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7
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1 /* vi:set ts=8 sts=4 sw=4:
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2 *
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3 * VIM - Vi IMproved by Bram Moolenaar
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4 * X command server by Flemming Madsen
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5 *
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6 * Do ":help uganda" in Vim to read copying and usage conditions.
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7 * Do ":help credits" in Vim to see a list of people who contributed.
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8 * See README.txt for an overview of the Vim source code.
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9 *
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10 * if_xcmdsrv.c: Functions for passing commands through an X11 display.
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11 *
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12 */
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13
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14 #include "vim.h"
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15 #include "version.h"
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16
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17 #if defined(FEAT_CLIENTSERVER) || defined(PROTO)
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18
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19 # ifdef FEAT_X11
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20 # include <X11/Intrinsic.h>
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21 # include <X11/Xatom.h>
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22 # endif
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23
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24 # if defined(HAVE_SYS_SELECT_H) && \
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25 (!defined(HAVE_SYS_TIME_H) || defined(SYS_SELECT_WITH_SYS_TIME))
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26 # include <sys/select.h>
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27 # endif
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28
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29 # ifndef HAVE_SELECT
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30 # ifdef HAVE_SYS_POLL_H
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31 # include <sys/poll.h>
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32 # else
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33 # ifdef HAVE_POLL_H
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34 # include <poll.h>
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35 # endif
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36 # endif
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37 # endif
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38
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39 /*
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40 * This file provides procedures that implement the command server functionality
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41 * of Vim when in contact with an X11 server.
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42 *
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43 * Adapted from TCL/TK's send command in tkSend.c of the tk 3.6 distribution.
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44 * Adapted for use in Vim by Flemming Madsen. Protocol changed to that of tk 4
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45 */
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46
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47 /*
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48 * Copyright (c) 1989-1993 The Regents of the University of California.
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49 * All rights reserved.
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50 *
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51 * Permission is hereby granted, without written agreement and without
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52 * license or royalty fees, to use, copy, modify, and distribute this
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53 * software and its documentation for any purpose, provided that the
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54 * above copyright notice and the following two paragraphs appear in
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55 * all copies of this software.
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56 *
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57 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
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58 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
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59 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
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60 * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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61 *
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62 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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63 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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64 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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65 * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
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66 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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67 */
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68
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69
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70 /*
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71 * When a result is being awaited from a sent command, one of
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72 * the following structures is present on a list of all outstanding
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73 * sent commands. The information in the structure is used to
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74 * process the result when it arrives. You're probably wondering
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75 * how there could ever be multiple outstanding sent commands.
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76 * This could happen if Vim instances invoke each other recursively.
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77 * It's unlikely, but possible.
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78 */
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79
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80 typedef struct PendingCommand
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81 {
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82 int serial; /* Serial number expected in result. */
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83 int code; /* Result Code. 0 is OK */
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84 char_u *result; /* String result for command (malloc'ed).
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85 * NULL means command still pending. */
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86 struct PendingCommand *nextPtr;
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87 /* Next in list of all outstanding commands.
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88 * NULL means end of list. */
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89 } PendingCommand;
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90
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91 static PendingCommand *pendingCommands = NULL;
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92 /* List of all commands currently
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93 * being waited for. */
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94
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95 /*
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96 * The information below is used for communication between processes
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97 * during "send" commands. Each process keeps a private window, never
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98 * even mapped, with one property, "Comm". When a command is sent to
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99 * an interpreter, the command is appended to the comm property of the
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100 * communication window associated with the interp's process. Similarly,
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101 * when a result is returned from a sent command, it is also appended
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102 * to the comm property.
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103 *
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104 * Each command and each result takes the form of ASCII text. For a
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105 * command, the text consists of a nul character followed by several
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106 * nul-terminated ASCII strings. The first string consists of the
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107 * single letter "c" for an expression, or "k" for keystrokes. Subsequent
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108 * strings have the form "option value" where the following options are
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109 * supported:
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110 *
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111 * -r commWindow serial
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112 *
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113 * This option means that a response should be sent to the window
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114 * whose X identifier is "commWindow" (in hex), and the response should
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115 * be identified with the serial number given by "serial" (in decimal).
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116 * If this option isn't specified then the send is asynchronous and
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117 * no response is sent.
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118 *
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119 * -n name
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120 * "Name" gives the name of the application for which the command is
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121 * intended. This option must be present.
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122 *
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123 * -s script
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124 * "Script" is the script to be executed. This option must be
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125 * present. Taken as a series of keystrokes in a "k" command where
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126 * <Key>'s are expanded
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127 *
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128 * The options may appear in any order. The -n and -s options must be
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129 * present, but -r may be omitted for asynchronous RPCs. For compatibility
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130 * with future releases that may add new features, there may be additional
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131 * options present; as long as they start with a "-" character, they will
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132 * be ignored.
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133 *
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134 * A result also consists of a zero character followed by several null-
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135 * terminated ASCII strings. The first string consists of the single
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136 * letter "r". Subsequent strings have the form "option value" where
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137 * the following options are supported:
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138 *
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139 * -s serial
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140 * Identifies the command for which this is the result. It is the
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141 * same as the "serial" field from the -s option in the command. This
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142 * option must be present.
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143 *
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144 * -r result
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145 * "Result" is the result string for the script, which may be either
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146 * a result or an error message. If this field is omitted then it
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147 * defaults to an empty string.
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148 *
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149 * -c code
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150 * 0: for OK. This is the default.
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151 * 1: for error: Result is the last error
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152 *
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153 * -i errorInfo
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154 * -e errorCode
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155 * Not applicable for Vim
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156 *
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157 * Options may appear in any order, and only the -s option must be
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158 * present. As with commands, there may be additional options besides
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159 * these; unknown options are ignored.
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160 */
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161
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162 /*
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163 * Maximum size property that can be read at one time by
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164 * this module:
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165 */
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166
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167 #define MAX_PROP_WORDS 100000
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168
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169 struct ServerReply
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170 {
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171 Window id;
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172 garray_T strings;
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173 };
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174 static garray_T serverReply = { 0, 0, 0, 0, 0 };
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175 enum ServerReplyOp { SROP_Find, SROP_Add, SROP_Delete };
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176
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177 typedef int (*EndCond) __ARGS((void *));
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178
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179 /*
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180 * Forward declarations for procedures defined later in this file:
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181 */
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182
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183 static Window LookupName __ARGS((Display *dpy, char_u *name, int delete, char_u **loose));
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184 static int SendInit __ARGS((Display *dpy));
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185 static int DoRegisterName __ARGS((Display *dpy, char_u *name));
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186 static void DeleteAnyLingerer __ARGS((Display *dpy, Window w));
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187 static int GetRegProp __ARGS((Display *dpy, char_u **regPropp, long_u *numItemsp, int domsg));
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188 static int WaitForPend __ARGS((void *p));
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189 static int WaitForReply __ARGS((void *p));
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190 static int WindowValid __ARGS((Display *dpy, Window w));
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191 static void ServerWait __ARGS((Display *dpy, Window w, EndCond endCond, void *endData, int localLoop, int seconds));
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192 static struct ServerReply *ServerReplyFind __ARGS((Window w, enum ServerReplyOp op));
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193 static int AppendPropCarefully __ARGS((Display *display, Window window, Atom property, char_u *value, int length));
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194 static int x_error_check __ARGS((Display *dpy, XErrorEvent *error_event));
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195 static int IsSerialName __ARGS((char_u *name));
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196
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197 /* Private variables for the "server" functionality */
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198 static Atom registryProperty = None;
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199 static Atom vimProperty = None;
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200 static int got_x_error = FALSE;
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201
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202 static char_u *empty_prop = (char_u *)""; /* empty GetRegProp() result */
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203
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204 /*
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205 * Associate an ASCII name with Vim. Try real hard to get a unique one.
