Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 1 | #include "include/private/dvr/buffer_hub_queue_client.h" |
| 2 | |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 3 | #include <inttypes.h> |
| 4 | #include <log/log.h> |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 5 | #include <poll.h> |
Hendrik Wagenaar | 4d3590f | 2017-05-06 22:36:04 -0700 | [diff] [blame^] | 6 | #include <sys/epoll.h> |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 7 | |
| 8 | #include <array> |
| 9 | |
| 10 | #include <pdx/default_transport/client_channel.h> |
| 11 | #include <pdx/default_transport/client_channel_factory.h> |
| 12 | #include <pdx/file_handle.h> |
| 13 | #include <private/dvr/bufferhub_rpc.h> |
| 14 | |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 15 | #define RETRY_EINTR(fnc_call) \ |
| 16 | ([&]() -> decltype(fnc_call) { \ |
| 17 | decltype(fnc_call) result; \ |
| 18 | do { \ |
| 19 | result = (fnc_call); \ |
| 20 | } while (result == -1 && errno == EINTR); \ |
| 21 | return result; \ |
| 22 | })() |
| 23 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 24 | using android::pdx::ErrorStatus; |
| 25 | using android::pdx::LocalChannelHandle; |
| 26 | using android::pdx::Status; |
| 27 | |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 28 | namespace android { |
| 29 | namespace dvr { |
| 30 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 31 | BufferHubQueue::BufferHubQueue(LocalChannelHandle channel_handle) |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 32 | : Client{pdx::default_transport::ClientChannel::Create( |
| 33 | std::move(channel_handle))}, |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 34 | meta_size_(0), |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 35 | buffers_(BufferHubQueue::kMaxQueueCapacity), |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 36 | epollhup_pending_(BufferHubQueue::kMaxQueueCapacity, false), |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 37 | available_buffers_(BufferHubQueue::kMaxQueueCapacity), |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 38 | fences_(BufferHubQueue::kMaxQueueCapacity), |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 39 | capacity_(0), |
| 40 | id_(-1) { |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 41 | Initialize(); |
| 42 | } |
| 43 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 44 | BufferHubQueue::BufferHubQueue(const std::string& endpoint_path) |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 45 | : Client{pdx::default_transport::ClientChannelFactory::Create( |
| 46 | endpoint_path)}, |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 47 | meta_size_(0), |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 48 | buffers_(BufferHubQueue::kMaxQueueCapacity), |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 49 | epollhup_pending_(BufferHubQueue::kMaxQueueCapacity, false), |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 50 | available_buffers_(BufferHubQueue::kMaxQueueCapacity), |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 51 | fences_(BufferHubQueue::kMaxQueueCapacity), |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 52 | capacity_(0), |
| 53 | id_(-1) { |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 54 | Initialize(); |
| 55 | } |
| 56 | |
| 57 | void BufferHubQueue::Initialize() { |
| 58 | int ret = epoll_fd_.Create(); |
| 59 | if (ret < 0) { |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 60 | ALOGE("BufferHubQueue::BufferHubQueue: Failed to create epoll fd: %s", |
| 61 | strerror(-ret)); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 62 | return; |
| 63 | } |
| 64 | |
| 65 | epoll_event event = {.events = EPOLLIN | EPOLLET, |
| 66 | .data = {.u64 = static_cast<uint64_t>( |
| 67 | BufferHubQueue::kEpollQueueEventIndex)}}; |
| 68 | ret = epoll_fd_.Control(EPOLL_CTL_ADD, event_fd(), &event); |
| 69 | if (ret < 0) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 70 | ALOGE("BufferHubQueue::Initialize: Failed to add event fd to epoll set: %s", |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 71 | strerror(-ret)); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 72 | } |
| 73 | } |
| 74 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 75 | Status<void> BufferHubQueue::ImportQueue() { |
| 76 | auto status = InvokeRemoteMethod<BufferHubRPC::GetQueueInfo>(); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 77 | if (!status) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 78 | ALOGE("BufferHubQueue::ImportQueue: Failed to import queue: %s", |
