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annotate dyncallback/dyncall_callback.h @ 542:a73a5cd50c19

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- fix passing aggregate-by-val on x64/sysv: subaggr classification for aggr *arrays* was wrong (was problematic when there ware exactly 2 8bytes to be classified, potentially be passed via registers)
author Tassilo Philipp
date Mon, 02 May 2022 15:32:41 +0200
parents d717a5561335
children
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1 /*
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2
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3 Package: dyncall
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4 Library: dyncallback
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5 File: dyncallback/dyncall_callback.h
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6 Description: Callback - Interface
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7 License:
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8
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9 Copyright (c) 2007-2022 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 #ifndef DYNCALL_CALLBACK_H
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27 #define DYNCALL_CALLBACK_H
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28
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29 #include "dyncall_args.h"
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30 #include "dyncall_signature.h"
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31 #include "dyncall_value.h"
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32
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33 typedef struct DCCallback DCCallback;
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34
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35 /* callback handler:
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36 - handlers return value signature char (see dyncall_signature.h) of callback's return value type
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37 - callback return value is written to the corresponding type's field of result
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38 - if callback return value is an aggregate (by value), use dcbReturnAggr() as a helper to write to result
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39 */
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40 typedef DCsigchar (DCCallbackHandler)(DCCallback* pcb, DCArgs* args, DCValue* result, void* userdata);
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41
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42 #ifdef __cplusplus
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43 extern "C" {
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44 #endif
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45
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46 DCCallback* dcbNewCallback (const DCsigchar* signature, DCCallbackHandler* funcptr, void* userdata);
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47 DCCallback* dcbNewCallback2 (const DCsigchar* signature, DCCallbackHandler* funcptr, void* userdata, DCaggr *const * aggrs);
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48 void dcbInitCallback (DCCallback* pcb, const DCsigchar* signature, DCCallbackHandler* handler, void* userdata);
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49 void dcbInitCallback2(DCCallback* pcb, const DCsigchar* signature, DCCallbackHandler* handler, void* userdata, DCaggr *const * aggrs);
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50 void dcbFreeCallback (DCCallback* pcb);
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51 void* dcbGetUserData (DCCallback* pcb);
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52
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53 #ifdef __cplusplus
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54 }
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55 #endif
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56
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57 #endif /* DYNCALL_CALLBACK_H */
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