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206 * Returns FAIL or OK.
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207 */
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208 int
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209 serverRegisterName(dpy, name)
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210 Display *dpy; /* display to register with */
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211 char_u *name; /* the name that will be used as a base */
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212 {
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213 int i;
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214 int res;
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215 char_u *p = NULL;
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216
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217 res = DoRegisterName(dpy, name);
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218 if (res < 0)
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219 {
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220 i = 1;
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221 do
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222 {
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223 if (res < -1 || i >= 1000)
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224 {
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225 MSG_ATTR(_("Unable to register a command server name"),
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226 hl_attr(HLF_W));
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227 return FAIL;
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228 }
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229 if (p == NULL)
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230 p = alloc(STRLEN(name) + 10);
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231 if (p == NULL)
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232 {
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233 res = -10;
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234 continue;
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235 }
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236 sprintf((char *)p, "%s%d", name, i++);
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237 res = DoRegisterName(dpy, p);
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238 }
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239 while (res < 0)
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240 ;
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241 vim_free(p);
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242 }
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243 return OK;
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244 }
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245
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246 static int
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247 DoRegisterName(dpy, name)
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248 Display *dpy;
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249 char_u *name;
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250 {
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251 Window w;
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252 XErrorHandler old_handler;
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253 #define MAX_NAME_LENGTH 100
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254 char_u propInfo[MAX_NAME_LENGTH + 20];
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255
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256 if (commProperty == None)
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257 {
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258 if (SendInit(dpy) < 0)
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259 return -2;
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260 }
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261
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262 /*
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263 * Make sure the name is unique, and append info about it to
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264 * the registry property. It's important to lock the server
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265 * here to prevent conflicting changes to the registry property.
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266 * WARNING: Do not step through this while debugging, it will hangup the X
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267 * server!
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268 */
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269 XGrabServer(dpy);
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270 w = LookupName(dpy, name, FALSE, NULL);
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271 if (w != (Window)0)
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272 {
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273 Status status;
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274 int dummyInt;
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275 unsigned int dummyUns;
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276 Window dummyWin;
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277
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278 /*
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279 * The name is currently registered. See if the commWindow
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280 * associated with the name exists. If not, or if the commWindow
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281 * is *our* commWindow, then just unregister the old name (this
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282 * could happen if an application dies without cleaning up the
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283 * registry).
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284 */
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285 old_handler = XSetErrorHandler(x_error_check);
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286 status = XGetGeometry(dpy, w, &dummyWin, &dummyInt, &dummyInt,
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287 &dummyUns, &dummyUns, &dummyUns, &dummyUns);
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288 (void)XSetErrorHandler(old_handler);
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289 if (status != Success && w != commWindow)
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290 {
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291 XUngrabServer(dpy);
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292 XFlush(dpy);
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293 return -1;
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294 }
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295 (void)LookupName(dpy, name, /*delete=*/TRUE, NULL);
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296 }
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297 sprintf((char *)propInfo, "%x %.*s", (int_u)commWindow,
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298 MAX_NAME_LENGTH, name);
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299 old_handler = XSetErrorHandler(x_error_check);
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300 got_x_error = FALSE;
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301 XChangeProperty(dpy, RootWindow(dpy, 0), registryProperty, XA_STRING, 8,
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302 PropModeAppend, propInfo, STRLEN(propInfo) + 1);
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303 XUngrabServer(dpy);
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304 XSync(dpy, False);
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305 (void)XSetErrorHandler(old_handler);
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306
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307 if (!got_x_error)
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308 {
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309 #ifdef FEAT_EVAL
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310 set_vim_var_string(VV_SEND_SERVER, name, -1);
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311 #endif
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312 serverName = vim_strsave(name);
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313 #ifdef FEAT_TITLE
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314 need_maketitle = TRUE;
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315 #endif
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316 return 0;
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317 }
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318 return -2;
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319 }
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320
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321 #if defined(FEAT_GUI) || defined(PROTO)
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322 /*
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323 * Clean out new ID from registry and set it as comm win.
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324 * Change any registered window ID.
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325 */
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326 void
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327 serverChangeRegisteredWindow(dpy, newwin)
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328 Display *dpy; /* Display to register with */
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329 Window newwin; /* Re-register to this ID */
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330 {
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331 char_u propInfo[MAX_NAME_LENGTH + 20];
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332
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333 commWindow = newwin;
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334
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335 /* Always call SendInit() here, to make sure commWindow is marked as a Vim
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336 * window. */
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337 if (SendInit(dpy) < 0)
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338 return;
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339
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340 /* WARNING: Do not step through this while debugging, it will hangup the X
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341 * server! */
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342 XGrabServer(dpy);
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343 DeleteAnyLingerer(dpy, newwin);
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344 if (serverName != NULL)
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345 {
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346 /* Reinsert name if we was already registered */
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347 (void)LookupName(dpy, serverName, /*delete=*/TRUE, NULL);
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348 sprintf((char *)propInfo, "%x %.*s",
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349 (int_u)newwin, MAX_NAME_LENGTH, serverName);
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350 XChangeProperty(dpy, RootWindow(dpy, 0), registryProperty, XA_STRING, 8,
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351 PropModeAppend, (char_u *)propInfo,
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352 STRLEN(propInfo) + 1);
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353 }
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354 XUngrabServer(dpy);
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355 }
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356 #endif
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357
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358 /*
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359 * Send to an instance of Vim via the X display.
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360 * Returns 0 for OK, negative for an error.
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361 */
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362 int
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363 serverSendToVim(dpy, name, cmd, result, server, asExpr, localLoop, silent)
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364 Display *dpy; /* Where to send. */
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365 char_u *name; /* Where to send. */
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366 char_u *cmd; /* What to send. */
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367 char_u **result; /* Result of eval'ed expression */
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368 Window *server; /* Actual ID of receiving app */
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369 Bool asExpr; /* Interpret as keystrokes or expr ? */
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370 Bool localLoop; /* Throw away everything but result */
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371 int silent; /* don't complain about no server */
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372 {
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373 Window w;
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374 char_u *property;
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375 int length;
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376 int res;
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377 static int serial = 0; /* Running count of sent commands.
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378 * Used to give each command a
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379 * different serial number. */
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380 PendingCommand pending;
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381 char_u *loosename = NULL;
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382
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383 if (result != NULL)
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384 *result = NULL;
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385 if (name == NULL || *name == NUL)
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386 name = (char_u *)"GVIM"; /* use a default name */
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387
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388 if (commProperty == None && dpy != NULL)
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389 {
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390 if (SendInit(dpy) < 0)
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391 return -1;
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392 }
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393
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394 /* Execute locally if no display or target is ourselves */
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395 if (dpy == NULL || (serverName != NULL && STRICMP(name, serverName) == 0))
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396 {
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397 if (asExpr)
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398 {
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399 char_u *ret;
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400
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401 ret = eval_client_expr_to_string(cmd);
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402 if (result != NULL)
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403 {
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404 if (ret == NULL)
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405 *result = vim_strsave((char_u *)_(e_invexprmsg));
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|
406 else
|
|
|
407 *result = ret;
|
|
|
408 }
|
|
|
409 else
|
|
|
410 vim_free(ret);
|
|
|
411 return ret == NULL ? -1 : 0;
|
|
|
412 }
|
|
|
413 else
|
|
|
414 server_to_input_buf(cmd);
|
|
|
415 return 0;
|
|
|
416 }
|
|
|
417
|
|
|
418 /*
|
|
|
419 * Bind the server name to a communication window.
|
|
|
420 *
|
|
|
421 * Find any survivor with a serialno attached to the name if the
|
|
|
422 * original registrant of the wanted name is no longer present.
