Mercurial > nand-ecoscentric
annotate packages/kernel/current/include/thread.inl @ 2613:e19a7a6154d0
* include/thread.inl: Silence some warnings by assigning
string literals to const char *, not char *.
| author | jlarmour |
|---|---|
| date | Tue, 11 Nov 2008 04:31:57 +0000 |
| parents | 57cebf53b527 |
| children | 74dbf4c3f2e1 |
| rev | line source |
|---|---|
| 0 | 1 #ifndef CYGONCE_KERNEL_THREAD_INL |
| 2 #define CYGONCE_KERNEL_THREAD_INL | |
| 3 | |
| 4 //========================================================================== | |
| 5 // | |
| 2 | 6 // thread.inl |
| 0 | 7 // |
| 2 | 8 // Thread class inlines |
| 0 | 9 // |
| 10 //========================================================================== | |
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11 //####ECOSGPLCOPYRIGHTBEGIN#### |
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12 // ------------------------------------------- |
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13 // This file is part of eCos, the Embedded Configurable Operating System. |
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14 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc. |
| 585 | 15 // Copyright (C) 2003 Gary Thomas |
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16 // Copyright (C) 2008 eCosCentric Limited |
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17 // |
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18 // eCos is free software; you can redistribute it and/or modify it under |
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19 // the terms of the GNU General Public License as published by the Free |
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20 // Software Foundation; either version 2 or (at your option) any later version. |
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21 // |
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22 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY |
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23 // WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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24 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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25 // for more details. |
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26 // |
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27 // You should have received a copy of the GNU General Public License along |
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28 // with eCos; if not, write to the Free Software Foundation, Inc., |
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29 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. |
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30 // |
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31 // As a special exception, if other files instantiate templates or use macros |
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32 // or inline functions from this file, or you compile this file and link it |
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33 // with other works to produce a work based on this file, this file does not |
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34 // by itself cause the resulting work to be covered by the GNU General Public |
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35 // License. However the source code for this file must still be made available |
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36 // in accordance with section (3) of the GNU General Public License. |
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37 // |
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38 // This exception does not invalidate any other reasons why a work based on |
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39 // this file might be covered by the GNU General Public License. |
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40 // |
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41 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc. |
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42 // at http://sources.redhat.com/ecos/ecos-license/ |
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43 // ------------------------------------------- |
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44 //####ECOSGPLCOPYRIGHTEND#### |
| 0 | 45 //========================================================================== |
| 46 //#####DESCRIPTIONBEGIN#### | |
| 47 // | |
| 2 | 48 // Author(s): nickg |
| 49 // Contributors: nickg | |
| 50 // Date: 1997-09-09 | |
| 51 // Purpose: Define inlines for thread classes | |
| 52 // Description: Inline implementations of various member functions defined | |
| 0 | 53 // in various Thread classes. |
| 54 // Usage: | |
| 55 // #include <cyg/kernel/thread.hxx> | |
