1 : /******************************************************************************
2 : * $Id$
3 : *
4 : * Project: GDAL Core
5 : * Purpose: The library set-up/clean-up routines.
6 : * Author: Mateusz Loskot <mateusz@loskot.net>
7 : *
8 : ******************************************************************************
9 : * Copyright (c) 2010, Mateusz Loskot <mateusz@loskot.net>
10 : *
11 : * Permission is hereby granted, free of charge, to any person obtaining a
12 : * copy of this software and associated documentation files (the "Software"),
13 : * to deal in the Software without restriction, including without limitation
14 : * the rights to use, copy, modify, merge, publish, distribute, sublicense,
15 : * and/or sell copies of the Software, and to permit persons to whom the
16 : * Software is furnished to do so, subject to the following conditions:
17 : *
18 : * The above copyright notice and this permission notice shall be included
19 : * in all copies or substantial portions of the Software.
20 : *
21 : * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS
22 : * OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
23 : * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
24 : * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
25 : * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
26 : * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
27 : * DEALINGS IN THE SOFTWARE.
28 : ****************************************************************************/
29 :
30 : #include "gdal.h"
31 : #include "ogr_api.h"
32 : #include "cpl_multiproc.h"
33 : #include "cpl_conv.h"
34 : #include "cpl_string.h"
35 :
36 : /************************************************************************/
37 : /* The library set-up/clean-up routines implemented with */
38 : /* GNU C/C++ extensions. */
39 : /* TODO: Is it Linux-only solution or Unix portable? */
40 : /************************************************************************/
41 : #ifdef __GNUC__
42 :
43 : static void GDALInitialize(void) __attribute__ ((constructor)) ;
44 : static void GDALDestroy(void) __attribute__ ((destructor)) ;
45 :
46 : /************************************************************************/
47 : /* Called when GDAL is loaded by loader or by dlopen(), */
48 : /* and before dlopen() returns. */
49 : /************************************************************************/
50 :
51 758 : static void GDALInitialize(void)
52 : {
53 : // nothing to do
54 : //CPLDebug("GDAL", "Library loaded");
55 758 : }
56 :
57 : /************************************************************************/
58 : /* Called when GDAL is unloaded by loader or by dlclose(), */
59 : /* and before dlclose() returns. */
60 : /************************************************************************/
61 :
62 0 : static void GDALDestroy(void)
63 : {
64 : // TODO: Confirm if calling CPLCleanupTLS here is safe
65 : //CPLCleanupTLS();
66 :
67 0 : if( !CSLTestBoolean(CPLGetConfigOption("GDAL_DESTROY", "YES")) )
68 0 : return;
69 :
70 0 : CPLDebug("GDAL", "In GDALDestroy - unloading GDAL shared library.");
71 0 : CPLSetConfigOption("GDAL_CLOSE_JP2ECW_RESOURCE", "NO");
72 0 : GDALDestroyDriverManager();
73 0 : CPLSetConfigOption("GDAL_CLOSE_JP2ECW_RESOURCE", NULL);
74 :
75 : #ifdef OGR_ENABLED
76 0 : OGRCleanupAll();
77 : #endif
78 : }
79 :
80 : #endif // __GNUC__
81 :
82 :
83 : /************************************************************************/
84 : /* The library set-up/clean-up routine implemented as DllMain entry */
85 : /* point specific for Windows. */
86 : /************************************************************************/
87 : #ifdef _MSC_VER
88 :
89 : #include <windows.h>
90 :
91 : extern "C" int WINAPI DllMain(HINSTANCE hInstance, DWORD dwReason, LPVOID lpReserved)
92 : {
93 : UNREFERENCED_PARAMETER(hInstance);
94 : UNREFERENCED_PARAMETER(lpReserved);
95 :
96 : if (dwReason == DLL_PROCESS_ATTACH)
97 : {
98 : // nothing to do
99 : }
100 : else if (dwReason == DLL_THREAD_ATTACH)
101 : {
102 : // nothing to do
103 : }
104 : else if (dwReason == DLL_THREAD_DETACH)
105 : {
106 : ::CPLCleanupTLS();
107 : }
108 : else if (dwReason == DLL_PROCESS_DETACH)
109 : {
110 : ::GDALDestroyDriverManager();
111 :
112 : #ifdef OGR_ENABLED
113 : ::OGRCleanupAll();
114 : #endif
115 : }
116 :
117 : return 1; // ignroed for all reasons but DLL_PROCESS_ATTACH
118 : }
119 :
120 : #endif // _MSC_VER
121 :
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