| 79 | status.GetErrorMessage().c_str()); |
| 80 | return ErrorStatus(status.error()); |
| 81 | } else { |
| 82 | SetupQueue(status.get().meta_size_bytes, status.get().id); |
| 83 | return {}; |
| 84 | } |
| 85 | } |
| 86 | |
| 87 | void BufferHubQueue::SetupQueue(size_t meta_size_bytes, int id) { |
| 88 | meta_size_ = meta_size_bytes; |
| 89 | id_ = id; |
| 90 | meta_buffer_tmp_.reset(meta_size_ > 0 ? new uint8_t[meta_size_] : nullptr); |
| 91 | } |
| 92 | |
| 93 | std::unique_ptr<ConsumerQueue> BufferHubQueue::CreateConsumerQueue() { |
| 94 | if (auto status = CreateConsumerQueueHandle()) |
| 95 | return std::unique_ptr<ConsumerQueue>(new ConsumerQueue(status.take())); |
| 96 | else |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 97 | return nullptr; |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 98 | } |
| 99 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 100 | std::unique_ptr<ConsumerQueue> BufferHubQueue::CreateSilentConsumerQueue() { |
| 101 | if (auto status = CreateConsumerQueueHandle()) |
| 102 | return std::unique_ptr<ConsumerQueue>( |
| 103 | new ConsumerQueue(status.take(), true)); |
| 104 | else |
| 105 | return nullptr; |
| 106 | } |
| 107 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 108 | Status<LocalChannelHandle> BufferHubQueue::CreateConsumerQueueHandle() { |
| 109 | auto status = InvokeRemoteMethod<BufferHubRPC::CreateConsumerQueue>(); |
| 110 | if (!status) { |
| 111 | ALOGE( |
| 112 | "BufferHubQueue::CreateConsumerQueue: Failed to create consumer queue: " |
| 113 | "%s", |
| 114 | status.GetErrorMessage().c_str()); |
| 115 | return ErrorStatus(status.error()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 116 | } |
| 117 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 118 | return status; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 119 | } |
| 120 | |
| 121 | bool BufferHubQueue::WaitForBuffers(int timeout) { |
| 122 | std::array<epoll_event, kMaxEvents> events; |
| 123 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 124 | // Loop at least once to check for hangups. |
| 125 | do { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 126 | ALOGD_IF( |
| 127 | TRACE, |
| 128 | "BufferHubQueue::WaitForBuffers: queue_id=%d count=%zu capacity=%zu", |
| 129 | id(), count(), capacity()); |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 130 | |
| 131 | // If there is already a buffer then just check for hangup without waiting. |
| 132 | const int ret = epoll_fd_.Wait(events.data(), events.size(), |
| 133 | count() == 0 ? timeout : 0); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 134 | |
| 135 | if (ret == 0) { |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 136 | ALOGI_IF(TRACE, |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 137 | "BufferHubQueue::WaitForBuffers: No events before timeout: " |
| 138 | "queue_id=%d", |
| 139 | id()); |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 140 | return count() != 0; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 141 | } |
| 142 | |
| 143 | if (ret < 0 && ret != -EINTR) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 144 | ALOGE("BufferHubQueue::WaitForBuffers: Failed to wait for buffers: %s", |
| 145 | strerror(-ret)); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 146 | return false; |
| 147 | } |
| 148 | |
| 149 | const int num_events = ret; |
| 150 | |
| 151 | // A BufferQueue's epoll fd tracks N+1 events, where there are N events, |
| 152 | // one for each buffer, in the queue and one extra event for the queue |
| 153 | // client itself. |
| 154 | for (int i = 0; i < num_events; i++) { |
| 155 | int64_t index = static_cast<int64_t>(events[i].data.u64); |
| 156 | |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 157 | ALOGD_IF(TRACE, |
| 158 | "BufferHubQueue::WaitForBuffers: event %d: index=%" PRId64, i, |
| 159 | index); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 160 | |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 161 | if (is_buffer_event_index(index)) { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 162 | HandleBufferEvent(static_cast<size_t>(index), events[i].events); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 163 | } else if (is_queue_event_index(index)) { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 164 | HandleQueueEvent(events[i].events); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 165 | } else { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 166 | ALOGW("BufferHubQueue::WaitForBuffers: Unknown event index: %" PRId64, |
