Mercurial > vim
annotate src/ui.c @ 24194:9f64c420f280 v8.2.2638
patch 8.2.2638: cannot write a message to the terminal from the GUI
Commit: https://github.com/vim/vim/commit/4c86830fc578bcb47a51cf0983da5388cdbfe6cc
Author: Bram Moolenaar <Bram@vim.org>
Date: Mon Mar 22 16:19:45 2021 +0100
patch 8.2.2638: cannot write a message to the terminal from the GUI
Problem: Cannot write a message to the terminal from the GUI.
Solution: Add :echoconsole and use it in the test runner. (issue https://github.com/vim/vim/issues/7975)
author | Bram Moolenaar <Bram@vim.org> |
---|---|
date | Mon, 22 Mar 2021 16:30:04 +0100 |
parents | 8dbebce07695 |
children | 1040b294bfd3 |
rev | line source |
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1 /* vi:set ts=8 sts=4 sw=4 noet: |
7 | 2 * |
3 * VIM - Vi IMproved by Bram Moolenaar | |
4 * | |
5 * Do ":help uganda" in Vim to read copying and usage conditions. | |
6 * Do ":help credits" in Vim to see a list of people who contributed. | |
7 * See README.txt for an overview of the Vim source code. | |
8 */ | |
9 | |
10 /* | |
11 * ui.c: functions that handle the user interface. | |
12 * 1. Keyboard input stuff, and a bit of windowing stuff. These are called | |
13 * before the machine specific stuff (mch_*) so that we can call the GUI | |
14 * stuff instead if the GUI is running. | |
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15 * 2. Input buffer stuff. |
7 | 16 */ |
17 | |
18 #include "vim.h" | |
19 | |
20 void | |
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21 ui_write(char_u *s, int len, int console UNUSED) |
7 | 22 { |
23 #ifdef FEAT_GUI | |
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24 if (gui.in_use && !gui.dying && !gui.starting |
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25 # ifndef NO_CONSOLE |
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26 && !console |
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27 # endif |
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28 ) |
7 | 29 { |
30 gui_write(s, len); | |
31 if (p_wd) | |
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32 gui_wait_for_chars(p_wd, typebuf.tb_change_cnt); |
7 | 33 return; |
34 } | |
35 #endif | |
36 #ifndef NO_CONSOLE | |
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37 // Don't output anything in silent mode ("ex -s") unless 'verbose' set |
7 | 38 if (!(silent_mode && p_verbose == 0)) |
39 { | |
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40 # if !defined(MSWIN) |
7 | 41 char_u *tofree = NULL; |
42 | |
43 if (output_conv.vc_type != CONV_NONE) | |
44 { | |
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45 // Convert characters from 'encoding' to 'termencoding'. |
7 | 46 tofree = string_convert(&output_conv, s, &len); |
47 if (tofree != NULL) | |
48 s = tofree; | |
49 } | |
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50 # endif |
7 | 51 |
52 mch_write(s, len); | |
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53 if (console && s[len - 1] == '\n') |
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54 fsync(1); |
7 | 55 |
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56 # if !defined(MSWIN) |
7 | 57 if (output_conv.vc_type != CONV_NONE) |
58 vim_free(tofree); | |
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59 # endif |
7 | 60 } |
61 #endif | |
62 } | |
63 | |
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64 #if defined(UNIX) || defined(VMS) || defined(PROTO) || defined(MSWIN) |
7 | 65 /* |
66 * When executing an external program, there may be some typed characters that | |
67 * are not consumed by it. Give them back to ui_inchar() and they are stored | |
68 * here for the next call. | |
69 */ | |
70 static char_u *ta_str = NULL; | |
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71 static int ta_off; // offset for next char to use when ta_str != NULL |
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72 static int ta_len; // length of ta_str when it's not NULL |
7 | 73 |
74 void | |
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75 ui_inchar_undo(char_u *s, int len) |
7 | 76 { |
77 char_u *new; | |
78 int newlen; | |
79 | |
80 newlen = len; | |
81 if (ta_str != NULL) | |
82 newlen += ta_len - ta_off; | |
83 new = alloc(newlen); | |
84 if (new != NULL) | |
85 { | |
86 if (ta_str != NULL) | |
87 { | |
88 mch_memmove(new, ta_str + ta_off, (size_t)(ta_len - ta_off)); | |
89 mch_memmove(new + ta_len - ta_off, s, (size_t)len); | |
90 vim_free(ta_str); | |
91 } | |
92 else | |
93 mch_memmove(new, s, (size_t)len); | |
94 ta_str = new; | |
95 ta_len = newlen; | |
96 ta_off = 0; | |
97 } | |
98 } | |
99 #endif | |
100 | |
101 /* | |
3877 | 102 * ui_inchar(): low level input function. |
7 | 103 * Get characters from the keyboard. |
104 * Return the number of characters that are available. | |
105 * If "wtime" == 0 do not wait for characters. | |
106 * If "wtime" == -1 wait forever for characters. | |
107 * If "wtime" > 0 wait "wtime" milliseconds for a character. | |
108 * | |
109 * "tb_change_cnt" is the value of typebuf.tb_change_cnt if "buf" points into | |
110 * it. When typebuf.tb_change_cnt changes (e.g., when a message is received | |
111 * from a remote client) "buf" can no longer be used. "tb_change_cnt" is NULL | |
112 * otherwise. | |
113 */ | |
114 int | |
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115 ui_inchar( |
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116 char_u *buf, |
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117 int maxlen, |
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118 long wtime, // don't use "time", MIPS cannot handle it |
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119 int tb_change_cnt) |
7 | 120 { |
121 int retval = 0; | |
122 | |
123 #if defined(FEAT_GUI) && (defined(UNIX) || defined(VMS)) | |
124 /* | |
125 * Use the typeahead if there is any. | |
126 */ | |
127 if (ta_str != NULL) | |
128 { | |
129 if (maxlen >= ta_len - ta_off) | |
130 { | |
131 mch_memmove(buf, ta_str + ta_off, (size_t)ta_len); | |
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132 VIM_CLEAR(ta_str); |
7 | 133 return ta_len; |
134 } | |
135 mch_memmove(buf, ta_str + ta_off, (size_t)maxlen); | |
136 ta_off += maxlen; | |
137 return maxlen; | |
138 } | |
139 #endif | |
140 | |
170 | 141 #ifdef FEAT_PROFILE |
791 | 142 if (do_profiling == PROF_YES && wtime != 0) |
170 | 143 prof_inchar_enter(); |
144 #endif | |
145 | |
7 | 146 #ifdef NO_CONSOLE_INPUT |
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147 // Don't wait for character input when the window hasn't been opened yet. |
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148 // Do try reading, this works when redirecting stdin from a file. |
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149 // Must return something, otherwise we'll loop forever. If we run into |
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150 // this very often we probably got stuck, exit Vim. |
7 | 151 if (no_console_input()) |
152 { | |
153 static int count = 0; | |
154 | |
155 # ifndef NO_CONSOLE | |
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156 retval = mch_inchar(buf, maxlen, wtime, tb_change_cnt); |
228 | 157 if (retval > 0 || typebuf_changed(tb_change_cnt) || wtime >= 0) |
170 | 158 goto theend; |
7 | 159 # endif |
160 if (wtime == -1 && ++count == 1000) | |
161 read_error_exit(); | |
162 buf[0] = CAR; | |
170 | 163 retval = 1; |
164 goto theend; | |
7 | 165 } |
166 #endif | |
167 | |
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168 // If we are going to wait for some time or block... |
1086 | 169 if (wtime == -1 || wtime > 100L) |
170 { | |
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171 // ... allow signals to kill us. |
1086 | 172 (void)vim_handle_signal(SIGNAL_UNBLOCK); |
173 | |
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174 // ... there is no need for CTRL-C to interrupt something, don't let |
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175 // it set got_int when it was mapped. |