|
|
|
423 *
|
|
|
424 * Delete any lingering names from dead editors.
|
|
|
425 */
|
|
|
426 while (TRUE)
|
|
|
427 {
|
|
|
428 w = LookupName(dpy, name, FALSE, &loosename);
|
|
|
429 /* Check that the window is hot */
|
|
|
430 if (w != None)
|
|
|
431 {
|
|
|
432 if (!WindowValid(dpy, w))
|
|
|
433 {
|
|
|
434 LookupName(dpy, loosename ? loosename : name,
|
|
|
435 /*DELETE=*/TRUE, NULL);
|
|
|
436 continue;
|
|
|
437 }
|
|
|
438 }
|
|
|
439 break;
|
|
|
440 }
|
|
|
441 if (w == None)
|
|
|
442 {
|
|
|
443 if (!silent)
|
|
|
444 EMSG2(_(e_noserver), name);
|
|
|
445 return -1;
|
|
|
446 }
|
|
|
447 else if (loosename != NULL)
|
|
|
448 name = loosename;
|
|
|
449 if (server != NULL)
|
|
|
450 *server = w;
|
|
|
451
|
|
|
452 /*
|
|
|
453 * Send the command to target interpreter by appending it to the
|
|
|
454 * comm window in the communication window.
|
|
|
455 */
|
|
|
456 length = STRLEN(name) + STRLEN(cmd) + 10;
|
|
|
457 property = (char_u *)alloc((unsigned) length + 30);
|
|
|
458
|
|
|
459 sprintf((char *)property, "%c%c%c-n %s%c-s %s",
|
|
|
460 0, asExpr ? 'c' : 'k', 0, name, 0, cmd);
|
|
|
461 if (name == loosename)
|
|
|
462 vim_free(loosename);
|
|
|
463 /* Add a back reference to our comm window */
|
|
|
464 serial++;
|
|
|
465 sprintf((char *)property + length, "%c-r %x %d",
|
|
|
466 0, (int_u)commWindow, serial);
|
|
|
467 length += STRLEN(property + length + 1) + 1;
|
|
|
468
|
|
|
469 res = AppendPropCarefully(dpy, w, commProperty, property, length + 1);
|
|
|
470 vim_free(property);
|
|
|
471 if (res < 0)
|
|
|
472 {
|
|
|
473 EMSG(_("E248: Failed to send command to the destination program"));
|
|
|
474 return -1;
|
|
|
475 }
|
|
|
476
|
|
|
477 if (!asExpr) /* There is no answer for this - Keys are sent async */
|
|
|
478 return 0;
|
|
|
479
|
|
|
480 /*
|
|
|
481 * Register the fact that we're waiting for a command to
|
|
|
482 * complete (this is needed by SendEventProc and by
|
|
|
483 * AppendErrorProc to pass back the command's results).
|
|
|
484 */
|
|
|
485 pending.serial = serial;
|
|
|
486 pending.code = 0;
|
|
|
487 pending.result = NULL;
|
|
|
488 pending.nextPtr = pendingCommands;
|
|
|
489 pendingCommands = &pending;
|
|
|
490
|
|
|
491 ServerWait(dpy, w, WaitForPend, &pending, localLoop, 600);
|
|
|
492
|
|
|
493 /*
|
|
|
494 * Unregister the information about the pending command
|
|
|
495 * and return the result.
|
|
|
496 */
|
|
|
497 if (pendingCommands == &pending)
|
|
|
498 pendingCommands = pending.nextPtr;
|
|
|
499 else
|
|
|
500 {
|
|
|
501 PendingCommand *pcPtr;
|
|
|
502
|
|
|
503 for (pcPtr = pendingCommands; pcPtr != NULL; pcPtr = pcPtr->nextPtr)
|
|
|
504 if (pcPtr->nextPtr == &pending)
|
|
|
505 {
|
|
|
506 pcPtr->nextPtr = pending.nextPtr;
|
|
|
507 break;
|
|
|
508 }
|
|
|
509 }
|
|
|
510 if (result != NULL)
|
|
|
511 *result = pending.result;
|
|
|
512 else
|
|
|
513 vim_free(pending.result);
|
|
|
514
|
|
|
515 return pending.code == 0 ? 0 : -1;
|
|
|
516 }
|
|
|
517
|
|
|
518 static int
|
|
|
519 WaitForPend(p)
|
|
|
520 void *p;
|
|
|
521 {
|
|
|
522 PendingCommand *pending = (PendingCommand *) p;
|
|
|
523 return pending->result != NULL;
|
|
|
524 }
|
|
|
525
|
|
|
526 /*
|
|
|
527 * Return TRUE if window "w" exists and has a "Vim" property on it.
|
|
|
528 */
|
|
|
529 static int
|
|
|
530 WindowValid(dpy, w)
|
|
|
531 Display *dpy;
|
|
|
532 Window w;
|
|
|
533 {
|
|
|
534 XErrorHandler old_handler;
|
|
|
535 Atom *plist;
|
|
|
536 int numProp;
|
|
|
537 int i;
|
|
|
538
|
|
|
539 old_handler = XSetErrorHandler(x_error_check);
|
|
|
540 got_x_error = 0;
|
|
|
541 plist = XListProperties(dpy, w, &numProp);
|
|
|
542 XSync(dpy, False);
|
|
|
543 XSetErrorHandler(old_handler);
|
|
|
544 if (plist == NULL || got_x_error)
|
|
|
545 return FALSE;
|
|
|
546
|
|
|
547 for (i = 0; i < numProp; i++)
|
|
|
548 if (plist[i] == vimProperty)
|
|
|
549 {
|
|
|
550 XFree(plist);
|
|
|
551 return TRUE;
|
|
|
552 }
|
|
|
553 XFree(plist);
|
|
|
554 return FALSE;
|
|
|
555 }
|
|
|
556
|
|
|
557 /*
|
|
|
558 * Enter a loop processing X events & polling chars until we see a result
|
|
|
559 */
|
|
|
560 static void
|
|
|
561 ServerWait(dpy, w, endCond, endData, localLoop, seconds)
|
|
|
562 Display *dpy;
|
|
|
563 Window w;
|
|
|
564 EndCond endCond;
|
|
|
565 void *endData;
|
|
|
566 int localLoop;
|
|
|
567 int seconds;
|
|
|
568 {
|
|
|
569 time_t start;
|
|
|
570 time_t now;
|
|
|
571 time_t lastChk = 0;
|
|
|
572 XEvent event;
|
|
|
573 XPropertyEvent *e = (XPropertyEvent *)&event;
|
|
|
574 # define SEND_MSEC_POLL 50
|
|
|
575
|
|
|
576 time(&start);
|
|
|
577 while (endCond(endData) == 0)
|
|
|
578 {
|
|
|
579 time(&now);
|
|
|
580 if (seconds >= 0 && (now - start) >= seconds)
|
|
|
581 break;
|
|
|
582 if (now != lastChk)
|
|
|
583 {
|
|
|
584 lastChk = now;
|
|
|
585 if (!WindowValid(dpy, w))
|
|
|
586 break;
|
|
|
587 /*
|
|
|
588 * Sometimes the PropertyChange event doesn't come.
