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annotate dynload/dynload_unix.c @ 232:76ed51a690a6

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- todo comment
author Tassilo Philipp
date Sun, 16 Apr 2017 15:08:50 +0200
parents 011b5e3a8548
children 85b61e8facfe
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1 /*
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2
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3 Package: dyncall
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4 Library: dynload
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5 File: dynload/dynload_unix.c
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6 Description:
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7 License:
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8
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9 Copyright (c) 2007-2015 Daniel Adler <dadler@uni-goettingen.de>,
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10 Tassilo Philipp <tphilipp@potion-studios.com>
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11
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12 Permission to use, copy, modify, and distribute this software for any
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13 purpose with or without fee is hereby granted, provided that the above
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14 copyright notice and this permission notice appear in all copies.
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15
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16 THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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17 WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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18 MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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19 ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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20 WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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21 ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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22 OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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23
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24 */
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25
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26
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27
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28 /*
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29
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30 dynload_unix.c
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31
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32 dynload module for .so (unix) and .dylib (mach-o darwin/OS X) files
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33
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34 */
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35
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36
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37 #include "dynload.h"
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38
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39 #include <dlfcn.h>
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41
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42 DLLib* dlLoadLibrary(const char* libPath)
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43 {
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44 return (DLLib*)dlopen(libPath, RTLD_NOW|RTLD_GLOBAL); //@@@ should use RTLD_LAZY, maybe?
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45 }
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47
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48 void* dlFindSymbol(DLLib* libHandle, const char* symbol)
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49 {
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50 return dlsym((void*)libHandle, symbol);
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51 }
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53
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54 void dlFreeLibrary(DLLib* libHandle)
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55 {
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56
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57 /* Check for NULL for cross-platform consistency. *BSD seems to do that in
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58 dlclose, Linux does not. POSIX states "if handle does not refer to an open
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59 object, dlclose() returns a non-zero value", which unfortunately sounds
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60 like it's not explicitly specified. */
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61 if(libHandle)
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62 dlclose((void*)libHandle);
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63 }
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