6491 | 176 if ((mapped_ctrl_c | curbuf->b_mapped_ctrl_c) & get_real_state()) |
1086 | 177 ctrl_c_interrupts = FALSE; |
178 } | |
7 | 179 |
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180 /* |
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181 * Here we call gui_inchar() or mch_inchar(), the GUI or machine-dependent |
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182 * input function. The functionality they implement is like this: |
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183 * |
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184 * while (not timed out) |
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185 * { |
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186 * handle-resize; |
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187 * parse-queued-messages; |
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188 * if (waited for 'updatetime') |
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189 * trigger-cursorhold; |
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190 * ui_wait_for_chars_or_timer() |
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191 * if (character available) |
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192 * break; |
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193 * } |
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194 * |
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195 * ui_wait_for_chars_or_timer() does: |
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196 * |
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197 * while (not timed out) |
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198 * { |
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199 * if (any-timer-triggered) |
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200 * invoke-timer-callback; |
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201 * wait-for-character(); |
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202 * if (character available) |
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203 * break; |
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204 * } |
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205 * |
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206 * wait-for-character() does: |
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207 * while (not timed out) |
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208 * { |
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209 * Wait for event; |
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210 * if (something on channel) |
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211 * read/write channel; |
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212 * else if (resized) |
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213 * handle_resize(); |
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214 * else if (system event) |
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215 * deal-with-system-event; |
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216 * else if (character available) |
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217 * break; |
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218 * } |
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219 * |
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220 */ |
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221 |
7 | 222 #ifdef FEAT_GUI |
223 if (gui.in_use) | |
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224 retval = gui_inchar(buf, maxlen, wtime, tb_change_cnt); |
7 | 225 #endif |
226 #ifndef NO_CONSOLE | |
227 # ifdef FEAT_GUI | |
228 else | |
229 # endif | |
230 retval = mch_inchar(buf, maxlen, wtime, tb_change_cnt); | |
231 #endif | |
232 | |
1086 | 233 if (wtime == -1 || wtime > 100L) |
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234 // block SIGHUP et al. |
1086 | 235 (void)vim_handle_signal(SIGNAL_BLOCK); |
236 | |
7 | 237 ctrl_c_interrupts = TRUE; |
238 | |
170 | 239 #ifdef NO_CONSOLE_INPUT |
240 theend: | |
241 #endif | |
242 #ifdef FEAT_PROFILE | |
791 | 243 if (do_profiling == PROF_YES && wtime != 0) |
170 | 244 prof_inchar_exit(); |
245 #endif | |
7 | 246 return retval; |
247 } | |
248 | |
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249 #if defined(UNIX) || defined(VMS) || defined(FEAT_GUI) || defined(PROTO) |
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250 /* |
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251 * Common code for mch_inchar() and gui_inchar(): Wait for a while or |
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252 * indefinitely until characters are available, dealing with timers and |
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253 * messages on channels. |
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254 * |
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255 * "buf" may be NULL if the available characters are not to be returned, only |
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256 * check if they are available. |
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257 * |
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258 * Return the number of characters that are available. |
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259 * If "wtime" == 0 do not wait for characters. |
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260 * If "wtime" == n wait a short time for characters. |
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261 * If "wtime" == -1 wait forever for characters. |
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262 */ |
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263 int |
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264 inchar_loop( |
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265 char_u *buf, |
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266 int maxlen, |
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267 long wtime, // don't use "time", MIPS cannot handle it |
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268 int tb_change_cnt, |
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269 int (*wait_func)(long wtime, int *interrupted, int ignore_input), |
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270 int (*resize_func)(int check_only)) |
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271 { |
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272 int len; |
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273 int interrupted = FALSE; |
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274 int did_call_wait_func = FALSE; |
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275 int did_start_blocking = FALSE; |
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276 long wait_time; |
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277 long elapsed_time = 0; |
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278 #ifdef ELAPSED_FUNC |
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279 elapsed_T start_tv; |
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280 |
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281 ELAPSED_INIT(start_tv); |
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282 #endif |
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283 |
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284 // repeat until we got a character or waited long enough |
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285 for (;;) |
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286 { |
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287 // Check if window changed size while we were busy, perhaps the ":set |
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288 // columns=99" command was used. |
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289 if (resize_func != NULL) |
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290 resize_func(FALSE); |
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291 |
