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bus: copy iteration macro from the kernel

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This commit is contained in:
Kay Sievers
2013-04-16 02:10:55 +02:00
parent c225e76785
commit 6133cee253
1 changed files with 9 additions and 7 deletions
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src/libsystemd-bus/bus-kernel.c
+9 -7
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@@ -32,10 +32,12 @@
#include "bus-kernel.h"
#include "bus-bloom.h"
#define KDBUS_FOREACH_ITEM(i, k) \
for ((i) = (k)->items; \
(uint8_t*) (i) < (uint8_t*) (k) + (k)->size; \
(i) = (struct kdbus_msg_item *) ((uint8_t*) (i) + ALIGN8((i)->size)))
#define KDBUS_ITEM_NEXT(item) \
(typeof(item))(((uint8_t *)item) + ALIGN8((item)->size))
#define KDBUS_ITEM_FOREACH(item, head) \
for (item = (head)->items; \
(uint8_t *)(item) < (uint8_t *)(head) + (head)->size; \
item = KDBUS_ITEM_NEXT(item))
static int parse_unique_name(const char *s, uint64_t *id) {
int r;
@@ -333,7 +335,7 @@ int bus_kernel_write_message(sd_bus *bus, sd_bus_message *m) {
static void close_kdbus_msg(struct kdbus_msg *k) {
struct kdbus_msg_item *d;
KDBUS_FOREACH_ITEM(d, k) {
KDBUS_ITEM_FOREACH(d, k) {
if (d->type != KDBUS_MSG_UNIX_FDS)
continue;
@@ -359,7 +361,7 @@ static int bus_kernel_make_message(sd_bus *bus, struct kdbus_msg *k, sd_bus_mess
if (k->payload_type != KDBUS_PAYLOAD_DBUS1)
return 0;
KDBUS_FOREACH_ITEM(d, k) {
KDBUS_ITEM_FOREACH(d, k) {
size_t l;
l = d->size - offsetof(struct kdbus_msg_item, data);
@@ -409,7 +411,7 @@ static int bus_kernel_make_message(sd_bus *bus, struct kdbus_msg *k, sd_bus_mess
if (r < 0)
return r;
KDBUS_FOREACH_ITEM(d, k) {
KDBUS_ITEM_FOREACH(d, k) {
size_t l;
l = d->size - offsetof(struct kdbus_msg_item, data);