|
|
|
589 * This can be seen in eg: vim -c 'echo remote_expr("gvim", "3+2")'
|
|
|
590 */
|
|
|
591 serverEventProc(dpy, NULL);
|
|
|
592 }
|
|
|
593 if (localLoop)
|
|
|
594 {
|
|
|
595 /* Just look out for the answer without calling back into Vim */
|
|
|
596 #ifndef HAVE_SELECT
|
|
|
597 struct pollfd fds;
|
|
|
598
|
|
|
599 fds.fd = ConnectionNumber(dpy);
|
|
|
600 fds.events = POLLIN;
|
|
|
601 if (poll(&fds, 1, SEND_MSEC_POLL) < 0)
|
|
|
602 break;
|
|
|
603 #else
|
|
|
604 fd_set fds;
|
|
|
605 struct timeval tv;
|
|
|
606
|
|
|
607 tv.tv_sec = 0;
|
|
|
608 tv.tv_usec = SEND_MSEC_POLL * 1000;
|
|
|
609 FD_ZERO(&fds);
|
|
|
610 FD_SET(ConnectionNumber(dpy), &fds);
|
|
|
611 if (select(ConnectionNumber(dpy) + 1, &fds, NULL, NULL, &tv) < 0)
|
|
|
612 break;
|
|
|
613 #endif
|
|
|
614 while (XEventsQueued(dpy, QueuedAfterReading) > 0)
|
|
|
615 {
|
|
|
616 XNextEvent(dpy, &event);
|
|
|
617 if (event.type == PropertyNotify && e->window == commWindow)
|
|
|
618 serverEventProc(dpy, &event);
|
|
|
619 }
|
|
|
620 }
|
|
|
621 else
|
|
|
622 {
|
|
|
623 if (got_int)
|
|
|
624 break;
|
|
|
625 ui_delay((long)SEND_MSEC_POLL, TRUE);
|
|
|
626 ui_breakcheck();
|
|
|
627 }
|
|
|
628 }
|
|
|
629 }
|
|
|
630
|
|
|
631
|
|
|
632 /*
|
|
|
633 * Fetch a list of all the Vim instance names currently registered for the
|
|
|
634 * display.
|
|
|
635 *
|
|
|
636 * Returns a newline separated list in allocated memory or NULL.
|
|
|
637 */
|
|
|
638 char_u *
|
|
|
639 serverGetVimNames(dpy)
|
|
|
640 Display *dpy;
|
|
|
641 {
|
|
|
642 char_u *regProp;
|
|
|
643 char_u *entry;
|
|
|
644 char_u *p;
|
|
|
645 long_u numItems;
|
|
|
646 int_u w;
|
|
|
647 garray_T ga;
|
|
|
648
|
|
|
649 if (registryProperty == None)
|
|
|
650 {
|
|
|
651 if (SendInit(dpy) < 0)
|
|
|
652 return NULL;
|
|
|
653 }
|
|
|
654 ga_init2(&ga, 1, 100);
|
|
|
655
|
|
|
656 /*
|
|
|
657 * Read the registry property.
|
|
|
658 */
|
|
|
659 if (GetRegProp(dpy, ®Prop, &numItems, TRUE) == FAIL)
|
|
|
660 return NULL;
|
|
|
661
|
|
|
662 /*
|
|
|
663 * Scan all of the names out of the property.
|
|
|
664 */
|
|
|
665 ga_init2(&ga, 1, 100);
|
|
|
666 for (p = regProp; (p - regProp) < numItems; p++)
|
|
|
667 {
|
|
|
668 entry = p;
|
|
|
669 while (*p != 0 && !isspace(*p))
|
|
|
670 p++;
|
|
|
671 if (*p != 0)
|
|
|
672 {
|
|
|
673 w = None;
|
|
|
674 sscanf((char *)entry, "%x", &w);
|
|
|
675 if (WindowValid(dpy, (Window)w))
|
|
|
676 {
|
|
|
677 ga_concat(&ga, p + 1);
|
|
|
678 ga_concat(&ga, (char_u *)"\n");
|
|
|
679 }
|
|
|
680 while (*p != 0)
|
|
|
681 p++;
|
|
|
682 }
|
|
|
683 }
|
|
|
684 if (regProp != empty_prop)
|
|
|
685 XFree(regProp);
|
|
21
|
686 ga_append(&ga, NUL);
|
|
7
|
687 return ga.ga_data;
|
|
|
688 }
|
|
|
689
|
|
|
690 /* ----------------------------------------------------------
|
|
|
691 * Reply stuff
|
|
|
692 */
|
|
|
693
|
|
|
694 static struct ServerReply *
|
|
|
695 ServerReplyFind(w, op)
|
|
|
696 Window w;
|
|
|
697 enum ServerReplyOp op;
|
|
|
698 {
|
|
|
699 struct ServerReply *p;
|
|
|
700 struct ServerReply e;
|
|
|
701 int i;
|
|
|
702
|
|
|
703 p = (struct ServerReply *) serverReply.ga_data;
|
|
|
704 for (i = 0; i < serverReply.ga_len; i++, p++)
|
|
|
705 if (p->id == w)
|
|
|
706 break;
|
|
|
707 if (i >= serverReply.ga_len)
|
|
|
708 p = NULL;
|
|
|
709
|
|
|
710 if (p == NULL && op == SROP_Add)
|
|
|
711 {
|
|
|
712 if (serverReply.ga_growsize == 0)
|
|
|
713 ga_init2(&serverReply, sizeof(struct ServerReply), 1);
|
|
|
714 if (ga_grow(&serverReply, 1) == OK)
|
|
|
715 {
|
|
|
716 p = ((struct ServerReply *) serverReply.ga_data)
|
|
|
717 + serverReply.ga_len;
|
|
|
718 e.id = w;
|
|
|
719 ga_init2(&e.strings, 1, 100);
|
|
|
720 memcpy(p, &e, sizeof(e));
|
|
|
721 serverReply.ga_len++;
|
|
|
722 serverReply.ga_room--;
|
|
|
723 }
|
|
|
724 }
|
|
|
725 else if (p != NULL && op == SROP_Delete)
|
|
|
726 {
|
|
|
727 ga_clear(&p->strings);
|
|
|
728 mch_memmove(p, p + 1, (serverReply.ga_len - i - 1) * sizeof(*p));
|
|
|
729 serverReply.ga_len--;
|
|
|
730 serverReply.ga_room++;
|
|
|
731 }
|
|
|
732
|
|
|
733 return p;
|
|
|
734 }
|
|
|
735
|
|
|
736 /*
|
|
|
737 * Convert string to windowid.
|
|
|
738 * Issue an error if the id is invalid.
|
|
|
739 */
|
|
|
740 Window
|
|
|
741 serverStrToWin(str)
|
|
|
742 char_u *str;
|
|
|
743 {
|
|
|
744 unsigned id = None;
|
|
|
745
|
|
|
746 sscanf((char *)str, "0x%x", &id);
|
|
|
747 if (id == None)
|
|
|
748 EMSG2(_("E573: Invalid server id used: %s"), str);
|
|
|
749
|
|
|
750 return (Window)id;
|
|
|
751 }
|
|
|
752
|
|
|
753 /*
|
|
|
754 * Send a reply string to client with id "name".
|
|
|
755 * Return -1 if the window is invalid.