| 56 // ... | |
| 2 | 57 // #include <cyg/kernel/thread.inl> |
| 58 // ... | |
| 0 | 59 |
| 60 // | |
| 61 //####DESCRIPTIONEND#### | |
| 62 // | |
| 63 //========================================================================== | |
| 64 | |
| 65 #include <cyg/kernel/thread.hxx> | |
| 66 #include <cyg/hal/hal_arch.h> | |
| 67 | |
| 68 #include <cyg/kernel/clock.inl> | |
| 585 | 69 #include <cyg/infra/diag.h> |
| 0 | 70 |
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71 #ifndef CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE |
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72 #define CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE (0) |
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73 #endif |
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74 |
| 0 | 75 //========================================================================== |
| 76 // Inlines for Cyg_HardwareThread | |
| 77 | |
| 78 // ------------------------------------------------------------------------- | |
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79 // get the size/base of this thread's stack |
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80 |
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81 inline CYG_ADDRESS |
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82 Cyg_HardwareThread::get_stack_base() |
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83 { |
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84 return stack_base - CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE; |
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85 } |
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86 |
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87 inline cyg_uint32 |
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88 Cyg_HardwareThread::get_stack_size() |
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89 { |
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90 return stack_size + 2 * CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE; |
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91 } |
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92 |
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93 // ------------------------------------------------------------------------- |
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94 // Check the stack bounds of this thread: |
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95 #ifdef CYGFUN_KERNEL_THREADS_STACK_CHECKING |
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96 inline void Cyg_HardwareThread::check_stack(void) |
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97 { |
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98 cyg_uint32 sig = (cyg_uint32)this; |
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99 cyg_uint32 *base = (cyg_uint32 *)get_stack_base(); |
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100 cyg_uint32 *top = (cyg_uint32 *)(stack_base + stack_size); |
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101 cyg_ucount32 i; |
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102 |
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103 CYG_INSTRUMENT_THREAD(CHECK_STACK, base, top ); |
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104 |
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105 CYG_ASSERT( 0 == ((sizeof(CYG_WORD)-1) & (cyg_uint32)base), "stack base not word aligned" ); |
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106 CYG_ASSERT( 0 == ((sizeof(CYG_WORD)-1) & (cyg_uint32)top), "stack top not word aligned" ); |
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107 |
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108 CYG_ASSERT( (cyg_uint32)stack_ptr > (cyg_uint32)stack_base, |
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109 "Stack_ptr below base" ); |
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110 CYG_ASSERT( (cyg_uint32)stack_ptr <= ((cyg_uint32)stack_base + stack_size), |
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111 "Stack_ptr above top" ); |
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112 |
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113 for ( i = 0; |
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114 i < CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE/sizeof(cyg_uint32); |
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115 i++ ) { |
| 585 | 116 if ((sig ^ (i * 0x01010101)) != base[i]) { |
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117 const char *reason = "Stack base corrupt"; |
| 585 | 118 diag_printf("%s - i: %d\n", reason, i); |
| 119 diag_dump_buf(base, CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE); | |
| 120 CYG_FAIL(reason); | |
| 121 } | |
| 122 if ((sig ^ (i * 0x10101010)) != top[i]) { | |
