YQL-16239 Move purecalc to public

1 files changed, 20 insertions, 0 deletions

diff --git a/library/cpp/deprecated/datafile/loadmode.h b/library/cpp/deprecated/datafile/loadmode.h
new file mode 100644
index 00000000000..f04054dd645
--- /dev/null
+++ b/library/cpp/deprecated/datafile/loadmode.h
@@ -0,0 +1,20 @@
+#pragma once
+
+// It is recommended to support all reasonal value combinations via this enum,
+// to let Load() function argument be of EDataLoadMode type, not just int type
+
+enum EDataLoadMode {
+    DLM_READ = 0,
+    DLM_MMAP_PRC = 1,      // precharge
+    DLM_MMAP = 2,          // w/o precharge
+    DLM_MMAP_AUTO_PRC = 3, // precharge automatically (same as DLM_MMAP unless specifically supported)
+    DLM_LD_TYPE_MASK = 15,
+    DLM_EXACT_SIZE = 16, // fail if input file is larger than what header says
+
+    DLM_READ_ESZ = DLM_READ | DLM_EXACT_SIZE,
+    DLM_MMAP_PRC_ESZ = DLM_MMAP_PRC | DLM_EXACT_SIZE,
+    DLM_MMAP_ESZ = DLM_MMAP | DLM_EXACT_SIZE,
+    DLM_MMAP_APRC_ESZ = DLM_MMAP_AUTO_PRC | DLM_EXACT_SIZE,
+
+    DLM_DEFAULT = DLM_MMAP_PRC_ESZ,
+};