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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 /*
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1121
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25 * This file provides procedures that implement the command server
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26 * functionality of Vim when in contact with an X11 server.
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7
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27 *
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28 * Adapted from TCL/TK's send command in tkSend.c of the tk 3.6 distribution.
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29 * Adapted for use in Vim by Flemming Madsen. Protocol changed to that of tk 4
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30 */
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31
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32 /*
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33 * Copyright (c) 1989-1993 The Regents of the University of California.
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34 * All rights reserved.
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35 *
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36 * Permission is hereby granted, without written agreement and without
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37 * license or royalty fees, to use, copy, modify, and distribute this
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38 * software and its documentation for any purpose, provided that the
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39 * above copyright notice and the following two paragraphs appear in
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40 * all copies of this software.
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41 *
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42 * IN NO EVENT SHALL THE UNIVERSITY OF CALIFORNIA BE LIABLE TO ANY PARTY FOR
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43 * DIRECT, INDIRECT, SPECIAL, INCIDENTAL, OR CONSEQUENTIAL DAMAGES ARISING OUT
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44 * OF THE USE OF THIS SOFTWARE AND ITS DOCUMENTATION, EVEN IF THE UNIVERSITY OF
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45 * CALIFORNIA HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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46 *
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47 * THE UNIVERSITY OF CALIFORNIA SPECIFICALLY DISCLAIMS ANY WARRANTIES,
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48 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
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49 * AND FITNESS FOR A PARTICULAR PURPOSE. THE SOFTWARE PROVIDED HEREUNDER IS
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50 * ON AN "AS IS" BASIS, AND THE UNIVERSITY OF CALIFORNIA HAS NO OBLIGATION TO
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51 * PROVIDE MAINTENANCE, SUPPORT, UPDATES, ENHANCEMENTS, OR MODIFICATIONS.
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52 */
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53
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54
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55 /*
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56 * When a result is being awaited from a sent command, one of
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57 * the following structures is present on a list of all outstanding
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58 * sent commands. The information in the structure is used to
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59 * process the result when it arrives. You're probably wondering
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60 * how there could ever be multiple outstanding sent commands.
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61 * This could happen if Vim instances invoke each other recursively.
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62 * It's unlikely, but possible.
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63 */
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64
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65 typedef struct PendingCommand
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66 {
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67 int serial; /* Serial number expected in result. */
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68 int code; /* Result Code. 0 is OK */
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69 char_u *result; /* String result for command (malloc'ed).
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70 * NULL means command still pending. */
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71 struct PendingCommand *nextPtr;
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72 /* Next in list of all outstanding commands.
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73 * NULL means end of list. */
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74 } PendingCommand;
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75
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76 static PendingCommand *pendingCommands = NULL;
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77 /* List of all commands currently
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78 * being waited for. */
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79
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80 /*
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81 * The information below is used for communication between processes
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82 * during "send" commands. Each process keeps a private window, never
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83 * even mapped, with one property, "Comm". When a command is sent to
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84 * an interpreter, the command is appended to the comm property of the
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85 * communication window associated with the interp's process. Similarly,
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86 * when a result is returned from a sent command, it is also appended
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87 * to the comm property.
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88 *
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89 * Each command and each result takes the form of ASCII text. For a
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90 * command, the text consists of a nul character followed by several
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39
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91 * nul-terminated ASCII strings. The first string consists of a
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92 * single letter:
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93 * "c" for an expression
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94 * "k" for keystrokes
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95 * "r" for reply
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96 * "n" for notification.
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97 * Subsequent strings have the form "option value" where the following options
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98 * are supported:
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7
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99 *
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100 * -r commWindow serial
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101 *
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102 * This option means that a response should be sent to the window
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103 * whose X identifier is "commWindow" (in hex), and the response should
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104 * be identified with the serial number given by "serial" (in decimal).
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105 * If this option isn't specified then the send is asynchronous and
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106 * no response is sent.
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107 *
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108 * -n name
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109 * "Name" gives the name of the application for which the command is
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110 * intended. This option must be present.
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111 *
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39
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112 * -E encoding
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113 * Encoding name used for the text. This is the 'encoding' of the
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114 * sender. The receiver may want to do conversion to his 'encoding'.
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115 *
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7
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116 * -s script
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117 * "Script" is the script to be executed. This option must be
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118 * present. Taken as a series of keystrokes in a "k" command where
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119 * <Key>'s are expanded
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120 *
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121 * The options may appear in any order. The -n and -s options must be
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122 * present, but -r may be omitted for asynchronous RPCs. For compatibility
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123 * with future releases that may add new features, there may be additional
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124 * options present; as long as they start with a "-" character, they will
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125 * be ignored.
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126 *
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127 * A result also consists of a zero character followed by several null-
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128 * terminated ASCII strings. The first string consists of the single
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129 * letter "r". Subsequent strings have the form "option value" where
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130 * the following options are supported:
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131 *
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132 * -s serial
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133 * Identifies the command for which this is the result. It is the
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134 * same as the "serial" field from the -s option in the command. This
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135 * option must be present.
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136 *
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137 * -r result
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138 * "Result" is the result string for the script, which may be either
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139 * a result or an error message. If this field is omitted then it
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140 * defaults to an empty string.
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141 *
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142 * -c code
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143 * 0: for OK. This is the default.
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144 * 1: for error: Result is the last error
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145 *
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146 * -i errorInfo
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147 * -e errorCode
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148 * Not applicable for Vim
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149 *
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150 * Options may appear in any order, and only the -s option must be
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151 * present. As with commands, there may be additional options besides
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152 * these; unknown options are ignored.
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153 */
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154
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155 /*
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156 * Maximum size property that can be read at one time by
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157 * this module:
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158 */
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159
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160 #define MAX_PROP_WORDS 100000
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161
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162 struct ServerReply
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163 {
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164 Window id;
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165 garray_T strings;
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166 };
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167 static garray_T serverReply = { 0, 0, 0, 0, 0 };
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168 enum ServerReplyOp { SROP_Find, SROP_Add, SROP_Delete };
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169
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170 typedef int (*EndCond) __ARGS((void *));
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171
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172 /*
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173 * Forward declarations for procedures defined later in this file:
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174 */
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175
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176 static Window LookupName __ARGS((Display *dpy, char_u *name, int delete, char_u **loose));
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177 static int SendInit __ARGS((Display *dpy));
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178 static int DoRegisterName __ARGS((Display *dpy, char_u *name));
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179 static void DeleteAnyLingerer __ARGS((Display *dpy, Window w));
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180 static int GetRegProp __ARGS((Display *dpy, char_u **regPropp, long_u *numItemsp, int domsg));
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181 static int WaitForPend __ARGS((void *p));
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182 static int WaitForReply __ARGS((void *p));
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183 static int WindowValid __ARGS((Display *dpy, Window w));
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184 static void ServerWait __ARGS((Display *dpy, Window w, EndCond endCond, void *endData, int localLoop, int seconds));
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185 static struct ServerReply *ServerReplyFind __ARGS((Window w, enum ServerReplyOp op));
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186 static int AppendPropCarefully __ARGS((Display *display, Window window, Atom property, char_u *value, int length));
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187 static int x_error_check __ARGS((Display *dpy, XErrorEvent *error_event));
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188 static int IsSerialName __ARGS((char_u *name));
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189
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190 /* Private variables for the "server" functionality */
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191 static Atom registryProperty = None;
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192 static Atom vimProperty = None;
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193 static int got_x_error = FALSE;
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194
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195 static char_u *empty_prop = (char_u *)""; /* empty GetRegProp() result */
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196
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197 /*
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198 * Associate an ASCII name with Vim. Try real hard to get a unique one.
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199 * Returns FAIL or OK.