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292 #ifdef MESSAGE_QUEUE |
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293 // Only process messages when waiting. |
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294 if (wtime != 0) |
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295 { |
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296 parse_queued_messages(); |
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297 // If input was put directly in typeahead buffer bail out here. |
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298 if (typebuf_changed(tb_change_cnt)) |
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299 return 0; |
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300 } |
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301 #endif |
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302 if (wtime < 0 && did_start_blocking) |
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303 // blocking and already waited for p_ut |
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304 wait_time = -1; |
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305 else |
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306 { |
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307 if (wtime >= 0) |
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308 wait_time = wtime; |
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309 else |
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310 // going to block after p_ut |
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311 wait_time = p_ut; |
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312 #ifdef ELAPSED_FUNC |
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313 elapsed_time = ELAPSED_FUNC(start_tv); |
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314 #endif |
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315 wait_time -= elapsed_time; |
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316 |
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317 // If the waiting time is now zero or less, we timed out. However, |
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318 // loop at least once to check for characters and events. Matters |
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319 // when "wtime" is zero. |
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320 if (wait_time <= 0 && did_call_wait_func) |
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321 { |
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322 if (wtime >= 0) |
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323 // no character available within "wtime" |
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324 return 0; |
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325 |
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326 // No character available within 'updatetime'. |
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327 did_start_blocking = TRUE; |
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328 if (trigger_cursorhold() && maxlen >= 3 |
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329 && !typebuf_changed(tb_change_cnt)) |
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330 { |
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331 // Put K_CURSORHOLD in the input buffer or return it. |
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332 if (buf == NULL) |
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333 { |
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334 char_u ibuf[3]; |
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335 |
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336 ibuf[0] = CSI; |
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337 ibuf[1] = KS_EXTRA; |
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338 ibuf[2] = (int)KE_CURSORHOLD; |
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339 add_to_input_buf(ibuf, 3); |
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340 } |
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341 else |
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342 { |
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343 buf[0] = K_SPECIAL; |
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344 buf[1] = KS_EXTRA; |
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345 buf[2] = (int)KE_CURSORHOLD; |
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346 } |
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347 return 3; |
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348 } |
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349 |
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350 // There is no character available within 'updatetime' seconds: |
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351 // flush all the swap files to disk. Also done when |
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352 // interrupted by SIGWINCH. |
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353 before_blocking(); |
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354 continue; |
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355 } |
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356 } |
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357 |
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358 #ifdef FEAT_JOB_CHANNEL |
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359 if (wait_time < 0 || wait_time > 100L) |
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360 { |
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361 // Checking if a job ended requires polling. Do this at least |
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362 // every 100 msec. |
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363 if (has_pending_job()) |
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364 wait_time = 100L; |
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365 |
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366 // If there is readahead then parse_queued_messages() timed out and |
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367 // we should call it again soon. |
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368 if (channel_any_readahead()) |
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369 wait_time = 10L; |
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370 } |
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371 #endif |
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372 #ifdef FEAT_BEVAL_GUI |
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373 if (p_beval && wait_time > 100L) |
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374 // The 'balloonexpr' may indirectly invoke a callback while waiting |
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375 // for a character, need to check often. |
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376 wait_time = 100L; |
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377 #endif |
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378 |
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379 // Wait for a character to be typed or another event, such as the winch |
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380 // signal or an event on the monitored file descriptors. |
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381 did_call_wait_func = TRUE; |
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382 if (wait_func(wait_time, &interrupted, FALSE)) |
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383 { |
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384 // If input was put directly in typeahead buffer bail out here. |
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385 if (typebuf_changed(tb_change_cnt)) |
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386 return 0; |
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387 |
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388 // We might have something to return now. |