| 167 | index); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 168 | } |
| 169 | } |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 170 | } while (count() == 0 && capacity() > 0 && !hung_up()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 171 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 172 | return count() != 0; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 173 | } |
| 174 | |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 175 | void BufferHubQueue::HandleBufferEvent(size_t slot, int poll_events) { |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 176 | auto buffer = buffers_[slot]; |
| 177 | if (!buffer) { |
| 178 | ALOGW("BufferHubQueue::HandleBufferEvent: Invalid buffer slot: %zu", slot); |
| 179 | return; |
| 180 | } |
| 181 | |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 182 | auto status = buffer->GetEventMask(poll_events); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 183 | if (!status) { |
| 184 | ALOGW("BufferHubQueue::HandleBufferEvent: Failed to get event mask: %s", |
| 185 | status.GetErrorMessage().c_str()); |
| 186 | return; |
| 187 | } |
| 188 | |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 189 | const int events = status.get(); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 190 | if (events & EPOLLIN) { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 191 | const int ret = OnBufferReady(buffer, &fences_[slot]); |
| 192 | if (ret == 0 || ret == -EALREADY || ret == -EBUSY) { |
| 193 | // Only enqueue the buffer if it moves to or is already in the state |
| 194 | // requested in OnBufferReady(). If the buffer is busy this means that the |
| 195 | // buffer moved from released to posted when a new consumer was created |
| 196 | // before the ProducerQueue had a chance to regain it. This is a valid |
| 197 | // transition that we have to handle because edge triggered poll events |
| 198 | // latch the ready state even if it is later de-asserted -- don't enqueue |
| 199 | // or print an error log in this case. |
| 200 | if (ret != -EBUSY) |
| 201 | Enqueue(buffer, slot); |
| 202 | } else { |
| 203 | ALOGE( |
| 204 | "BufferHubQueue::HandleBufferEvent: Failed to set buffer ready, " |
| 205 | "queue_id=%d buffer_id=%d: %s", |
| 206 | id(), buffer->id(), strerror(-ret)); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 207 | } |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 208 | } else if (events & EPOLLHUP) { |
| 209 | // This might be caused by producer replacing an existing buffer slot, or |
| 210 | // when BufferHubQueue is shutting down. For the first case, currently the |
| 211 | // epoll FD is cleaned up when the replacement consumer client is imported, |
| 212 | // we shouldn't detach again if |epollhub_pending_[slot]| is set. |
| 213 | ALOGW( |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 214 | "BufferHubQueue::HandleBufferEvent: Received EPOLLHUP at slot: %zu, " |
| 215 | "buffer event fd: %d, EPOLLHUP pending: %d", |
Alex Vakulenko | a1336cf | 2017-03-31 08:29:28 -0700 | [diff] [blame] | 216 | slot, buffer->event_fd(), int{epollhup_pending_[slot]}); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 217 | if (epollhup_pending_[slot]) { |
| 218 | epollhup_pending_[slot] = false; |
| 219 | } else { |
| 220 | DetachBuffer(slot); |
| 221 | } |
| 222 | } else { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 223 | ALOGW( |
| 224 | "BufferHubQueue::HandleBufferEvent: Unknown event, slot=%zu, epoll " |
| 225 | "events=%d", |
| 226 | slot, events); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 227 | } |
| 228 | } |
| 229 | |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 230 | void BufferHubQueue::HandleQueueEvent(int poll_event) { |
| 231 | auto status = GetEventMask(poll_event); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 232 | if (!status) { |
| 233 | ALOGW("BufferHubQueue::HandleQueueEvent: Failed to get event mask: %s", |
| 234 | status.GetErrorMessage().c_str()); |
| 235 | return; |
| 236 | } |
| 237 | |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 238 | const int events = status.get(); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 239 | if (events & EPOLLIN) { |
| 240 | // Note that after buffer imports, if |count()| still returns 0, epoll |