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200 */
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201 int
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202 serverRegisterName(dpy, name)
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203 Display *dpy; /* display to register with */
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204 char_u *name; /* the name that will be used as a base */
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205 {
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206 int i;
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207 int res;
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208 char_u *p = NULL;
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209
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210 res = DoRegisterName(dpy, name);
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211 if (res < 0)
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212 {
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213 i = 1;
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214 do
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215 {
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216 if (res < -1 || i >= 1000)
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217 {
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218 MSG_ATTR(_("Unable to register a command server name"),
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219 hl_attr(HLF_W));
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220 return FAIL;
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221 }
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222 if (p == NULL)
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223 p = alloc(STRLEN(name) + 10);
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224 if (p == NULL)
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225 {
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226 res = -10;
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227 continue;
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228 }
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229 sprintf((char *)p, "%s%d", name, i++);
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230 res = DoRegisterName(dpy, p);
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231 }
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232 while (res < 0)
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233 ;
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234 vim_free(p);
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235 }
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236 return OK;
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237 }
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238
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239 static int
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240 DoRegisterName(dpy, name)
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241 Display *dpy;
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242 char_u *name;
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243 {
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244 Window w;
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245 XErrorHandler old_handler;
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246 #define MAX_NAME_LENGTH 100
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247 char_u propInfo[MAX_NAME_LENGTH + 20];
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248
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249 if (commProperty == None)
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250 {
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251 if (SendInit(dpy) < 0)
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252 return -2;
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253 }
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254
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255 /*
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256 * Make sure the name is unique, and append info about it to
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257 * the registry property. It's important to lock the server
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258 * here to prevent conflicting changes to the registry property.
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259 * WARNING: Do not step through this while debugging, it will hangup the X
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260 * server!
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261 */
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262 XGrabServer(dpy);
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263 w = LookupName(dpy, name, FALSE, NULL);
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264 if (w != (Window)0)
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265 {
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266 Status status;
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267 int dummyInt;
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268 unsigned int dummyUns;
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269 Window dummyWin;
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270
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271 /*
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272 * The name is currently registered. See if the commWindow
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273 * associated with the name exists. If not, or if the commWindow
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274 * is *our* commWindow, then just unregister the old name (this
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275 * could happen if an application dies without cleaning up the
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276 * registry).
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277 */
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278 old_handler = XSetErrorHandler(x_error_check);
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279 status = XGetGeometry(dpy, w, &dummyWin, &dummyInt, &dummyInt,
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280 &dummyUns, &dummyUns, &dummyUns, &dummyUns);
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281 (void)XSetErrorHandler(old_handler);
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282 if (status != Success && w != commWindow)
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283 {
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284 XUngrabServer(dpy);
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285 XFlush(dpy);
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286 return -1;
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287 }
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288 (void)LookupName(dpy, name, /*delete=*/TRUE, NULL);
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289 }
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290 sprintf((char *)propInfo, "%x %.*s", (int_u)commWindow,
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291 MAX_NAME_LENGTH, name);
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292 old_handler = XSetErrorHandler(x_error_check);
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293 got_x_error = FALSE;
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294 XChangeProperty(dpy, RootWindow(dpy, 0), registryProperty, XA_STRING, 8,
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295 PropModeAppend, propInfo, STRLEN(propInfo) + 1);
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296 XUngrabServer(dpy);
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297 XSync(dpy, False);
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298 (void)XSetErrorHandler(old_handler);
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299
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300 if (!got_x_error)
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301 {
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302 #ifdef FEAT_EVAL
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303 set_vim_var_string(VV_SEND_SERVER, name, -1);
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304 #endif
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305 serverName = vim_strsave(name);
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306 #ifdef FEAT_TITLE
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307 need_maketitle = TRUE;
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308 #endif
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309 return 0;
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310 }
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311 return -2;
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312 }
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313
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314 #if defined(FEAT_GUI) || defined(PROTO)
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315 /*
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316 * Clean out new ID from registry and set it as comm win.
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317 * Change any registered window ID.
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318 */
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319 void
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320 serverChangeRegisteredWindow(dpy, newwin)
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321 Display *dpy; /* Display to register with */
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322 Window newwin; /* Re-register to this ID */
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323 {
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324 char_u propInfo[MAX_NAME_LENGTH + 20];
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325
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326 commWindow = newwin;
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327
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328 /* Always call SendInit() here, to make sure commWindow is marked as a Vim
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329 * window. */
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330 if (SendInit(dpy) < 0)
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331 return;
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332
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333 /* WARNING: Do not step through this while debugging, it will hangup the X
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334 * server! */
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335 XGrabServer(dpy);
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336 DeleteAnyLingerer(dpy, newwin);
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337 if (serverName != NULL)
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338 {
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339 /* Reinsert name if we was already registered */
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340 (void)LookupName(dpy, serverName, /*delete=*/TRUE, NULL);
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341 sprintf((char *)propInfo, "%x %.*s",
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342 (int_u)newwin, MAX_NAME_LENGTH, serverName);
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343 XChangeProperty(dpy, RootWindow(dpy, 0), registryProperty, XA_STRING, 8,
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344 PropModeAppend, (char_u *)propInfo,
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345 STRLEN(propInfo) + 1);
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346 }
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347 XUngrabServer(dpy);
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348 }
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349 #endif
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350
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351 /*
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352 * Send to an instance of Vim via the X display.
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353 * Returns 0 for OK, negative for an error.
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354 */
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355 int
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356 serverSendToVim(dpy, name, cmd, result, server, asExpr, localLoop, silent)
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357 Display *dpy; /* Where to send. */
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358 char_u *name; /* Where to send. */
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359 char_u *cmd; /* What to send. */
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360 char_u **result; /* Result of eval'ed expression */
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361 Window *server; /* Actual ID of receiving app */
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362 Bool asExpr; /* Interpret as keystrokes or expr ? */
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363 Bool localLoop; /* Throw away everything but result */
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364 int silent; /* don't complain about no server */
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365 {
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366 Window w;
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367 char_u *property;
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368 int length;
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369 int res;
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370 static int serial = 0; /* Running count of sent commands.
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371 * Used to give each command a
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372 * different serial number. */
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373 PendingCommand pending;
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374 char_u *loosename = NULL;
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375
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376 if (result != NULL)
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377 *result = NULL;
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378 if (name == NULL || *name == NUL)
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379 name = (char_u *)"GVIM"; /* use a default name */
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380
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381 if (commProperty == None && dpy != NULL)
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382 {
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383 if (SendInit(dpy) < 0)
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384 return -1;
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385 }
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386
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387 /* Execute locally if no display or target is ourselves */
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388 if (dpy == NULL || (serverName != NULL && STRICMP(name, serverName) == 0))
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389 {
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390 if (asExpr)
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391 {
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392 char_u *ret;
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393
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394 ret = eval_client_expr_to_string(cmd);
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395 if (result != NULL)
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396 {
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397 if (ret == NULL)
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398 *result = vim_strsave((char_u *)_(e_invexprmsg));
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399 else
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400 *result = ret;
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401 }
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402 else
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403 vim_free(ret);
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404 return ret == NULL ? -1 : 0;
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405 }
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406 else
|
|
|
407 server_to_input_buf(cmd);
|
|
|
408 return 0;
|
|
|
409 }
|
|
|
410
|
|
|
411 /*
|
|
|
412 * Bind the server name to a communication window.
|
|
|
413 *
|
|
|
414 * Find any survivor with a serialno attached to the name if the
|
|
|
415 * original registrant of the wanted name is no longer present.
|
|
|
416 *
|
|
|
417 * Delete any lingering names from dead editors.
|
|
|
418 */
|
|
|
419 while (TRUE)
|
|
|
420 {
|
|
|
421 w = LookupName(dpy, name, FALSE, &loosename);
|
|
|
422 /* Check that the window is hot */
|
|
|
423 if (w != None)
|
|
|
424 {
|
|
|
425 if (!WindowValid(dpy, w))
|
|
|
426 {
|
|
|
427 LookupName(dpy, loosename ? loosename : name,
|
|
|
428 /*DELETE=*/TRUE, NULL);
|
|
|
429 continue;
|
|
|
430 }
|
|
|
431 }
|
|
|
432 break;
|
|
|
433 }
|
|
|
434 if (w == None)
|
|
|
435 {
|
|
|
436 if (!silent)
|
|
|
437 EMSG2(_(e_noserver), name);
|
|
|
438 return -1;
|
|
|
439 }
|
|
|
440 else if (loosename != NULL)
|
|
|
441 name = loosename;
|
|
|
442 if (server != NULL)
|
|
|
443 *server = w;
|
|
|
444
|
|
|
445 /*
|
|
|
446 * Send the command to target interpreter by appending it to the
|
|
|
447 * comm window in the communication window.
