Cross Reference: /openjdk7/hotspot/src/share/vm/utilities/bitMap.hpp

Lines Matching defs:bit
41   typedef size_t idx_t;         // Type used for bit and word indices.
60   // Return the position of bit within the word that contains it (e.g., if
62   static idx_t bit_in_word(idx_t bit) { return bit & (BitsPerWord - 1); }
64   // Return a mask that will select the specified bit, when applied to the word
65   // containing the bit.
66   static bm_word_t bit_mask(idx_t bit) { return (bm_word_t)1 << bit_in_word(bit); }
68   // Return the index of the word containing the specified bit.
69   static idx_t word_index(idx_t bit)  { return bit >> LogBitsPerWord; }
71   // Return the bit number of the first bit in the specified word.
78   // Return a pointer to the word containing the specified bit.
79   bm_word_t* word_addr(idx_t bit) const { return map() + word_index(bit); }
101   idx_t word_index_round_up(idx_t bit) const;
133   // Preserves state currently in bit map by copying data.
151   // Align bit index up or down to the next bitmap word boundary, or check
153   static idx_t word_align_up(idx_t bit) {
154     return align_size_up(bit, BitsPerWord);
156   static idx_t word_align_down(idx_t bit) {
157     return align_size_down(bit, BitsPerWord);
159   static bool is_word_aligned(idx_t bit) {
160     return word_align_up(bit) == bit;
163   // Set or clear the specified bit.
164   inline void set_bit(idx_t bit);
165   inline void clear_bit(idx_t bit);
167   // Atomically set or clear the specified bit.
168   inline bool par_set_bit(idx_t bit);
169   inline bool par_clear_bit(idx_t bit);
172   // will CAS the value into the bitmap and is quite a bit slower.
174   // calling thread was the one that changed the value of the bit.
189   // inlines the predominant case of a 1-bit range.  Works best when hint is a
277   typedef BitMap::idx_t idx_t;          // Type used for bit and word indices.
346   // Callback when bit in map is set.  Should normally return "true";