| 241 | // wait will be tried again to acquire the newly imported buffer. |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 242 | auto buffer_status = OnBufferAllocated(); |
| 243 | if (!buffer_status) { |
| 244 | ALOGE("BufferHubQueue::HandleQueueEvent: Failed to import buffer: %s", |
| 245 | buffer_status.GetErrorMessage().c_str()); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 246 | } |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 247 | } else if (events & EPOLLHUP) { |
| 248 | ALOGD_IF(TRACE, "BufferHubQueue::HandleQueueEvent: hang up event!"); |
| 249 | hung_up_ = true; |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 250 | } else { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 251 | ALOGW("BufferHubQueue::HandleQueueEvent: Unknown epoll events=%x", events); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 252 | } |
| 253 | } |
| 254 | |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 255 | int BufferHubQueue::AddBuffer(const std::shared_ptr<BufferHubBuffer>& buf, |
| 256 | size_t slot) { |
| 257 | if (is_full()) { |
| 258 | // TODO(jwcai) Move the check into Producer's AllocateBuffer and consumer's |
| 259 | // import buffer. |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 260 | ALOGE("BufferHubQueue::AddBuffer queue is at maximum capacity: %zu", |
| 261 | capacity_); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 262 | return -E2BIG; |
| 263 | } |
| 264 | |
| 265 | if (buffers_[slot] != nullptr) { |
| 266 | // Replace the buffer if the slot is preoccupied. This could happen when the |
| 267 | // producer side replaced the slot with a newly allocated buffer. Detach the |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 268 | // buffer before setting up with the new one. |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 269 | DetachBuffer(slot); |
Jiwen 'Steve' Cai | dc14e5b | 2017-01-24 17:05:12 -0800 | [diff] [blame] | 270 | epollhup_pending_[slot] = true; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 271 | } |
| 272 | |
| 273 | epoll_event event = {.events = EPOLLIN | EPOLLET, .data = {.u64 = slot}}; |
| 274 | const int ret = epoll_fd_.Control(EPOLL_CTL_ADD, buf->event_fd(), &event); |
| 275 | if (ret < 0) { |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 276 | ALOGE("BufferHubQueue::AddBuffer: Failed to add buffer to epoll set: %s", |
| 277 | strerror(-ret)); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 278 | return ret; |
| 279 | } |
| 280 | |
| 281 | buffers_[slot] = buf; |
| 282 | capacity_++; |
| 283 | return 0; |
| 284 | } |
| 285 | |
| 286 | int BufferHubQueue::DetachBuffer(size_t slot) { |
| 287 | auto& buf = buffers_[slot]; |
| 288 | if (buf == nullptr) { |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 289 | ALOGE("BufferHubQueue::DetachBuffer: Invalid slot: %zu", slot); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 290 | return -EINVAL; |
| 291 | } |
| 292 | |
| 293 | const int ret = epoll_fd_.Control(EPOLL_CTL_DEL, buf->event_fd(), nullptr); |
| 294 | if (ret < 0) { |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 295 | ALOGE( |
| 296 | "BufferHubQueue::DetachBuffer: Failed to detach buffer from epoll set: " |
| 297 | "%s", |
| 298 | strerror(-ret)); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 299 | return ret; |
| 300 | } |
| 301 | |
| 302 | buffers_[slot] = nullptr; |
| 303 | capacity_--; |
| 304 | return 0; |
| 305 | } |
| 306 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 307 | void BufferHubQueue::Enqueue(const std::shared_ptr<BufferHubBuffer>& buf, |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 308 | size_t slot) { |
| 309 | if (count() == capacity_) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 310 | ALOGE("BufferHubQueue::Enqueue: Buffer queue is full!"); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 311 | return; |
| 312 | } |
| 313 | |
| 314 | // Set slot buffer back to vector. |
| 315 | // TODO(jwcai) Here have to dynamically allocate BufferInfo::metadata due to |
| 316 | // the limitation of the RingBuffer we are using. Would be better to refactor |
| 317 | // that. |
| 318 | BufferInfo buffer_info(slot, meta_size_); |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 319 | buffer_info.buffer = buf; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 320 | // Swap metadata loaded during onBufferReady into vector. |
| 321 | std::swap(buffer_info.metadata, meta_buffer_tmp_); |
| 322 | |
| 323 | available_buffers_.Append(std::move(buffer_info)); |
| 324 | } |