|
|
500
|
448 * Length must be computed exactly!
|
|
7
|
449 */
|
|
39
|
450 #ifdef FEAT_MBYTE
|
|
500
|
451 length = STRLEN(name) + STRLEN(p_enc) + STRLEN(cmd) + 14;
|
|
|
452 #else
|
|
|
453 length = STRLEN(name) + STRLEN(cmd) + 10;
|
|
39
|
454 #endif
|
|
|
455 property = (char_u *)alloc((unsigned)length + 30);
|
|
7
|
456
|
|
39
|
457 #ifdef FEAT_MBYTE
|
|
|
458 sprintf((char *)property, "%c%c%c-n %s%c-E %s%c-s %s",
|
|
|
459 0, asExpr ? 'c' : 'k', 0, name, 0, p_enc, 0, cmd);
|
|
|
460 #else
|
|
7
|
461 sprintf((char *)property, "%c%c%c-n %s%c-s %s",
|
|
|
462 0, asExpr ? 'c' : 'k', 0, name, 0, cmd);
|
|
39
|
463 #endif
|
|
7
|
464 if (name == loosename)
|
|
|
465 vim_free(loosename);
|
|
|
466 /* Add a back reference to our comm window */
|
|
|
467 serial++;
|
|
|
468 sprintf((char *)property + length, "%c-r %x %d",
|
|
|
469 0, (int_u)commWindow, serial);
|
|
500
|
470 /* Add length of what "-r %x %d" resulted in, skipping the NUL. */
|
|
7
|
471 length += STRLEN(property + length + 1) + 1;
|
|
|
472
|
|
|
473 res = AppendPropCarefully(dpy, w, commProperty, property, length + 1);
|
|
|
474 vim_free(property);
|
|
|
475 if (res < 0)
|
|
|
476 {
|
|
|
477 EMSG(_("E248: Failed to send command to the destination program"));
|
|
|
478 return -1;
|
|
|
479 }
|
|
|
480
|
|
|
481 if (!asExpr) /* There is no answer for this - Keys are sent async */
|
|
|
482 return 0;
|
|
|
483
|
|
|
484 /*
|
|
|
485 * Register the fact that we're waiting for a command to
|
|
|
486 * complete (this is needed by SendEventProc and by
|
|
|
487 * AppendErrorProc to pass back the command's results).
|
|
|
488 */
|
|
|
489 pending.serial = serial;
|
|
|
490 pending.code = 0;
|
|
|
491 pending.result = NULL;
|
|
|
492 pending.nextPtr = pendingCommands;
|
|
|
493 pendingCommands = &pending;
|
|
|
494
|
|
|
495 ServerWait(dpy, w, WaitForPend, &pending, localLoop, 600);
|
|
|
496
|
|
|
497 /*
|
|
|
498 * Unregister the information about the pending command
|
|
|
499 * and return the result.
|
|
|
500 */
|
|
|
501 if (pendingCommands == &pending)
|
|
|
502 pendingCommands = pending.nextPtr;
|
|
|
503 else
|
|
|
504 {
|
|
|
505 PendingCommand *pcPtr;
|
|
|
506
|
|
|
507 for (pcPtr = pendingCommands; pcPtr != NULL; pcPtr = pcPtr->nextPtr)
|
|
|
508 if (pcPtr->nextPtr == &pending)
|
|
|
509 {
|
|
|
510 pcPtr->nextPtr = pending.nextPtr;
|
|
|
511 break;
|
|
|
512 }
|
|
|
513 }
|
|
|
514 if (result != NULL)
|
|
|
515 *result = pending.result;
|
|
|
516 else
|
|
|
517 vim_free(pending.result);
|
|
|
518
|
|
|
519 return pending.code == 0 ? 0 : -1;
|
|
|
520 }
|
|
|
521
|
|
|
522 static int
|
|
|
523 WaitForPend(p)
|
|
|
524 void *p;
|
|
|
525 {
|
|
|
526 PendingCommand *pending = (PendingCommand *) p;
|
|
|
527 return pending->result != NULL;
|
|
|
528 }
|
|
|
529
|
|
|
530 /*
|
|
|
531 * Return TRUE if window "w" exists and has a "Vim" property on it.
|
|
|
532 */
|
|
|
533 static int
|
|
|
534 WindowValid(dpy, w)
|
|
|
535 Display *dpy;
|
|
|
536 Window w;
|
|
|
537 {
|
|
|
538 XErrorHandler old_handler;
|
|
|
539 Atom *plist;
|
|
|
540 int numProp;
|
|
|
541 int i;
|
|
|
542
|
|
|
543 old_handler = XSetErrorHandler(x_error_check);
|
|
|
544 got_x_error = 0;
|
|
|
545 plist = XListProperties(dpy, w, &numProp);
|
|
|
546 XSync(dpy, False);
|
|
|
547 XSetErrorHandler(old_handler);
|
|
|
548 if (plist == NULL || got_x_error)
|
|
|
549 return FALSE;
|
|
|
550
|
|
|
551 for (i = 0; i < numProp; i++)
|
|
|
552 if (plist[i] == vimProperty)
|
|
|
553 {
|
|
|
554 XFree(plist);
|
|
|
555 return TRUE;
|
|
|
556 }
|
|
|
557 XFree(plist);
|
|
|
558 return FALSE;
|
|
|
559 }
|
|
|
560
|
|
|
561 /*
|
|
|
562 * Enter a loop processing X events & polling chars until we see a result
|
|
|
563 */
|
|
|
564 static void
|
|
|
565 ServerWait(dpy, w, endCond, endData, localLoop, seconds)
|
|
|
566 Display *dpy;
|
|
|
567 Window w;
|
|
|
568 EndCond endCond;
|
|
|
569 void *endData;
|
|
|
570 int localLoop;
|
|
|
571 int seconds;
|
|
|
572 {
|
|
|
573 time_t start;
|
|
|
574 time_t now;
|
|
|
575 time_t lastChk = 0;
|
|
|
576 XEvent event;
|
|
|
577 XPropertyEvent *e = (XPropertyEvent *)&event;
|
|
|
578 # define SEND_MSEC_POLL 50
|
|
|
579
|
|
|
580 time(&start);
|
|
|
581 while (endCond(endData) == 0)
|
|
|
582 {
|
|
|
583 time(&now);
|
|
|
584 if (seconds >= 0 && (now - start) >= seconds)
|
|
|
585 break;
|
|
|
586 if (now != lastChk)
|
|
|
587 {
|
|
|
588 lastChk = now;
|
|
|
589 if (!WindowValid(dpy, w))
|
|
|
590 break;
|
|
|
591 /*
|
|
|
592 * Sometimes the PropertyChange event doesn't come.
|
|
|
593 * This can be seen in eg: vim -c 'echo remote_expr("gvim", "3+2")'
|
|
|
594 */
|
|
|
595 serverEventProc(dpy, NULL);
|
|
|
596 }
|
|
|
597 if (localLoop)
|
|
|
598 {
|
|
|
599 /* Just look out for the answer without calling back into Vim */
|
|
|
600 #ifndef HAVE_SELECT
|
|
|
601 struct pollfd fds;
|
|
|
602
|
|
|
603 fds.fd = ConnectionNumber(dpy);
|
|
|
604 fds.events = POLLIN;
|
|
|
605 if (poll(&fds, 1, SEND_MSEC_POLL) < 0)
|
|
|
606 break;
|
|
|
607 #else
|
|
|
608 fd_set fds;
|
|
|
609 struct timeval tv;
|
|
|
610
|
|
|
611 tv.tv_sec = 0;
|
|
|
612 tv.tv_usec = SEND_MSEC_POLL * 1000;
|
|
|
613 FD_ZERO(&fds);
|
|
|
614 FD_SET(ConnectionNumber(dpy), &fds);
|
|
|
615 if (select(ConnectionNumber(dpy) + 1, &fds, NULL, NULL, &tv) < 0)
|
|
|
616 break;
|
|
|
617 #endif
|
|
|
618 while (XEventsQueued(dpy, QueuedAfterReading) > 0)
|
|
|
619 {
|
|
|
620 XNextEvent(dpy, &event);
|
|
|
621 if (event.type == PropertyNotify && e->window == commWindow)
|
|
|
622 serverEventProc(dpy, &event);
|
|
|
623 }
|
|
|
624 }
|
|
|
625 else
|
|
|
626 {
|
|
|
627 if (got_int)
|
|
|
628 break;
|
|
|
629 ui_delay((long)SEND_MSEC_POLL, TRUE);
|
|
|
630 ui_breakcheck();
|
|
|
631 }
|
|
|
632 }
|
|
|
633 }
|
|
|
634
|
|
|
635
|
|
|
636 /*
|
|
|
637 * Fetch a list of all the Vim instance names currently registered for the
|
|
|
638 * display.
