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7d02a0b0 GB |
1 | /* |
2 | * Viking - GPS data editor | |
a482007a | 3 | * Copyright (C) 2007, Guilhem Bonnefille <guilhem.bonnefille@gmail.com> |
44871dd1 | 4 | * Copyright (C) 2014, Rob Norris <rw_norris@hotmail.com> |
7d02a0b0 | 5 | * Based on: |
a482007a | 6 | * Copyright (C) 2003-2007, Leandro A. F. Pereira <leandro@linuxmag.com.br> |
7d02a0b0 GB |
7 | * |
8 | * This program is free software; you can redistribute it and/or modify | |
9 | * it under the terms of the GNU General Public License as published by | |
10 | * the Free Software Foundation, version 2. | |
11 | * | |
12 | * This program is distributed in the hope that it will be useful, | |
13 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
14 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
15 | * GNU General Public License for more details. | |
16 | * | |
17 | * You should have received a copy of the GNU General Public License | |
18 | * along with this program; if not, write to the Free Software | |
19 | * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA | |
20 | */ | |
5ab2942c | 21 | /* |
6a280b85 RN |
22 | * Dependencies must be just on Glib |
23 | * see ui_utils for thing that depend on Gtk | |
5ab2942c RN |
24 | * see vikutils for things that further depend on other Viking types |
25 | */ | |
4c77d5e0 GB |
26 | #ifdef HAVE_CONFIG_H |
27 | #include "config.h" | |
28 | #endif | |
29 | ||
91c46f90 | 30 | #include <glib/gstdio.h> |
4c77d5e0 | 31 | #include <glib/gi18n.h> |
c612e922 | 32 | #include <glib/gprintf.h> |
73def8cb | 33 | #include <gio/gio.h> |
7d02a0b0 | 34 | |
8e562a70 | 35 | #include "util.h" |
81bf47ee | 36 | #include "globals.h" |
7d02a0b0 | 37 | |
6b6225cb RN |
38 | #ifdef WINDOWS |
39 | #include <windows.h> | |
40 | #else | |
41 | #include <unistd.h> | |
42 | #endif | |
43 | ||
44 | guint util_get_number_of_cpus () | |
45 | { | |
46 | #if GLIB_CHECK_VERSION (2, 36, 0) | |
47 | return g_get_num_processors(); | |
48 | #else | |
49 | long nprocs = 1; | |
50 | #ifdef WINDOWS | |
51 | SYSTEM_INFO info; | |
52 | GetSystemInfo(&info); | |
53 | nprocs = info.dwNumberOfProcessors; | |
54 | #else | |
55 | #ifdef _SC_NPROCESSORS_ONLN | |
56 | nprocs = sysconf(_SC_NPROCESSORS_ONLN); | |
57 | if (nprocs < 1) | |
58 | nprocs = 1; | |
59 | #endif | |
60 | #endif | |
61 | return nprocs; | |
62 | #endif | |
63 | } | |
64 | ||
ba4a5e11 GB |
65 | gchar *uri_escape(gchar *str) |
66 | { | |
67 | gchar *esc_str = g_malloc(3*strlen(str)); | |
68 | gchar *dst = esc_str; | |
69 | gchar *src; | |
70 | ||
71 | for (src = str; *src; src++) { | |
72 | if (*src == ' ') | |
73 | *dst++ = '+'; | |
74 | else if (g_ascii_isalnum(*src)) | |
31317f6a | 75 | *dst++ = *src; |
ba4a5e11 | 76 | else { |
31317f6a RN |
77 | int x = g_snprintf(dst, 3, "%%%02hX", *src); |
78 | dst += x; | |
ba4a5e11 GB |
79 | } |
80 | } | |
81 | *dst = '\0'; | |
82 | ||
83 | return(esc_str); | |
84 | } | |
85 | ||
70434be3 GB |
86 | |
87 | GList * str_array_to_glist(gchar* data[]) | |
88 | { | |
89 | GList *gl = NULL; | |
90 | gpointer * p; | |
91 | for (p = (gpointer)data; *p; p++) | |