| 325 | |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 326 | Status<std::shared_ptr<BufferHubBuffer>> BufferHubQueue::Dequeue( |
| 327 | int timeout, size_t* slot, void* meta, LocalHandle* fence) { |
Jiwen 'Steve' Cai | 25fd3fa | 2017-03-20 15:30:21 -0700 | [diff] [blame] | 328 | ALOGD_IF(TRACE, "Dequeue: count=%zu, timeout=%d", count(), timeout); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 329 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 330 | if (!WaitForBuffers(timeout)) |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 331 | return ErrorStatus(ETIMEDOUT); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 332 | |
| 333 | std::shared_ptr<BufferHubBuffer> buf; |
| 334 | BufferInfo& buffer_info = available_buffers_.Front(); |
| 335 | |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 336 | *fence = std::move(fences_[buffer_info.slot]); |
| 337 | |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 338 | // Report current pos as the output slot. |
| 339 | std::swap(buffer_info.slot, *slot); |
| 340 | // Swap buffer from vector to be returned later. |
| 341 | std::swap(buffer_info.buffer, buf); |
| 342 | // Swap metadata from vector into tmp so that we can write out to |meta|. |
| 343 | std::swap(buffer_info.metadata, meta_buffer_tmp_); |
| 344 | |
| 345 | available_buffers_.PopFront(); |
| 346 | |
| 347 | if (!buf) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 348 | ALOGE("BufferHubQueue::Dequeue: Buffer to be dequeued is nullptr"); |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 349 | return ErrorStatus(ENOBUFS); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 350 | } |
| 351 | |
| 352 | if (meta) { |
| 353 | std::copy(meta_buffer_tmp_.get(), meta_buffer_tmp_.get() + meta_size_, |
| 354 | reinterpret_cast<uint8_t*>(meta)); |
| 355 | } |
| 356 | |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 357 | return {std::move(buf)}; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 358 | } |
| 359 | |
| 360 | ProducerQueue::ProducerQueue(size_t meta_size) |
Jiwen 'Steve' Cai | 0057fdd | 2017-05-02 11:21:18 -0700 | [diff] [blame] | 361 | : ProducerQueue(meta_size, 0, 0, 0, 0) {} |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 362 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 363 | ProducerQueue::ProducerQueue(LocalChannelHandle handle) |
| 364 | : BASE(std::move(handle)) { |
| 365 | auto status = ImportQueue(); |
| 366 | if (!status) { |
| 367 | ALOGE("ProducerQueue::ProducerQueue: Failed to import queue: %s", |
| 368 | status.GetErrorMessage().c_str()); |
| 369 | Close(-status.error()); |
| 370 | } |
| 371 | } |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 372 | |
Jiwen 'Steve' Cai | 0057fdd | 2017-05-02 11:21:18 -0700 | [diff] [blame] | 373 | ProducerQueue::ProducerQueue(size_t meta_size, uint64_t usage_set_mask, |
| 374 | uint64_t usage_clear_mask, |
| 375 | uint64_t usage_deny_set_mask, |
| 376 | uint64_t usage_deny_clear_mask) |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 377 | : BASE(BufferHubRPC::kClientPath) { |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 378 | auto status = InvokeRemoteMethod<BufferHubRPC::CreateProducerQueue>( |
Jiwen 'Steve' Cai | 0057fdd | 2017-05-02 11:21:18 -0700 | [diff] [blame] | 379 | meta_size, UsagePolicy{usage_set_mask, usage_clear_mask, |
| 380 | usage_deny_set_mask, usage_deny_clear_mask}); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 381 | if (!status) { |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 382 | ALOGE("ProducerQueue::ProducerQueue: Failed to create producer queue: %s", |
| 383 | status.GetErrorMessage().c_str()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 384 | Close(-status.error()); |
| 385 | return; |
| 386 | } |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 387 | |
| 388 | SetupQueue(status.get().meta_size_bytes, status.get().id); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 389 | } |
| 390 | |
Corey Tabaka | cd52dd9 | 2017-04-07 18:03:57 -0700 | [diff] [blame] | 391 | int ProducerQueue::AllocateBuffer(uint32_t width, uint32_t height, |
Jiwen 'Steve' Cai | 0057fdd | 2017-05-02 11:21:18 -0700 | [diff] [blame] | 392 | uint32_t format, uint64_t usage, |
Hendrik Wagenaar | 4d3590f | 2017-05-06 22:36:04 -0700 | [diff] [blame^] | 393 | size_t* out_slot) { |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 394 | if (out_slot == nullptr) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 395 | ALOGE("ProducerQueue::AllocateBuffer: Parameter out_slot cannot be null."); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 396 | return -EINVAL; |