|
|
|
639 *
|
|
|
640 * Returns a newline separated list in allocated memory or NULL.
|
|
|
641 */
|
|
|
642 char_u *
|
|
|
643 serverGetVimNames(dpy)
|
|
|
644 Display *dpy;
|
|
|
645 {
|
|
|
646 char_u *regProp;
|
|
|
647 char_u *entry;
|
|
|
648 char_u *p;
|
|
|
649 long_u numItems;
|
|
|
650 int_u w;
|
|
|
651 garray_T ga;
|
|
|
652
|
|
|
653 if (registryProperty == None)
|
|
|
654 {
|
|
|
655 if (SendInit(dpy) < 0)
|
|
|
656 return NULL;
|
|
|
657 }
|
|
|
658 ga_init2(&ga, 1, 100);
|
|
|
659
|
|
|
660 /*
|
|
|
661 * Read the registry property.
|
|
|
662 */
|
|
|
663 if (GetRegProp(dpy, ®Prop, &numItems, TRUE) == FAIL)
|
|
|
664 return NULL;
|
|
|
665
|
|
|
666 /*
|
|
|
667 * Scan all of the names out of the property.
|
|
|
668 */
|
|
|
669 ga_init2(&ga, 1, 100);
|
|
1880
|
670 for (p = regProp; (long_u)(p - regProp) < numItems; p++)
|
|
7
|
671 {
|
|
|
672 entry = p;
|
|
|
673 while (*p != 0 && !isspace(*p))
|
|
|
674 p++;
|
|
|
675 if (*p != 0)
|
|
|
676 {
|
|
|
677 w = None;
|
|
|
678 sscanf((char *)entry, "%x", &w);
|
|
|
679 if (WindowValid(dpy, (Window)w))
|
|
|
680 {
|
|
|
681 ga_concat(&ga, p + 1);
|
|
|
682 ga_concat(&ga, (char_u *)"\n");
|
|
|
683 }
|
|
|
684 while (*p != 0)
|
|
|
685 p++;
|
|
|
686 }
|
|
|
687 }
|
|
|
688 if (regProp != empty_prop)
|
|
|
689 XFree(regProp);
|
|
21
|
690 ga_append(&ga, NUL);
|
|
7
|
691 return ga.ga_data;
|
|
|
692 }
|
|
|
693
|
|
|
694 /* ----------------------------------------------------------
|
|
|
695 * Reply stuff
|
|
|
696 */
|
|
|
697
|
|
|
698 static struct ServerReply *
|
|
|
699 ServerReplyFind(w, op)
|
|
|
700 Window w;
|
|
|
701 enum ServerReplyOp op;
|
|
|
702 {
|
|
|
703 struct ServerReply *p;
|
|
|
704 struct ServerReply e;
|
|
|
705 int i;
|
|
|
706
|
|
|
707 p = (struct ServerReply *) serverReply.ga_data;
|
|
|
708 for (i = 0; i < serverReply.ga_len; i++, p++)
|
|
|
709 if (p->id == w)
|
|
|
710 break;
|
|
|
711 if (i >= serverReply.ga_len)
|
|
|
712 p = NULL;
|
|
|
713
|
|
|
714 if (p == NULL && op == SROP_Add)
|
|
|
715 {
|
|
|
716 if (serverReply.ga_growsize == 0)
|
|
|
717 ga_init2(&serverReply, sizeof(struct ServerReply), 1);
|
|
|
718 if (ga_grow(&serverReply, 1) == OK)
|
|
|
719 {
|
|
|
720 p = ((struct ServerReply *) serverReply.ga_data)
|
|
|
721 + serverReply.ga_len;
|
|
|
722 e.id = w;
|
|
|
723 ga_init2(&e.strings, 1, 100);
|
|
1740
|
724 mch_memmove(p, &e, sizeof(e));
|
|
7
|
725 serverReply.ga_len++;
|
|
|
726 }
|
|
|
727 }
|
|
|
728 else if (p != NULL && op == SROP_Delete)
|
|
|
729 {
|
|
|
730 ga_clear(&p->strings);
|
|
|
731 mch_memmove(p, p + 1, (serverReply.ga_len - i - 1) * sizeof(*p));
|
|
|
732 serverReply.ga_len--;
|
|
|
733 }
|
|
|
734
|
|
|
735 return p;
|
|
|
736 }
|
|
|
737
|
|
|
738 /*
|
|
|
739 * Convert string to windowid.
|
|
|
740 * Issue an error if the id is invalid.
|
|
|
741 */
|
|
|
742 Window
|
|
|
743 serverStrToWin(str)
|
|
|
744 char_u *str;
|
|
|
745 {
|
|
|
746 unsigned id = None;
|
|
|
747
|
|
|
748 sscanf((char *)str, "0x%x", &id);
|
|
|
749 if (id == None)
|
|
|
750 EMSG2(_("E573: Invalid server id used: %s"), str);
|
|
|
751
|
|
|
752 return (Window)id;
|
|
|
753 }
|
|
|
754
|
|
|
755 /*
|
|
39
|
756 * Send a reply string (notification) to client with id "name".
|
|
7
|
757 * Return -1 if the window is invalid.
|
|
|
758 */
|
|
|
759 int
|
|
|
760 serverSendReply(name, str)
|
|
|
761 char_u *name;
|
|
|
762 char_u *str;
|
|
|
763 {
|
|
|
764 char_u *property;
|
|
|
765 int length;
|
|
|
766 int res;
|
|
|
767 Display *dpy = X_DISPLAY;
|
|
|
768 Window win = serverStrToWin(name);
|
|
|
769
|
|
|
770 if (commProperty == None)
|
|
|
771 {
|
|
|
772 if (SendInit(dpy) < 0)
|
|
|
773 return -2;
|
|
|
774 }
|
|
|
775 if (!WindowValid(dpy, win))
|
|
|
776 return -1;
|
|
|
777
|
|
39
|
778 #ifdef FEAT_MBYTE
|
|
500
|
779 length = STRLEN(p_enc) + STRLEN(str) + 14;
|
|
|
780 #else
|
|
|
781 length = STRLEN(str) + 10;
|
|
39
|
782 #endif
|
|
|
783 if ((property = (char_u *)alloc((unsigned)length + 30)) != NULL)
|
|
7
|
784 {
|
|
39
|
785 #ifdef FEAT_MBYTE
|
|
|
786 sprintf((char *)property, "%cn%c-E %s%c-n %s%c-w %x",
|
|
|
787 0, 0, p_enc, 0, str, 0, (unsigned int)commWindow);
|
|
|
788 #else
|
|
|
789 sprintf((char *)property, "%cn%c-n %s%c-w %x",
|
|
|
790 0, 0, str, 0, (unsigned int)commWindow);
|
|
|
791 #endif
|
|
500
|
792 /* Add length of what "%x" resulted in. */
|
|
7
|
793 length += STRLEN(property + length);
|
|
|
794 res = AppendPropCarefully(dpy, win, commProperty, property, length + 1);
|
|
|
795 vim_free(property);
|
|
|
796 return res;
|
|
|
797 }
|
|
|
798 return -1;
|
|
|
799 }
|
|
|
800
|
|
|
801 static int
|
|
|
802 WaitForReply(p)
|
|
|
803 void *p;
|
|
|
804 {
|
|
|
805 Window *w = (Window *) p;
|
|
|
806 return ServerReplyFind(*w, SROP_Find) != NULL;
|
|
|
807 }
|
|
|
808
|
|
|
809 /*
|
|
|
810 * Wait for replies from id (win)
|
|
|
811 * Return 0 and the malloc'ed string when a reply is available.