92 | gl = g_list_prepend(gl, *p); | |
93 | return g_list_reverse(gl); | |
94 | } | |
9106934d | 95 | |
0da89d90 RN |
96 | /** |
97 | * split_string_from_file_on_equals: | |
98 | * | |
99 | * @buf: the input string | |
100 | * @key: newly allocated string that is before the '=' | |
101 | * @val: newly allocated string after the '=' | |
102 | * | |
103 | * Designed for file line processing, so it ignores strings beginning with special | |
104 | * characters, such as '#'; returns false in such situations. | |
105 | * Also returns false if no equals character is found | |
106 | * | |
107 | * e.g. if buf = "GPS.parameter=42" | |
108 | * key = "GPS.parameter" | |
109 | * val = "42" | |
110 | */ | |
111 | gboolean split_string_from_file_on_equals ( const gchar *buf, gchar **key, gchar **val ) | |
9106934d | 112 | { |
9106934d RN |
113 | // comments, special characters in viking file format |
114 | if ( buf == NULL || buf[0] == '\0' || buf[0] == '~' || buf[0] == '=' || buf[0] == '#' ) | |
115 | return FALSE; | |
0da89d90 RN |
116 | |
117 | if ( ! strchr ( buf, '=' ) ) | |
9106934d | 118 | return FALSE; |
0da89d90 RN |
119 | |
120 | gchar **strv = g_strsplit ( buf, "=", 2 ); | |
121 | ||
122 | gint gi = 0; | |
123 | gchar *str = strv[gi]; | |
124 | while ( str ) { | |
125 | if ( gi == 0 ) | |
126 | *key = g_strdup ( str ); | |
127 | else | |
128 | *val = g_strdup ( str ); | |
129 | gi++; | |
130 | str = strv[gi]; | |
131 | } | |
132 | ||
133 | g_strfreev ( strv ); | |
134 | ||
135 | // Remove newline from val and also any other whitespace | |
136 | *key = g_strstrip ( *key ); | |
137 | *val = g_strstrip ( *val ); | |
9106934d RN |
138 | return TRUE; |
139 | } | |
44871dd1 RN |
140 | |
141 | static GSList* deletion_list = NULL; | |
142 | ||
143 | /** | |
144 | * util_add_to_deletion_list: | |
145 | * | |
146 | * Add a name of a file into the list that is to be deleted on program exit | |
147 | * Normally this is for files that get used asynchronously, | |
148 | * so we don't know when it's time to delete them - other than at this program's end | |
149 | */ | |
150 | void util_add_to_deletion_list ( const gchar* filename ) | |
151 | { | |
152 | deletion_list = g_slist_append ( deletion_list, g_strdup (filename) ); | |
153 | } | |
154 | ||
155 | /** | |
156 | * util_remove_all_in_deletion_list: | |
157 | * | |
158 | * Delete all the files in the deletion list | |
159 | * This should only be called on program exit | |
160 | */ | |
161 | void util_remove_all_in_deletion_list ( void ) | |
162 | { | |
163 | while ( deletion_list ) | |
164 | { | |
fd437981 RN |
165 | if ( g_remove ( (const char*)deletion_list->data ) ) |
166 | g_warning ( "%s: Failed to remove %s", __FUNCTION__, (char*)deletion_list->data ); | |
44871dd1 RN |
167 | g_free ( deletion_list->data ); |
168 | deletion_list = g_slist_delete_link ( deletion_list, deletion_list ); | |
169 | } | |
170 | } | |
6a280b85 RN |
171 | |
172 | /** | |
173 | * Removes characters from a string, in place. | |
174 | * | |
175 | * @param string String to search. | |
176 | * @param chars Characters to remove. | |
177 | * | |
178 | * @return @a string - return value is only useful when nesting function calls, e.g.: | |