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389 if (buf == NULL) |
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390 // "buf" is NULL, we were just waiting, not actually getting |
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391 // input. |
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392 return input_available(); |
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393 |
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394 len = read_from_input_buf(buf, (long)maxlen); |
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395 if (len > 0) |
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396 return len; |
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397 continue; |
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398 } |
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399 // Timed out or interrupted with no character available. |
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400 |
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401 #ifndef ELAPSED_FUNC |
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402 // estimate the elapsed time |
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403 elapsed_time += wait_time; |
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404 #endif |
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405 |
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406 if ((resize_func != NULL && resize_func(TRUE)) |
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407 #if defined(FEAT_CLIENTSERVER) && defined(UNIX) |
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408 || server_waiting() |
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409 #endif |
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410 #ifdef MESSAGE_QUEUE |
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411 || interrupted |
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412 #endif |
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413 || wait_time > 0 |
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414 || (wtime < 0 && !did_start_blocking)) |
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415 // no character available, but something to be done, keep going |
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416 continue; |
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417 |
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418 // no character available or interrupted, return zero |
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419 break; |
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420 } |
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421 return 0; |
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422 } |
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423 #endif |
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424 |
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425 #if defined(FEAT_TIMERS) || defined(PROTO) |
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426 /* |
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427 * Wait for a timer to fire or "wait_func" to return non-zero. |
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428 * Returns OK when something was read. |
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429 * Returns FAIL when it timed out or was interrupted. |
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430 */ |
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431 int |
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432 ui_wait_for_chars_or_timer( |
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433 long wtime, |
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434 int (*wait_func)(long wtime, int *interrupted, int ignore_input), |
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435 int *interrupted, |
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436 int ignore_input) |
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437 { |
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438 int due_time; |
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439 long remaining = wtime; |
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440 int tb_change_cnt = typebuf.tb_change_cnt; |
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441 # ifdef FEAT_JOB_CHANNEL |
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442 int brief_wait = FALSE; |
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443 # endif |
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444 |
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445 // When waiting very briefly don't trigger timers. |
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446 if (wtime >= 0 && wtime < 10L) |
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447 return wait_func(wtime, NULL, ignore_input); |
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448 |
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449 while (wtime < 0 || remaining > 0) |
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450 { |
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451 // Trigger timers and then get the time in wtime until the next one is |
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452 // due. Wait up to that time. |
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453 due_time = check_due_timer(); |
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454 if (typebuf.tb_change_cnt != tb_change_cnt) |
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455 { |
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456 // timer may have used feedkeys() |
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457 return FAIL; |
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458 } |
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459 if (due_time <= 0 || (wtime > 0 && due_time > remaining)) |
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460 due_time = remaining; |
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461 # if defined(FEAT_JOB_CHANNEL) || defined(FEAT_SOUND_CANBERRA) |
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462 if ((due_time < 0 || due_time > 10L) && ( |
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463 # if defined(FEAT_JOB_CHANNEL) |
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464 ( |
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465 # if defined(FEAT_GUI) |
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466 !gui.in_use && |
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467 # endif |
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468 (has_pending_job() || channel_any_readahead())) |
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469 # ifdef FEAT_SOUND_CANBERRA |
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470 || |
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471 # endif |
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472 # endif |
17708
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473 # ifdef FEAT_SOUND_CANBERRA |
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474 has_any_sound_callback() |
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475 # endif |
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476 )) |
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477 { |
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478 // There is a pending job or channel, should return soon in order |
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479 // to handle them ASAP. Do check for input briefly. |
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480 due_time = 10L; |
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481 # ifdef FEAT_JOB_CHANNEL |
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482 brief_wait = TRUE; |
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483 # endif |
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484 } |
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485 # endif |