|
|
|
812 * Return -1 if the window becomes invalid while waiting.
|
|
|
813 */
|
|
|
814 int
|
|
|
815 serverReadReply(dpy, win, str, localLoop)
|
|
|
816 Display *dpy;
|
|
|
817 Window win;
|
|
|
818 char_u **str;
|
|
|
819 int localLoop;
|
|
|
820 {
|
|
|
821 int len;
|
|
|
822 char_u *s;
|
|
|
823 struct ServerReply *p;
|
|
|
824
|
|
|
825 ServerWait(dpy, win, WaitForReply, &win, localLoop, -1);
|
|
|
826
|
|
|
827 if ((p = ServerReplyFind(win, SROP_Find)) != NULL && p->strings.ga_len > 0)
|
|
|
828 {
|
|
|
829 *str = vim_strsave(p->strings.ga_data);
|
|
|
830 len = STRLEN(*str) + 1;
|
|
|
831 if (len < p->strings.ga_len)
|
|
|
832 {
|
|
|
833 s = (char_u *) p->strings.ga_data;
|
|
|
834 mch_memmove(s, s + len, p->strings.ga_len - len);
|
|
|
835 p->strings.ga_len -= len;
|
|
|
836 }
|
|
|
837 else
|
|
|
838 {
|
|
|
839 /* Last string read. Remove from list */
|
|
|
840 ga_clear(&p->strings);
|
|
|
841 ServerReplyFind(win, SROP_Delete);
|
|
|
842 }
|
|
|
843 return 0;
|
|
|
844 }
|
|
|
845 return -1;
|
|
|
846 }
|
|
|
847
|
|
|
848 /*
|
|
|
849 * Check for replies from id (win).
|
|
|
850 * Return TRUE and a non-malloc'ed string if there is. Else return FALSE.
|
|
|
851 */
|
|
|
852 int
|
|
|
853 serverPeekReply(dpy, win, str)
|
|
|
854 Display *dpy;
|
|
|
855 Window win;
|
|
|
856 char_u **str;
|
|
|
857 {
|
|
|
858 struct ServerReply *p;
|
|
|
859
|
|
|
860 if ((p = ServerReplyFind(win, SROP_Find)) != NULL && p->strings.ga_len > 0)
|
|
|
861 {
|
|
|
862 if (str != NULL)
|
|
|
863 *str = p->strings.ga_data;
|
|
|
864 return 1;
|
|
|
865 }
|
|
|
866 if (!WindowValid(dpy, win))
|
|
|
867 return -1;
|
|
|
868 return 0;
|
|
|
869 }
|
|
|
870
|
|
|
871
|
|
|
872 /*
|
|
|
873 * Initialize the communication channels for sending commands and receiving
|
|
|
874 * results.
|
|
|
875 */
|
|
|
876 static int
|
|
|
877 SendInit(dpy)
|
|
|
878 Display *dpy;
|
|
|
879 {
|
|
|
880 XErrorHandler old_handler;
|
|
|
881
|
|
|
882 /*
|
|
|
883 * Create the window used for communication, and set up an
|
|
|
884 * event handler for it.
|
|
|
885 */
|
|
|
886 old_handler = XSetErrorHandler(x_error_check);
|
|
|
887 got_x_error = FALSE;
|
|
|
888
|
|
|
889 if (commProperty == None)
|
|
|
890 commProperty = XInternAtom(dpy, "Comm", False);
|
|
|
891 if (vimProperty == None)
|
|
|
892 vimProperty = XInternAtom(dpy, "Vim", False);
|
|
|
893 if (registryProperty == None)
|
|
|
894 registryProperty = XInternAtom(dpy, "VimRegistry", False);
|
|
|
895
|
|
|
896 if (commWindow == None)
|
|
|
897 {
|
|
|
898 commWindow = XCreateSimpleWindow(dpy, XDefaultRootWindow(dpy),
|
|
|
899 getpid(), 0, 10, 10, 0,
|
|
|
900 WhitePixel(dpy, DefaultScreen(dpy)),
|
|
|
901 WhitePixel(dpy, DefaultScreen(dpy)));
|
|
|
902 XSelectInput(dpy, commWindow, PropertyChangeMask);
|
|
|
903 /* WARNING: Do not step through this while debugging, it will hangup
|
|
|
904 * the X server! */
|
|
|
905 XGrabServer(dpy);
|
|
|
906 DeleteAnyLingerer(dpy, commWindow);
|
|
|
907 XUngrabServer(dpy);
|
|
|
908 }
|
|
|
909
|
|
|
910 /* Make window recognizable as a vim window */
|
|
|
911 XChangeProperty(dpy, commWindow, vimProperty, XA_STRING,
|
|
|
912 8, PropModeReplace, (char_u *)VIM_VERSION_SHORT,
|
|
|
913 (int)STRLEN(VIM_VERSION_SHORT) + 1);
|
|
|
914
|
|
|
915 XSync(dpy, False);
|
|
|
916 (void)XSetErrorHandler(old_handler);
|
|
|
917
|
|
|
918 return got_x_error ? -1 : 0;
|
|
|
919 }
|
|
|
920
|
|
|
921 /*
|
|
|
922 * Given a server name, see if the name exists in the registry for a
|
|
|
923 * particular display.
|
|
|
924 *
|
|
|
925 * If the given name is registered, return the ID of the window associated
|
|
|
926 * with the name. If the name isn't registered, then return 0.
|
|
|
927 *
|
|
|
928 * Side effects:
|
|
|
929 * If the registry property is improperly formed, then it is deleted.
|
|
|
930 * If "delete" is non-zero, then if the named server is found it is
|
|
|
931 * removed from the registry property.
|
|
|
932 */
|
|
|
933 static Window
|
|
|
934 LookupName(dpy, name, delete, loose)
|
|
|
935 Display *dpy; /* Display whose registry to check. */
|
|
|
936 char_u *name; /* Name of a server. */
|
|
|
937 int delete; /* If non-zero, delete info about name. */
|
|
|
938 char_u **loose; /* Do another search matching -999 if not found
|
|
|
939 Return result here if a match is found */
|
|
|
940 {
|
|
|
941 char_u *regProp, *entry;
|
|
|
942 char_u *p;
|
|
|
943 long_u numItems;
|
|
|
944 int_u returnValue;
|
|
|
945
|
|
|
946 /*
|
|
|
947 * Read the registry property.
|
|
|
948 */
|
|
|
949 if (GetRegProp(dpy, ®Prop, &numItems, FALSE) == FAIL)
|
|
|
950 return 0;
|
|
|
951
|
|
|
952 /*
|
|
|
953 * Scan the property for the desired name.
|
|
|
954 */
|
|
|
955 returnValue = (int_u)None;
|
|
|
956 entry = NULL; /* Not needed, but eliminates compiler warning. */
|
|
1880
|
957 for (p = regProp; (long_u)(p - regProp) < numItems; )
|
|
7
|
958 {
|
|
|
959 entry = p;
|
|
|
960 while (*p != 0 && !isspace(*p))
|
|
|
961 p++;
|
|
|
962 if (*p != 0 && STRICMP(name, p + 1) == 0)
|
|
|
963 {
|
|
|
964 sscanf((char *)entry, "%x", &returnValue);
|
|
|
965 break;
|
|
|
966 }
|
|
|
967 while (*p != 0)
|
|
|
968 p++;
|
|
|
969 p++;
|
|
|
970 }
|
|
|
971
|
|
|
972 if (loose != NULL && returnValue == (int_u)None && !IsSerialName(name))
|
|
|
973 {
|
|
1880
|
974 for (p = regProp; (long_u)(p - regProp) < numItems; )
|
|
7
|
975 {
|
|
|
976 entry = p;
|
|
|
977 while (*p != 0 && !isspace(*p))
|
|
|
978 p++;
|
|
|
979 if (*p != 0 && IsSerialName(p + 1)
|
|
|
980 && STRNICMP(name, p + 1, STRLEN(name)) == 0)
|
|
|
981 {
|
|
|
982 sscanf((char *)entry, "%x", &returnValue);
|
|
|
983 *loose = vim_strsave(p + 1);
|
|
|
984 break;
|
|
|
985 }
|
|
|
986 while (*p != 0)
|
|
|
987 p++;
|
|
|
988 p++;
|
|
|
989 }
|
|
|
990 }
|
|
|
991
|
|
|
992 /*
|
|
|
993 * Delete the property, if that is desired (copy down the
|
|
|
994 * remainder of the registry property to overlay the deleted
|
|
|
995 * info, then rewrite the property).
