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Use enum array_type instead of int
author David Demelier <markand@malikania.fr>
date Fri, 07 Oct 2011 16:47:55 +0200
parents 23a3ebcbf08e
children
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726b181b8956 Added module.c and module.h portable way to manipulate DSO
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1 /*
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2 * module.c -- portable functions to manipulate dynamic libraries
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3 *
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4 * Copyright (c) 2011, David Demelier <markand@malikania.fr>
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5 *
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6 * Permission to use, copy, modify, and/or distribute this software for any
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7 * purpose with or without fee is hereby granted, provided that the above
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8 * copyright notice and this permission notice appear in all copies.
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9 *
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10 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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11 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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12 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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13 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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14 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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15 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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16 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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17 */
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18
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19 #include <stdio.h>
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20 #include <stdlib.h>
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21
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22 #include "module.h"
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23
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24 struct module *
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25 module_load(const char *path, int flags)
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26 {
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27 struct module *mod;
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28
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29 if ((mod = malloc(sizeof (struct module))) == NULL)
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30 return NULL;
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31
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32 /* Flags are not supported on Windows */
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33 #if defined(_WIN32) || defined(__WIN32__)
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34 (void) flags;
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35 mod->handler = LoadLibrary(path);
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36 #else
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37 mod->handler = dlopen(path, flags);
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38 #endif
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39
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40 if (!(mod->handler)) {
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41 module_free(mod);
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42 return NULL;
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43 }
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44
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45 return mod;
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46 }
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47
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48 int
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49 module_find(struct module *mod, const char *sym)
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50 {
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51 #if defined(_WIN32) || defined(__WIN32__)
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52 mod->sym = GetProcAddress(mod->handler, sym);
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53 #else
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54 mod->sym = dlsym(mod->handler, sym);
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55 #endif
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56
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57 if (!(mod->sym))
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58 return -1;
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59
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60 return 0;
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61 }
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62
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63 void
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64 module_free(struct module *mod)
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65 {
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66 #if defined(_WIN32) || defined(__WIN32__)
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67 FreeLibrary(mod->handler);
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68 #else
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69 dlclose(mod->handler);
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70 #endif
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72 free(mod);
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73 }