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spa: libcamera: properly construct/destruct libcamera manager impl

Browse source 
Previously, the libcamera manager `impl` object was neither properly
constructed neither properly destructed. As a consequence, for example,
the shared pointers in the `devices` array weren't properly destructed,
although this has been somewhat mitigated by a previous change
that modifed `clear_devices()`.
This commit is contained in:
Barnabás Pőcze 2022-09-03 20:27:10 +02:00 • committed by Wim Taymans
parent cc229d4b05
commit 222368e562
1 changed files with 35 additions and 29 deletions
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64
spa/plugins/libcamera/libcamera-manager.cpp
View file

@ -54,6 +54,8 @@ using namespace libcamera;
#define MAX_DEVICES 64 #define MAX_DEVICES 64
namespace {
struct global { struct global {
int ref; int ref;
CameraManager *manager; CameraManager *manager;
@ -68,23 +70,27 @@ struct device {
typedef struct impl { typedef struct impl {
struct spa_handle handle; struct spa_handle handle;
struct spa_device device; struct spa_device device = {};
struct spa_log *log; struct spa_log *log;
struct spa_hook_list hooks; struct spa_hook_list hooks;
uint64_t info_all; static constexpr uint64_t info_all = SPA_DEVICE_CHANGE_MASK_FLAGS | SPA_DEVICE_CHANGE_MASK_PROPS;
struct spa_device_info info; struct spa_device_info info = SPA_DEVICE_INFO_INIT();
CameraManager *manager; CameraManager *manager = nullptr;
void addCamera(std::shared_ptr<libcamera::Camera> camera); void addCamera(std::shared_ptr<libcamera::Camera> camera);
void removeCamera(std::shared_ptr<libcamera::Camera> camera); void removeCamera(std::shared_ptr<libcamera::Camera> camera);
struct device devices[MAX_DEVICES]; struct device devices[MAX_DEVICES];
uint32_t n_devices; uint32_t n_devices = 0;
impl(spa_log *log);
} Impl; } Impl;
}
int libcamera_manager_release(CameraManager *manager) int libcamera_manager_release(CameraManager *manager)
{ {
if (global.manager != manager) if (global.manager != manager)
@ -326,14 +332,32 @@ static int impl_get_interface(struct spa_handle *handle, const char *type, void
static int impl_clear(struct spa_handle *handle) static int impl_clear(struct spa_handle *handle)
{ {
struct impl *impl = (struct impl *) handle; auto impl = reinterpret_cast<struct impl *>(handle);
auto manager = impl->manager;
stop_monitor(impl); stop_monitor(impl);
if (impl->manager) std::destroy_at(impl);
libcamera_manager_release(impl->manager);
impl->manager = NULL; if (manager)
libcamera_manager_release(manager);
return 0; return 0;
} }
impl::impl(spa_log *log)
: handle({ SPA_VERSION_HANDLE, impl_get_interface, impl_clear }),
log(log)
{
libcamera_log_topic_init(log);
spa_hook_list_init(&hooks);
device.iface = SPA_INTERFACE_INIT(
SPA_TYPE_INTERFACE_Device,
SPA_VERSION_DEVICE,
&impl_device, this);
}
static size_t static size_t
impl_get_size(const struct spa_handle_factory *factory, impl_get_size(const struct spa_handle_factory *factory,
const struct spa_dict *params) const struct spa_dict *params)
@ -348,30 +372,12 @@ impl_init(const struct spa_handle_factory *factory,
const struct spa_support *support, const struct spa_support *support,
uint32_t n_support) uint32_t n_support)
{ {
struct impl *impl;
spa_return_val_if_fail(factory != NULL, -EINVAL); spa_return_val_if_fail(factory != NULL, -EINVAL);
spa_return_val_if_fail(handle != NULL, -EINVAL); spa_return_val_if_fail(handle != NULL, -EINVAL);
handle->get_interface = impl_get_interface; auto log = static_cast<spa_log *>(spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log));
handle->clear = impl_clear;
impl = (struct impl *) handle; new (handle) impl(log);
impl->log = (struct spa_log*)spa_support_find(support, n_support, SPA_TYPE_INTERFACE_Log);
libcamera_log_topic_init(impl->log);
spa_hook_list_init(&impl->hooks);
impl->device.iface = SPA_INTERFACE_INIT(
SPA_TYPE_INTERFACE_Device,
SPA_VERSION_DEVICE,
&impl_device, impl);
impl->info = SPA_DEVICE_INFO_INIT();
impl->info_all = SPA_DEVICE_CHANGE_MASK_FLAGS |
SPA_DEVICE_CHANGE_MASK_PROPS;
impl->info.flags = 0;
return 0; return 0;
} }