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1// Copyright (c) 2010 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/**
6 * SocketPoolWrapper is a wrapper around socket pools entries.  It's
7 * used by the log and sockets view to print tables containing both
8 * a synopsis of the state of all pools, and listing the groups within
9 * individual pools.
10 *
11 * The constructor takes a socket pool and its parent, and generates a
12 * unique name from the two, which is stored as |fullName|.  |parent|
13 * must itself be a SocketPoolWrapper.
14 *
15 * @constructor
16 */
17function SocketPoolWrapper(socketPool, parent) {
18  this.origPool = socketPool;
19  this.fullName = socketPool.name;
20  if (this.fullName != socketPool.type)
21    this.fullName += ' (' + socketPool.type + ')';
22  if (parent)
23    this.fullName = parent.fullName + '->' + this.fullName;
24}
25
26/**
27 * Returns an array of SocketPoolWrappers created from each of the socket pools
28 * in |socketPoolInfo|.  Nested socket pools appear immediately after their
29 * parent, and groups of nodes from trees with root nodes with the same id are
30 * placed adjacent to each other.
31 */
32SocketPoolWrapper.createArrayFrom = function(socketPoolInfo) {
33  // Create SocketPoolWrappers for each socket pool and separate socket pools
34  // them into different arrays based on root node name.
35  var socketPoolGroups = [];
36  var socketPoolNameLists = {};
37  for (var i = 0; i < socketPoolInfo.length; ++i) {
38    var name = socketPoolInfo[i].name;
39    if (!socketPoolNameLists[name]) {
40      socketPoolNameLists[name] = [];
41      socketPoolGroups.push(socketPoolNameLists[name]);
42    }
43    SocketPoolWrapper.addSocketPoolsToList_(socketPoolNameLists[name],
44                                            socketPoolInfo[i], null);
45  }
46
47  // Merge the arrays.
48  var socketPoolList = [];
49  for (var i = 0; i < socketPoolGroups.length; ++i) {
50    socketPoolList = socketPoolList.concat(socketPoolGroups[i]);
51  }
52  return socketPoolList;
53};
54
55/**
56 * Recursively creates SocketPoolWrappers from |origPool| and all its
57 * children and adds them all to |socketPoolList|.  |parent| is the
58 * SocketPoolWrapper for the parent of |origPool|, or null, if it's
59 * a top level socket pool.
60 */
61SocketPoolWrapper.addSocketPoolsToList_ = function(socketPoolList,
62                                                   origPool,
63                                                   parent) {
64  var socketPool = new SocketPoolWrapper(origPool, parent);
65  socketPoolList.push(socketPool);
66  if (origPool.nested_pools) {
67    for (var i = 0; i < origPool.nested_pools.length; ++i) {
68      SocketPoolWrapper.addSocketPoolsToList_(socketPoolList,
69                                              origPool.nested_pools[i],
70                                              socketPool);
71    }
72  }
73};
74
75/**
76 * Returns a table printer containing information on each
77 * SocketPoolWrapper in |socketPools|.
78 */
79SocketPoolWrapper.createTablePrinter = function(socketPools) {
80  var tablePrinter = new TablePrinter();
81  tablePrinter.addHeaderCell('Name');
82  tablePrinter.addHeaderCell('Handed Out');
83  tablePrinter.addHeaderCell('Idle');
84  tablePrinter.addHeaderCell('Connecting');
85  tablePrinter.addHeaderCell('Max');
86  tablePrinter.addHeaderCell('Max Per Group');
87  tablePrinter.addHeaderCell('Generation');
88
89  for (var i = 0; i < socketPools.length; i++) {
90    var origPool = socketPools[i].origPool;
91
92    tablePrinter.addRow();
93    tablePrinter.addCell(socketPools[i].fullName);
94
95    tablePrinter.addCell(origPool.handed_out_socket_count);
96    var idleCell = tablePrinter.addCell(origPool.idle_socket_count);
97    var connectingCell = tablePrinter.addCell(origPool.connecting_socket_count);
98
99    if (origPool.groups) {
100      var idleSources = [];
101      var connectingSources = [];
102      for (var groupName in origPool.groups) {
103        var group = origPool.groups[groupName];
104        idleSources = idleSources.concat(group.idle_sockets);
105        connectingSources = connectingSources.concat(group.connect_jobs);
106      }
107      idleCell.link = SocketPoolWrapper.sourceListLink(idleSources);
108      connectingCell.link =
109          SocketPoolWrapper.sourceListLink(connectingSources);
110    }
111
112    tablePrinter.addCell(origPool.max_socket_count);
113    tablePrinter.addCell(origPool.max_sockets_per_group);
114    tablePrinter.addCell(origPool.pool_generation_number);
115  }
116  return tablePrinter;
117};
118
119/**
120 * Returns a table printer containing information on all a
121 * socket pool's groups.
122 */
123SocketPoolWrapper.prototype.createGroupTablePrinter = function() {
124  var tablePrinter = new TablePrinter();
125  tablePrinter.setTitle(this.fullName);
126
127  tablePrinter.addHeaderCell('Name');
128  tablePrinter.addHeaderCell('Pending');
129  tablePrinter.addHeaderCell('Top Priority');
130  tablePrinter.addHeaderCell('Active');
131  tablePrinter.addHeaderCell('Idle');
132  tablePrinter.addHeaderCell('Connect Jobs');
133  tablePrinter.addHeaderCell('Backup Job');
134  tablePrinter.addHeaderCell('Stalled');
135
136  for (var groupName in this.origPool.groups) {
137    var group = this.origPool.groups[groupName];
138
139    tablePrinter.addRow();
140    tablePrinter.addCell(groupName);
141    tablePrinter.addCell(group.pending_request_count);
142    if (group.top_pending_priority != undefined)
143      tablePrinter.addCell(group.top_pending_priority);
144    else
145      tablePrinter.addCell('-');
146
147    tablePrinter.addCell(group.active_socket_count);
148    var idleCell = tablePrinter.addCell(group.idle_sockets.length);
149    var connectingCell = tablePrinter.addCell(group.connect_jobs.length);
150
151    idleCell.link = SocketPoolWrapper.sourceListLink(group.idle_sockets);
152    connectingCell.link =
153        SocketPoolWrapper.sourceListLink(group.connect_jobs);
154
155    tablePrinter.addCell(group.has_backup_job);
156    tablePrinter.addCell(group.is_stalled);
157  }
158  return tablePrinter;
159};
160
161/**
162 * Takes in a list of source IDs and returns a link that will select the
163 * specified sources.
164 */
165SocketPoolWrapper.sourceListLink = function(sources) {
166  if (!sources.length)
167    return null;
168  return '#events&q=id:' + sources.join('%20id:');
169}
170