|
|
|
996 */
|
|
|
997 if (delete && returnValue != (int_u)None)
|
|
|
998 {
|
|
|
999 int count;
|
|
|
1000
|
|
|
1001 while (*p != 0)
|
|
|
1002 p++;
|
|
|
1003 p++;
|
|
|
1004 count = numItems - (p - regProp);
|
|
|
1005 if (count > 0)
|
|
1740
|
1006 mch_memmove(entry, p, count);
|
|
7
|
1007 XChangeProperty(dpy, RootWindow(dpy, 0), registryProperty, XA_STRING,
|
|
|
1008 8, PropModeReplace, regProp,
|
|
|
1009 (int)(numItems - (p - entry)));
|
|
|
1010 XSync(dpy, False);
|
|
|
1011 }
|
|
|
1012
|
|
|
1013 if (regProp != empty_prop)
|
|
|
1014 XFree(regProp);
|
|
|
1015 return (Window)returnValue;
|
|
|
1016 }
|
|
|
1017
|
|
|
1018 /*
|
|
1197
|
1019 * Delete any lingering occurrence of window id. We promise that any
|
|
|
1020 * occurrence is not ours since it is not yet put into the registry (by us)
|
|
7
|
1021 *
|
|
|
1022 * This is necessary in the following scenario:
|
|
|
1023 * 1. There is an old windowid for an exit'ed vim in the registry
|
|
|
1024 * 2. We get that id for our commWindow but only want to send, not register.
|
|
|
1025 * 3. The window will mistakenly be regarded valid because of own commWindow
|
|
|
1026 */
|
|
|
1027 static void
|
|
|
1028 DeleteAnyLingerer(dpy, win)
|
|
|
1029 Display *dpy; /* Display whose registry to check. */
|
|
|
1030 Window win; /* Window to remove */
|
|
|
1031 {
|
|
|
1032 char_u *regProp, *entry = NULL;
|
|
|
1033 char_u *p;
|
|
|
1034 long_u numItems;
|
|
28
|
1035 int_u wwin;
|
|
7
|
1036
|
|
|
1037 /*
|
|
|
1038 * Read the registry property.
|
|
|
1039 */
|
|
|
1040 if (GetRegProp(dpy, ®Prop, &numItems, FALSE) == FAIL)
|
|
|
1041 return;
|
|
|
1042
|
|
|
1043 /* Scan the property for the window id. */
|
|
1880
|
1044 for (p = regProp; (long_u)(p - regProp) < numItems; )
|
|
7
|
1045 {
|
|
|
1046 if (*p != 0)
|
|
|
1047 {
|
|
28
|
1048 sscanf((char *)p, "%x", &wwin);
|
|
|
1049 if ((Window)wwin == win)
|
|
7
|
1050 {
|
|
|
1051 int lastHalf;
|
|
|
1052
|
|
|
1053 /* Copy down the remainder to delete entry */
|
|
|
1054 entry = p;
|
|
|
1055 while (*p != 0)
|
|
|
1056 p++;
|
|
|
1057 p++;
|
|
|
1058 lastHalf = numItems - (p - regProp);
|
|
|
1059 if (lastHalf > 0)
|
|
1740
|
1060 mch_memmove(entry, p, lastHalf);
|
|
7
|
1061 numItems = (entry - regProp) + lastHalf;
|
|
|
1062 p = entry;
|
|
|
1063 continue;
|
|
|
1064 }
|
|
|
1065 }
|
|
|
1066 while (*p != 0)
|
|
|
1067 p++;
|
|
|
1068 p++;
|
|
|
1069 }
|
|
|
1070
|
|
|
1071 if (entry != NULL)
|
|
|
1072 {
|
|
|
1073 XChangeProperty(dpy, RootWindow(dpy, 0), registryProperty,
|
|
|
1074 XA_STRING, 8, PropModeReplace, regProp,
|
|
|
1075 (int)(p - regProp));
|
|
|
1076 XSync(dpy, False);
|
|
|
1077 }
|
|
|
1078
|
|
|
1079 if (regProp != empty_prop)
|
|
|
1080 XFree(regProp);
|
|
|
1081 }
|
|
|
1082
|
|
|
1083 /*
|
|
|
1084 * Read the registry property. Delete it when it's formatted wrong.
|
|
|
1085 * Return the property in "regPropp". "empty_prop" is used when it doesn't
|
|
|
1086 * exist yet.
|
|
|
1087 * Return OK when successful.
|
|
|
1088 */
|
|
|
1089 static int
|
|
|
1090 GetRegProp(dpy, regPropp, numItemsp, domsg)
|
|
|
1091 Display *dpy;
|
|
|
1092 char_u **regPropp;
|
|
|
1093 long_u *numItemsp;
|
|
|
1094 int domsg; /* When TRUE give error message. */
|
|
|
1095 {
|
|
|
1096 int result, actualFormat;
|
|
|
1097 long_u bytesAfter;
|
|
|
1098 Atom actualType;
|
|
819
|
1099 XErrorHandler old_handler;
|
|
7
|
1100
|
|
|
1101 *regPropp = NULL;
|
|
819
|
1102 old_handler = XSetErrorHandler(x_error_check);
|
|
|
1103 got_x_error = FALSE;
|
|
|
1104
|
|
7
|
1105 result = XGetWindowProperty(dpy, RootWindow(dpy, 0), registryProperty, 0L,
|
|
|
1106 (long)MAX_PROP_WORDS, False,
|
|
|
1107 XA_STRING, &actualType,
|
|
|
1108 &actualFormat, numItemsp, &bytesAfter,
|
|
|
1109 regPropp);
|
|
|
1110
|
|
819
|
1111 XSync(dpy, FALSE);
|
|
|
1112 (void)XSetErrorHandler(old_handler);
|
|
|
1113 if (got_x_error)
|
|
|
1114 return FAIL;
|
|
|
1115
|
|
7
|
1116 if (actualType == None)
|
|
|
1117 {
|
|
|
1118 /* No prop yet. Logically equal to the empty list */
|
|
|
1119 *numItemsp = 0;
|
|
|
1120 *regPropp = empty_prop;
|
|
|
1121 return OK;
|
|
|
1122 }
|
|
|
1123
|
|
|
1124 /* If the property is improperly formed, then delete it. */
|
|
|
1125 if (result != Success || actualFormat != 8 || actualType != XA_STRING)
|
|
|
1126 {
|
|
|
1127 if (*regPropp != NULL)
|
|
|
1128 XFree(*regPropp);
|
|
|
1129 XDeleteProperty(dpy, RootWindow(dpy, 0), registryProperty);
|
|
|
1130 if (domsg)
|
|
|
1131 EMSG(_("E251: VIM instance registry property is badly formed. Deleted!"));
|
|
|
1132 return FAIL;
|
|
|
1133 }
|
|
|
1134 return OK;
|
|
|
1135 }
|
|
|
1136
|
|
|
1137 /*
|
|
1197
|
1138 * This procedure is invoked by the various X event loops throughout Vims when
|
|
7
|
1139 * a property changes on the communication window. This procedure reads the
|
|
|
1140 * property and handles command requests and responses.