179 | * @code str = utils_str_remove_chars(g_strdup("f_o_o"), "_"); @endcode | |
180 | * | |
181 | * @see @c g_strdelimit. | |
182 | **/ | |
183 | gchar *util_str_remove_chars(gchar *string, const gchar *chars) | |
184 | { | |
185 | const gchar *r; | |
186 | gchar *w = string; | |
187 | ||
188 | g_return_val_if_fail(string, NULL); | |
189 | if (G_UNLIKELY(EMPTY(chars))) | |
190 | return string; | |
191 | ||
192 | foreach_str(r, string) | |
193 | { | |
194 | if (!strchr(chars, *r)) | |
195 | *w++ = *r; | |
196 | } | |
197 | *w = 0x0; | |
198 | return string; | |
199 | } | |
81bf47ee RN |
200 | |
201 | /** | |
202 | * In 'extreme' debug mode don't remove temporary files | |
203 | * thus the contents can be inspected if things go wrong | |
204 | * with the trade off the user may need to delete tmp files manually | |
205 | * Only use this for 'occasional' downloaded temporary files that need interpretation, | |
206 | * rather than large volume items such as Bing attributions. | |
207 | */ | |
208 | int util_remove ( const gchar *filename ) | |
209 | { | |
210 | if ( vik_debug && vik_verbose ) { | |
211 | g_warning ( "Not removing file: %s", filename ); | |
212 | return 0; | |
213 | } | |
214 | else | |
215 | return g_remove ( filename ); | |
216 | } | |
73def8cb RN |
217 | |
218 | /** | |
219 | * Stream write buffer to a temporary file (in one go) | |
220 | * | |
221 | * @param buffer The buffer to write | |
222 | * @param count Size of the buffer to write | |
223 | * | |
224 | * @return the filename of the buffer that was written | |
225 | */ | |
226 | gchar* util_write_tmp_file_from_bytes ( const void *buffer, gsize count ) | |
227 | { | |
228 | GFileIOStream *gios; | |
229 | GError *error = NULL; | |
230 | gchar *tmpname = NULL; | |
231 | ||
232 | #if GLIB_CHECK_VERSION(2,32,0) | |
233 | GFile *gf = g_file_new_tmp ( "vik-tmp.XXXXXX", &gios, &error ); | |
234 | tmpname = g_file_get_path (gf); | |
235 | #else | |
236 | gint fd = g_file_open_tmp ( "vik-tmp.XXXXXX", &tmpname, &error ); | |
237 | if ( error ) { | |
238 | g_warning ( "%s", error->message ); | |
239 | g_error_free ( error ); | |
240 | return NULL; | |
241 | } | |
242 | gios = g_file_open_readwrite ( g_file_new_for_path (tmpname), NULL, &error ); | |
243 | if ( error ) { | |
244 | g_warning ( "%s", error->message ); | |
245 | g_error_free ( error ); | |
246 | return NULL; | |
247 | } | |
248 | #endif | |
249 | ||
250 | gios = g_file_open_readwrite ( g_file_new_for_path (tmpname), NULL, &error ); | |
251 | if ( error ) { | |
252 | g_warning ( "%s", error->message ); | |
253 | g_error_free ( error ); | |
254 | return NULL; | |
255 | } | |
256 | ||
257 | GOutputStream *gos = g_io_stream_get_output_stream ( G_IO_STREAM(gios) ); | |
258 | if ( g_output_stream_write ( gos, buffer, count, NULL, &error ) < 0 ) { | |
259 | g_critical ( "Couldn't write tmp %s file due to %s", tmpname, error->message ); | |
260 | g_free (tmpname); | |
261 | tmpname = NULL; | |
262 | } | |
263 | ||
264 | g_output_stream_close ( gos, NULL, &error ); | |
265 | g_object_unref ( gios ); | |
266 | ||
267 | return tmpname; | |
268 | } |