgr/resolve_address.h"
-#include "src/core/iomgr/timer.h"
-#include "src/core/support/backoff.h"
-#include "src/core/support/string.h"
-
-#define BACKOFF_MULTIPLIER 1.6
-#define BACKOFF_JITTER 0.2
-#define BACKOFF_MIN_SECONDS 1
-#define BACKOFF_MAX_SECONDS 120
-
-typedef struct {
-  /** base class: must be first */
-  grpc_resolver base;
-  /** refcount */
-  gpr_refcount refs;
-  /** name to resolve */
-  char *name;
-  /** default port to use */
-  char *default_port;
-  /** subchannel factory */
-  grpc_subchannel_factory *subchannel_factory;
-  /** load balancing policy name */
-  char *lb_policy_name;
-
-  /** mutex guarding the rest of the state */
-  gpr_mu mu;
-  /** are we currently resolving? */
-  int resolving;
-  /** which version of resolved_config have we published? */
-  int published_version;
-  /** which version of resolved_config is current? */
-  int resolved_version;
-  /** pending next completion, or NULL */
-  grpc_closure *next_completion;
-  /** target config address for next completion */
-  grpc_client_config **target_config;
-  /** current (fully resolved) config */
-  grpc_client_config *resolved_config;
-  /** retry timer */
-  bool have_retry_timer;
-  grpc_timer retry_timer;
-  /** retry backoff state */
-  gpr_backoff backoff_state;
-} dns_resolver;
-
-static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
-
-static void dns_start_resolving_locked(dns_resolver *r);
-static void dns_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx,
-                                         dns_resolver *r);
-
-static void dns_shutdown(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
-static void dns_channel_saw_error(grpc_exec_ctx *exec_ctx, grpc_resolver *r);
-static void dns_next(grpc_exec_ctx *exec_ctx, grpc_resolver *r,
-                     grpc_client_config **target_config,
-                     grpc_closure *on_complete);
-
-static const grpc_resolver_vtable dns_resolver_vtable = {
-    dns_destroy, dns_shutdown, dns_channel_saw_error, dns_next};
-
-static void dns_shutdown(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver) {
-  dns_resolver *r = (dns_resolver *)resolver;
-  gpr_mu_lock(&r->mu);
-  if (r->have_retry_timer) {
-    grpc_timer_cancel(exec_ctx, &r->retry_timer);
-  }
-  if (r->next_completion != NULL) {
-    *r->target_config = NULL;
-    grpc_exec_ctx_enqueue(exec_ctx, r->next_completion, true, NULL);
-    r->next_completion = NULL;
-  }
-  gpr_mu_unlock(&r->mu);
-}
-
-static void dns_channel_saw_error(grpc_exec_ctx *exec_ctx,
-                                  grpc_resolver *resolver) {
-  dns_resolver *r = (dns_resolver *)resolver;
-  gpr_mu_lock(&r->mu);
-  if (!r->resolving) {
-    gpr_backoff_reset(&r->backoff_state);
-    dns_start_resolving_locked(r);
-  }
-  gpr_mu_unlock(&r->mu);
-}
-
-static void dns_next(grpc_exec_ctx *exec_ctx, grpc_resolver *resolver,
-                     grpc_client_config **target_config,
-                     grpc_closure *on_complete) {
-  dns_resolver *r = (dns_resolver *)resolver;
-  gpr_mu_lock(&r->mu);
-  GPR_ASSERT(!r->next_completion);
-  r->next_completion = on_complete;
-  r->target_config = target_config;
-  if (r->resolved_version == 0 && !r->resolving) {
-    gpr_backoff_reset(&r->backoff_state);
-    dns_start_resolving_locked(r);
-  } else {
-    dns_maybe_finish_next_locked(exec_ctx, r);
-  }
-  gpr_mu_unlock(&r->mu);
-}
-
-static void dns_on_retry_timer(grpc_exec_ctx *exec_ctx, void *arg,
-                               bool success) {
-  dns_resolver *r = arg;
-
-  gpr_mu_lock(&r->mu);
-  r->have_retry_timer = false;
-  if (success) {
-    if (!r->resolving) {
-      dns_start_resolving_locked(r);
-    }
-  }
-  gpr_mu_unlock(&r->mu);
-
-  GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "retry-timer");
-}
-
-static void dns_on_resolved(grpc_exec_ctx *exec_ctx, void *arg,
-                            grpc_resolved_addresses *addresses) {
-  dns_resolver *r = arg;
-  grpc_client_config *config = NULL;
-  grpc_subchannel **subchannels;
-  grpc_subchannel_args args;
-  grpc_lb_policy *lb_policy;
-  size_t i;
-  gpr_mu_lock(&r->mu);
-  GPR_ASSERT(r->resolving);
-  r->resolving = 0;
-  if (addresses != NULL) {
-    grpc_lb_policy_args lb_policy_args;
-    config = grpc_client_config_create();
-    subchannels = gpr_malloc(sizeof(grpc_subchannel *) * addresses->naddrs);
-    size_t naddrs = 0;
-    for (i = 0; i < addresses->naddrs; i++) {
-      memset(&args, 0, sizeof(args));
-      args.addr = (struct sockaddr *)(addresses->addrs[i].addr);
