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| author | Neal H. Walfield <neal@gnu.org> | 2008-12-18 22:43:01 +0100 |
|---|---|---|
| committer | Neal H. Walfield <neal@gnu.org> | 2008-12-18 22:43:01 +0100 |
| commit | bb5d7d1ddfb8a580b60ae846de5e8ce201e0016d (patch) | |
| tree | 43c440035bbe281c1abc54b1470d9889c6810bf3 | |
| parent | 60a851e8caed8f1d79e943b3eb099690e72e0c89 (diff) | |
Add new function vg_message_space.
2008-12-18 Neal H. Walfield <neal@gnu.org>
* viengoos/message.h (vg_message_space): New function.
| -rw-r--r-- | libviengoos/ChangeLog | 4 | ||||
| -rw-r--r-- | libviengoos/viengoos/message.h | 8 |
2 files changed, 12 insertions, 0 deletions
diff --git a/libviengoos/ChangeLog b/libviengoos/ChangeLog index b21f285..7520696 100644 --- a/libviengoos/ChangeLog +++ b/libviengoos/ChangeLog @@ -1,5 +1,9 @@ 2008-12-18 Neal H. Walfield <neal@gnu.org> + * viengoos/message.h (vg_message_space): New function. + +2008-12-18 Neal H. Walfield <neal@gnu.org> + * viengoos/rpc.h (RPC_SEND_MARSHAL): Make the reply messenger the first capability. (RPC_SEND_UNMARSHAL): Likewise. diff --git a/libviengoos/viengoos/message.h b/libviengoos/viengoos/message.h index 514248e..e23c155 100644 --- a/libviengoos/viengoos/message.h +++ b/libviengoos/viengoos/message.h @@ -190,6 +190,14 @@ vg_message_word_set (struct vg_message *msg, int pos, uintptr_t word) ((uintptr_t *) vg_message_data (msg))[pos] = word; } +/* Return the amount of space (in bytes) remaining in MSG. */ +static inline int +vg_message_space (struct vg_message *msg) +{ + return PAGESIZE - __builtin_offsetof (struct vg_message, caps) + - msg->data_count - msg->cap_count * sizeof (vg_addr_t); +} + #include <s-printf.h> static inline void |