|
|
|
756 */
|
|
|
757 int
|
|
|
758 serverSendReply(name, str)
|
|
|
759 char_u *name;
|
|
|
760 char_u *str;
|
|
|
761 {
|
|
|
762 char_u *property;
|
|
|
763 int length;
|
|
|
764 int res;
|
|
|
765 Display *dpy = X_DISPLAY;
|
|
|
766 Window win = serverStrToWin(name);
|
|
|
767
|
|
|
768 if (commProperty == None)
|
|
|
769 {
|
|
|
770 if (SendInit(dpy) < 0)
|
|
|
771 return -2;
|
|
|
772 }
|
|
|
773 if (!WindowValid(dpy, win))
|
|
|
774 return -1;
|
|
|
775
|
|
|
776 length = STRLEN(str) + 7;
|
|
|
777 if ((property = (char_u *)alloc((unsigned) length + 30)) != NULL)
|
|
|
778 {
|
|
|
779 sprintf((char *)property, "%c%c%c-n %s%c-w %x",
|
|
|
780 0, 'n', 0, str, 0, (unsigned int)commWindow);
|
|
|
781 length += STRLEN(property + length);
|
|
|
782 res = AppendPropCarefully(dpy, win, commProperty, property, length + 1);
|
|
|
783 vim_free(property);
|
|
|
784 return res;
|
|
|
785 }
|
|
|
786 return -1;
|
|
|
787 }
|
|
|
788
|
|
|
789 static int
|
|
|
790 WaitForReply(p)
|
|
|
791 void *p;
|
|
|
792 {
|
|
|
793 Window *w = (Window *) p;
|
|
|
794 return ServerReplyFind(*w, SROP_Find) != NULL;
|
|
|
795 }
|
|
|
796
|
|
|
797 /*
|
|
|
798 * Wait for replies from id (win)
|
|
|
799 * Return 0 and the malloc'ed string when a reply is available.
|
|
|
800 * Return -1 if the window becomes invalid while waiting.
|
|
|
801 */
|
|
|
802 int
|
|
|
803 serverReadReply(dpy, win, str, localLoop)
|
|
|
804 Display *dpy;
|
|
|
805 Window win;
|
|
|
806 char_u **str;
|
|
|
807 int localLoop;
|
|
|
808 {
|
|
|
809 int len;
|
|
|
810 char_u *s;
|
|
|
811 struct ServerReply *p;
|
|
|
812
|
|
|
813 ServerWait(dpy, win, WaitForReply, &win, localLoop, -1);
|
|
|
814
|
|
|
815 if ((p = ServerReplyFind(win, SROP_Find)) != NULL && p->strings.ga_len > 0)
|
|
|
816 {
|
|
|
817 *str = vim_strsave(p->strings.ga_data);
|
|
|
818 len = STRLEN(*str) + 1;
|
|
|
819 if (len < p->strings.ga_len)
|
|
|
820 {
|
|
|
821 s = (char_u *) p->strings.ga_data;
|
|
|
822 mch_memmove(s, s + len, p->strings.ga_len - len);
|
|
|
823 p->strings.ga_room += len;
|
|
|
824 p->strings.ga_len -= len;
|
|
|
825 }
|
|
|
826 else
|
|
|
827 {
|
|
|
828 /* Last string read. Remove from list */
|
|
|
829 ga_clear(&p->strings);
|
|
|
830 ServerReplyFind(win, SROP_Delete);
|
|
|
831 }
|
|
|
832 return 0;
|
|
|
833 }
|
|
|
834 return -1;
|
|
|
835 }
|
|
|
836
|
|
|
837 /*
|
|
|
838 * Check for replies from id (win).
|
|
|
839 * Return TRUE and a non-malloc'ed string if there is. Else return FALSE.
|
|
|
840 */
|
|
|
841 int
|
|
|
842 serverPeekReply(dpy, win, str)
|
|
|
843 Display *dpy;
|
|
|
844 Window win;
|
|
|
845 char_u **str;
|
|
|
846 {
|
|
|
847 struct ServerReply *p;
|
|
|
848
|
|
|
849 if ((p = ServerReplyFind(win, SROP_Find)) != NULL && p->strings.ga_len > 0)
|
|
|
850 {
|
|
|
851 if (str != NULL)
|
|
|
852 *str = p->strings.ga_data;
|
|
|
853 return 1;
|
|
|
854 }
|
|
|
855 if (!WindowValid(dpy, win))
|
|
|
856 return -1;
|
|
|
857 return 0;
|
|
|
858 }
|
|
|
859
|
|
|
860
|
|
|
861 /*
|
|
|
862 * Initialize the communication channels for sending commands and receiving
|
|
|
863 * results.
|
|
|
864 */
|
|
|
865 static int
|
|
|
866 SendInit(dpy)
|
|
|
867 Display *dpy;
|
|
|
868 {
|
|
|
869 XErrorHandler old_handler;
|
|
|
870
|
|
|
871 /*
|
|
|
872 * Create the window used for communication, and set up an
|
|
|
873 * event handler for it.
|
|
|
874 */
|
|
|
875 old_handler = XSetErrorHandler(x_error_check);
|
|
|
876 got_x_error = FALSE;
|
|
|
877
|
|
|
878 if (commProperty == None)
|
|
|
879 commProperty = XInternAtom(dpy, "Comm", False);
|
|
|
880 if (vimProperty == None)
|
|
|
881 vimProperty = XInternAtom(dpy, "Vim", False);
|
|
|
882 if (registryProperty == None)
|
|
|
883 registryProperty = XInternAtom(dpy, "VimRegistry", False);
|
|
|
884
|
|
|
885 if (commWindow == None)
|
|
|
886 {
|
|
|
887 commWindow = XCreateSimpleWindow(dpy, XDefaultRootWindow(dpy),
|
|
|
888 getpid(), 0, 10, 10, 0,
|
|
|
889 WhitePixel(dpy, DefaultScreen(dpy)),
|
|
|
890 WhitePixel(dpy, DefaultScreen(dpy)));
|
|
|
891 XSelectInput(dpy, commWindow, PropertyChangeMask);
|
|
|
892 /* WARNING: Do not step through this while debugging, it will hangup
|
|
|
893 * the X server! */
|
|
|
894 XGrabServer(dpy);
|
|
|
895 DeleteAnyLingerer(dpy, commWindow);
|
|
|
896 XUngrabServer(dpy);
|
|
|
897 }
|
|
|
898
|
|
|
899 /* Make window recognizable as a vim window */
|
|
|
900 XChangeProperty(dpy, commWindow, vimProperty, XA_STRING,
|
|
|
901 8, PropModeReplace, (char_u *)VIM_VERSION_SHORT,
|
|
|
902 (int)STRLEN(VIM_VERSION_SHORT) + 1);
|
|
|
903
|
|
|
904 XSync(dpy, False);
|
|
|
905 (void)XSetErrorHandler(old_handler);
|
|
|
906
|
|
|
907 return got_x_error ? -1 : 0;
|
|
|
908 }
|
|
|
909
|
|
|
910 /*
|
|
|
911 * Given a server name, see if the name exists in the registry for a
|
|
|
912 * particular display.
|
|
|
913 *
|
|
|
914 * If the given name is registered, return the ID of the window associated
|
|
|
915 * with the name. If the name isn't registered, then return 0.
|
|
|
916 *
|
|
|
917 * Side effects:
|
|
|
918 * If the registry property is improperly formed, then it is deleted.
|
|
|
919 * If "delete" is non-zero, then if the named server is found it is
|
|
|
920 * removed from the registry property.
|
|
|
921 */
|
|
|
922 static Window
|
|
|
923 LookupName(dpy, name, delete, loose)
|
|
|
924 Display *dpy; /* Display whose registry to check. */
|
|
|
925 char_u *name; /* Name of a server. */
|
|
|
926 int delete; /* If non-zero, delete info about name. */
|
|
|
927 char_u **loose; /* Do another search matching -999 if not found
|
|
|
928 Return result here if a match is found */
|
|
|
929 {
|
|
|
930 char_u *regProp, *entry;
|
|
|
931 char_u *p;
|
|
|
932 long_u numItems;
|
|
|
933 int_u returnValue;
|
|
|
934
|
|
|
935 /*
|
|
|
936 * Read the registry property.
|
|
|
937 */
|
|
|
938 if (GetRegProp(dpy, ®Prop, &numItems, FALSE) == FAIL)
|
|
|
939 return 0;
|
|
|
940
|
|
|
941 /*
|
|
|
942 * Scan the property for the desired name.
