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authorJim Meyering <jim@meyering.net>2001-11-23 08:09:14 +0000
committerJim Meyering <jim@meyering.net>2001-11-23 08:09:14 +0000
commitc759590c0398480788e832286127da0db75eb141 (patch)
tree4ae7cc0d85c6df6a3854031611cd479d7d3bc847 /lib/hash.c
parent647185eda4ef74b8538be5265588bdfd062ac7a9 (diff)
downloadcoreutils-c759590c0398480788e832286127da0db75eb141.tar.xz
(struct hash_table): Define it here instead.
Diffstat (limited to 'lib/hash.c')
-rw-r--r--lib/hash.c34
1 files changed, 34 insertions, 0 deletions
diff --git a/lib/hash.c b/lib/hash.c
index 1cf5c5ee3..df8f4bd61 100644
--- a/lib/hash.c
+++ b/lib/hash.c
@@ -61,6 +61,40 @@ char *malloc ();
#include "hash.h"
+struct hash_table
+ {
+ /* The array of buckets starts at BUCKET and extends to BUCKET_LIMIT-1,
+ for a possibility of N_BUCKETS. Among those, N_BUCKETS_USED buckets
+ are not empty, there are N_ENTRIES active entries in the table. */
+ struct hash_entry *bucket;
+ struct hash_entry *bucket_limit;
+ unsigned n_buckets;
+ unsigned n_buckets_used;
+ unsigned n_entries;
+
+ /* Tuning arguments, kept in a physicaly separate structure. */
+ const Hash_tuning *tuning;
+
+ /* Three functions are given to `hash_initialize', see the documentation
+ block for this function. In a word, HASHER randomizes a user entry
+ into a number up from 0 up to some maximum minus 1; COMPARATOR returns
+ true if two user entries compare equally; and DATA_FREER is the cleanup
+ function for a user entry. */
+ Hash_hasher hasher;
+ Hash_comparator comparator;
+ Hash_data_freer data_freer;
+
+ /* A linked list of freed struct hash_entry structs. */
+ struct hash_entry *free_entry_list;
+
+#if USE_OBSTACK
+ /* Whenever obstacks are used, it is possible to allocate all overflowed
+ entries into a single stack, so they all can be freed in a single
+ operation. It is not clear if the speedup is worth the trouble. */
+ struct obstack entry_stack;
+#endif
+ };
+
/* A hash table contains many internal entries, each holding a pointer to
some user provided data (also called a user entry). An entry indistinctly
refers to both the internal entry and its associated user entry. A user