diff options
| -rw-r--r-- | libhurd-mm/ChangeLog | 6 | ||||
| -rw-r--r-- | libhurd-mm/message-buffer.c | 15 |
2 files changed, 19 insertions, 2 deletions
diff --git a/libhurd-mm/ChangeLog b/libhurd-mm/ChangeLog index ca8da4a..e19d1d9 100644 --- a/libhurd-mm/ChangeLog +++ b/libhurd-mm/ChangeLog @@ -1,5 +1,11 @@ 2008-12-18 Neal H. Walfield <neal@gnu.org> + * message-buffer.c (num_threads): New function. + (BUFFERS_LOW_WATER): Define in terms of the number of threads. + (BUFFERS_HIGH_WATER): Likewise. + +2008-12-18 Neal H. Walfield <neal@gnu.org> + * message-buffer.c (hurd_message_buffer_alloc): Fix compare and swap logic. diff --git a/libhurd-mm/message-buffer.c b/libhurd-mm/message-buffer.c index ecb2b58..1bee6a1 100644 --- a/libhurd-mm/message-buffer.c +++ b/libhurd-mm/message-buffer.c @@ -268,8 +268,19 @@ hurd_message_buffer_free (struct hurd_message_buffer *buffer) } } -#define BUFFERS_LOW_WATER 4 -#define BUFFERS_HIGH_WATER 8 +static int +num_threads (void) +{ + extern int __pthread_num_threads __attribute__ ((weak)); + + if (&__pthread_num_threads) + return __pthread_num_threads; + else + return 1; +} + +#define BUFFERS_LOW_WATER (4 + num_threads () * 2) +#define BUFFERS_HIGH_WATER (8 + num_threads () * 3) struct hurd_message_buffer * hurd_message_buffer_alloc (void) |