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123 const char *reason = "Stack top corrupt"; |
| 585 | 124 diag_printf("%s - i: %d\n", reason, i); |
| 125 diag_dump_buf(top, CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE); | |
| 126 CYG_FAIL(reason); | |
| 127 } | |
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128 } |
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129 |
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130 #ifdef CYGFUN_KERNEL_THREADS_STACK_LIMIT |
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131 // we won't have added check data above the stack limit if it hasn't |
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132 // been incremented |
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133 if (stack_limit != stack_base) { |
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134 CYG_ADDRESS limit = stack_limit; |
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135 // the limit will be off by the check data size, so lets correct it |
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136 limit -= CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE; |
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137 |
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138 // determine base of check data by rounding up to nearest word aligned |
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139 // address if not already aligned |
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140 cyg_uint32 *p = (cyg_uint32 *)((limit + 3) & ~3); |
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141 // i.e. + sizeof(cyg_uint32)-1) & ~(sizeof(cyg_uint32)-1); |
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142 |
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143 for ( i = 0; |
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144 i < CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE/sizeof(cyg_uint32); |
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145 i++ ) { |
| 585 | 146 if ((sig ^ (i * 0x01010101)) != p[i]) { |
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147 const char *reason = "Gap between stack limit and base corrupt"; |
| 585 | 148 diag_printf("%s - i: %d\n", reason, i); |
| 149 diag_dump_buf(p, CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE); | |
| 150 CYG_FAIL(reason); | |
| 151 } | |
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152 } |
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153 } |
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154 #endif |
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155 } |
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156 #endif |
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157 |
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158 // ------------------------------------------------------------------------- |
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159 // Measure the stack usage of the thread |
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160 #ifdef CYGFUN_KERNEL_THREADS_STACK_MEASUREMENT |
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161 inline cyg_uint32 Cyg_HardwareThread::measure_stack_usage(void) |
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162 { |
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163 #ifdef CYGFUN_KERNEL_THREADS_STACK_LIMIT |
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164 CYG_WORD *base = (CYG_WORD *)stack_limit; |
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165 cyg_uint32 size = (stack_size - (stack_limit-stack_base))/sizeof(CYG_WORD); |
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166 #else |
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167 CYG_WORD *base = (CYG_WORD *)stack_base; |
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168 cyg_uint32 size = stack_size/sizeof(CYG_WORD); |
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169 #endif |
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170 cyg_ucount32 i; |
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171 |
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172 // Work up the stack comparing with the preset value |
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173 // We assume the stack grows downwards, hmm... |
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174 for (i=0; i<size; i++) { |
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175 if (base[i] != 0xDEADBEEF) |
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176 break; |
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177 } |
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178 return (size - i)*sizeof(CYG_WORD); |
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179 } |
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180 #endif |