|
|
|
1141 */
|
|
|
1142 void
|
|
|
1143 serverEventProc(dpy, eventPtr)
|
|
|
1144 Display *dpy;
|
|
|
1145 XEvent *eventPtr; /* Information about event. */
|
|
|
1146 {
|
|
|
1147 char_u *propInfo;
|
|
|
1148 char_u *p;
|
|
|
1149 int result, actualFormat, code;
|
|
|
1150 long_u numItems, bytesAfter;
|
|
|
1151 Atom actualType;
|
|
39
|
1152 char_u *tofree;
|
|
7
|
1153
|
|
|
1154 if (eventPtr != NULL)
|
|
|
1155 {
|
|
|
1156 if (eventPtr->xproperty.atom != commProperty
|
|
|
1157 || eventPtr->xproperty.state != PropertyNewValue)
|
|
|
1158 return;
|
|
|
1159 }
|
|
|
1160
|
|
|
1161 /*
|
|
|
1162 * Read the comm property and delete it.
|
|
|
1163 */
|
|
|
1164 propInfo = NULL;
|
|
|
1165 result = XGetWindowProperty(dpy, commWindow, commProperty, 0L,
|
|
|
1166 (long)MAX_PROP_WORDS, True,
|
|
|
1167 XA_STRING, &actualType,
|
|
|
1168 &actualFormat, &numItems, &bytesAfter,
|
|
|
1169 &propInfo);
|
|
|
1170
|
|
|
1171 /* If the property doesn't exist or is improperly formed then ignore it. */
|
|
|
1172 if (result != Success || actualType != XA_STRING || actualFormat != 8)
|
|
|
1173 {
|
|
|
1174 if (propInfo != NULL)
|
|
|
1175 XFree(propInfo);
|
|
|
1176 return;
|
|
|
1177 }
|
|
|
1178
|
|
|
1179 /*
|
|
|
1180 * Several commands and results could arrive in the property at
|
|
|
1181 * one time; each iteration through the outer loop handles a
|
|
|
1182 * single command or result.
|
|
|
1183 */
|
|
1880
|
1184 for (p = propInfo; (long_u)(p - propInfo) < numItems; )
|
|
7
|
1185 {
|
|
|
1186 /*
|
|
|
1187 * Ignore leading NULs; each command or result starts with a
|
|
|
1188 * NUL so that no matter how badly formed a preceding command
|
|
|
1189 * is, we'll be able to tell that a new command/result is
|
|
|
1190 * starting.
|
|
|
1191 */
|
|
|
1192 if (*p == 0)
|
|
|
1193 {
|
|
|
1194 p++;
|
|
|
1195 continue;
|
|
|
1196 }
|
|
|
1197
|
|
|
1198 if ((*p == 'c' || *p == 'k') && (p[1] == 0))
|
|
|
1199 {
|
|
|
1200 Window resWindow;
|
|
|
1201 char_u *name, *script, *serial, *end, *res;
|
|
|
1202 Bool asKeys = *p == 'k';
|
|
|
1203 garray_T reply;
|
|
39
|
1204 char_u *enc;
|
|
7
|
1205
|
|
|
1206 /*
|
|
|
1207 * This is an incoming command from some other application.
|
|
|
1208 * Iterate over all of its options. Stop when we reach
|
|
|
1209 * the end of the property or something that doesn't look
|
|
|
1210 * like an option.
|
|
|
1211 */
|
|
|
1212 p += 2;
|
|
|
1213 name = NULL;
|
|
|
1214 resWindow = None;
|
|
|
1215 serial = (char_u *)"";
|
|
|
1216 script = NULL;
|
|
39
|
1217 enc = NULL;
|
|
1880
|
1218 while ((long_u)(p - propInfo) < numItems && *p == '-')
|
|
7
|
1219 {
|
|
|
1220 switch (p[1])
|
|
|
1221 {
|
|
|
1222 case 'r':
|
|
|
1223 end = skipwhite(p + 2);
|
|
|
1224 resWindow = 0;
|
|
|
1225 while (vim_isxdigit(*end))
|
|
|
1226 {
|
|
|
1227 resWindow = 16 * resWindow + (long_u)hex2nr(*end);
|
|
|
1228 ++end;
|
|
|
1229 }
|
|
|
1230 if (end == p + 2 || *end != ' ')
|
|
|
1231 resWindow = None;
|
|
|
1232 else
|
|
|
1233 {
|
|
|
1234 p = serial = end + 1;
|
|
|
1235 clientWindow = resWindow; /* Remember in global */
|
|
|
1236 }
|
|
|
1237 break;
|
|
|
1238 case 'n':
|
|
|
1239 if (p[2] == ' ')
|
|
|
1240 name = p + 3;
|
|
|
1241 break;
|
|
|
1242 case 's':
|
|
|
1243 if (p[2] == ' ')
|
|
|
1244 script = p + 3;
|
|
|
1245 break;
|
|
39
|
1246 case 'E':
|
|
|
1247 if (p[2] == ' ')
|
|
|
1248 enc = p + 3;
|
|
|
1249 break;
|
|
7
|
1250 }
|
|
|
1251 while (*p != 0)
|
|
|
1252 p++;
|
|
|
1253 p++;
|
|
|
1254 }
|
|
|
1255
|
|
|
1256 if (script == NULL || name == NULL)
|
|
|
1257 continue;
|
|
|
1258
|
|
|
1259 /*
|
|
|
1260 * Initialize the result property, so that we're ready at any
|
|
|
1261 * time if we need to return an error.
|
|
|
1262 */
|
|
|
1263 if (resWindow != None)
|
|
|
1264 {
|
|
|
1265 ga_init2(&reply, 1, 100);
|
|
39
|
1266 #ifdef FEAT_MBYTE
|
|
|
1267 ga_grow(&reply, 50 + STRLEN(p_enc));
|
|
|
1268 sprintf(reply.ga_data, "%cr%c-E %s%c-s %s%c-r ",
|
|
|
1269 0, 0, p_enc, 0, serial, 0);
|
|
502
|
1270 reply.ga_len = 14 + STRLEN(p_enc) + STRLEN(serial);
|
|
39
|
1271 #else
|
|
7
|
1272 ga_grow(&reply, 50);
|
|
|
1273 sprintf(reply.ga_data, "%cr%c-s %s%c-r ", 0, 0, serial, 0);
|
|
500
|
1274 reply.ga_len = 10 + STRLEN(serial);
|
|
39
|
1275 #endif
|
|
7
|
1276 }
|
|
|
1277 res = NULL;
|
|
|
1278 if (serverName != NULL && STRICMP(name, serverName) == 0)
|
|
|
1279 {
|
|
39
|
1280 script = serverConvert(enc, script, &tofree);
|
|
7
|
1281 if (asKeys)
|
|
|
1282 server_to_input_buf(script);
|
|
|
1283 else
|
|
|
1284 res = eval_client_expr_to_string(script);
|
|
39
|
1285 vim_free(tofree);
|
|
7
|
1286 }
|
|
|
1287 if (resWindow != None)
|
|
|
1288 {
|
|
|
1289 if (res != NULL)
|
|
|
1290 ga_concat(&reply, res);
|
|
|
1291 else if (asKeys == 0)
|
|
|
1292 {
|
|
|
1293 ga_concat(&reply, (char_u *)_(e_invexprmsg));
|
|
|
1294 ga_append(&reply, 0);
|
|
|
1295 ga_concat(&reply, (char_u *)"-c 1");
|
|
|
1296 }
|
|
21
|
1297 ga_append(&reply, NUL);
|
|
7
|
1298 (void)AppendPropCarefully(dpy, resWindow, commProperty,
|
|
|
1299 reply.ga_data, reply.ga_len);
|
|
39
|
1300 ga_clear(&reply);
|
|
7
|
1301 }
|
|
|
1302 vim_free(res);
|
|
|
1303 }
|
|
|
1304 else if (*p == 'r' && p[1] == 0)
|
|
|
1305 {
|
|
39
|
1306 int serial, gotSerial;
|
|
|
1307 char_u *res;
|
|
|
1308 PendingCommand *pcPtr;
|
|
|
1309 char_u *enc;
|
|
7
|
1310
|
|
|
1311 /*
|
|
|
1312 * This is a reply to some command that we sent out. Iterate
|
|
|
1313 * over all of its options. Stop when we reach the end of the
|
|
|
1314 * property or something that doesn't look like an option.