-      args.addr_len = (size_t)addresses->addrs[i].len;
-      grpc_subchannel *subchannel = grpc_subchannel_factory_create_subchannel(
-          exec_ctx, r->subchannel_factory, &args);
-      if (subchannel != NULL) {
-        subchannels[naddrs++] = subchannel;
-      }
-    }
-    memset(&lb_policy_args, 0, sizeof(lb_policy_args));
-    lb_policy_args.subchannels = subchannels;
-    lb_policy_args.num_subchannels = naddrs;
-    lb_policy = grpc_lb_policy_create(r->lb_policy_name, &lb_policy_args);
-    if (lb_policy != NULL) {
-      grpc_client_config_set_lb_policy(config, lb_policy);
-      GRPC_LB_POLICY_UNREF(exec_ctx, lb_policy, "construction");
-    }
-    grpc_resolved_addresses_destroy(addresses);
-    gpr_free(subchannels);
-  } else {
-    gpr_timespec now = gpr_now(GPR_CLOCK_MONOTONIC);
-    gpr_timespec next_try = gpr_backoff_step(&r->backoff_state, now);
-    gpr_timespec timeout = gpr_time_sub(next_try, now);
-    gpr_log(GPR_DEBUG, "dns resolution failed: retrying in %d.%09d seconds",
-            timeout.tv_sec, timeout.tv_nsec);
-    GPR_ASSERT(!r->have_retry_timer);
-    r->have_retry_timer = true;
-    GRPC_RESOLVER_REF(&r->base, "retry-timer");
-    grpc_timer_init(exec_ctx, &r->retry_timer, next_try, dns_on_retry_timer, r,
-                    now);
-  }
-  if (r->resolved_config) {
-    grpc_client_config_unref(exec_ctx, r->resolved_config);
-  }
-  r->resolved_config = config;
-  r->resolved_version++;
-  dns_maybe_finish_next_locked(exec_ctx, r);
-  gpr_mu_unlock(&r->mu);
-
-  GRPC_RESOLVER_UNREF(exec_ctx, &r->base, "dns-resolving");
-}
-
-static void dns_start_resolving_locked(dns_resolver *r) {
-  GRPC_RESOLVER_REF(&r->base, "dns-resolving");
-  GPR_ASSERT(!r->resolving);
-  r->resolving = 1;
-  grpc_resolve_address(r->name, r->default_port, dns_on_resolved, r);
-}
-
-static void dns_maybe_finish_next_locked(grpc_exec_ctx *exec_ctx,
-                                         dns_resolver *r) {
-  if (r->next_completion != NULL &&
-      r->resolved_version != r->published_version) {
-    *r->target_config = r->resolved_config;
-    if (r->resolved_config) {
-      grpc_client_config_ref(r->resolved_config);
-    }
-    grpc_exec_ctx_enqueue(exec_ctx, r->next_completion, true, NULL);
-    r->next_completion = NULL;
-    r->published_version = r->resolved_version;
-  }
-}
-
-static void dns_destroy(grpc_exec_ctx *exec_ctx, grpc_resolver *gr) {
-  dns_resolver *r = (dns_resolver *)gr;
-  gpr_mu_destroy(&r->mu);
-  if (r->resolved_config) {
-    grpc_client_config_unref(exec_ctx, r->resolved_config);
-  }
-  grpc_subchannel_factory_unref(exec_ctx, 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_resolver_args *args,
-                                 const char *default_port,
-                                 const char *lb_policy_name) {
-  dns_resolver *r;
-  const char *path = args->uri->path;
-
-  if (0 != strcmp(args->uri->authority, "")) {
-    gpr_log(GPR_ERROR, "authority based dns uri's not supported");
-    return NULL;
-  }
-
-  if (path[0] == '/') ++path;
-
-  r = gpr_malloc(sizeof(dns_resolver));
-  memset(r, 0, sizeof(*r));
-  gpr_ref_init(&r->refs, 1);
-  gpr_mu_init(&r->mu);
-  grpc_resolver_init(&r->base, &dns_resolver_vtable);
-  r->name = gpr_strdup(path);
-  r->default_port = gpr_strdup(default_port);
-  r->subchannel_factory = args->subchannel_factory;
-  gpr_backoff_init(&r->backoff_state, BACKOFF_MULTIPLIER, BACKOFF_JITTER,
-                   BACKOFF_MIN_SECONDS * 1000, BACKOFF_MAX_SECONDS * 1000);
-  grpc_subchannel_factory_ref(r->subchannel_factory);
-  r->lb_policy_name = gpr_strdup(lb_policy_name);
-  return &r->base;
-}
-
-/*
- * FACTORY
- */
-
-static void dns_factory_ref(grpc_resolver_factory *factory) {}
-
-static void dns_factory_unref(grpc_resolver_factory *factory) {}
-
-static grpc_resolver *dns_factory_create_resolver(
-    grpc_resolver_factory *factory, grpc_resolver_args *args) {
-  return dns_create(args, "https", "pick_first");
-}
-
-char *dns_factory_get_default_host_name(grpc_resolver_factory *factory,
-                                        grpc_uri *uri) {
-  const char *path = uri->path;
-  if (path[0] == '/') ++path;
-  return gpr_strdup(path);
-}
-
-static const grpc_resolver_factory_vtable dns_factory_vtable = {
-    dns_factory_ref, dns_factory_unref, dns_factory_create_resolver,
-    dns_factory_get_default_host_name, "dns"};
-static grpc_resolver_factory dns_resolver_factory = {&dns_factory_vtable};
-
-grpc_resolver_factory *grpc_dns_resolver_factory_create() {
-  return &dns_resolver_factory;
-}