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      1 // Copyright (c) 2009 The Chromium Authors. All rights reserved.
      2 // Use of this source code is governed by a BSD-style license that can be
      3 // found in the LICENSE file.
      4 
      5 #include "chrome/browser/sync/sessions/status_controller.h"
      6 
      7 #include "base/basictypes.h"
      8 #include "chrome/browser/sync/syncable/model_type.h"
      9 
     10 namespace browser_sync {
     11 namespace sessions {
     12 
     13 using syncable::FIRST_REAL_MODEL_TYPE;
     14 using syncable::MODEL_TYPE_COUNT;
     15 
     16 StatusController::StatusController(const ModelSafeRoutingInfo& routes)
     17     : shared_(&is_dirty_),
     18       per_model_group_deleter_(&per_model_group_),
     19       is_dirty_(false),
     20       group_restriction_in_effect_(false),
     21       group_restriction_(GROUP_PASSIVE),
     22       routing_info_(routes) {
     23 }
     24 
     25 StatusController::~StatusController() {}
     26 
     27 bool StatusController::TestAndClearIsDirty() {
     28   bool is_dirty = is_dirty_;
     29   is_dirty_ = false;
     30   return is_dirty;
     31 }
     32 
     33 PerModelSafeGroupState* StatusController::GetOrCreateModelSafeGroupState(
     34     bool restrict, ModelSafeGroup group) {
     35   DCHECK(restrict == group_restriction_in_effect_) << "Group violation!";
     36   if (per_model_group_.find(group) == per_model_group_.end()) {
     37     PerModelSafeGroupState* state = new PerModelSafeGroupState(&is_dirty_);
     38     per_model_group_[group] = state;
     39     return state;
     40   }
     41   return per_model_group_[group];
     42 }
     43 
     44 void StatusController::increment_num_conflicting_commits_by(int value) {
     45   if (value == 0)
     46     return;
     47   shared_.error_counters.mutate()->num_conflicting_commits += value;
     48 }
     49 
     50 void StatusController::increment_num_updates_downloaded_by(int value) {
     51   shared_.syncer_status.mutate()->num_updates_downloaded_total += value;
     52 }
     53 
     54 void StatusController::set_types_needing_local_migration(
     55     const syncable::ModelTypeSet& types) {
     56   shared_.syncer_status.mutate()->types_needing_local_migration = types;
     57 }
     58 
     59 void StatusController::increment_num_tombstone_updates_downloaded_by(
     60     int value) {
     61   shared_.syncer_status.mutate()->num_tombstone_updates_downloaded_total +=
     62       value;
     63 }
     64 
     65 void StatusController::reset_num_conflicting_commits() {
     66   if (shared_.error_counters.value().num_conflicting_commits != 0)
     67     shared_.error_counters.mutate()->num_conflicting_commits = 0;
     68 }
     69 
     70 void StatusController::set_num_consecutive_transient_error_commits(int value) {
     71   if (shared_.error_counters.value().consecutive_transient_error_commits !=
     72       value) {
     73     shared_.error_counters.mutate()->consecutive_transient_error_commits =
     74         value;
     75   }
     76 }
     77 
     78 void StatusController::increment_num_consecutive_transient_error_commits_by(
     79     int value) {
     80   set_num_consecutive_transient_error_commits(
     81       shared_.error_counters.value().consecutive_transient_error_commits +
     82       value);
     83 }
     84 
     85 void StatusController::set_num_consecutive_errors(int value) {
     86   if (shared_.error_counters.value().consecutive_errors != value)
     87     shared_.error_counters.mutate()->consecutive_errors = value;
     88 }
     89 
     90 void StatusController::set_num_server_changes_remaining(
     91     int64 changes_remaining) {
     92   if (shared_.num_server_changes_remaining.value() != changes_remaining)
     93     *(shared_.num_server_changes_remaining.mutate()) = changes_remaining;
     94 }
     95 
     96 void StatusController::set_invalid_store(bool invalid_store) {
     97   if (shared_.syncer_status.value().invalid_store != invalid_store)
     98     shared_.syncer_status.mutate()->invalid_store = invalid_store;
     99 }
    100 
    101 void StatusController::set_syncer_stuck(bool syncer_stuck) {
    102   if (shared_.syncer_status.value().syncer_stuck != syncer_stuck)
    103     shared_.syncer_status.mutate()->syncer_stuck = syncer_stuck;
    104 }
    105 
    106 void StatusController::set_syncing(bool syncing) {
    107   if (shared_.syncer_status.value().syncing != syncing)