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181 |
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182 // ------------------------------------------------------------------------- |
| 0 | 183 // Attach a stack to this thread. If there is a HAL defined macro to |
| 184 // do this, then we use that, otherwise assume a falling stack. | |
| 185 inline void Cyg_HardwareThread::attach_stack(CYG_ADDRESS s_base, cyg_uint32 s_size) | |
| 186 { | |
| 2 | 187 #ifdef CYGNUM_HAL_STACK_SIZE_MINIMUM |
| 188 CYG_ASSERT( s_size >= CYGNUM_HAL_STACK_SIZE_MINIMUM, | |
| 189 "Stack size too small"); | |
| 190 #endif | |
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191 |
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192 #ifdef CYGFUN_KERNEL_THREADS_STACK_CHECKING |
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193 { |
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194 cyg_uint32 sig = (cyg_uint32)this; |
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195 cyg_uint32 *base = (cyg_uint32 *)s_base; |
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196 cyg_uint32 *top = (cyg_uint32 *)(s_base + s_size - |
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197 CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE); |
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198 |
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199 unsigned int i; |
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200 |
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201 CYG_INSTRUMENT_THREAD(ATTACH_STACK, base, top ); |
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202 |
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203 CYG_ASSERT( NULL != base, "stack base non-NULL" ); |
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204 CYG_ASSERT( 0 == ((sizeof(CYG_WORD)-1) & (cyg_uint32)base), "stack base alignment" ); |
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205 CYG_ASSERT( 0 == ((sizeof(CYG_WORD)-1) & (cyg_uint32)top), "stack top alignment" ); |
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206 |
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207 for ( i = 0; |
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208 i < CYGNUM_KERNEL_THREADS_STACK_CHECK_DATA_SIZE/sizeof(cyg_uint32); |
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209 i++ ) { |
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210 base[i] = (sig ^ (i * 0x01010101)); |
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211 top[i] = (sig ^ (i * 0x10101010)); |
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212 } |
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213 // This check for overlap of the two signature areas also detects |
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214 // wrap round zero of the size in the unsigned subtraction below. |
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215 CYG_ASSERT( &base[i] < &top[0], "Stack is so small size wrapped" ); |
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216 // Use this 'i' expression to round correctly to whole words. |
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217 s_base += i * sizeof(cyg_uint32); |
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218 s_size -= i * sizeof(cyg_uint32) * 2; |
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219 // This is a complete guess, the 256; the point is to assert early that |
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220 // this might go badly wrong. It would not detect wrap of unsigned size. |
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221 CYG_ASSERT( s_size >= 256, |
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222 "Stack size too small after allocating checking buffer"); |
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223 } |
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224 #endif |
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225 #ifdef CYGFUN_KERNEL_THREADS_STACK_MEASUREMENT |
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226 { |
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227 CYG_WORD *base = (CYG_WORD *)s_base; |
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228 cyg_uint32 size = s_size/sizeof(CYG_WORD); |
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229 cyg_ucount32 i; |
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230 |
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231 // initialize all of stack with known value - don't choose 0 |
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232 // could do with pseudo value as above, but this way, checking |
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233 // is faster |
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234 for (i=0; i<size; i++) { |
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235 base[i] = 0xDEADBEEF; |