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486 if (wait_func(due_time, interrupted, ignore_input)) |
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487 return OK; |
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488 if ((interrupted != NULL && *interrupted) |
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489 # ifdef FEAT_JOB_CHANNEL |
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490 || brief_wait |
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491 # endif |
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492 ) |
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493 // Nothing available, but need to return so that side effects get |
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494 // handled, such as handling a message on a channel. |
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495 return FAIL; |
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496 if (wtime > 0) |
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497 remaining -= due_time; |
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498 } |
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499 return FAIL; |
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500 } |
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501 #endif |
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502 |
7 | 503 /* |
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504 * Return non-zero if a character is available. |
7 | 505 */ |
506 int | |
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507 ui_char_avail(void) |
7 | 508 { |
509 #ifdef FEAT_GUI | |
510 if (gui.in_use) | |
511 { | |
512 gui_mch_update(); | |
513 return input_available(); | |
514 } | |
515 #endif | |
516 #ifndef NO_CONSOLE | |
517 # ifdef NO_CONSOLE_INPUT | |
518 if (no_console_input()) | |
519 return 0; | |
520 # endif | |
521 return mch_char_avail(); | |
522 #else | |
523 return 0; | |
524 #endif | |
525 } | |
526 | |
527 /* | |
528 * Delay for the given number of milliseconds. If ignoreinput is FALSE then we | |
529 * cancel the delay if a key is hit. | |
530 */ | |
531 void | |
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532 ui_delay(long msec_arg, int ignoreinput) |
7 | 533 { |
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534 long msec = msec_arg; |
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535 |
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536 #ifdef FEAT_EVAL |
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537 if (ui_delay_for_testing > 0) |
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538 msec = ui_delay_for_testing; |
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539 #endif |
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540 #ifdef FEAT_JOB_CHANNEL |
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541 ch_log(NULL, "ui_delay(%ld)", msec); |
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542 #endif |
7 | 543 #ifdef FEAT_GUI |
544 if (gui.in_use && !ignoreinput) | |
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545 gui_wait_for_chars(msec, typebuf.tb_change_cnt); |
7 | 546 else |
547 #endif | |
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548 mch_delay(msec, ignoreinput ? MCH_DELAY_IGNOREINPUT : 0); |
7 | 549 } |
550 | |
551 /* | |
552 * If the machine has job control, use it to suspend the program, | |
553 * otherwise fake it by starting a new shell. | |
554 * When running the GUI iconify the window. | |
555 */ | |
556 void | |
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557 ui_suspend(void) |
7 | 558 { |
559 #ifdef FEAT_GUI | |
560 if (gui.in_use) | |
561 { | |
562 gui_mch_iconify(); | |
563 return; | |
564 } | |
565 #endif | |
566 mch_suspend(); | |
567 } | |
568 | |
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569 #if !defined(UNIX) || !defined(SIGTSTP) || defined(PROTO) |
7 | 570 /* |
571 * When the OS can't really suspend, call this function to start a shell. | |
572 * This is never called in the GUI. | |
573 */ | |
574 void | |
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575 suspend_shell(void) |
7 | 576 { |
577 if (*p_sh == NUL) | |
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578 emsg(_(e_shellempty)); |
7 | 579 else |
580 { | |
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581 msg_puts(_("new shell started\n")); |
7 | 582 do_shell(NULL, 0); |
583 } | |
584 } | |
585 #endif | |
586 | |
587 /* | |
588 * Try to get the current Vim shell size. Put the result in Rows and Columns. | |
589 * Use the new sizes as defaults for 'columns' and 'lines'. | |
590 * Return OK when size could be determined, FAIL otherwise. | |
591 */ | |
592 int | |
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593 ui_get_shellsize(void) |
7 | 594 { |
595 int retval; | |
596 | |
597 #ifdef FEAT_GUI | |
598 if (gui.in_use) | |
599 retval = gui_get_shellsize(); | |
600 else | |
601 #endif | |
602 retval = mch_get_shellsize(); | |
603 | |
604 check_shellsize(); | |
605 | |
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|
606 // adjust the default for 'lines' and 'columns' |
7 | 607 if (retval == OK) |
608 { | |
609 set_number_default("lines", Rows); | |
610 set_number_default("columns", Columns); | |
611 } | |
612 return retval; | |
613 } | |
614 | |
615 /* | |
616 * Set the size of the Vim shell according to Rows and Columns, if possible. | |
617 * The gui_set_shellsize() or mch_set_shellsize() function will try to set the | |
618 * new size. If this is not possible, it will adjust Rows and Columns. | |
619 */ | |
620 void | |
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621 ui_set_shellsize( |
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|
622 int mustset UNUSED) // set by the user |
7 | 623 { |
624 #ifdef FEAT_GUI | |
625 if (gui.in_use) | |
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626 gui_set_shellsize(mustset, TRUE, RESIZE_BOTH); |
7 | 627 else |
628 #endif | |
629 mch_set_shellsize(); | |
630 } | |
631 | |
632 /* | |
633 * Called when Rows and/or Columns changed. Adjust scroll region and mouse | |
634 * region. | |
635 */ | |
636 void | |
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changeset
|
637 ui_new_shellsize(void) |
7 | 638 { |
639 if (full_screen && !exiting) | |
640 { | |
641 #ifdef FEAT_GUI | |
642 if (gui.in_use) | |
643 gui_new_shellsize(); | |
644 else | |
645 #endif | |
646 mch_new_shellsize(); | |
647 } | |
648 } | |
649 | |
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650 #if ((defined(FEAT_EVAL) || defined(FEAT_TERMINAL)) \ |
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651 && (defined(FEAT_GUI) \ |
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652 || defined(MSWIN) \ |
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653 || (defined(HAVE_TGETENT) && defined(FEAT_TERMRESPONSE)))) \ |
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654 || defined(PROTO) |
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655 /* |
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656 * Get the window position in pixels, if possible. |
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657 * Return FAIL when not possible. |
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658 */ |
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659 int |
18139
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660 ui_get_winpos(int *x, int *y, varnumber_T timeout UNUSED) |
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661 { |
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662 # ifdef FEAT_GUI |
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663 if (gui.in_use) |
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664 return gui_mch_get_winpos(x, y); |
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665 # endif |
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666 # if defined(MSWIN) && (!defined(FEAT_GUI) || defined(VIMDLL)) |
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667 return mch_get_winpos(x, y); |