|
|
|
943 */
|
|
|
944 returnValue = (int_u)None;
|
|
|
945 entry = NULL; /* Not needed, but eliminates compiler warning. */
|
|
|
946 for (p = regProp; (p - regProp) < numItems; )
|
|
|
947 {
|
|
|
948 entry = p;
|
|
|
949 while (*p != 0 && !isspace(*p))
|
|
|
950 p++;
|
|
|
951 if (*p != 0 && STRICMP(name, p + 1) == 0)
|
|
|
952 {
|
|
|
953 sscanf((char *)entry, "%x", &returnValue);
|
|
|
954 break;
|
|
|
955 }
|
|
|
956 while (*p != 0)
|
|
|
957 p++;
|
|
|
958 p++;
|
|
|
959 }
|
|
|
960
|
|
|
961 if (loose != NULL && returnValue == (int_u)None && !IsSerialName(name))
|
|
|
962 {
|
|
|
963 for (p = regProp; (p - regProp) < numItems; )
|
|
|
964 {
|
|
|
965 entry = p;
|
|
|
966 while (*p != 0 && !isspace(*p))
|
|
|
967 p++;
|
|
|
968 if (*p != 0 && IsSerialName(p + 1)
|
|
|
969 && STRNICMP(name, p + 1, STRLEN(name)) == 0)
|
|
|
970 {
|
|
|
971 sscanf((char *)entry, "%x", &returnValue);
|
|
|
972 *loose = vim_strsave(p + 1);
|
|
|
973 break;
|
|
|
974 }
|
|
|
975 while (*p != 0)
|
|
|
976 p++;
|
|
|
977 p++;
|
|
|
978 }
|
|
|
979 }
|
|
|
980
|
|
|
981 /*
|
|
|
982 * Delete the property, if that is desired (copy down the
|
|
|
983 * remainder of the registry property to overlay the deleted
|
|
|
984 * info, then rewrite the property).
|
|
|
985 */
|
|
|
986 if (delete && returnValue != (int_u)None)
|
|
|
987 {
|
|
|
988 int count;
|
|
|
989
|
|
|
990 while (*p != 0)
|
|
|
991 p++;
|
|
|
992 p++;
|
|
|
993 count = numItems - (p - regProp);
|
|
|
994 if (count > 0)
|
|
|
995 memcpy(entry, p, count);
|
|
|
996 XChangeProperty(dpy, RootWindow(dpy, 0), registryProperty, XA_STRING,
|
|
|
997 8, PropModeReplace, regProp,
|
|
|
998 (int)(numItems - (p - entry)));
|
|
|
999 XSync(dpy, False);
|
|
|
1000 }
|
|
|
1001
|
|
|
1002 if (regProp != empty_prop)
|
|
|
1003 XFree(regProp);
|
|
|
1004 return (Window)returnValue;
|
|
|
1005 }
|
|
|
1006
|
|
|
1007 /*
|
|
|
1008 * Delete any lingering occurences of window id. We promise that any
|
|
|
1009 * occurences is not ours since it is not yet put into the registry (by us)
|
|
|
1010 *
|
|
|
1011 * This is necessary in the following scenario:
|
|
|
1012 * 1. There is an old windowid for an exit'ed vim in the registry
|
|
|
1013 * 2. We get that id for our commWindow but only want to send, not register.
|
|
|
1014 * 3. The window will mistakenly be regarded valid because of own commWindow
|
|
|
1015 */
|
|
|
1016 static void
|
|
|
1017 DeleteAnyLingerer(dpy, win)
|
|
|
1018 Display *dpy; /* Display whose registry to check. */
|
|
|
1019 Window win; /* Window to remove */
|
|
|
1020 {
|
|
|
1021 char_u *regProp, *entry = NULL;
|
|
|
1022 char_u *p;
|
|
|
1023 long_u numItems;
|
|
28
|
1024 int_u wwin;
|
|
7
|
1025
|
|
|
1026 /*
|
|
|
1027 * Read the registry property.
|
|
|
1028 */
|
|
|
1029 if (GetRegProp(dpy, ®Prop, &numItems, FALSE) == FAIL)
|
|
|
1030 return;
|
|
|
1031
|
|
|
1032 /* Scan the property for the window id. */
|
|
|
1033 for (p = regProp; (p - regProp) < numItems; )
|
|
|
1034 {
|
|
|
1035 if (*p != 0)
|
|
|
1036 {
|
|
28
|
1037 sscanf((char *)p, "%x", &wwin);
|
|
|
1038 if ((Window)wwin == win)
|
|
7
|
1039 {
|
|
|
1040 int lastHalf;
|
|
|
1041
|
|
|
1042 /* Copy down the remainder to delete entry */
|
|
|
1043 entry = p;
|
|
|
1044 while (*p != 0)
|
|
|
1045 p++;
|
|
|
1046 p++;
|
|
|
1047 lastHalf = numItems - (p - regProp);
|
|
|
1048 if (lastHalf > 0)
|
|
|
1049 memcpy(entry, p, lastHalf);
|
|
|
1050 numItems = (entry - regProp) + lastHalf;
|
|
|
1051 p = entry;
|
|
|
1052 continue;
|
|
|
1053 }
|
|
|
1054 }
|
|
|
1055 while (*p != 0)
|
|
|
1056 p++;
|
|
|
1057 p++;
|
|
|
1058 }
|
|
|
1059
|
|
|
1060 if (entry != NULL)
|
|
|
1061 {
|
|
|
1062 XChangeProperty(dpy, RootWindow(dpy, 0), registryProperty,
|
|
|
1063 XA_STRING, 8, PropModeReplace, regProp,
|
|
|
1064 (int)(p - regProp));
|
|
|
1065 XSync(dpy, False);
|
|
|
1066 }
|
|
|
1067
|
|
|
1068 if (regProp != empty_prop)
|
|
|
1069 XFree(regProp);
|
|
|
1070 }
|
|
|
1071
|
|
|
1072 /*
|
|
|
1073 * Read the registry property. Delete it when it's formatted wrong.
|
|
|
1074 * Return the property in "regPropp". "empty_prop" is used when it doesn't
|
|
|
1075 * exist yet.
|
|
|
1076 * Return OK when successful.
|
|
|
1077 */
|
|
|
1078 static int
|
|
|
1079 GetRegProp(dpy, regPropp, numItemsp, domsg)
|
|
|
1080 Display *dpy;
|
|
|
1081 char_u **regPropp;
|
|
|
1082 long_u *numItemsp;
|
|
|
1083 int domsg; /* When TRUE give error message. */
|
|
|
1084 {
|
|
|
1085 int result, actualFormat;
|
|
|
1086 long_u bytesAfter;
|
|
|
1087 Atom actualType;
|
|
|
1088
|
|
|
1089 *regPropp = NULL;
|
|
|
1090 result = XGetWindowProperty(dpy, RootWindow(dpy, 0), registryProperty, 0L,
|
|
|
1091 (long)MAX_PROP_WORDS, False,
|
|
|
1092 XA_STRING, &actualType,
|
|
|
1093 &actualFormat, numItemsp, &bytesAfter,
|
|
|
1094 regPropp);
|
|
|
1095
|
|
|
1096 if (actualType == None)
|
|
|
1097 {
|
|
|
1098 /* No prop yet. Logically equal to the empty list */
|
|
|
1099 *numItemsp = 0;
|
|
|
1100 *regPropp = empty_prop;
|
|
|
1101 return OK;
|
|
|
1102 }
|
|
|
1103
|
|
|
1104 /* If the property is improperly formed, then delete it. */
|
|
|
1105 if (result != Success || actualFormat != 8 || actualType != XA_STRING)
|
|
|
1106 {
|
|
|
1107 if (*regPropp != NULL)
|
|
|
1108 XFree(*regPropp);
|
|
|
1109 XDeleteProperty(dpy, RootWindow(dpy, 0), registryProperty);
|
|
|
1110 if (domsg)
|
|
|
1111 EMSG(_("E251: VIM instance registry property is badly formed. Deleted!"));
|
|
|
1112 return FAIL;
|
|
|
1113 }
|
|
|
1114 return OK;
|
|
|
1115 }
|
|
|
1116
|
|
|
1117 /*
|
|
|
1118 * This procedure is invoked by the varous X event loops throughout Vims when
|
|
|
1119 * a property changes on the communication window. This procedure reads the
|
|
|
1120 * property and handles command requests and responses.