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236 } |
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237 // Don't bother about the case when the stack isn't a multiple of |
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238 // CYG_WORD in size. Since it's at the top of the stack, it will |
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239 // almost certainly be overwritten the instant the thread starts |
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240 // anyway. |
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241 } |
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242 #endif |
| 0 | 243 stack_base = s_base; |
| 244 stack_size = s_size; | |
| 245 #ifdef CYGFUN_KERNEL_THREADS_STACK_LIMIT | |
| 246 stack_limit = s_base; | |
| 247 #endif | |
| 248 | |
| 249 #ifdef HAL_THREAD_ATTACH_STACK | |
| 250 | |
| 251 HAL_THREAD_ATTACH_STACK(stack_ptr, stack_base, stack_size); | |
| 252 | |
| 253 #else | |
| 254 | |
| 255 stack_ptr = stack_base + stack_size; | |
| 256 | |
| 257 #endif | |
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258 |
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259 #ifdef CYGFUN_KERNEL_THREADS_STACK_CHECKING |
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260 check_stack(); |
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261 #endif |
| 0 | 262 } |
| 263 | |
| 264 // ------------------------------------------------------------------------- | |
| 265 | |
| 266 inline Cyg_HardwareThread::Cyg_HardwareThread( | |
| 267 cyg_thread_entry *e_point, // entry point function | |
| 268 CYG_ADDRWORD e_data, // entry data | |
| 269 cyg_ucount32 s_size, // stack size, 0 = use default | |
| 270 CYG_ADDRESS s_base // stack base, NULL = allocate | |
| 271 ) | |
| 272 { | |
| 273 entry_point = e_point; | |
| 274 entry_data = e_data; | |
| 275 #ifdef CYGDBG_KERNEL_DEBUG_GDB_THREAD_SUPPORT | |
| 276 saved_context = 0; | |
| 277 #endif | |
| 278 | |
| 279 attach_stack( s_base, s_size ); | |
| 280 }; | |
| 281 | |
| 282 // ------------------------------------------------------------------------- | |
| 283 | |
| 284 #ifdef CYGDBG_KERNEL_DEBUG_GDB_THREAD_SUPPORT | |
| 285 | |
| 286 // Return the current saved state for this thread. | |
| 287 inline HAL_SavedRegisters *Cyg_HardwareThread::get_saved_context() | |
| 288 { | |
| 289 HAL_SavedRegisters *regs; | |
| 290 if( saved_context != 0 ) regs = saved_context; | |
| 291 else HAL_THREAD_GET_SAVED_REGISTERS( stack_ptr, regs ); | |
| 292 return regs; | |
| 293 } | |
| 294 | |
| 295 inline void Cyg_HardwareThread::set_saved_context(HAL_SavedRegisters *ctx) | |
| 296 { | |
| 297 saved_context = ctx; | |
| 298 } | |
| 299 | |
| 300 #endif | |
| 301 | |
| 302 // ------------------------------------------------------------------------- | |
| 303 // (declare this inline before its first use) | |
| 304 | |
| 305 inline cyg_uint16 Cyg_Thread::get_unique_id() | |
| 306 { | |
| 307 return unique_id; | |
| 308 } | |
| 309 | |
| 310 // ------------------------------------------------------------------------- | |
| 311 // Initialize the context of this thread. | |
| 312 | |
| 313 inline void Cyg_HardwareThread::init_context(Cyg_Thread *thread) | |
| 314 { | |
| 315 #ifdef CYGPKG_INFRA_DEBUG | |
| 316 cyg_uint32 threadid = thread->get_unique_id()*0x01010000; | |
| 317 #else | |
| 318 cyg_uint32 threadid = 0x11110000; | |
| 319 #endif | |
| 320 HAL_THREAD_INIT_CONTEXT( stack_ptr, thread, thread_entry, threadid ); | |
| 321 } | |
| 322 | |
| 323 | |
| 324 | |
| 325 // ------------------------------------------------------------------------- | |
| 326 // Save current thread's context and load that of the given next thread. | |
| 327 // This function is only really here for completeness, the | |
| 328 // kernel generally calls the HAL macros directly. | |
| 329 | |
| 330 inline void Cyg_HardwareThread::switch_context(Cyg_HardwareThread *next) | |
| 331 { | |
| 332 HAL_THREAD_SWITCH_CONTEXT( &stack_ptr, &next->stack_ptr ); | |
| 333 } | |
| 334 | |
| 335 // ------------------------------------------------------------------------- | |
| 336 // Get and set entry_data. | |
| 337 | |
| 338 inline void Cyg_HardwareThread::set_entry_data( CYG_ADDRWORD data ) | |
| 339 { | |
| 340 entry_data = data; | |
| 341 } | |
| 342 | |
| 343 inline CYG_ADDRWORD Cyg_HardwareThread::get_entry_data() | |
| 344 { | |
| 345 return entry_data; | |
| 346 } | |
| 347 | |
| 348 // ------------------------------------------------------------------------- | |
| 349 // Allocate some memory at the lower end of the stack | |
| 350 // by moving the stack limit pointer. | |
| 351 | |
| 352 #ifdef CYGFUN_KERNEL_THREADS_STACK_LIMIT | |
| 353 | |
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354 #ifndef CYGFUN_KERNEL_THREADS_STACK_CHECKING |
