msi: Store the IStorage list as an array of STORAGE structures.

dlls/msi/storages.c

@@ -50,7 +50,7 @@ typedef struct tagMSISTORAGESVIEW
 {
     MSIVIEW view;
     MSIDATABASE *db;
-    STORAGE **storages;
+    STORAGE *storages;
     UINT max_storages;
     UINT num_rows;
     UINT row_size;
@@ -61,7 +61,7 @@ static BOOL storages_set_table_size(MSISTORAGESVIEW *sv, UINT size)
     if (size >= sv->max_storages)
     {
         sv->max_storages *= 2;
-        sv->storages = msi_realloc(sv->storages, sv->max_storages * sizeof(STORAGE *));
+        sv->storages = msi_realloc(sv->storages, sv->max_storages * sizeof(*sv->storages));
         if (!sv->storages)
             return FALSE;
     }
@@ -69,23 +69,6 @@ static BOOL storages_set_table_size(MSISTORAGESVIEW *sv, UINT size)
     return TRUE;
 }
 
-static STORAGE *create_storage(MSISTORAGESVIEW *sv, LPCWSTR name, IStorage *stg)
-{
-    STORAGE *storage;
-
-    storage = msi_alloc(sizeof(STORAGE));
-    if (!storage)
-        return NULL;
-
-    storage->str_index = msi_add_string(sv->db->strings, name, -1, FALSE);
-    storage->storage = stg;
-
-    if (storage->storage)
-        IStorage_AddRef(storage->storage);
-
-    return storage;
-}
-
 static UINT STORAGES_fetch_int(struct tagMSIVIEW *view, UINT row, UINT col, UINT *val)
 {
     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
@@ -98,7 +81,7 @@ static UINT STORAGES_fetch_int(struct tagMSIVIEW *view, UINT row, UINT col, UINT
     if (row >= sv->num_rows)
         return ERROR_NO_MORE_ITEMS;
 
-    *val = sv->storages[row]->str_index;
+    *val = sv->storages[row].str_index;
 
     return ERROR_SUCCESS;
 }
@@ -173,7 +156,7 @@ done:
 static UINT STORAGES_set_row(struct tagMSIVIEW *view, UINT row, MSIRECORD *rec, UINT mask)
 {
     MSISTORAGESVIEW *sv = (MSISTORAGESVIEW *)view;
-    IStorage *stg, *substg = NULL;
+    IStorage *stg, *substg = NULL, *prev;
     IStream *stm;
     LPWSTR name = NULL;
     HRESULT hr;
@@ -181,7 +164,7 @@ static UINT STORAGES_set_row(struct tagMSIVIEW *view, UINT row, MSIRECORD *rec,
 
     TRACE("(%p, %p)\n", view, rec);
 
-    if (row > sv->num_rows)
+    if (row >= sv->num_rows)
         return ERROR_FUNCTION_FAILED;
 
     r = MSI_RecordGetIStream(rec, 2, &stm);
@@ -218,9 +201,11 @@ static UINT STORAGES_set_row(struct tagMSIVIEW *view, UINT row, MSIRECORD *rec,
         goto done;
     }
 
-    sv->storages[row] = create_storage(sv, name, stg);
-    if (!sv->storages[row])
-        r = ERROR_FUNCTION_FAILED;
+    prev = sv->storages[row].storage;
+    sv->storages[row].str_index = msi_add_string(sv->db->strings, name, -1, FALSE);
+    IStorage_AddRef(stg);
+    sv->storages[row].storage = stg;
+    if (prev) IStorage_Release(prev);
 
 done:
     msi_free(name);
@@ -242,6 +227,8 @@ static UINT STORAGES_insert_row(struct tagMSIVIEW *view, MSIRECORD *rec, UINT ro
     if (row == -1)
         row = sv->num_rows - 1;
 
+    memset(&sv->storages[row], 0, sizeof(sv->storages[row]));
+
     /* FIXME have to readjust rows */
 
     return STORAGES_set_row(view, row, rec, 0);
@@ -400,9 +387,8 @@ static UINT STORAGES_delete(struct tagMSIVIEW *view)
 
     for (i = 0; i < sv->num_rows; i++)
     {
-        if (sv->storages[i]->storage)
-            IStorage_Release(sv->storages[i]->storage);
-        msi_free(sv->storages[i]);
+        if (sv->storages[i].storage)
+            IStorage_Release(sv->storages[i].storage);
     }
 
     msi_free(sv->storages);
@@ -436,7 +422,6 @@ static const MSIVIEWOPS storages_ops =
 
 static INT add_storages_to_table(MSISTORAGESVIEW *sv)
 {
-    STORAGE *storage = NULL;
     IEnumSTATSTG *stgenum = NULL;
     STATSTG stat;
     HRESULT hr;
@@ -447,7 +432,7 @@ static INT add_storages_to_table(MSISTORAGESVIEW *sv)
         return -1;
 
     sv->max_storages = 1;
-    sv->storages = msi_alloc(sizeof(STORAGE *));
+    sv->storages = msi_alloc(sizeof(*sv->storages));
     if (!sv->storages)
         return -1;
 
@@ -466,26 +451,19 @@ static INT add_storages_to_table(MSISTORAGESVIEW *sv)
 
         TRACE("enumerated storage %s\n", debugstr_w(stat.pwcsName));
 
-        storage = create_storage(sv, stat.pwcsName, NULL);
-        if (!storage)
+        if (!storages_set_table_size(sv, ++count))
         {
             count = -1;
-            CoTaskMemFree(stat.pwcsName);
             break;
         }
 
+        sv->storages[count - 1].str_index = msi_add_string(sv->db->strings, stat.pwcsName, -1, FALSE);
+        sv->storages[count - 1].storage = NULL;
+
         IStorage_OpenStorage(sv->db->storage, stat.pwcsName, NULL,
                              STGM_READ | STGM_SHARE_EXCLUSIVE, NULL, 0,
-                             &storage->storage);
+                             &sv->storages[count - 1].storage);
         CoTaskMemFree(stat.pwcsName);
-
-        if (!storages_set_table_size(sv, ++count))
-        {
-            count = -1;
-            break;
-        }
-
-        sv->storages[count - 1] = storage;
     }
 
     IEnumSTATSTG_Release(stgenum);