|
|
|
1121 */
|
|
|
1122 void
|
|
|
1123 serverEventProc(dpy, eventPtr)
|
|
|
1124 Display *dpy;
|
|
|
1125 XEvent *eventPtr; /* Information about event. */
|
|
|
1126 {
|
|
|
1127 char_u *propInfo;
|
|
|
1128 char_u *p;
|
|
|
1129 int result, actualFormat, code;
|
|
|
1130 long_u numItems, bytesAfter;
|
|
|
1131 Atom actualType;
|
|
|
1132
|
|
|
1133 if (eventPtr != NULL)
|
|
|
1134 {
|
|
|
1135 if (eventPtr->xproperty.atom != commProperty
|
|
|
1136 || eventPtr->xproperty.state != PropertyNewValue)
|
|
|
1137 return;
|
|
|
1138 }
|
|
|
1139
|
|
|
1140 /*
|
|
|
1141 * Read the comm property and delete it.
|
|
|
1142 */
|
|
|
1143 propInfo = NULL;
|
|
|
1144 result = XGetWindowProperty(dpy, commWindow, commProperty, 0L,
|
|
|
1145 (long)MAX_PROP_WORDS, True,
|
|
|
1146 XA_STRING, &actualType,
|
|
|
1147 &actualFormat, &numItems, &bytesAfter,
|
|
|
1148 &propInfo);
|
|
|
1149
|
|
|
1150 /* If the property doesn't exist or is improperly formed then ignore it. */
|
|
|
1151 if (result != Success || actualType != XA_STRING || actualFormat != 8)
|
|
|
1152 {
|
|
|
1153 if (propInfo != NULL)
|
|
|
1154 XFree(propInfo);
|
|
|
1155 return;
|
|
|
1156 }
|
|
|
1157
|
|
|
1158 /*
|
|
|
1159 * Several commands and results could arrive in the property at
|
|
|
1160 * one time; each iteration through the outer loop handles a
|
|
|
1161 * single command or result.
|
|
|
1162 */
|
|
|
1163 for (p = propInfo; (p - propInfo) < numItems; )
|
|
|
1164 {
|
|
|
1165 /*
|
|
|
1166 * Ignore leading NULs; each command or result starts with a
|
|
|
1167 * NUL so that no matter how badly formed a preceding command
|
|
|
1168 * is, we'll be able to tell that a new command/result is
|
|
|
1169 * starting.
|
|
|
1170 */
|
|
|
1171 if (*p == 0)
|
|
|
1172 {
|
|
|
1173 p++;
|
|
|
1174 continue;
|
|
|
1175 }
|
|
|
1176
|
|
|
1177 if ((*p == 'c' || *p == 'k') && (p[1] == 0))
|
|
|
1178 {
|
|
|
1179 Window resWindow;
|
|
|
1180 char_u *name, *script, *serial, *end, *res;
|
|
|
1181 Bool asKeys = *p == 'k';
|
|
|
1182 garray_T reply;
|
|
|
1183
|
|
|
1184 /*
|
|
|
1185 * This is an incoming command from some other application.
|
|
|
1186 * Iterate over all of its options. Stop when we reach
|
|
|
1187 * the end of the property or something that doesn't look
|
|
|
1188 * like an option.
|
|
|
1189 */
|
|
|
1190 p += 2;
|
|
|
1191 name = NULL;
|
|
|
1192 resWindow = None;
|
|
|
1193 serial = (char_u *)"";
|
|
|
1194 script = NULL;
|
|
|
1195 while (p - propInfo < numItems && *p == '-')
|
|
|
1196 {
|
|
|
1197 switch (p[1])
|
|
|
1198 {
|
|
|
1199 case 'r':
|
|
|
1200 end = skipwhite(p + 2);
|
|
|
1201 resWindow = 0;
|
|
|
1202 while (vim_isxdigit(*end))
|
|
|
1203 {
|
|
|
1204 resWindow = 16 * resWindow + (long_u)hex2nr(*end);
|
|
|
1205 ++end;
|
|
|
1206 }
|
|
|
1207 if (end == p + 2 || *end != ' ')
|
|
|
1208 resWindow = None;
|
|
|
1209 else
|
|
|
1210 {
|
|
|
1211 p = serial = end + 1;
|
|
|
1212 clientWindow = resWindow; /* Remember in global */
|
|
|
1213 }
|
|
|
1214 break;
|
|
|
1215 case 'n':
|
|
|
1216 if (p[2] == ' ')
|
|
|
1217 name = p + 3;
|
|
|
1218 break;
|
|
|
1219 case 's':
|
|
|
1220 if (p[2] == ' ')
|
|
|
1221 script = p + 3;
|
|
|
1222 break;
|
|
|
1223 }
|
|
|
1224 while (*p != 0)
|
|
|
1225 p++;
|
|
|
1226 p++;
|
|
|
1227 }
|
|
|
1228
|
|
|
1229 if (script == NULL || name == NULL)
|
|
|
1230 continue;
|
|
|
1231
|
|
|
1232 /*
|
|
|
1233 * Initialize the result property, so that we're ready at any
|
|
|
1234 * time if we need to return an error.
|
|
|
1235 */
|
|
|
1236 if (resWindow != None)
|
|
|
1237 {
|
|
|
1238 ga_init2(&reply, 1, 100);
|
|
|
1239 ga_grow(&reply, 50);
|
|
|
1240 sprintf(reply.ga_data, "%cr%c-s %s%c-r ", 0, 0, serial, 0);
|
|
|
1241 reply.ga_len = 10 + STRLEN(serial);
|
|
|
1242 reply.ga_room -= reply.ga_len;
|
|
|
1243 }
|
|
|
1244 res = NULL;
|
|
|
1245 if (serverName != NULL && STRICMP(name, serverName) == 0)
|
|
|
1246 {
|
|
|
1247 if (asKeys)
|
|
|
1248 server_to_input_buf(script);
|
|
|
1249 else
|
|
|
1250 res = eval_client_expr_to_string(script);
|
|
|
1251 }
|
|
|
1252 if (resWindow != None)
|
|
|
1253 {
|
|
|
1254 if (res != NULL)
|
|
|
1255 ga_concat(&reply, res);
|
|
|
1256 else if (asKeys == 0)
|
|
|
1257 {
|
|
|
1258 ga_concat(&reply, (char_u *)_(e_invexprmsg));
|
|
|
1259 ga_append(&reply, 0);
|
|
|
1260 ga_concat(&reply, (char_u *)"-c 1");
|
|
|
1261 }
|
|
21
|
1262 ga_append(&reply, NUL);
|
|
7
|
1263 (void)AppendPropCarefully(dpy, resWindow, commProperty,
|
|
|
1264 reply.ga_data, reply.ga_len);
|
|
|
1265 }
|
|
|
1266 vim_free(res);
|
|
|
1267 }
|
|
|
1268 else if (*p == 'r' && p[1] == 0)
|
|
|
1269 {
|
|
|
1270 int serial, gotSerial;
|
|
|
1271 char_u *res;
|
|
|
1272 PendingCommand *pcPtr;
|
|
|
1273
|
|
|
1274 /*
|
|
|
1275 * This is a reply to some command that we sent out. Iterate
|
|
|
1276 * over all of its options. Stop when we reach the end of the
|
|
|
1277 * property or something that doesn't look like an option.
