build-sys: use #if Y instead of #ifdef Y everywhere

[thirdparty/systemd.git] / src / journal / journal-def.h

diff --git a/src/journal/journal-def.h b/src/journal/journal-def.h
index 7e407a416cb1ca1674202c1162cddcc745d91d46..1bd5de4c4308d8158c7c0087c258bef2a137c03d 100644 (file)
--- a/src/journal/journal-def.h
+++ b/src/journal/journal-def.h
@@ -1,5 +1,3 @@
-/*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/
-
 #pragma once
 
 /***
@@ -21,11 +19,10 @@
   along with systemd; If not, see <http://www.gnu.org/licenses/>.
 ***/
 
-#include "sparse-endian.h"
-
-#include <systemd/sd-id128.h>
+#include "sd-id128.h"
 
 #include "macro.h"
+#include "sparse-endian.h"
 
 /*
  * If you change this file you probably should also change its documentation:
@@ -52,8 +49,8 @@ typedef struct HashItem HashItem;
 typedef struct FSSHeader FSSHeader;
 
 /* Object types */
-enum {
-        OBJECT_UNUSED,
+typedef enum ObjectType {
+        OBJECT_UNUSED, /* also serves as "any type" or "additional context" */
         OBJECT_DATA,
         OBJECT_FIELD,
         OBJECT_ENTRY,
@@ -62,13 +59,17 @@ enum {
         OBJECT_ENTRY_ARRAY,
         OBJECT_TAG,
         _OBJECT_TYPE_MAX
-};
+} ObjectType;
 
 /* Object flags */
 enum {
-        OBJECT_COMPRESSED = 1
+        OBJECT_COMPRESSED_XZ = 1 << 0,
+        OBJECT_COMPRESSED_LZ4 = 1 << 1,
+        _OBJECT_COMPRESSED_MAX
 };
 
+#define OBJECT_COMPRESSION_MASK (OBJECT_COMPRESSED_XZ | OBJECT_COMPRESSED_LZ4)
+
 struct ObjectHeader {
         uint8_t type;
         uint8_t flags;
@@ -155,13 +156,33 @@ enum {
 
 /* Header flags */
 enum {
-        HEADER_INCOMPATIBLE_COMPRESSED = 1
+        HEADER_INCOMPATIBLE_COMPRESSED_XZ = 1 << 0,
+        HEADER_INCOMPATIBLE_COMPRESSED_LZ4 = 1 << 1,
 };
 
+#define HEADER_INCOMPATIBLE_ANY (HEADER_INCOMPATIBLE_COMPRESSED_XZ|HEADER_INCOMPATIBLE_COMPRESSED_LZ4)
+
+#if HAVE_XZ && HAVE_LZ4
+#  define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_ANY
+#elif HAVE_XZ
+#  define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_COMPRESSED_XZ
+#elif HAVE_LZ4
+#  define HEADER_INCOMPATIBLE_SUPPORTED HEADER_INCOMPATIBLE_COMPRESSED_LZ4
+#else
+#  define HEADER_INCOMPATIBLE_SUPPORTED 0
+#endif
+
 enum {
         HEADER_COMPATIBLE_SEALED = 1
 };
 
+#define HEADER_COMPATIBLE_ANY HEADER_COMPATIBLE_SEALED
+#if HAVE_GCRYPT
+#  define HEADER_COMPATIBLE_SUPPORTED HEADER_COMPATIBLE_SEALED
+#else
+#  define HEADER_COMPATIBLE_SUPPORTED 0
+#endif
+
 #define HEADER_SIGNATURE ((char[]) { 'L', 'P', 'K', 'S', 'H', 'H', 'R', 'H' })
 
 struct Header {
@@ -196,7 +217,7 @@ struct Header {
         le64_t n_tags;
         le64_t n_entry_arrays;
 
-        /* Size: 224 */
+        /* Size: 240 */
 } _packed_;
 
 #define FSS_HEADER_SIGNATURE ((char[]) { 'K', 'S', 'H', 'H', 'R', 'H', 'L', 'P' })