75 	struct wl_shm_pool *pool;  member
85 shm_pool_finish_resize(struct wl_shm_pool *pool)  in shm_pool_finish_resize()  argument
89 	if (pool->size == pool->new_size)  in shm_pool_finish_resize()
92 	data = mremap(pool->data, pool->size, pool->new_size, MREMAP_MAYMOVE);  in shm_pool_finish_resize()
94 		wl_resource_post_error(pool->resource,  in shm_pool_finish_resize()
100 	pool->data = data;  in shm_pool_finish_resize()
101 	pool->size = pool->new_size;  in shm_pool_finish_resize()
105 shm_pool_unref(struct wl_shm_pool *pool, bool external)  in shm_pool_unref()  argument
108 		pool->external_refcount--;  in shm_pool_unref()
109 		if (pool->external_refcount == 0)  in shm_pool_unref()
110 			shm_pool_finish_resize(pool);  in shm_pool_unref()
112 		pool->internal_refcount--;  in shm_pool_unref()
115 	if (pool->internal_refcount + pool->external_refcount)  in shm_pool_unref()
118 	munmap(pool->data, pool->size);  in shm_pool_unref()
119 	free(pool);  in shm_pool_unref()
127 	if (buffer->pool)  in destroy_buffer()
128 		shm_pool_unref(buffer->pool, false);  in destroy_buffer()
169 	struct wl_shm_pool *pool = wl_resource_get_user_data(resource);  in shm_pool_create_buffer()  local
181 	    offset > pool->size - stride * height) {  in shm_pool_create_buffer()
200 	buffer->pool = pool;  in shm_pool_create_buffer()
201 	pool->internal_refcount++;  in shm_pool_create_buffer()
207 		shm_pool_unref(pool, false);  in shm_pool_create_buffer()
220 	struct wl_shm_pool *pool = wl_resource_get_user_data(resource);  in destroy_pool()  local
222 	shm_pool_unref(pool, false);  in destroy_pool()
235 	struct wl_shm_pool *pool = wl_resource_get_user_data(resource);  in shm_pool_resize()  local
237 	if (size < pool->size) {  in shm_pool_resize()
240 				       "shrinking pool invalid");  in shm_pool_resize()
244 	pool->new_size = size;  in shm_pool_resize()
246 	/* If the compositor has taken references on this pool it  in shm_pool_resize()
249 	 * until the compositor finishes dereferencing the pool.  in shm_pool_resize()
251 	if (pool->external_refcount == 0)  in shm_pool_resize()
252 		shm_pool_finish_resize(pool);  in shm_pool_resize()
265 	struct wl_shm_pool *pool;  in shm_create_pool()  local
275 	pool = malloc(sizeof *pool);  in shm_create_pool()
276 	if (pool == NULL) {  in shm_create_pool()
285 	pool->sigbus_is_impossible = (seals & F_SEAL_SHRINK) ? true : false;  in shm_create_pool()
287 	pool->sigbus_is_impossible = false;  in shm_create_pool()
290 	pool->internal_refcount = 1;  in shm_create_pool()
291 	pool->external_refcount = 0;  in shm_create_pool()
292 	pool->size = size;  in shm_create_pool()
293 	pool->new_size = size;  in shm_create_pool()
294 	pool->data = mmap(NULL, size,  in shm_create_pool()
296 	if (pool->data == MAP_FAILED) {  in shm_create_pool()
305 	pool->resource =  in shm_create_pool()
307 	if (!pool->resource) {  in shm_create_pool()
309 		munmap(pool->data, pool->size);  in shm_create_pool()
310 		free(pool);  in shm_create_pool()
314 	wl_resource_set_implementation(pool->resource,  in shm_create_pool()
316 				       pool, destroy_pool);  in shm_create_pool()
321 	free(pool);  in shm_create_pool()
403 	assert(buffer->pool);  in wl_shm_buffer_get_data()
405 	if (!buffer->pool)  in wl_shm_buffer_get_data()
408 	if (buffer->pool->external_refcount &&  in wl_shm_buffer_get_data()
409 	    (buffer->pool->size != buffer->pool->new_size))  in wl_shm_buffer_get_data()
410 		wl_log("Buffer address requested when its parent pool "  in wl_shm_buffer_get_data()
413 	return buffer->pool->data + buffer->offset;  in wl_shm_buffer_get_data()
443  * of the pool.
451 	assert(buffer->pool->internal_refcount +  in wl_shm_buffer_ref_pool()
452 	       buffer->pool->external_refcount);  in wl_shm_buffer_ref_pool()
454 	buffer->pool->external_refcount++;  in wl_shm_buffer_ref_pool()
455 	return buffer->pool;  in wl_shm_buffer_ref_pool()
460  * \param pool The pool object
466  * the pool will be automatically destroyed when appropriate.
472 wl_shm_pool_unref(struct wl_shm_pool *pool)  in wl_shm_pool_unref()  argument
474 	shm_pool_unref(pool, true);  in wl_shm_pool_unref()
481 	 * the pool then we'll uninstall the signal handler so we can  in reraise_sigbus()
492 	struct wl_shm_pool *pool;  in sigbus_handler()  local
499 	pool = sigbus_data->current_pool;  in sigbus_handler()
502 	 * the pool then the error is a real problem so we'll reraise  in sigbus_handler()
504 	if (pool == NULL ||  in sigbus_handler()
505 	    (char *) info->si_addr < pool->data ||  in sigbus_handler()
506 	    (char *) info->si_addr >= pool->data + pool->size) {  in sigbus_handler()
514 	if (mmap(pool->data, pool->size,  in sigbus_handler()
567  * the SHM pool of the given buffer then the client will be sent an
585 	struct wl_shm_pool *pool = buffer->pool;  in wl_shm_buffer_begin_access()  local
588 	if (pool->sigbus_is_impossible)  in wl_shm_buffer_begin_access()
603 	       sigbus_data->current_pool == pool);  in wl_shm_buffer_begin_access()
605 	sigbus_data->current_pool = pool;  in wl_shm_buffer_begin_access()
623 	struct wl_shm_pool *pool = buffer->pool;  in wl_shm_buffer_end_access()  local
626 	if (pool->sigbus_is_impossible)  in wl_shm_buffer_end_access()