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annotate xwrited-debug.c @ 6:c2ddd2f977d1

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author Guido Berhoerster <guido+xwrited@berhoerster.name>
date Sun, 27 Apr 2014 23:12:06 +0200
parents 0907cc7064d4
children 4a5330979433
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1 /*
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2 * Copyright (C) 2014 Guido Berhoerster <guido+xwrited@berhoerster.name>
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3 *
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4 * Permission is hereby granted, free of charge, to any person obtaining
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5 * a copy of this software and associated documentation files (the
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6 * "Software"), to deal in the Software without restriction, including
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7 * without limitation the rights to use, copy, modify, merge, publish,
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8 * distribute, sublicense, and/or sell copies of the Software, and to
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9 * permit persons to whom the Software is furnished to do so, subject to
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10 * the following conditions:
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11 *
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12 * The above copyright notice and this permission notice shall be included
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13 * in all copies or substantial portions of the Software.
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14 *
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15 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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16 * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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17 * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT.
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18 * IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY
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19 * CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT,
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20 * TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE
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21 * SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
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22 */
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23
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24 #define _XOPEN_SOURCE 600
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25
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26 #include <string.h>
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27 #include <stdarg.h>
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28 #include <glib.h>
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29
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30 #include "xwrited-debug.h"
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31
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32 #if !GLIB_CHECK_VERSION(2, 32, 0)
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33 static void
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34 dummy_log_handler(const gchar *log_domain, GLogLevelFlags log_level,
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35 const gchar *message, gpointer data)
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36 {
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37 /* drop all messages */
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38 }
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39 #endif /* !GLIB_CHECK_VERSION (2,32,0) */
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40
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41 void
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42 xwrited_debug_init(gboolean debug_mode)
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43 {
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44 /*
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45 * glib >= 2.32 only shows debug messages if the G_MESSAGES_DEBUG
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46 * environment variable contains the log domain or "all", earlier glib
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47 * version always show debugging output
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48 */
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49 #if GLIB_CHECK_VERSION(2, 32, 0)
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50 const gchar *debug_env;
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51 gchar *debug_env_new;
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52
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53 if (debug_mode) {
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54 debug_env = g_getenv("G_MESSAGES_DEBUG");
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55
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56 if (debug_env == NULL) {
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57 g_setenv("G_MESSAGES_DEBUG", G_LOG_DOMAIN, TRUE);
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58 } else if (strstr(debug_env, G_LOG_DOMAIN) == NULL) {
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59 debug_env_new = g_strdup_printf("%s %s", debug_env,
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60 G_LOG_DOMAIN);
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61 g_setenv("G_MESSAGES_DEBUG", debug_env_new, TRUE);
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62 g_free(debug_env_new);
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63 }
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64 }
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65 #else
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66 if (!debug_mode) {
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67 g_log_set_handler(G_LOG_DOMAIN, G_LOG_LEVEL_DEBUG,
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68 dummy_log_handler, NULL);
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69 }
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70 #endif /* GLIB_CHECK_VERSION (2,32,0) */
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71 }