| 130 | } |
| 131 | |
| 132 | size_t Thread::get_stack_usage() |
| 133 | { |
| 134 | uint32_t *p; |
| 135 | size_t result = 0; |
| 136 | |
| 137 | /* Make sure we are tracking usage for this thread */ |
| 138 | if (_stack_debug.start == 0 || _stack_debug.end == 0) { |
| 139 | return 0; |
| 140 | } |
| 141 | |
| 142 | if (_stack_debug.start < _stack_debug.end) { |
| 143 | for (p = _stack_debug.end; p > _stack_debug.start; p--) { |
| 144 | if (*p != STACK_POISON) { |
| 145 | break; |
| 146 | } |
| 147 | } |
| 148 | result = p - _stack_debug.start; |
| 149 | } else { |
| 150 | for (p = _stack_debug.end; p < _stack_debug.start; p++) { |
| 151 | if (*p != STACK_POISON) { |
| 152 | break; |
| 153 | } |
| 154 | } |
| 155 | result = _stack_debug.start - p; |
| 156 | } |
| 157 | |
| 158 | return result; |
| 159 | } |
| 160 | |
| 161 | bool Thread::start(const char *name, int policy, int prio) |
| 162 | { |