mmap: resize arrays dynamically

[elogind.git] / src / journal / journal-file.c

diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index e04ffd0452d2c690e032767997d6e4218f8e2bf4..c6b25ce54b29ba47b0060045570aacad4e84b36a 100644 (file)
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -798,6 +798,14 @@ uint64_t journal_file_entry_array_n_items(Object *o) {
         return (le64toh(o->object.size) - offsetof(Object, entry_array.items)) / sizeof(uint64_t);
 }
 
+uint64_t journal_file_hash_table_n_items(Object *o) {
+        assert(o);
+        assert(o->object.type == OBJECT_DATA_HASH_TABLE ||
+               o->object.type == OBJECT_FIELD_HASH_TABLE);
+
+        return (le64toh(o->object.size) - offsetof(Object, hash_table.items)) / sizeof(HashItem);
+}
+
 static int link_entry_into_array(JournalFile *f,
                                  le64_t *first,
                                  le64_t *idx,
@@ -1995,10 +2003,7 @@ int journal_file_open(
         if (mmap_cache)
                 f->mmap = mmap_cache_ref(mmap_cache);
         else {
-                /* One context for each type, plus the zeroth catchall
-                 * context. One fd for the file plus one for each type
-                 * (which we need during verification */
-                f->mmap = mmap_cache_new(_OBJECT_TYPE_MAX, 1 + _OBJECT_TYPE_MAX);
+                f->mmap = mmap_cache_new();
                 if (!f->mmap) {
                         r = -ENOMEM;
                         goto fail;