Subversion Repositories HelenOS

Rev

Rev 2141 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 2141 Rev 4490
Line 49... Line 49...
49 
#include <debug.h>
 49 
#include <debug.h>
50 
#include <memstr.h>
 50 
#include <memstr.h>
51 
#include <adt/hash_table.h>
 51 
#include <adt/hash_table.h>
52 
#include <align.h>
 52 
#include <align.h>
53 
 
 53 
 
54 
static index_t hash(unative_t key[]);
 54 
static size_t hash(unative_t key[]);
55 
static bool compare(unative_t key[], count_t keys, link_t *item);
 55 
static bool compare(unative_t key[], size_t keys, link_t *item);
56 
static void remove_callback(link_t *item);
 56 
static void remove_callback(link_t *item);
57 
 
 57 
 
58 
static void ht_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame,
 58 
static void ht_mapping_insert(as_t *as, uintptr_t page, uintptr_t frame,
59 
    int flags);
 59 
    int flags);
60 
static void ht_mapping_remove(as_t *as, uintptr_t page);
 60 
static void ht_mapping_remove(as_t *as, uintptr_t page);
Line 91... Line 91...
91 
 *
 91 
 *
92 
 * @param key Array of two keys (i.e. page and address space).
 92 
 * @param key Array of two keys (i.e. page and address space).
93 
 *
 93 
 *
94 
 * @return Index into page hash table.
 94 
 * @return Index into page hash table.
95 
 */
 95 
 */
96 
index_t hash(unative_t key[])
 96 
size_t hash(unative_t key[])
97 
{
 97 
{
98 
    as_t *as = (as_t *) key[KEY_AS];
 98 
    as_t *as = (as_t *) key[KEY_AS];
99 
    uintptr_t page = (uintptr_t) key[KEY_PAGE];
 99 
    uintptr_t page = (uintptr_t) key[KEY_PAGE];
100 
    index_t index;
 100 
    size_t index;
101 
   
 101 
   
102 
    /*
 102 
    /*
103 
     * Virtual page addresses have roughly the same probability
 103 
     * Virtual page addresses have roughly the same probability
104 
     * of occurring. Least significant bits of VPN compose the
 104 
     * of occurring. Least significant bits of VPN compose the
105 
     * hash index.
 105 
     * hash index.
Line 122... Line 122...
122 
 * @param keys Number of keys passed.
 122 
 * @param keys Number of keys passed.
123 
 * @param item Item to compare the keys with.
 123 
 * @param item Item to compare the keys with.
124 
 *
 124 
 *
125 
 * @return true on match, false otherwise.
 125 
 * @return true on match, false otherwise.
126 
 */
 126 
 */
127 
bool compare(unative_t key[], count_t keys, link_t *item)
 127 
bool compare(unative_t key[], size_t keys, link_t *item)
128 
{
 128 
{
129 
    pte_t *t;
 129 
    pte_t *t;
130 
 
 130 
 
131 
    ASSERT(item);
 131 
    ASSERT(item);
132 
    ASSERT((keys > 0) && (keys <= PAGE_HT_KEYS));
 132 
    ASSERT((keys > 0) && (keys <= PAGE_HT_KEYS));