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annotate include/freeDiameter/extension.h @ 1327:82b386714795

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Set callback data also when only setting expire callback (and not answer callback as well). It is used when calling the expire callback, so not setting it makes no sense.
author Thomas Klausner <tk@giga.or.at>
date Mon, 27 Nov 2017 15:21:20 +0100
parents 1e1d6f94cd94
children a89913941dcf
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1 /*********************************************************************************************************
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2 * Software License Agreement (BSD License) *
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3 * Author: Sebastien Decugis <sdecugis@freediameter.net> *
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4 * *
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5 * Copyright (c) 2013, WIDE Project and NICT *
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6 * All rights reserved. *
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7 * *
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8 * Redistribution and use of this software in source and binary forms, with or without modification, are *
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9 * permitted provided that the following conditions are met: *
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10 * *
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11 * * Redistributions of source code must retain the above *
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12 * copyright notice, this list of conditions and the *
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13 * following disclaimer. *
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14 * *
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15 * * Redistributions in binary form must reproduce the above *
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16 * copyright notice, this list of conditions and the *
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17 * following disclaimer in the documentation and/or other *
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18 * materials provided with the distribution. *
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19 * *
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20 * * Neither the name of the WIDE Project or NICT nor the *
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21 * names of its contributors may be used to endorse or *
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22 * promote products derived from this software without *
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23 * specific prior written permission of WIDE Project and *
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24 * NICT. *
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25 * *
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26 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND ANY EXPRESS OR IMPLIED *
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27 * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A *
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28 * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR *
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29 * ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT *
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30 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS *
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31 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR *
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32 * TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF *
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33 * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. *
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34 *********************************************************************************************************/
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35
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36 #ifndef _EXTENSION_H
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37 #define _EXTENSION_H
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38
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39 #ifdef __cplusplus
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40 extern "C" {
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41 #endif
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42
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43 /* Include definition of freeDiameter API */
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44 #include <freeDiameter/freeDiameter-host.h>
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45 #include <freeDiameter/libfdcore.h>
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46
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47 /* Macro that define the entry point of the extension */
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48 #define EXTENSION_ENTRY(_name, _function, _depends...) \
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49 const char *fd_ext_depends[] = { _name , ## _depends , NULL }; \
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50 static int extension_loaded = 0; \
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51 int fd_ext_init(int major, int minor, char * conffile) { \
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52 if ((major != FD_PROJECT_VERSION_MAJOR) \
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53 || (minor != FD_PROJECT_VERSION_MINOR)) { \
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54 TRACE_ERROR("This extension (" _name ") was compiled for a different version of freeDiameter."); \
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55 TRACE_DEBUG(INFO, "daemon %d.%d != ext %d.%d", \
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56 major, minor, \
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57 FD_PROJECT_VERSION_MAJOR, FD_PROJECT_VERSION_MINOR); \
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58 return EINVAL; \
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59 } \
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60 if (extension_loaded) { \
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61 TRACE_ERROR("Extension (" _name ") cannot be loaded twice!"); \
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62 return ENOTSUP; \
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63 } \
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64 extension_loaded++; \
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65 return (_function)(conffile); \
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66 }
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67
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68 #ifdef __cplusplus
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69 }
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70 #endif
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71
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72 #endif /* _EXTENSION_H */
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