Rev 3606 | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed
| Rev 3606 | Rev 4692 | ||
|---|---|---|---|
| Line 57... | Line 57... | ||
| 57 | #define FUTEX_HT_SIZE 1024 /* keep it a power of 2 */ |
57 | #define FUTEX_HT_SIZE 1024 /* keep it a power of 2 */ |
| 58 | 58 | ||
| 59 | static void futex_initialize(futex_t *futex); |
59 | static void futex_initialize(futex_t *futex); |
| 60 | 60 | ||
| 61 | static futex_t *futex_find(uintptr_t paddr); |
61 | static futex_t *futex_find(uintptr_t paddr); |
| 62 | static index_t futex_ht_hash(unative_t *key); |
62 | static size_t futex_ht_hash(unative_t *key); |
| 63 | static bool futex_ht_compare(unative_t *key, count_t keys, link_t *item); |
63 | static bool futex_ht_compare(unative_t *key, size_t keys, link_t *item); |
| 64 | static void futex_ht_remove_callback(link_t *item); |
64 | static void futex_ht_remove_callback(link_t *item); |
| 65 | 65 | ||
| 66 | /** |
66 | /** |
| 67 | * Read-write lock protecting global futex hash table. |
67 | * Read-write lock protecting global futex hash table. |
| 68 | * It is also used to serialize access to all futex_t structures. |
68 | * It is also used to serialize access to all futex_t structures. |
| Line 286... | Line 286... | ||
| 286 | * @param key Address where the key (i.e. physical address of futex counter) is |
286 | * @param key Address where the key (i.e. physical address of futex counter) is |
| 287 | * stored. |
287 | * stored. |
| 288 | * |
288 | * |
| 289 | * @return Index into futex hash table. |
289 | * @return Index into futex hash table. |
| 290 | */ |
290 | */ |
| 291 | index_t futex_ht_hash(unative_t *key) |
291 | size_t futex_ht_hash(unative_t *key) |
| 292 | { |
292 | { |
| 293 | return *key & (FUTEX_HT_SIZE-1); |
293 | return (*key & (FUTEX_HT_SIZE - 1)); |
| 294 | } |
294 | } |
| 295 | 295 | ||
| 296 | /** Compare futex hash table item with a key. |
296 | /** Compare futex hash table item with a key. |
| 297 | * |
297 | * |
| 298 | * @param key Address where the key (i.e. physical address of futex counter) is |
298 | * @param key Address where the key (i.e. physical address of futex counter) is |
| 299 | * stored. |
299 | * stored. |
| 300 | * |
300 | * |
| 301 | * @return True if the item matches the key. False otherwise. |
301 | * @return True if the item matches the key. False otherwise. |
| 302 | */ |
302 | */ |
| 303 | bool futex_ht_compare(unative_t *key, count_t keys, link_t *item) |
303 | bool futex_ht_compare(unative_t *key, size_t keys, link_t *item) |
| 304 | { |
304 | { |
| 305 | futex_t *futex; |
305 | futex_t *futex; |
| 306 | 306 | ||
| 307 | ASSERT(keys == 1); |
307 | ASSERT(keys == 1); |
| 308 | 308 | ||