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openocd/src/helper/jim-eventloop.h

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  1. /* Jim - A small embeddable Tcl interpreter

  2.  *

  3.  * Copyright 2005 Salvatore Sanfilippo <antirez@invece.org>

  4.  * Copyright 2005 Clemens Hintze <c.hintze@gmx.net>

  5.  * Copyright 2005 patthoyts - Pat Thoyts <patthoyts@users.sf.net> 

  6.  * Copyright 2008 oharboe - Øyvind Harboe - oyvind.harboe@zylin.com

  7.  * Copyright 2008 Andrew Lunn <andrew@lunn.ch>

  8.  * Copyright 2008 Duane Ellis <openocd@duaneellis.com>

  9.  * Copyright 2008 Uwe Klein <uklein@klein-messgeraete.de>

  10.  * 

  11.  * The FreeBSD license

  12.  * 

  13.  * Redistribution and use in source and binary forms, with or without

  14.  * modification, are permitted provided that the following conditions

  15.  * are met:

  16.  * 

  17.  * 1. Redistributions of source code must retain the above copyright

  18.  *    notice, this list of conditions and the following disclaimer.

  19.  * 2. Redistributions in binary form must reproduce the above

  20.  *    copyright notice, this list of conditions and the following

  21.  *    disclaimer in the documentation and/or other materials

  22.  *    provided with the distribution.

  23.  * 

  24.  * THIS SOFTWARE IS PROVIDED BY THE JIM TCL PROJECT ``AS IS'' AND ANY

  25.  * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,

  26.  * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A

  27.  * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE

  28.  * JIM TCL PROJECT OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,

  29.  * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES

  30.  * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS

  31.  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)

  32.  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT,

  33.  * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)

  34.  * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF

  35.  * ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.

  36.  * 

  37.  * The views and conclusions contained in the software and documentation

  38.  * are those of the authors and should not be interpreted as representing

  39.  * official policies, either expressed or implied, of the Jim Tcl Project.

  40.  **/

  41. /* ------ USAGE -------

  42.  *

  43.  * In order to use this file from other extensions include it in every

  44.  * file where you need to call the eventloop API, also in the init

  45.  * function of your extension call Jim_ImportEventloopAPI(interp)

  46.  * after the Jim_InitExtension() call.

  47.  *

  48.  * See the UDP extension as example.

  49.  */

  50. 

  51. 

  52. #ifndef __JIM_EVENTLOOP_H__

  53. #define __JIM_EVENTLOOP_H__

  54. 

  55. typedef int Jim_FileProc(Jim_Interp *interp, void *clientData, int mask);

  56. typedef int Jim_SignalProc(Jim_Interp *interp, void *clientData, void *msg);

  57. typedef void Jim_TimeProc(Jim_Interp *interp, void *clientData);

  58. typedef void Jim_EventFinalizerProc(Jim_Interp *interp, void *clientData);

  59. 

  60. /* File event structure */

  61. #define JIM_EVENT_READABLE 1

  62. #define JIM_EVENT_WRITABLE 2

  63. #define JIM_EVENT_EXCEPTION 4

  64. #define JIM_EVENT_FEOF 8

  65. 

  66. #define JIM_API(x) x

  67. #define JIM_STATIC 

  68. 

  69. JIM_STATIC int Jim_EventLoopOnLoad(Jim_Interp *interp);

  70. 

  71. /* --- POSIX version of Jim_ProcessEvents, for now the only available --- */

  72. #define JIM_FILE_EVENTS 1

  73. #define JIM_TIME_EVENTS 2

  74. #define JIM_ALL_EVENTS (JIM_FILE_EVENTS|JIM_TIME_EVENTS)

  75. #define JIM_DONT_WAIT 4

  76. 

  77. JIM_STATIC void JIM_API(Jim_CreateFileHandler) (Jim_Interp *interp,

  78.         void *handle, int mask,

  79.         Jim_FileProc *proc, void *clientData,

  80.         Jim_EventFinalizerProc *finalizerProc);

  81. JIM_STATIC void JIM_API(Jim_DeleteFileHandler) (Jim_Interp *interp,

  82.         void *handle);

  83. JIM_STATIC jim_wide JIM_API(Jim_CreateTimeHandler) (Jim_Interp *interp,

  84.         jim_wide milliseconds,

  85.         Jim_TimeProc *proc, void *clientData,

  86.         Jim_EventFinalizerProc *finalizerProc);

  87. JIM_STATIC jim_wide JIM_API(Jim_DeleteTimeHandler) (Jim_Interp *interp, jim_wide id);

  88. JIM_STATIC int JIM_API(Jim_ProcessEvents) (Jim_Interp *interp, int flags);

  89. 

  90. #undef JIM_STATIC

  91. #undef JIM_API

  92. 

  93. #ifndef __JIM_EVENTLOOP_CORE__

  94. 

  95. #define JIM_GET_API(name) \

  96.     Jim_GetApi(interp, "Jim_" #name, ((void *)&Jim_ ## name))

  97. 

  98. #if defined(JIM_EXTENSION) || defined(JIM_EMBEDDED)

  99. /* This must be included "inline" inside the extension */

  100. static void Jim_ImportEventloopAPI(Jim_Interp *interp)

  101. {

  102.   JIM_GET_API(CreateFileHandler);

  103.   JIM_GET_API(DeleteFileHandler);

  104.   JIM_GET_API(CreateTimeHandler);

  105.   JIM_GET_API(DeleteTimeHandler);

  106.   JIM_GET_API(ProcessEvents);

  107. }

  108. #endif /* defined JIM_EXTENSION || defined JIM_EMBEDDED */

  109. #undef JIM_GET_API

  110. #endif /* __JIM_EVENTLOOP_CORE__ */

  111. 

  112. #endif /* __JIM_EVENTLOOP_H__ */