libsystemd-bus: bring definitions in sync with kdbus

[elogind.git] / src / libsystemd-bus / bus-kernel.h

diff --git a/src/libsystemd-bus/bus-kernel.h b/src/libsystemd-bus/bus-kernel.h
index ed3f987ccda7af6ca14e6dcdc24fc8a4acf13164..69df4f4e9e4b910027e733e054a396b608173cc9 100644 (file)
--- a/src/libsystemd-bus/bus-kernel.h
+++ b/src/libsystemd-bus/bus-kernel.h
@@ -23,9 +23,31 @@
 
 #include "sd-bus.h"
 
+#define KDBUS_PART_NEXT(item) \
+        (typeof(item))(((uint8_t *)item) + ALIGN8((item)->size))
+
+#define KDBUS_PART_FOREACH(part, head, first)                           \
+        for (part = (head)->first;                                      \
+             (uint8_t *)(part) < (uint8_t *)(head) + (head)->size;      \
+             part = KDBUS_PART_NEXT(part))
+
+#define KDBUS_PART_HEADER_SIZE offsetof(struct kdbus_item, data)
+#define KDBUS_ITEM_SIZE(s) ALIGN8((s) + KDBUS_PART_HEADER_SIZE)
+
 #define MEMFD_CACHE_MAX 32
+
+/* When we cache a memfd block for reuse, we will truncate blocks
+ * longer than this in order not to keep too much data around. */
 #define MEMFD_CACHE_ITEM_SIZE_MAX (128*1024)
 
+/* This determines at which minimum size we prefer sending memfds over
+ * sending vectors */
+#define MEMFD_MIN_SIZE (128*1024)
+
+/* The size of the per-connection memory pool that we set up and where
+ * the kernel places our incoming messages */
+#define KDBUS_POOL_SIZE (16*1024*1024)
+
 struct memfd_cache {
         int fd;
         void *address;
@@ -44,3 +66,5 @@ int bus_kernel_pop_memfd(sd_bus *bus, void **address, size_t *size);
 void bus_kernel_push_memfd(sd_bus *bus, int fd, void *address, size_t size);
 
 void bus_kernel_flush_memfd(sd_bus *bus);
+
+int bus_kernel_parse_unique_name(const char *s, uint64_t *id);