journal: replace contexts hashmap with a plain array

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

diff --git a/src/journal/journal-file.c b/src/journal/journal-file.c
index 6ee0fff04c8aecf27c7de1ec6711c15e9616d974..7cdaf2920b8c13d94892323bc3c98394facc7fc3 100644 (file)
--- a/src/journal/journal-file.c
+++ b/src/journal/journal-file.c
@@ -374,12 +374,13 @@ static int journal_file_allocate(JournalFile *f, uint64_t offset, uint64_t size)
         return 0;
 }
 
-static unsigned type_to_context(int type) {
+static unsigned type_to_context(ObjectType type) {
         /* One context for each type, plus one catch-all for the rest */
+        assert_cc(_OBJECT_TYPE_MAX <= MMAP_CACHE_MAX_CONTEXTS);
         return type > OBJECT_UNUSED && type < _OBJECT_TYPE_MAX ? type : 0;
 }
 
-static int journal_file_move_to(JournalFile *f, int context, bool keep_always, uint64_t offset, uint64_t size, void **ret) {
+static int journal_file_move_to(JournalFile *f, ObjectType type, bool keep_always, uint64_t offset, uint64_t size, void **ret) {
         assert(f);
         assert(ret);
 
@@ -396,7 +397,7 @@ static int journal_file_move_to(JournalFile *f, int context, bool keep_always, u
                         return -EADDRNOTAVAIL;
         }
 
-        return mmap_cache_get(f->mmap, f->fd, f->prot, context, keep_always, offset, size, &f->last_stat, ret);
+        return mmap_cache_get(f->mmap, f->fd, f->prot, type_to_context(type), keep_always, offset, size, &f->last_stat, ret);
 }
 
 static uint64_t minimum_header_size(Object *o) {
@@ -417,7 +418,7 @@ static uint64_t minimum_header_size(Object *o) {
         return table[o->object.type];
 }
 
-int journal_file_move_to_object(JournalFile *f, int type, uint64_t offset, Object **ret) {
+int journal_file_move_to_object(JournalFile *f, ObjectType type, uint64_t offset, Object **ret) {
         int r;
         void *t;
         Object *o;
@@ -430,7 +431,7 @@ int journal_file_move_to_object(JournalFile *f, int type, uint64_t offset, Objec
         if (!VALID64(offset))
                 return -EFAULT;
 
-        r = journal_file_move_to(f, type_to_context(type), false, offset, sizeof(ObjectHeader), &t);
+        r = journal_file_move_to(f, type, false, offset, sizeof(ObjectHeader), &t);
         if (r < 0)
                 return r;
 
@@ -450,7 +451,7 @@ int journal_file_move_to_object(JournalFile *f, int type, uint64_t offset, Objec
                 return -EBADMSG;
 
         if (s > sizeof(ObjectHeader)) {
-                r = journal_file_move_to(f, type_to_context(type), false, offset, s, &t);
+                r = journal_file_move_to(f, type, false, offset, s, &t);
                 if (r < 0)
                         return r;
 
@@ -487,7 +488,7 @@ static uint64_t journal_file_entry_seqnum(JournalFile *f, uint64_t *seqnum) {
         return r;
 }
 
-int journal_file_append_object(JournalFile *f, int type, uint64_t size, Object **ret, uint64_t *offset) {
+int journal_file_append_object(JournalFile *f, ObjectType type, uint64_t size, Object **ret, uint64_t *offset) {
         int r;
         uint64_t p;
         Object *tail, *o;