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355 // if stack checking, implementation is in thread.cxx |
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356 inline void *Cyg_HardwareThread::increment_stack_limit( cyg_ucount32 size ) |
| 0 | 357 { |
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358 void *ret = (void *)stack_limit; |
| 0 | 359 stack_limit += size; |
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360 return ret; |
| 0 | 361 } |
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362 #endif |
| 0 | 363 |
| 364 inline CYG_ADDRESS | |
| 365 Cyg_HardwareThread::get_stack_limit() | |
| 366 { | |
| 367 return stack_limit; | |
| 368 } | |
| 369 | |
| 370 #endif | |
| 371 | |
| 372 //========================================================================== | |
| 373 // Inlines for Cyg_Thread class | |
| 374 | |
| 375 inline Cyg_Thread *Cyg_Thread::self() | |
| 376 { | |
| 377 return Cyg_Scheduler::get_current_thread(); | |
| 378 } | |
| 379 | |
| 380 // ------------------------------------------------------------------------- | |
| 381 | |
| 382 inline void Cyg_Thread::yield() | |
| 383 { | |
| 384 self()->Cyg_SchedThread::yield(); | |
| 385 } | |
| 386 | |
| 387 // ------------------------------------------------------------------------- | |
| 388 | |
| 389 inline void | |
| 390 Cyg_Thread::rotate_queue( cyg_priority pri ) | |
| 391 { | |
| 392 self()->Cyg_SchedThread::rotate_queue( pri ); | |
| 393 } | |
| 2 | 394 |
| 395 // ------------------------------------------------------------------------- | |
| 396 | |
| 397 inline void | |
| 398 Cyg_Thread::to_queue_head( void ) | |
| 399 { | |
| 400 this->Cyg_SchedThread::to_queue_head(); | |
| 401 } | |
| 0 | 402 |
| 403 // ------------------------------------------------------------------------- | |
| 404 | |
| 405 #ifdef CYGIMP_THREAD_PRIORITY | |
| 406 | |
| 407 inline cyg_priority Cyg_Thread::get_priority() | |
| 408 { | |
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409 #ifdef CYGSEM_KERNEL_SYNCH_MUTEX_PRIORITY_INVERSION_PROTOCOL_SIMPLE |
| 0 | 410 |
| 411 // If we have an inherited priority, return our original | |
| 412 // priority rather than the current one. | |
| 413 | |
| 414 if( priority_inherited ) return original_priority; | |
| 415 | |
| 416 #endif | |
| 417 | |
| 418 return priority; | |
| 419 } | |
| 420 | |
| 421 // Return the actual dispatching priority of the thread | |
| 422 // regardless of inheritance or scheduling concerns. | |
| 423 inline cyg_priority Cyg_Thread::get_current_priority() | |
| 424 { | |
| 425 return priority; | |
| 426 } | |
| 427 | |
| 428 #endif | |
| 429 | |
| 430 // ------------------------------------------------------------------------- | |
| 431 | |
| 432 inline void Cyg_Thread::set_sleep_reason( cyg_reason reason) | |
| 433 { | |
| 434 self()->sleep_reason = reason; | |
| 435 self()->wake_reason = NONE; | |
| 436 } | |
| 437 | |
| 438 // ------------------------------------------------------------------------- | |
| 439 | |
| 440 inline Cyg_Thread::cyg_reason Cyg_Thread::get_sleep_reason() | |
| 441 { | |
| 442 return sleep_reason; | |
| 443 } | |
| 444 | |
| 445 // ------------------------------------------------------------------------- | |
| 446 | |
| 447 inline void Cyg_Thread::set_wake_reason( cyg_reason reason ) | |
| 448 { | |
| 449 sleep_reason = NONE; | |
| 450 wake_reason = reason; | |
| 451 } | |
| 452 | |
| 453 // ------------------------------------------------------------------------- | |
| 454 | |
| 455 inline Cyg_Thread::cyg_reason Cyg_Thread::get_wake_reason() | |
| 456 { | |
| 457 return wake_reason; | |
| 458 } | |
| 459 | |
| 460 // ------------------------------------------------------------------------- | |
| 461 | |
| 462 inline void Cyg_Thread::set_timer( | |
| 463 cyg_tick_count trigger, | |
| 464 cyg_reason reason | |
| 465 ) | |
| 466 { | |
| 467 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 468 self()->sleep_reason = reason; | |
| 469 self()->wake_reason = NONE; | |
| 470 self()->timer.initialize( trigger); | |
| 471 #endif | |
| 472 } | |
| 473 | |
| 474 // ------------------------------------------------------------------------- | |
| 475 | |
| 476 inline void Cyg_Thread::clear_timer() | |
| 477 { | |
| 478 #ifdef CYGFUN_KERNEL_THREADS_TIMER | |
| 479 self()->timer.disable(); | |
| 480 #endif | |
| 481 } | |
| 482 | |
| 483 // ------------------------------------------------------------------------- | |
| 484 | |
| 485 #ifdef CYGVAR_KERNEL_THREADS_DATA | |
| 486 | |
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487 inline CYG_ADDRWORD Cyg_Thread::get_data( Cyg_Thread::cyg_data_index index ) |
| 0 | 488 { |
| 489 CYG_ASSERT( index < CYGNUM_KERNEL_THREADS_DATA_MAX, | |
| 490 "Per thread data index out of bounds"); | |
