LIST_DEL(&buf->head);
assert(mgr->numDelayed);
--mgr->numDelayed;
- assert(!pipe_is_referenced(&buf->base.base.reference));
+ assert(!pipe_is_referenced(&buf->base.reference));
pb_reference(&buf->buffer, NULL);
FREE(buf);
}
struct pb_cache_manager *mgr = buf->mgr;
pipe_mutex_lock(mgr->mutex);
- assert(!pipe_is_referenced(&buf->base.base.reference));
+ assert(!pipe_is_referenced(&buf->base.reference));
_pb_cache_buffer_list_check_free(mgr);
static void *
pb_cache_buffer_map(struct pb_buffer *_buf,
- unsigned flags)
+ unsigned flags, void *flush_ctx)
{
struct pb_cache_buffer *buf = pb_cache_buffer(_buf);
- return pb_map(buf->buffer, flags);
+ return pb_map(buf->buffer, flags, flush_ctx);
}
};
-static INLINE boolean
+static INLINE int
pb_cache_is_buffer_compat(struct pb_cache_buffer *buf,
pb_size size,
const struct pb_desc *desc)
{
- void *map;
-
- if(buf->base.base.size < size)
- return FALSE;
+ if(buf->base.size < size)
+ return 0;
/* be lenient with size */
- if(buf->base.base.size >= 2*size)
- return FALSE;
+ if(buf->base.size >= 2*size)
+ return 0;
- if(!pb_check_alignment(desc->alignment, buf->base.base.alignment))
- return FALSE;
+ if(!pb_check_alignment(desc->alignment, buf->base.alignment))
+ return 0;
- if(!pb_check_usage(desc->usage, buf->base.base.usage))
- return FALSE;
+ if(!pb_check_usage(desc->usage, buf->base.usage))
+ return 0;
+
+ if (buf->mgr->provider->is_buffer_busy) {
+ if (buf->mgr->provider->is_buffer_busy(buf->mgr->provider, buf->buffer))
+ return -1;
+ } else {
+ void *ptr = pb_map(buf->buffer, PB_USAGE_DONTBLOCK, NULL);
+
+ if (!ptr)
+ return -1;
- map = pb_map(buf->buffer, PB_USAGE_DONTBLOCK);
- if (!map) {
- return FALSE;
+ pb_unmap(buf->buffer);
}
- pb_unmap(buf->buffer);
-
- return TRUE;
+ return 1;
}
struct pb_cache_buffer *curr_buf;
struct list_head *curr, *next;
int64_t now;
-
+ int ret = 0;
+
pipe_mutex_lock(mgr->mutex);
buf = NULL;
now = os_time_get();
while(curr != &mgr->delayed) {
curr_buf = LIST_ENTRY(struct pb_cache_buffer, curr, head);
- if(!buf && pb_cache_is_buffer_compat(curr_buf, size, desc))
- buf = curr_buf;
+ if(!buf && (ret = pb_cache_is_buffer_compat(curr_buf, size, desc) > 0))
+ buf = curr_buf;
else if(os_time_timeout(curr_buf->start, curr_buf->end, now))
- _pb_cache_buffer_destroy(curr_buf);
+ _pb_cache_buffer_destroy(curr_buf);
else
/* This buffer (and all hereafter) are still hot in cache */
break;
+ if (ret == -1)
+ break;
curr = next;
next = curr->next;
}
/* keep searching in the hot buffers */
- if(!buf) {
+ if(!buf && ret != -1) {
while(curr != &mgr->delayed) {
curr_buf = LIST_ENTRY(struct pb_cache_buffer, curr, head);
- if(pb_cache_is_buffer_compat(curr_buf, size, desc)) {
+ ret = pb_cache_is_buffer_compat(curr_buf, size, desc);
+ if (ret > 0) {
buf = curr_buf;
break;
}
+ if (ret == -1)
+ break;
/* no need to check the timeout here */
curr = next;
next = curr->next;
if(buf) {
LIST_DEL(&buf->head);
+ --mgr->numDelayed;
pipe_mutex_unlock(mgr->mutex);
/* Increase refcount */
- pipe_reference_init(&buf->base.base.reference, 1);
+ pipe_reference_init(&buf->base.reference, 1);
return &buf->base;
}
return NULL;
buf->buffer = mgr->provider->create_buffer(mgr->provider, size, desc);
+
+ /* Empty the cache and try again. */
+ if (!buf->buffer) {
+ mgr->base.flush(&mgr->base);
+ buf->buffer = mgr->provider->create_buffer(mgr->provider, size, desc);
+ }
+
if(!buf->buffer) {
FREE(buf);
return NULL;
}
- assert(pipe_is_referenced(&buf->buffer->base.reference));
- assert(pb_check_alignment(desc->alignment, buf->buffer->base.alignment));
- assert(pb_check_usage(desc->usage, buf->buffer->base.usage));
- assert(buf->buffer->base.size >= size);
+ assert(pipe_is_referenced(&buf->buffer->reference));
+ assert(pb_check_alignment(desc->alignment, buf->buffer->alignment));
+ assert(pb_check_usage(desc->usage, buf->buffer->usage));
+ assert(buf->buffer->size >= size);
- pipe_reference_init(&buf->base.base.reference, 1);
- buf->base.base.alignment = buf->buffer->base.alignment;
- buf->base.base.usage = buf->buffer->base.usage;
- buf->base.base.size = buf->buffer->base.size;
+ pipe_reference_init(&buf->base.reference, 1);
+ buf->base.alignment = buf->buffer->alignment;
+ buf->base.usage = buf->buffer->usage;
+ buf->base.size = buf->buffer->size;
buf->base.vtbl = &pb_cache_buffer_vtbl;
buf->mgr = mgr;