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668 # else |
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669 # if defined(HAVE_TGETENT) && defined(FEAT_TERMRESPONSE) |
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670 return term_get_winpos(x, y, timeout); |
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671 # else |
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672 return FAIL; |
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673 # endif |
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674 # endif |
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675 } |
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676 #endif |
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677 |
7 | 678 void |
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679 ui_breakcheck(void) |
7 | 680 { |
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681 ui_breakcheck_force(FALSE); |
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682 } |
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683 |
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684 /* |
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685 * When "force" is true also check when the terminal is not in raw mode. |
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686 * This is useful to read input on channels. |
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687 */ |
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688 void |
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689 ui_breakcheck_force(int force) |
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690 { |
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691 static int recursive = FALSE; |
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692 int save_updating_screen = updating_screen; |
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693 |
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694 // We could be called recursively if stderr is redirected, calling |
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695 // fill_input_buf() calls settmode() when stdin isn't a tty. settmode() |
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696 // calls vgetorpeek() which calls ui_breakcheck() again. |
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697 if (recursive) |
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698 return; |
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699 recursive = TRUE; |
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700 |
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701 // We do not want gui_resize_shell() to redraw the screen here. |
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702 ++updating_screen; |
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703 |
7 | 704 #ifdef FEAT_GUI |
705 if (gui.in_use) | |
706 gui_mch_update(); | |
707 else | |
708 #endif | |
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709 mch_breakcheck(force); |
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710 |
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711 if (save_updating_screen) |
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712 updating_screen = TRUE; |
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713 else |
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714 after_updating_screen(FALSE); |
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715 |
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716 recursive = FALSE; |
7 | 717 } |
718 | |
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719 ////////////////////////////////////////////////////////////////////////////// |
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720 // Functions that handle the input buffer. |
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721 // This is used for any GUI version, and the unix terminal version. |
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722 // |
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723 // For Unix, the input characters are buffered to be able to check for a |
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724 // CTRL-C. This should be done with signals, but I don't know how to do that |
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725 // in a portable way for a tty in RAW mode. |
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726 // |
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727 // For the client-server code in the console the received keys are put in the |
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728 // input buffer. |
7 | 729 |
730 #if defined(USE_INPUT_BUF) || defined(PROTO) | |
731 | |
732 /* | |
733 * Internal typeahead buffer. Includes extra space for long key code | |
734 * descriptions which would otherwise overflow. The buffer is considered full | |
735 * when only this extra space (or part of it) remains. | |
736 */ | |
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737 #if defined(FEAT_JOB_CHANNEL) || defined(FEAT_CLIENTSERVER) |
7 | 738 /* |
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739 * NetBeans stuffs debugger commands into the input buffer. |
7 | 740 * This requires a larger buffer... |
741 * (Madsen) Go with this for remote input as well ... | |
742 */ | |
743 # define INBUFLEN 4096 | |
744 #else | |
745 # define INBUFLEN 250 | |
746 #endif | |
747 | |
748 static char_u inbuf[INBUFLEN + MAX_KEY_CODE_LEN]; | |
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749 static int inbufcount = 0; // number of chars in inbuf[] |
7 | 750 |
751 /* | |
752 * vim_is_input_buf_full(), vim_is_input_buf_empty(), add_to_input_buf(), and | |
753 * trash_input_buf() are functions for manipulating the input buffer. These | |
754 * are used by the gui_* calls when a GUI is used to handle keyboard input. | |
755 */ | |
756 | |
757 int | |
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758 vim_is_input_buf_full(void) |
7 | 759 { |
760 return (inbufcount >= INBUFLEN); | |
761 } | |
762 | |
763 int | |
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764 vim_is_input_buf_empty(void) |
7 | 765 { |
766 return (inbufcount == 0); | |
767 } | |
768 | |
769 #if defined(FEAT_OLE) || defined(PROTO) | |
770 int | |
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771 vim_free_in_input_buf(void) |
7 | 772 { |
773 return (INBUFLEN - inbufcount); | |
774 } | |
775 #endif | |
776 | |
575 | 777 #if defined(FEAT_GUI_GTK) || defined(PROTO) |
7 | 778 int |
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779 vim_used_in_input_buf(void) |
7 | 780 { |
781 return inbufcount; | |
782 } | |
783 #endif | |
784 | |
785 /* | |
786 * Return the current contents of the input buffer and make it empty. | |
787 * The returned pointer must be passed to set_input_buf() later. | |
788 */ | |
789 char_u * | |
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790 get_input_buf(void) |
7 | 791 { |
792 garray_T *gap; | |
793 | |
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794 // We use a growarray to store the data pointer and the length. |
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795 gap = ALLOC_ONE(garray_T); |
7 | 796 if (gap != NULL) |
797 { | |
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798 // Add one to avoid a zero size. |
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799 gap->ga_data = alloc(inbufcount + 1); |
7 | 800 if (gap->ga_data != NULL) |
801 mch_memmove(gap->ga_data, inbuf, (size_t)inbufcount); | |
802 gap->ga_len = inbufcount; | |
803 } | |
804 trash_input_buf(); | |
805 return (char_u *)gap; | |
806 } | |
807 | |
808 /* | |
809 * Restore the input buffer with a pointer returned from get_input_buf(). | |
810 * The allocated memory is freed, this only works once! | |
811 */ | |
812 void | |
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813 set_input_buf(char_u *p) |
7 | 814 { |
815 garray_T *gap = (garray_T *)p; | |
816 | |
817 if (gap != NULL) | |
818 { | |
819 if (gap->ga_data != NULL) | |