    108     shared_.syncer_status.mutate()->syncing = syncing;
    109 }
    110 
    111 void StatusController::set_num_successful_bookmark_commits(int value) {
    112   if (shared_.syncer_status.value().num_successful_bookmark_commits != value)
    113     shared_.syncer_status.mutate()->num_successful_bookmark_commits = value;
    114 }
    115 
    116 void StatusController::set_unsynced_handles(
    117     const std::vector<int64>& unsynced_handles) {
    118   if (!operator==(unsynced_handles, shared_.unsynced_handles.value())) {
    119     *(shared_.unsynced_handles.mutate()) = unsynced_handles;
    120   }
    121 }
    122 
    123 void StatusController::increment_num_consecutive_errors() {
    124   set_num_consecutive_errors(
    125       shared_.error_counters.value().consecutive_errors + 1);
    126 }
    127 
    128 void StatusController::increment_num_consecutive_errors_by(int value) {
    129   set_num_consecutive_errors(
    130       shared_.error_counters.value().consecutive_errors + value);
    131 }
    132 
    133 void StatusController::increment_num_successful_bookmark_commits() {
    134   set_num_successful_bookmark_commits(
    135       shared_.syncer_status.value().num_successful_bookmark_commits + 1);
    136 }
    137 
    138 void StatusController::increment_num_successful_commits() {
    139   shared_.syncer_status.mutate()->num_successful_commits++;
    140 }
    141 
    142 void StatusController::set_commit_set(const OrderedCommitSet& commit_set) {
    143   DCHECK(!group_restriction_in_effect_);
    144   shared_.commit_set = commit_set;
    145 }
    146 
    147 void StatusController::update_conflict_sets_built(bool built) {
    148   shared_.control_params.conflict_sets_built |= built;
    149 }
    150 void StatusController::update_conflicts_resolved(bool resolved) {
    151   shared_.control_params.conflict_sets_built |= resolved;
    152 }
    153 void StatusController::reset_conflicts_resolved() {
    154   shared_.control_params.conflicts_resolved = false;
    155 }
    156 void StatusController::set_items_committed() {
    157   shared_.control_params.items_committed = true;
    158 }
    159 
    160 // Returns the number of updates received from the sync server.
    161 int64 StatusController::CountUpdates() const {
    162   const ClientToServerResponse& updates = shared_.updates_response;
    163   if (updates.has_get_updates()) {
    164     return updates.get_updates().entries().size();
    165   } else {
    166     return 0;
    167   }
    168 }
    169 
    170 bool StatusController::CurrentCommitIdProjectionHasIndex(size_t index) {
    171   OrderedCommitSet::Projection proj =
    172       shared_.commit_set.GetCommitIdProjection(group_restriction_);
    173   return std::binary_search(proj.begin(), proj.end(), index);
    174 }
    175 
    176 bool StatusController::HasConflictingUpdates() const {
    177   DCHECK(!group_restriction_in_effect_)
    178       << "HasConflictingUpdates applies to all ModelSafeGroups";
    179   std::map<ModelSafeGroup, PerModelSafeGroupState*>::const_iterator it =
    180     per_model_group_.begin();
    181   for (; it != per_model_group_.end(); ++it) {
    182     if (it->second->update_progress.HasConflictingUpdates())
    183       return true;
    184   }
    185   return false;
    186 }
    187 
    188 int StatusController::TotalNumConflictingItems() const {
    189   DCHECK(!group_restriction_in_effect_)
    190       << "TotalNumConflictingItems applies to all ModelSafeGroups";
    191   std::map<ModelSafeGroup, PerModelSafeGroupState*>::const_iterator it =
    192     per_model_group_.begin();
    193   int sum = 0;
    194   for (; it != per_model_group_.end(); ++it) {
    195     sum += it->second->conflict_progress.ConflictingItemsSize();
    196   }
    197   return sum;
    198 }
    199 
    200 bool StatusController::ServerSaysNothingMoreToDownload() const {
    201   if (!download_updates_succeeded())
    202     return false;
    203 
    204   if (!updates_response().get_updates().has_changes_remaining()) {
    205     NOTREACHED();  // Server should always send changes remaining.
    206     return false;  // Avoid looping forever.
    207   }
    208   // Changes remaining is an estimate, but if it's estimated to be
    209   // zero, that's firm and we don't have to ask again.
    210   return updates_response().get_updates().changes_remaining() == 0;
    211 }
    212 
    213 }  // namespace sessions
    214 }  // namespace browser_sync
    215