| 397 | } |
| 398 | |
| 399 | if (is_full()) { |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 400 | ALOGE("ProducerQueue::AllocateBuffer queue is at maximum capacity: %zu", |
| 401 | capacity()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 402 | return -E2BIG; |
| 403 | } |
| 404 | |
| 405 | const size_t kBufferCount = 1U; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 406 | Status<std::vector<std::pair<LocalChannelHandle, size_t>>> status = |
| 407 | InvokeRemoteMethod<BufferHubRPC::ProducerQueueAllocateBuffers>( |
Hendrik Wagenaar | 4d3590f | 2017-05-06 22:36:04 -0700 | [diff] [blame^] | 408 | width, height, format, usage, kBufferCount); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 409 | if (!status) { |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 410 | ALOGE("ProducerQueue::AllocateBuffer failed to create producer buffer: %s", |
| 411 | status.GetErrorMessage().c_str()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 412 | return -status.error(); |
| 413 | } |
| 414 | |
| 415 | auto buffer_handle_slots = status.take(); |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 416 | LOG_ALWAYS_FATAL_IF(buffer_handle_slots.size() != kBufferCount, |
| 417 | "BufferHubRPC::ProducerQueueAllocateBuffers should " |
| 418 | "return one and only one buffer handle."); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 419 | |
| 420 | // We only allocate one buffer at a time. |
| 421 | auto& buffer_handle = buffer_handle_slots[0].first; |
| 422 | size_t buffer_slot = buffer_handle_slots[0].second; |
Jiwen 'Steve' Cai | 25fd3fa | 2017-03-20 15:30:21 -0700 | [diff] [blame] | 423 | ALOGD_IF(TRACE, |
| 424 | "ProducerQueue::AllocateBuffer, new buffer, channel_handle: %d", |
| 425 | buffer_handle.value()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 426 | |
| 427 | *out_slot = buffer_slot; |
| 428 | return AddBuffer(BufferProducer::Import(std::move(buffer_handle)), |
| 429 | buffer_slot); |
| 430 | } |
| 431 | |
| 432 | int ProducerQueue::AddBuffer(const std::shared_ptr<BufferProducer>& buf, |
| 433 | size_t slot) { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 434 | ALOGD_IF(TRACE, "ProducerQueue::AddBuffer: queue_id=%d buffer_id=%d slot=%zu", |
| 435 | id(), buf->id(), slot); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 436 | // For producer buffer, we need to enqueue the newly added buffer |
| 437 | // immediately. Producer queue starts with all buffers in available state. |
| 438 | const int ret = BufferHubQueue::AddBuffer(buf, slot); |
| 439 | if (ret < 0) |
| 440 | return ret; |
| 441 | |
| 442 | Enqueue(buf, slot); |
| 443 | return 0; |
| 444 | } |
| 445 | |
| 446 | int ProducerQueue::DetachBuffer(size_t slot) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 447 | auto status = |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 448 | InvokeRemoteMethod<BufferHubRPC::ProducerQueueDetachBuffer>(slot); |
| 449 | if (!status) { |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 450 | ALOGE("ProducerQueue::DetachBuffer: Failed to detach producer buffer: %s", |
| 451 | status.GetErrorMessage().c_str()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 452 | return -status.error(); |
| 453 | } |
| 454 | |
| 455 | return BufferHubQueue::DetachBuffer(slot); |
| 456 | } |
| 457 | |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 458 | Status<std::shared_ptr<BufferProducer>> ProducerQueue::Dequeue( |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 459 | int timeout, size_t* slot, LocalHandle* release_fence) { |
| 460 | if (slot == nullptr || release_fence == nullptr) { |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 461 | ALOGE("ProducerQueue::Dequeue: Invalid parameter: slot=%p release_fence=%p", |
| 462 | slot, release_fence); |
| 463 | return ErrorStatus(EINVAL); |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 464 | } |
| 465 | |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 466 | auto buffer_status = |
| 467 | BufferHubQueue::Dequeue(timeout, slot, nullptr, release_fence); |
| 468 | if (!buffer_status) |
| 469 | return buffer_status.error_status(); |
| 470 | |
| 471 | return {std::static_pointer_cast<BufferProducer>(buffer_status.take())}; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 472 | } |
