static struct pb_buffer *
pb_debug_manager_create_buffer(struct pb_manager *_mgr,
size_t size,
const struct pb_desc *desc)
{
struct pb_debug_manager *mgr = pb_debug_manager(_mgr);
struct pb_debug_buffer *buf;
struct pb_desc real_desc;
size_t real_size;
buf = CALLOC_STRUCT(pb_debug_buffer);
if(!buf)
return NULL;
real_size = size + 2*mgr->band_size;
real_desc = *desc;
real_desc.usage |= PIPE_BUFFER_USAGE_CPU_WRITE;
real_desc.usage |= PIPE_BUFFER_USAGE_CPU_READ;
buf->buffer = mgr->provider->create_buffer(mgr->provider,
real_size,
&real_desc);
if(!buf->buffer) {
FREE(buf);
return NULL;
}
assert(buf->buffer->base.refcount >= 1);
assert(pb_check_alignment(real_desc.alignment, buf->buffer->base.alignment));
assert(pb_check_usage(real_desc.usage, buf->buffer->base.usage));
assert(buf->buffer->base.size >= real_size);
buf->base.base.refcount = 1;
buf->base.base.alignment = desc->alignment;
buf->base.base.usage = desc->usage;
buf->base.base.size = size;
buf->base.vtbl = &pb_debug_buffer_vtbl;
buf->mgr = mgr;
buf->underflow_size = mgr->band_size;
buf->overflow_size = buf->buffer->base.size - buf->underflow_size - size;
pb_debug_buffer_fill(buf);
return &buf->base;
}
static struct pb_buffer *
pb_debug_manager_create_buffer(struct pb_manager *_mgr,
pb_size size,
const struct pb_desc *desc)
{
struct pb_debug_manager *mgr = pb_debug_manager(_mgr);
struct pb_debug_buffer *buf;
struct pb_desc real_desc;
pb_size real_size;
assert(size);
assert(desc->alignment);
buf = CALLOC_STRUCT(pb_debug_buffer);
if(!buf)
return NULL;
real_size = mgr->underflow_size + size + mgr->overflow_size;
real_desc = *desc;
real_desc.usage |= PIPE_BUFFER_USAGE_CPU_WRITE;
real_desc.usage |= PIPE_BUFFER_USAGE_CPU_READ;
buf->buffer = mgr->provider->create_buffer(mgr->provider,
real_size,
&real_desc);
if(!buf->buffer) {
FREE(buf);
#if 0
pipe_mutex_lock(mgr->mutex);
debug_printf("%s: failed to create buffer\n", __FUNCTION__);
if(!LIST_IS_EMPTY(&mgr->list))
pb_debug_manager_dump(mgr);
pipe_mutex_unlock(mgr->mutex);
#endif
return NULL;
}
assert(pipe_is_referenced(&buf->buffer->base.reference));
assert(pb_check_alignment(real_desc.alignment, buf->buffer->base.alignment));
assert(pb_check_usage(real_desc.usage, buf->buffer->base.usage));
assert(buf->buffer->base.size >= real_size);
pipe_reference_init(&buf->base.base.reference, 1);
buf->base.base.alignment = desc->alignment;
buf->base.base.usage = desc->usage;
buf->base.base.size = size;
buf->base.vtbl = &pb_debug_buffer_vtbl;
buf->mgr = mgr;
buf->underflow_size = mgr->underflow_size;
buf->overflow_size = buf->buffer->base.size - buf->underflow_size - size;
debug_backtrace_capture(buf->create_backtrace, 1, PB_DEBUG_CREATE_BACKTRACE);
pb_debug_buffer_fill(buf);
pipe_mutex_init(buf->mutex);
pipe_mutex_lock(mgr->mutex);
LIST_ADDTAIL(&buf->head, &mgr->list);
pipe_mutex_unlock(mgr->mutex);
return &buf->base;
}