| 491 CYG_ASSERT( (thread_data_map & (1<<index)) == 0, | |
| 492 "Unallocated index used"); | |
| 493 | |
| 494 return self()->thread_data[index]; | |
| 495 } | |
| 496 | |
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497 inline CYG_ADDRWORD *Cyg_Thread::get_data_ptr( Cyg_Thread::cyg_data_index index ) |
| 0 | 498 { |
| 499 CYG_ASSERT( index < CYGNUM_KERNEL_THREADS_DATA_MAX, | |
| 500 "Per thread data index out of bounds"); | |
| 501 CYG_ASSERT( (thread_data_map & (1<<index)) == 0, | |
| 502 "Unallocated index used"); | |
| 503 | |
| 504 return &(self()->thread_data[index]); | |
| 505 } | |
| 506 | |
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507 inline void Cyg_Thread::set_data( Cyg_Thread::cyg_data_index index, |
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508 CYG_ADDRWORD data ) |
| 0 | 509 { |
| 510 CYG_ASSERT( index < CYGNUM_KERNEL_THREADS_DATA_MAX, | |
| 511 "Per thread data index out of bounds"); | |
| 512 CYG_ASSERT( (thread_data_map & (1<<index)) == 0, | |
| 513 "Unallocated index used"); | |
| 514 | |
| 515 thread_data[index] = data; | |
| 516 } | |
| 517 | |
| 518 #endif | |
| 519 | |
| 520 // ------------------------------------------------------------------------- | |
| 521 | |
| 522 #ifdef CYGVAR_KERNEL_THREADS_NAME | |
| 523 | |
| 524 inline char *Cyg_Thread::get_name() | |
| 525 { | |
| 526 return name; | |
| 527 } | |
| 528 | |
| 529 #endif | |
| 530 | |
| 531 // ------------------------------------------------------------------------- | |
| 532 | |
| 533 #ifdef CYGVAR_KERNEL_THREADS_LIST | |
| 534 | |
| 535 inline Cyg_Thread *Cyg_Thread::get_list_head() | |
| 536 { | |
| 537 return thread_list?thread_list->list_next:0; | |
| 538 } | |
| 539 | |
| 540 inline Cyg_Thread *Cyg_Thread::get_list_next() | |
| 541 { | |
| 542 return (this==thread_list)?0:list_next; | |
| 543 } | |
| 544 | |
| 545 #endif | |
| 546 | |
| 547 | |
| 548 // ------------------------------------------------------------------------- | |
| 549 | |
| 550 #ifdef CYGPKG_KERNEL_EXCEPTIONS | |
| 551 | |
| 552 inline void Cyg_Thread::register_exception( | |
| 553 cyg_code exception_number, // exception number | |
| 554 cyg_exception_handler handler, // handler function | |
| 555 CYG_ADDRWORD data, // data argument | |
| 556 cyg_exception_handler **old_handler, // handler function | |
| 557 CYG_ADDRWORD *old_data // data argument | |
| 558 ) | |
| 559 { | |
| 560 self()->exception_control.register_exception( | |
| 561 exception_number, | |
| 562 handler, | |
| 563 data, | |
| 564 old_handler, | |
| 565 old_data | |
| 566 ); | |
| 567 } | |
| 568 | |
| 569 inline void Cyg_Thread::deregister_exception( | |
| 570 cyg_code exception_number // exception number | |
| 571 ) | |
| 572 { | |
| 573 self()->exception_control.deregister_exception( | |
| 574 exception_number | |
| 575 ); | |
| 576 } | |
| 577 | |
| 578 #endif | |
| 579 | |
| 580 //========================================================================== | |
| 581 // Inlines for Cyg_ThreadTimer class | |
| 582 | |
| 583 // ------------------------------------------------------------------------- | |
| 584 #if defined(CYGFUN_KERNEL_THREADS_TIMER) && defined(CYGVAR_KERNEL_COUNTERS_CLOCK) | |
| 585 | |
| 586 inline Cyg_ThreadTimer::Cyg_ThreadTimer( | |
| 587 Cyg_Thread *th | |
| 588 ) | |
| 589 : Cyg_Alarm(Cyg_Clock::real_time_clock, | |
| 590 &alarm, | |
| 591 CYG_ADDRWORD(this) | |
| 592 ) | |
| 593 { | |
| 594 thread = th; | |
| 595 } | |
| 596 | |
| 597 #endif | |
| 598 | |
| 599 //========================================================================== | |
| 600 // Inlines for Cyg_ThreadQueue class | |
| 601 | |
| 602 | |
| 603 inline void Cyg_ThreadQueue::enqueue(Cyg_Thread *thread) | |
| 604 { | |
| 605 Cyg_ThreadQueue_Implementation::enqueue(thread); | |
| 606 } | |
| 607 | |
| 608 // ------------------------------------------------------------------------- | |
| 609 | |
| 610 inline Cyg_Thread *Cyg_ThreadQueue::highpri() | |
| 611 { | |
| 612 return Cyg_ThreadQueue_Implementation::highpri(); | |
| 613 } | |
| 614 | |
| 615 // ------------------------------------------------------------------------- | |
| 616 | |
| 617 inline Cyg_Thread *Cyg_ThreadQueue::dequeue() | |
| 618 { | |
| 619 return Cyg_ThreadQueue_Implementation::dequeue(); | |
| 620 } | |
| 621 | |
| 622 // ------------------------------------------------------------------------- | |
| 623 | |
| 624 inline void Cyg_ThreadQueue::remove(Cyg_Thread *thread) | |
| 625 { | |
| 626 Cyg_ThreadQueue_Implementation::remove(thread); | |
| 627 } | |
| 628 | |
| 629 // ------------------------------------------------------------------------- | |
| 630 | |
| 631 inline cyg_bool Cyg_ThreadQueue::empty() | |
| 632 { | |
| 633 return Cyg_ThreadQueue_Implementation::empty(); | |
| 634 } | |
| 635 | |