|
|
|
1315 */
|
|
|
1316 p += 2;
|
|
|
1317 gotSerial = 0;
|
|
|
1318 res = (char_u *)"";
|
|
|
1319 code = 0;
|
|
39
|
1320 enc = NULL;
|
|
1880
|
1321 while ((long_u)(p - propInfo) < numItems && *p == '-')
|
|
7
|
1322 {
|
|
|
1323 switch (p[1])
|
|
|
1324 {
|
|
|
1325 case 'r':
|
|
|
1326 if (p[2] == ' ')
|
|
|
1327 res = p + 3;
|
|
|
1328 break;
|
|
39
|
1329 case 'E':
|
|
|
1330 if (p[2] == ' ')
|
|
|
1331 enc = p + 3;
|
|
|
1332 break;
|
|
7
|
1333 case 's':
|
|
|
1334 if (sscanf((char *)p + 2, " %d", &serial) == 1)
|
|
|
1335 gotSerial = 1;
|
|
|
1336 break;
|
|
|
1337 case 'c':
|
|
|
1338 if (sscanf((char *)p + 2, " %d", &code) != 1)
|
|
|
1339 code = 0;
|
|
|
1340 break;
|
|
|
1341 }
|
|
|
1342 while (*p != 0)
|
|
|
1343 p++;
|
|
|
1344 p++;
|
|
|
1345 }
|
|
|
1346
|
|
|
1347 if (!gotSerial)
|
|
|
1348 continue;
|
|
|
1349
|
|
|
1350 /*
|
|
|
1351 * Give the result information to anyone who's
|
|
|
1352 * waiting for it.
|
|
|
1353 */
|
|
|
1354 for (pcPtr = pendingCommands; pcPtr != NULL; pcPtr = pcPtr->nextPtr)
|
|
|
1355 {
|
|
|
1356 if (serial != pcPtr->serial || pcPtr->result != NULL)
|
|
|
1357 continue;
|
|
|
1358
|
|
|
1359 pcPtr->code = code;
|
|
|
1360 if (res != NULL)
|
|
39
|
1361 {
|
|
|
1362 res = serverConvert(enc, res, &tofree);
|
|
|
1363 if (tofree == NULL)
|
|
|
1364 res = vim_strsave(res);
|
|
|
1365 pcPtr->result = res;
|
|
|
1366 }
|
|
7
|
1367 else
|
|
|
1368 pcPtr->result = vim_strsave((char_u *)"");
|
|
|
1369 break;
|
|
|
1370 }
|
|
|
1371 }
|
|
|
1372 else if (*p == 'n' && p[1] == 0)
|
|
|
1373 {
|
|
|
1374 Window win = 0;
|
|
|
1375 unsigned int u;
|
|
|
1376 int gotWindow;
|
|
|
1377 char_u *str;
|
|
|
1378 struct ServerReply *r;
|
|
39
|
1379 char_u *enc;
|
|
7
|
1380
|
|
|
1381 /*
|
|
|
1382 * This is a (n)otification. Sent with serverreply_send in VimL.
|
|
|
1383 * Execute any autocommand and save it for later retrieval
|
|
|
1384 */
|
|
|
1385 p += 2;
|
|
|
1386 gotWindow = 0;
|
|
|
1387 str = (char_u *)"";
|
|
39
|
1388 enc = NULL;
|
|
1880
|
1389 while ((long_u)(p - propInfo) < numItems && *p == '-')
|
|
7
|
1390 {
|
|
|
1391 switch (p[1])
|
|
|
1392 {
|
|
|
1393 case 'n':
|
|
|
1394 if (p[2] == ' ')
|
|
|
1395 str = p + 3;
|
|
|
1396 break;
|
|
39
|
1397 case 'E':
|
|
|
1398 if (p[2] == ' ')
|
|
|
1399 enc = p + 3;
|
|
|
1400 break;
|
|
7
|
1401 case 'w':
|
|
|
1402 if (sscanf((char *)p + 2, " %x", &u) == 1)
|
|
|
1403 {
|
|
|
1404 win = u;
|
|
|
1405 gotWindow = 1;
|
|
|
1406 }
|
|
|
1407 break;
|
|
|
1408 }
|
|
|
1409 while (*p != 0)
|
|
|
1410 p++;
|
|
|
1411 p++;
|
|
|
1412 }
|
|
|
1413
|
|
|
1414 if (!gotWindow)
|
|
|
1415 continue;
|
|
39
|
1416 str = serverConvert(enc, str, &tofree);
|
|
7
|
1417 if ((r = ServerReplyFind(win, SROP_Add)) != NULL)
|
|
|
1418 {
|
|
|
1419 ga_concat(&(r->strings), str);
|
|
21
|
1420 ga_append(&(r->strings), NUL);
|
|
7
|
1421 }
|
|
|
1422 #ifdef FEAT_AUTOCMD
|
|
1698
|
1423 {
|
|
|
1424 char_u winstr[30];
|
|
|
1425
|
|
|
1426 sprintf((char *)winstr, "0x%x", (unsigned int)win);
|
|
|
1427 apply_autocmds(EVENT_REMOTEREPLY, winstr, str, TRUE, curbuf);
|
|
|
1428 }
|
|
7
|
1429 #endif
|
|
39
|
1430 vim_free(tofree);
|
|
7
|
1431 }
|
|
|
1432 else
|
|
|
1433 {
|
|
|
1434 /*
|
|
|
1435 * Didn't recognize this thing. Just skip through the next
|
|
|
1436 * null character and try again.
|
|
|
1437 * Even if we get an 'r'(eply) we will throw it away as we
|
|
|
1438 * never specify (and thus expect) one
|
|
|
1439 */
|
|
|
1440 while (*p != 0)
|
|
|
1441 p++;
|
|
|
1442 p++;
|
|
|
1443 }
|
|
|
1444 }
|
|
|
1445 XFree(propInfo);
|
|
|
1446 }
|
|
|
1447
|
|
|
1448 /*
|
|
|
1449 * Append a given property to a given window, but set up an X error handler so
|
|
|
1450 * that if the append fails this procedure can return an error code rather
|
|
|
1451 * than having Xlib panic.
|
|
|
1452 * Return: 0 for OK, -1 for error
|
|
|
1453 */
|
|
|
1454 static int
|
|
|
1455 AppendPropCarefully(dpy, window, property, value, length)
|
|
|
1456 Display *dpy; /* Display on which to operate. */
|
|
|
1457 Window window; /* Window whose property is to be modified. */
|
|
|
1458 Atom property; /* Name of property. */
|
|
|
1459 char_u *value; /* Characters to append to property. */
|
|
|
1460 int length; /* How much to append */
|
|
|
1461 {
|
|
|
1462 XErrorHandler old_handler;
|
|
|
1463
|
|
|
1464 old_handler = XSetErrorHandler(x_error_check);
|
|
|
1465 got_x_error = FALSE;
|
|
|
1466 XChangeProperty(dpy, window, property, XA_STRING, 8,
|
|
|
1467 PropModeAppend, value, length);
|
|
|
1468 XSync(dpy, False);
|
|
|
1469 (void) XSetErrorHandler(old_handler);
|
|
|
1470 return got_x_error ? -1 : 0;
|
|
|
1471 }
|
|
|
1472
|
|
|
1473
|
|
|
1474 /*
|
|
|
1475 * Another X Error handler, just used to check for errors.
|
|
|
1476 */
|
|
|
1477 static int
|
|
|
1478 x_error_check(dpy, error_event)
|
|
1880
|
1479 Display *dpy UNUSED;
|
|
|
1480 XErrorEvent *error_event UNUSED;
|
|
7
|
1481 {
|
|
|
1482 got_x_error = TRUE;
|
|
|
1483 return 0;
|
|
|
1484 }
|
|
|
1485
|
|
|
1486 /*
|
|
|
1487 * Check if "str" looks like it had a serial number appended.
|
|
|
1488 * Actually just checks if the name ends in a digit.
|
|
|
1489 */
|
|
|
1490 static int
|
|
|
1491 IsSerialName(str)
|
|
|
1492 char_u *str;
|
|
|
1493 {
|
|
|
1494 int len = STRLEN(str);
|
|
|
1495
|
|
|
1496 return (len > 1 && vim_isdigit(str[len - 1]));
|
|
|
1497 }
|
|
|
1498 #endif /* FEAT_CLIENTSERVER */
|