|
|
|
1278 */
|
|
|
1279 p += 2;
|
|
|
1280 gotSerial = 0;
|
|
|
1281 res = (char_u *)"";
|
|
|
1282 code = 0;
|
|
|
1283 while ((p-propInfo) < numItems && *p == '-')
|
|
|
1284 {
|
|
|
1285 switch (p[1])
|
|
|
1286 {
|
|
|
1287 case 'r':
|
|
|
1288 if (p[2] == ' ')
|
|
|
1289 res = p + 3;
|
|
|
1290 break;
|
|
|
1291 case 's':
|
|
|
1292 if (sscanf((char *)p + 2, " %d", &serial) == 1)
|
|
|
1293 gotSerial = 1;
|
|
|
1294 break;
|
|
|
1295 case 'c':
|
|
|
1296 if (sscanf((char *)p + 2, " %d", &code) != 1)
|
|
|
1297 code = 0;
|
|
|
1298 break;
|
|
|
1299 }
|
|
|
1300 while (*p != 0)
|
|
|
1301 p++;
|
|
|
1302 p++;
|
|
|
1303 }
|
|
|
1304
|
|
|
1305 if (!gotSerial)
|
|
|
1306 continue;
|
|
|
1307
|
|
|
1308 /*
|
|
|
1309 * Give the result information to anyone who's
|
|
|
1310 * waiting for it.
|
|
|
1311 */
|
|
|
1312 for (pcPtr = pendingCommands; pcPtr != NULL; pcPtr = pcPtr->nextPtr)
|
|
|
1313 {
|
|
|
1314 if (serial != pcPtr->serial || pcPtr->result != NULL)
|
|
|
1315 continue;
|
|
|
1316
|
|
|
1317 pcPtr->code = code;
|
|
|
1318 if (res != NULL)
|
|
|
1319 pcPtr->result = vim_strsave(res);
|
|
|
1320 else
|
|
|
1321 pcPtr->result = vim_strsave((char_u *)"");
|
|
|
1322 break;
|
|
|
1323 }
|
|
|
1324 }
|
|
|
1325 else if (*p == 'n' && p[1] == 0)
|
|
|
1326 {
|
|
|
1327 Window win = 0;
|
|
|
1328 unsigned int u;
|
|
|
1329 int gotWindow;
|
|
|
1330 char_u *str;
|
|
|
1331 char_u winstr[30];
|
|
|
1332 struct ServerReply *r;
|
|
|
1333
|
|
|
1334 /*
|
|
|
1335 * This is a (n)otification. Sent with serverreply_send in VimL.
|
|
|
1336 * Execute any autocommand and save it for later retrieval
|
|
|
1337 */
|
|
|
1338 p += 2;
|
|
|
1339 gotWindow = 0;
|
|
|
1340 str = (char_u *)"";
|
|
|
1341 while ((p-propInfo) < numItems && *p == '-')
|
|
|
1342 {
|
|
|
1343 switch (p[1])
|
|
|
1344 {
|
|
|
1345 case 'n':
|
|
|
1346 if (p[2] == ' ')
|
|
|
1347 str = p + 3;
|
|
|
1348 break;
|
|
|
1349 case 'w':
|
|
|
1350 if (sscanf((char *)p + 2, " %x", &u) == 1)
|
|
|
1351 {
|
|
|
1352 win = u;
|
|
|
1353 gotWindow = 1;
|
|
|
1354 }
|
|
|
1355 break;
|
|
|
1356 }
|
|
|
1357 while (*p != 0)
|
|
|
1358 p++;
|
|
|
1359 p++;
|
|
|
1360 }
|
|
|
1361
|
|
|
1362 if (!gotWindow)
|
|
|
1363 continue;
|
|
|
1364 if ((r = ServerReplyFind(win, SROP_Add)) != NULL)
|
|
|
1365 {
|
|
|
1366 ga_concat(&(r->strings), str);
|
|
21
|
1367 ga_append(&(r->strings), NUL);
|
|
7
|
1368 }
|
|
|
1369 #ifdef FEAT_AUTOCMD
|
|
|
1370 sprintf((char *)winstr, "0x%x", (unsigned int)win);
|
|
|
1371 apply_autocmds(EVENT_REMOTEREPLY, winstr, str, TRUE, curbuf);
|
|
|
1372 #endif
|
|
|
1373
|
|
|
1374 }
|
|
|
1375 else
|
|
|
1376 {
|
|
|
1377 /*
|
|
|
1378 * Didn't recognize this thing. Just skip through the next
|
|
|
1379 * null character and try again.
|
|
|
1380 * Even if we get an 'r'(eply) we will throw it away as we
|
|
|
1381 * never specify (and thus expect) one
|
|
|
1382 */
|
|
|
1383 while (*p != 0)
|
|
|
1384 p++;
|
|
|
1385 p++;
|
|
|
1386 }
|
|
|
1387 }
|
|
|
1388 XFree(propInfo);
|
|
|
1389 }
|
|
|
1390
|
|
|
1391 /*
|
|
|
1392 * Append a given property to a given window, but set up an X error handler so
|
|
|
1393 * that if the append fails this procedure can return an error code rather
|
|
|
1394 * than having Xlib panic.
|
|
|
1395 * Return: 0 for OK, -1 for error
|
|
|
1396 */
|
|
|
1397 static int
|
|
|
1398 AppendPropCarefully(dpy, window, property, value, length)
|
|
|
1399 Display *dpy; /* Display on which to operate. */
|
|
|
1400 Window window; /* Window whose property is to be modified. */
|
|
|
1401 Atom property; /* Name of property. */
|
|
|
1402 char_u *value; /* Characters to append to property. */
|
|
|
1403 int length; /* How much to append */
|
|
|
1404 {
|
|
|
1405 XErrorHandler old_handler;
|
|
|
1406
|
|
|
1407 old_handler = XSetErrorHandler(x_error_check);
|
|
|
1408 got_x_error = FALSE;
|
|
|
1409 XChangeProperty(dpy, window, property, XA_STRING, 8,
|
|
|
1410 PropModeAppend, value, length);
|
|
|
1411 XSync(dpy, False);
|
|
|
1412 (void) XSetErrorHandler(old_handler);
|
|
|
1413 return got_x_error ? -1 : 0;
|
|
|
1414 }
|
|
|
1415
|
|
|
1416
|
|
|
1417 /*
|
|
|
1418 * Another X Error handler, just used to check for errors.
|
|
|
1419 */
|
|
|
1420 /* ARGSUSED */
|
|
|
1421 static int
|
|
|
1422 x_error_check(dpy, error_event)
|
|
|
1423 Display *dpy;
|
|
|
1424 XErrorEvent *error_event;
|
|
|
1425 {
|
|
|
1426 got_x_error = TRUE;
|
|
|
1427 return 0;
|
|
|
1428 }
|
|
|
1429
|
|
|
1430 /*
|
|
|
1431 * Check if "str" looks like it had a serial number appended.
|
|
|
1432 * Actually just checks if the name ends in a digit.
|
|
|
1433 */
|
|
|
1434 static int
|
|
|
1435 IsSerialName(str)
|
|
|
1436 char_u *str;
|
|
|
1437 {
|
|
|
1438 int len = STRLEN(str);
|
|
|
1439
|
|
|
1440 return (len > 1 && vim_isdigit(str[len - 1]));
|
|
|
1441 }
|
|
|
1442 #endif /* FEAT_CLIENTSERVER */
|
