diff options
| author | Kay Sievers <kay@vrfy.org> | 2013-04-16 02:10:55 +0200 |
|---|---|---|
| committer | Kay Sievers <kay@vrfy.org> | 2013-04-16 02:10:55 +0200 |
| commit | 6133cee253d6b6bbfe2c7fb6383eb7e73ea1b1d1 (patch) | |
| tree | 965fc1a8540bd55b9d5c8b2bbf77f111ef01a56e /src/libsystemd-bus | |
| parent | c225e76785e21d72a4bc9ddbd925b6835598fb69 (diff) | |
bus: copy iteration macro from the kernel
Diffstat (limited to 'src/libsystemd-bus')
| -rw-r--r-- | src/libsystemd-bus/bus-kernel.c | 16 |
1 files changed, 9 insertions, 7 deletions
diff --git a/src/libsystemd-bus/bus-kernel.c b/src/libsystemd-bus/bus-kernel.c index b9b22fff56..086877eb86 100644 --- a/src/libsystemd-bus/bus-kernel.c +++ b/src/libsystemd-bus/bus-kernel.c @@ -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); |