820 { | |
821 mch_memmove(inbuf, gap->ga_data, gap->ga_len); | |
822 inbufcount = gap->ga_len; | |
823 vim_free(gap->ga_data); | |
824 } | |
825 vim_free(gap); | |
826 } | |
827 } | |
828 | |
829 /* | |
830 * Add the given bytes to the input buffer | |
831 * Special keys start with CSI. A real CSI must have been translated to | |
832 * CSI KS_EXTRA KE_CSI. K_SPECIAL doesn't require translation. | |
833 */ | |
834 void | |
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835 add_to_input_buf(char_u *s, int len) |
7 | 836 { |
837 if (inbufcount + len > INBUFLEN + MAX_KEY_CODE_LEN) | |
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838 return; // Shouldn't ever happen! |
7 | 839 |
840 while (len--) | |
841 inbuf[inbufcount++] = *s++; | |
842 } | |
843 | |
844 /* | |
845 * Add "str[len]" to the input buffer while escaping CSI bytes. | |
846 */ | |
847 void | |
848 add_to_input_buf_csi(char_u *str, int len) | |
849 { | |
850 int i; | |
851 char_u buf[2]; | |
852 | |
853 for (i = 0; i < len; ++i) | |
854 { | |
855 add_to_input_buf(str + i, 1); | |
856 if (str[i] == CSI) | |
857 { | |
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858 // Turn CSI into K_CSI. |
7 | 859 buf[0] = KS_EXTRA; |
860 buf[1] = (int)KE_CSI; | |
861 add_to_input_buf(buf, 2); | |
862 } | |
863 } | |
864 } | |
865 | |
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866 /* |
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867 * Remove everything from the input buffer. Called when ^C is found. |
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868 */ |
7 | 869 void |
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870 trash_input_buf(void) |
7 | 871 { |
872 inbufcount = 0; | |
873 } | |
874 | |
875 /* | |
876 * Read as much data from the input buffer as possible up to maxlen, and store | |
877 * it in buf. | |
878 */ | |
879 int | |
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880 read_from_input_buf(char_u *buf, long maxlen) |
7 | 881 { |
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882 if (inbufcount == 0) // if the buffer is empty, fill it |
7 | 883 fill_input_buf(TRUE); |
884 if (maxlen > inbufcount) | |
885 maxlen = inbufcount; | |
886 mch_memmove(buf, inbuf, (size_t)maxlen); | |
887 inbufcount -= maxlen; | |
888 if (inbufcount) | |
889 mch_memmove(inbuf, inbuf + maxlen, (size_t)inbufcount); | |
890 return (int)maxlen; | |
891 } | |
892 | |
893 void | |
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894 fill_input_buf(int exit_on_error UNUSED) |
7 | 895 { |
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896 #if defined(UNIX) || defined(VMS) || defined(MACOS_X) |
7 | 897 int len; |
898 int try; | |
899 static int did_read_something = FALSE; | |
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900 static char_u *rest = NULL; // unconverted rest of previous read |
7 | 901 static int restlen = 0; |
902 int unconverted; | |
903 #endif | |
904 | |
905 #ifdef FEAT_GUI | |
294 | 906 if (gui.in_use |
907 # ifdef NO_CONSOLE_INPUT | |
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908 // Don't use the GUI input when the window hasn't been opened yet. |
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909 // We get here from ui_inchar() when we should try reading from stdin. |
294 | 910 && !no_console_input() |
911 # endif | |
912 ) | |
7 | 913 { |
914 gui_mch_update(); | |
915 return; | |
916 } | |
917 #endif | |
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918 #if defined(UNIX) || defined(VMS) || defined(MACOS_X) |
7 | 919 if (vim_is_input_buf_full()) |
920 return; | |
921 /* | |
922 * Fill_input_buf() is only called when we really need a character. | |
923 * If we can't get any, but there is some in the buffer, just return. | |
924 * If we can't get any, and there isn't any in the buffer, we give up and | |
925 * exit Vim. | |
926 */ | |
927 if (rest != NULL) | |
928 { | |
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929 // Use remainder of previous call, starts with an invalid character |
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930 // that may become valid when reading more. |
7 | 931 if (restlen > INBUFLEN - inbufcount) |
932 unconverted = INBUFLEN - inbufcount; | |
933 else | |
934 unconverted = restlen; | |
935 mch_memmove(inbuf + inbufcount, rest, unconverted); | |
936 if (unconverted == restlen) | |
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937 VIM_CLEAR(rest); |
7 | 938 else |
939 { | |
940 restlen -= unconverted; | |
941 mch_memmove(rest, rest + unconverted, restlen); | |
942 } | |
943 inbufcount += unconverted; | |
944 } | |
945 else | |
946 unconverted = 0; | |
947 | |
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948 len = 0; // to avoid gcc warning |
7 | 949 for (try = 0; try < 100; ++try) |
950 { | |
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951 size_t readlen = (size_t)((INBUFLEN - inbufcount) |
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952 / input_conv.vc_factor); |
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953 # ifdef VMS |
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954 len = vms_read((char *)inbuf + inbufcount, readlen); |
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955 # else |
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956 len = read(read_cmd_fd, (char *)inbuf + inbufcount, readlen); |
7 | 957 # endif |
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958 # ifdef FEAT_JOB_CHANNEL |
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959 if (len > 0) |
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960 { |
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961 inbuf[inbufcount + len] = NUL; |
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962 ch_log(NULL, "raw key input: \"%s\"", inbuf + inbufcount); |
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963 } |
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964 # endif |
169 | 965 |
7 | 966 if (len > 0 || got_int) |
967 break; | |
968 /* | |
969 * If reading stdin results in an error, continue reading stderr. | |
970 * This helps when using "foo | xargs vim". | |
971 */ | |
972 if (!did_read_something && !isatty(read_cmd_fd) && read_cmd_fd == 0) | |
973 { | |
974 int m = cur_tmode; | |
975 | |
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976 // We probably set the wrong file descriptor to raw mode. Switch |
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977 // back to cooked mode, use another descriptor and set the mode to |
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978 // what it was. |
7 | 979 settmode(TMODE_COOK); |
980 #ifdef HAVE_DUP | |
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981 // Use stderr for stdin, also works for shell commands. |
7 | 982 close(0); |
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983 vim_ignored = dup(2); |
7 | 984 #else |
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985 read_cmd_fd = 2; // read from stderr instead of stdin |
7 | 986 #endif |
987 settmode(m); | |
988 } | |
989 if (!exit_on_error) | |
990 return; | |
991 } | |
992 if (len <= 0 && !got_int) | |
993 read_error_exit(); | |
994 if (len > 0) | |
995 did_read_something = TRUE; | |
996 if (got_int) | |
997 { | |
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998 // Interrupted, pretend a CTRL-C was typed. |
7 | 999 inbuf[0] = 3; |
1000 inbufcount = 1; | |
1001 } | |
1002 else | |
1003 { | |
1004 /* | |
1005 * May perform conversion on the input characters. | |
1006 * Include the unconverted rest of the previous call. | |
1007 * If there is an incomplete char at the end it is kept for the next | |
1008 * time, reading more bytes should make conversion possible. | |
1009 * Don't do this in the unlikely event that the input buffer is too | |
1010 * small ("rest" still contains more bytes). | |
1011 */ | |
1012 if (input_conv.vc_type != CONV_NONE) | |
1013 { | |
1014 inbufcount -= unconverted; | |
1015 len = convert_input_safe(inbuf + inbufcount, | |
