| int Cache::get_data | ( | const int | index, | |
| Qfloat ** | data, | |||
| int | len | |||
| ) |
Definition at line 106 of file svm.cpp.
References Cache::head_t::data, head, Cache::head_t::len, lru_delete(), lru_head, lru_insert(), Cache::head_t::next, size, and swap().
Referenced by SVR_Q::get_Q(), ONE_CLASS_Q::get_Q(), and SVC_Q::get_Q().
00107 { 00108 head_t *h = &head[index]; 00109 if(h->len) lru_delete(h); 00110 int more = len - h->len; 00111 00112 if(more > 0) 00113 { 00114 // free old space 00115 while(size < more) 00116 { 00117 head_t *old = lru_head.next; 00118 lru_delete(old); 00119 free(old->data); 00120 size += old->len; 00121 old->data = 0; 00122 old->len = 0; 00123 } 00124 00125 // allocate new space 00126 h->data = (Qfloat *)realloc(h->data,sizeof(Qfloat)*len); 00127 size -= more; 00128 std::swap(h->len,len); 00129 } 00130 00131 lru_insert(h); 00132 *data = h->data; 00133 return len; 00134 }
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