| 636 // ------------------------------------------------------------------------- | |
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637 |
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638 #ifdef CYGPKG_KERNEL_THREADS_DESTRUCTORS |
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639 |
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640 #ifndef CYGSEM_KERNEL_THREADS_DESTRUCTORS_PER_THREAD |
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641 # include <cyg/kernel/sched.inl> |
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642 #endif |
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643 |
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644 // Add and remove destructors. Returns true on success, false on failure. |
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645 inline cyg_bool |
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646 Cyg_Thread::add_destructor( destructor_fn fn, CYG_ADDRWORD data ) |
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647 { |
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648 cyg_ucount16 i; |
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649 #ifndef CYGSEM_KERNEL_THREADS_DESTRUCTORS_PER_THREAD |
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650 Cyg_Scheduler::lock(); |
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651 #endif |
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652 for (i=0; i<CYGNUM_KERNEL_THREADS_DESTRUCTORS; i++) { |
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653 if (NULL == destructors[i].fn) { |
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654 destructors[i].data = data; |
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655 destructors[i].fn = fn; |
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656 #ifndef CYGSEM_KERNEL_THREADS_DESTRUCTORS_PER_THREAD |
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657 Cyg_Scheduler::unlock(); |
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658 #endif |
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659 return true; |
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660 } |
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661 } |
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662 #ifndef CYGSEM_KERNEL_THREADS_DESTRUCTORS_PER_THREAD |
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663 Cyg_Scheduler::unlock(); |
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664 #endif |
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665 return false; |
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666 } |
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667 |
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668 inline cyg_bool |
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669 Cyg_Thread::rem_destructor( destructor_fn fn, CYG_ADDRWORD data ) |
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670 { |
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671 cyg_ucount16 i; |
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672 #ifndef CYGSEM_KERNEL_THREADS_DESTRUCTORS_PER_THREAD |
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673 Cyg_Scheduler::lock(); |
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674 #endif |
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675 for (i=0; i<CYGNUM_KERNEL_THREADS_DESTRUCTORS; i++) { |
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676 if (destructors[i].fn == fn && destructors[i].data == data) { |
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677 destructors[i].fn = NULL; |
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678 #ifndef CYGSEM_KERNEL_THREADS_DESTRUCTORS_PER_THREAD |
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679 Cyg_Scheduler::unlock(); |
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680 #endif |
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681 return true; |
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682 } |
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683 } |
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684 #ifndef CYGSEM_KERNEL_THREADS_DESTRUCTORS_PER_THREAD |
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685 Cyg_Scheduler::unlock(); |
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686 #endif |
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687 return false; |
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688 } |
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689 #endif |
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690 |
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691 // ------------------------------------------------------------------------- |
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692 |
| 0 | 693 #endif // ifndef CYGONCE_KERNEL_THREAD_INL |
| 694 // EOF thread.inl |