ui/common/condvar.c

Tue, 29 Oct 2024 11:52:01 +0100

author
Olaf Wintermann <olaf.wintermann@gmail.com>
date
Tue, 29 Oct 2024 11:52:01 +0100
branch
newapi
changeset 370
822fcb83bdf1
parent 349
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permissions
-rw-r--r--

improve window close handling

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1 /*
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2 * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS HEADER.
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3 *
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4 * Copyright 2024 Olaf Wintermann. All rights reserved.
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5 *
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6 * Redistribution and use in source and binary forms, with or without
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7 * modification, are permitted provided that the following conditions are met:
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8 *
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9 * 1. Redistributions of source code must retain the above copyright
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10 * notice, this list of conditions and the following disclaimer.
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11 *
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12 * 2. Redistributions in binary form must reproduce the above copyright
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13 * notice, this list of conditions and the following disclaimer in the
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14 * documentation and/or other materials provided with the distribution.
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15 *
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16 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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17 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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19 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE
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20 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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21 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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22 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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23 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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24 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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25 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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26 * POSSIBILITY OF SUCH DAMAGE.
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27 */
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28
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29 #include "condvar.h"
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30
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31
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32
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33 UiCondVar* ui_condvar_create(void) {
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34 UiPosixCondVar *var = malloc(sizeof(UiPosixCondVar));
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35 var->var.data = NULL;
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36 var->var.intdata = 0;
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37 var->set = 0;
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38 pthread_mutex_init(&var->lock, NULL);
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39 pthread_cond_init(&var->cond, NULL);
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40 return (UiCondVar*)var;
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41 }
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42
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43 void ui_condvar_wait(UiCondVar *var) {
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44 UiPosixCondVar *p = (UiPosixCondVar*)var;
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45 pthread_mutex_lock(&p->lock);
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46 if(!p->set) {
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47 pthread_cond_wait(&p->cond, &p->lock);
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48 }
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49 p->set = 0;
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50 pthread_mutex_unlock(&p->lock);
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51
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52 }
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53
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54 void ui_condvar_signal(UiCondVar *var, void *data, int intdata) {
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55 UiPosixCondVar *p = (UiPosixCondVar*)var;
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56 pthread_mutex_lock(&p->lock);
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57 p->var.data = data;
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58 p->var.intdata = intdata;
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59 p->set = 1;
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60 pthread_cond_signal(&p->cond);
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61 pthread_mutex_unlock(&p->lock);
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62 }
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63
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64 void ui_condvar_destroy(UiCondVar *var) {
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65 UiPosixCondVar *p = (UiPosixCondVar*)var;
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66 pthread_mutex_destroy(&p->lock);
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67 pthread_cond_destroy(&p->cond);
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68 free(p);
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69
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70 }

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