1016 len + unconverted, INBUFLEN - inbufcount, | |
1017 rest == NULL ? &rest : NULL, &restlen); | |
1018 } | |
1019 while (len-- > 0) | |
1020 { | |
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1021 // If a CTRL-C was typed, remove it from the buffer and set |
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1022 // got_int. Also recognize CTRL-C with modifyOtherKeys set, in two |
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1023 // forms. |
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1024 if (ctrl_c_interrupts && (inbuf[inbufcount] == 3 |
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1025 || (len >= 10 && STRNCMP(inbuf + inbufcount, |
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1026 "\033[27;5;99~", 10) == 0) |
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1027 || (len >= 7 && STRNCMP(inbuf + inbufcount, |
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1028 "\033[99;5u", 7) == 0))) |
7 | 1029 { |
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1030 // remove everything typed before the CTRL-C |
7 | 1031 mch_memmove(inbuf, inbuf + inbufcount, (size_t)(len + 1)); |
1032 inbufcount = 0; | |
1033 got_int = TRUE; | |
1034 } | |
1035 ++inbufcount; | |
1036 } | |
1037 } | |
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1038 #endif // UNIX || VMS || MACOS_X |
7 | 1039 } |
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1040 #endif // USE_INPUT_BUF |
7 | 1041 |
1042 /* | |
1043 * Exit because of an input read error. | |
1044 */ | |
1045 void | |
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1046 read_error_exit(void) |
7 | 1047 { |
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1048 if (silent_mode) // Normal way to exit for "ex -s" |
7 | 1049 getout(0); |
1050 STRCPY(IObuff, _("Vim: Error reading input, exiting...\n")); | |
1051 preserve_exit(); | |
1052 } | |
1053 | |
1054 #if defined(CURSOR_SHAPE) || defined(PROTO) | |
1055 /* | |
1056 * May update the shape of the cursor. | |
1057 */ | |
1058 void | |
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1059 ui_cursor_shape_forced(int forced) |
7 | 1060 { |
1061 # ifdef FEAT_GUI | |
1062 if (gui.in_use) | |
1063 gui_update_cursor_later(); | |
36 | 1064 else |
7 | 1065 # endif |
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1066 term_cursor_mode(forced); |
36 | 1067 |
7 | 1068 # ifdef MCH_CURSOR_SHAPE |
1069 mch_update_cursor(); | |
1070 # endif | |
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1071 |
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1072 # ifdef FEAT_CONCEAL |
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1073 conceal_check_cursor_line(); |
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1074 # endif |
7 | 1075 } |
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1076 |
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1077 void |
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1078 ui_cursor_shape(void) |
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1079 { |
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1080 ui_cursor_shape_forced(FALSE); |
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1081 } |
7 | 1082 #endif |
1083 | |
1084 /* | |
1085 * Check bounds for column number | |
1086 */ | |
1087 int | |
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1088 check_col(int col) |
7 | 1089 { |
1090 if (col < 0) | |
1091 return 0; | |
1092 if (col >= (int)screen_Columns) | |
1093 return (int)screen_Columns - 1; | |
1094 return col; | |
1095 } | |
1096 | |
1097 /* | |
1098 * Check bounds for row number | |
1099 */ | |
1100 int | |
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1101 check_row(int row) |
7 | 1102 { |
1103 if (row < 0) | |
1104 return 0; | |
1105 if (row >= (int)screen_Rows) | |
1106 return (int)screen_Rows - 1; | |
1107 return row; | |
1108 } | |
1109 | |
1110 /* | |
1111 * Called when focus changed. Used for the GUI or for systems where this can | |
1112 * be done in the console (Win32). | |
1113 */ | |
1114 void | |
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1115 ui_focus_change( |
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1116 int in_focus) // TRUE if focus gained. |
7 | 1117 { |
1118 static time_t last_time = (time_t)0; | |
1119 int need_redraw = FALSE; | |
1120 | |
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1121 // When activated: Check if any file was modified outside of Vim. |
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1122 // Only do this when not done within the last two seconds (could get |
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1123 // several events in a row). |
7 | 1124 if (in_focus && last_time + 2 < time(NULL)) |
1125 { | |
1126 need_redraw = check_timestamps( | |
1127 # ifdef FEAT_GUI | |
1128 gui.in_use | |
1129 # else | |
1130 FALSE | |
1131 # endif | |
1132 ); | |
1133 last_time = time(NULL); | |
1134 } | |
1135 | |
1136 /* | |
1137 * Fire the focus gained/lost autocommand. | |
1138 */ | |
1139 need_redraw |= apply_autocmds(in_focus ? EVENT_FOCUSGAINED | |
1140 : EVENT_FOCUSLOST, NULL, NULL, FALSE, curbuf); | |
1141 | |
1142 if (need_redraw) | |
1143 { | |
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1144 // Something was executed, make sure the cursor is put back where it |
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1145 // belongs. |
7 | 1146 need_wait_return = FALSE; |
1147 | |
1148 if (State & CMDLINE) | |
1149 redrawcmdline(); | |
1150 else if (State == HITRETURN || State == SETWSIZE || State == ASKMORE | |
1151 || State == EXTERNCMD || State == CONFIRM || exmode_active) | |
1152 repeat_message(); | |
1153 else if ((State & NORMAL) || (State & INSERT)) | |
1154 { | |
1155 if (must_redraw != 0) | |
1156 update_screen(0); | |
1157 setcursor(); | |
1158 } | |
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1159 cursor_on(); // redrawing may have switched it off |
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1160 out_flush_cursor(FALSE, TRUE); |
7 | 1161 # ifdef FEAT_GUI |
1162 if (gui.in_use) | |
1163 gui_update_scrollbars(FALSE); | |
1164 # endif | |
1165 } | |
1166 #ifdef FEAT_TITLE | |
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1167 // File may have been changed from 'readonly' to 'noreadonly' |
7 | 1168 if (need_maketitle) |
1169 maketitle(); | |
1170 #endif | |
1171 } | |
1172 | |
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1173 #if defined(HAVE_INPUT_METHOD) || defined(PROTO) |
7 | 1174 /* |
1175 * Save current Input Method status to specified place. | |
1176 */ | |
1177 void | |
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1178 im_save_status(long *psave) |
7 | 1179 { |
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1180 // Don't save when 'imdisable' is set or "xic" is NULL, IM is always |
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1181 // disabled then (but might start later). |
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1182 // Also don't save when inside a mapping, vgetc_im_active has not been set |
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1183 // then. |
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1184 // And don't save when the keys were stuffed (e.g., for a "." command). |
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1185 // And don't save when the GUI is running but our window doesn't have |
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1186 // input focus (e.g., when a find dialog is open). |
7 | 1187 if (!p_imdisable && KeyTyped && !KeyStuffed |
1188 # ifdef FEAT_XIM | |
1189 && xic != NULL | |
1190 # endif | |
1191 # ifdef FEAT_GUI | |
1192 && (!gui.in_use || gui.in_focus) | |
1193 # endif | |
1194 ) | |
1195 { | |
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1196 // Do save when IM is on, or IM is off and saved status is on. |
7 | 1197 if (vgetc_im_active) |
1198 *psave = B_IMODE_IM; | |
1199 else if (*psave == B_IMODE_IM) | |
1200 *psave = B_IMODE_NONE; | |
1201 } | |
1202 } | |
1203 #endif |