1.1 --- a/epoc32/include/stdapis/glib-2.0/glowmem.h Tue Nov 24 13:55:44 2009 +0000
1.2 +++ b/epoc32/include/stdapis/glib-2.0/glowmem.h Tue Mar 16 16:12:26 2010 +0000
1.3 @@ -1,1 +1,144 @@
1.4 -glowmem.h
1.5 +/*
1.6 +* Copyright (c) 2009 Nokia Corporation and/or its subsidiary(-ies). All rights reserved.
1.7 +
1.8 +* Redistribution and use in source and binary forms, with or without
1.9 +* modification, are permitted provided that the following conditions are met:
1.10 +
1.11 +* Redistributions of source code must retain the above copyright notice, this
1.12 +* list of conditions and the following disclaimer.
1.13 +* Redistributions in binary form must reproduce the above copyright notice,
1.14 +* this list of conditions and the following disclaimer in the documentation
1.15 +* and/or other materials provided with the distribution.
1.16 +* Neither the name of Nokia Corporation nor the names of its contributors
1.17 +* may be used to endorse or promote products derived from this software
1.18 +* without specific prior written permission.
1.19 +
1.20 +* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
1.21 +* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
1.22 +* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
1.23 +* DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT HOLDER OR CONTRIBUTORS BE LIABLE
1.24 +* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
1.25 +* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR
1.26 +* SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER
1.27 +* CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
1.28 +* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
1.29 +* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
1.30 +*
1.31 +* Description:
1.32 +*
1.33 +*/
1.34 +
1.35 +#ifndef __G_LOW_MEM_H__
1.36 +#define __G_LOW_MEM_H__
1.37 +
1.38 +#include <unistd.h>
1.39 +#include <setjmp.h>
1.40 +
1.41 +/*-------------------------- Data Structure Decleration ----------------*/
1.42 +typedef struct _cleanUpStack cleanUpStack ;
1.43 +typedef struct _mem_info mem_info ;
1.44 +
1.45 +struct _cleanUpStack
1.46 +{
1.47 + void *ptr[1000];
1.48 + int top;
1.49 +};
1.50 +
1.51 +struct _mem_info
1.52 +{
1.53 + int is_setjmp_called;
1.54 + jmp_buf buf;
1.55 + cleanUpStack stack;
1.56 +};
1.57 +
1.58 +
1.59 +/*--------------------Function declerations------------------*/
1.60 +#ifdef __cplusplus
1.61 +extern "C"
1.62 +{
1.63 +#endif /* __cplusplus */
1.64 +
1.65 +IMPORT_C mem_info * _get_thread_specific_data();
1.66 +IMPORT_C int _set_thread_specific_data(mem_info *m);
1.67 +IMPORT_C int _push(cleanUpStack *cs,void *ptr);
1.68 +IMPORT_C void *_pop(cleanUpStack *cs);
1.69 +IMPORT_C void _findAndDestroy(cleanUpStack *cs,void *ptr);
1.70 +IMPORT_C void _destroCleanUpStack(cleanUpStack *cs);
1.71 +IMPORT_C void _clearCleanUpStack(cleanUpStack *cs);
1.72 +IMPORT_C void * _pAlloc(size_t size);
1.73 +IMPORT_C void _dummy1();
1.74 +IMPORT_C void _dummy2();
1.75 +IMPORT_C void _dummy3();
1.76 +
1.77 +#ifdef __cplusplus
1.78 +}
1.79 +#endif /* __cplusplus */
1.80 +
1.81 +/*--------------------MACRO declerations------------------*/
1.82 +
1.83 +#define SET_LOW_MEMORY_TRAP_VOID() \
1.84 +gboolean did_i_set = FALSE;\
1.85 +{\
1.86 + mem_info *m = _get_thread_specific_data();\
1.87 + if(m == NULL)\
1.88 + {\
1.89 + m = (mem_info *)_pAlloc(sizeof(mem_info));\
1.90 + if(!m)\
1.91 + return;\
1.92 + m->is_setjmp_called = FALSE;\
1.93 + _clearCleanUpStack(&(m->stack));\
1.94 + if(_set_thread_specific_data(m))\
1.95 + return;\
1.96 + }\
1.97 + if(!m->is_setjmp_called)\
1.98 + {\
1.99 + if(setjmp(m->buf) > 0)\
1.100 + {\
1.101 + m->is_setjmp_called = FALSE;\
1.102 + _destroCleanUpStack(&(m->stack));\
1.103 + return ;\
1.104 + }\
1.105 + m->is_setjmp_called = TRUE;\
1.106 + did_i_set = TRUE;\
1.107 + }\
1.108 +}
1.109 +
1.110 +#define SET_LOW_MEMORY_TRAP(failure_value) \
1.111 +gboolean did_i_set = FALSE;\
1.112 +{\
1.113 + mem_info *m = _get_thread_specific_data();\
1.114 + if(m == NULL)\
1.115 + {\
1.116 + m = (mem_info *)_pAlloc(sizeof(mem_info));\
1.117 + if(!m)\
1.118 + return failure_value;\
1.119 + m->is_setjmp_called = FALSE;\
1.120 + _clearCleanUpStack(&(m->stack));\
1.121 + if(_set_thread_specific_data(m))\
1.122 + return failure_value;\
1.123 + }\
1.124 + if(!m->is_setjmp_called)\
1.125 + {\
1.126 + if(setjmp(m->buf) > 0)\
1.127 + {\
1.128 + m->is_setjmp_called = FALSE;\
1.129 + _destroCleanUpStack(&(m->stack));\
1.130 + return failure_value;\
1.131 + }\
1.132 + m->is_setjmp_called = TRUE;\
1.133 + did_i_set = TRUE;\
1.134 + }\
1.135 +}
1.136 +
1.137 +
1.138 +#define REMOVE_LOW_MEMORY_TRAP() {\
1.139 +if(did_i_set)\
1.140 + {\
1.141 + mem_info *m = _get_thread_specific_data();\
1.142 + if(m)\
1.143 + m->is_setjmp_called = FALSE;\
1.144 + _clearCleanUpStack(&(m->stack));\
1.145 + }\
1.146 +}
1.147 +
1.148 +#endif /* __G_LOW_MEM_H__ */
1.149 \ No newline at end of file