bus: reduce calls to KDBUS_CMD_MEMFD_SIZE_SET ioctl

[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 18ded4952a79d244b84e5df2907a83274e8b887a..0a825d7b8eab08768947a2eff77d773460e9b43d 100644 (file)
--- a/src/libsystemd-bus/bus-kernel.h
+++ b/src/libsystemd-bus/bus-kernel.h
@@ -23,16 +23,16 @@
 
 #include "sd-bus.h"
 
-#define KDBUS_PART_NEXT(item) \
+#define KDBUS_ITEM_NEXT(item) \
         (typeof(item))(((uint8_t *)item) + ALIGN8((item)->size))
 
-#define KDBUS_PART_FOREACH(part, head, first)                           \
+#define KDBUS_ITEM_FOREACH(part, head, first)                           \
         for (part = (head)->first;                                      \
              (uint8_t *)(part) < (uint8_t *)(head) + (head)->size;      \
-             part = KDBUS_PART_NEXT(part))
+             part = KDBUS_ITEM_NEXT(part))
 
-#define KDBUS_PART_HEADER_SIZE offsetof(struct kdbus_item, data)
-#define KDBUS_ITEM_SIZE(s) ALIGN8((s) + KDBUS_PART_HEADER_SIZE)
+#define KDBUS_ITEM_HEADER_SIZE offsetof(struct kdbus_item, data)
+#define KDBUS_ITEM_SIZE(s) ALIGN8((s) + KDBUS_ITEM_HEADER_SIZE)
 
 #define MEMFD_CACHE_MAX 32
 
@@ -51,23 +51,27 @@
 struct memfd_cache {
         int fd;
         void *address;
-        size_t size;
+        size_t mapped;
+        size_t allocated;
 };
 
 int bus_kernel_connect(sd_bus *b);
 int bus_kernel_take_fd(sd_bus *b);
 
 int bus_kernel_write_message(sd_bus *bus, sd_bus_message *m);
-int bus_kernel_read_message(sd_bus *bus, sd_bus_message **m);
+int bus_kernel_read_message(sd_bus *bus);
 
-int bus_kernel_create(const char *name, char **s);
+int bus_kernel_create_bus(const char *name, char **s);
+int bus_kernel_create_namespace(const char *name, char **s);
+int bus_kernel_create_starter(const char *bus, const char *name);
+int bus_kernel_create_monitor(const char *bus);
 
-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);
+int bus_kernel_pop_memfd(sd_bus *bus, void **address, size_t *mapped, size_t *allocated);
+void bus_kernel_push_memfd(sd_bus *bus, int fd, void *address, size_t mapped, size_t allocated);
 
 void bus_kernel_flush_memfd(sd_bus *bus);
 
 int bus_kernel_parse_unique_name(const char *s, uint64_t *id);
 
-int sd_bus_kernel_translate_request_name_flags(uint64_t sd_bus_flags, uint64_t *kdbus_flags);
+int kdbus_translate_request_name_flags(uint64_t sd_bus_flags, uint64_t *kdbus_flags);
 int kdbus_translate_attach_flags(uint64_t sd_bus_flags, uint64_t *kdbus_flags);