| 473 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 474 | int ProducerQueue::OnBufferReady(const std::shared_ptr<BufferHubBuffer>& buf, |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 475 | LocalHandle* release_fence) { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 476 | ALOGD_IF(TRACE, "ProducerQueue::OnBufferReady: queue_id=%d buffer_id=%d", |
| 477 | id(), buf->id()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 478 | auto buffer = std::static_pointer_cast<BufferProducer>(buf); |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 479 | return buffer->Gain(release_fence); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 480 | } |
| 481 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 482 | ConsumerQueue::ConsumerQueue(LocalChannelHandle handle, bool ignore_on_import) |
| 483 | : BufferHubQueue(std::move(handle)), ignore_on_import_(ignore_on_import) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 484 | auto status = ImportQueue(); |
| 485 | if (!status) { |
| 486 | ALOGE("ConsumerQueue::ConsumerQueue: Failed to import queue: %s", |
| 487 | status.GetErrorMessage().c_str()); |
| 488 | Close(-status.error()); |
| 489 | } |
| 490 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 491 | auto import_status = ImportBuffers(); |
| 492 | if (import_status) { |
| 493 | ALOGI("ConsumerQueue::ConsumerQueue: Imported %zu buffers.", |
| 494 | import_status.get()); |
| 495 | } else { |
| 496 | ALOGE("ConsumerQueue::ConsumerQueue: Failed to import buffers: %s", |
| 497 | import_status.GetErrorMessage().c_str()); |
| 498 | } |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 499 | } |
| 500 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 501 | Status<size_t> ConsumerQueue::ImportBuffers() { |
| 502 | auto status = InvokeRemoteMethod<BufferHubRPC::ConsumerQueueImportBuffers>(); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 503 | if (!status) { |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 504 | ALOGE("ConsumerQueue::ImportBuffers: Failed to import consumer buffer: %s", |
| 505 | status.GetErrorMessage().c_str()); |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 506 | return ErrorStatus(status.error()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 507 | } |
| 508 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 509 | int ret; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 510 | int last_error = 0; |
| 511 | int imported_buffers = 0; |
| 512 | |
| 513 | auto buffer_handle_slots = status.take(); |
| 514 | for (auto& buffer_handle_slot : buffer_handle_slots) { |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 515 | ALOGD_IF(TRACE, "ConsumerQueue::ImportBuffers: buffer_handle=%d", |
Jiwen 'Steve' Cai | 25fd3fa | 2017-03-20 15:30:21 -0700 | [diff] [blame] | 516 | buffer_handle_slot.first.value()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 517 | |
| 518 | std::unique_ptr<BufferConsumer> buffer_consumer = |
| 519 | BufferConsumer::Import(std::move(buffer_handle_slot.first)); |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 520 | |
| 521 | // Setup ignore state before adding buffer to the queue. |
| 522 | if (ignore_on_import_) { |
| 523 | ALOGD_IF(TRACE, |
| 524 | "ConsumerQueue::ImportBuffers: Setting buffer to ignored state: " |
| 525 | "buffer_id=%d", |
| 526 | buffer_consumer->id()); |
| 527 | ret = buffer_consumer->SetIgnore(true); |
| 528 | if (ret < 0) { |
| 529 | ALOGE( |
| 530 | "ConsumerQueue::ImportBuffers: Failed to set ignored state on " |
| 531 | "imported buffer buffer_id=%d: %s", |
| 532 | buffer_consumer->id(), strerror(-ret)); |
| 533 | last_error = ret; |
| 534 | } |
| 535 | } |
| 536 | |
| 537 | ret = AddBuffer(std::move(buffer_consumer), buffer_handle_slot.second); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 538 | if (ret < 0) { |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 539 | ALOGE("ConsumerQueue::ImportBuffers: Failed to add buffer: %s", |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 540 | strerror(-ret)); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 541 | last_error = ret; |
| 542 | continue; |
| 543 | } else { |
| 544 | imported_buffers++; |
| 545 | } |
| 546 | } |
| 547 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 548 | if (imported_buffers > 0) |
| 549 | return {imported_buffers}; |
| 550 | else |
| 551 | return ErrorStatus(-last_error); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 552 | } |
| 553 | |
| 554 | int ConsumerQueue::AddBuffer(const std::shared_ptr<BufferConsumer>& buf, |
| 555 | size_t slot) { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 556 | ALOGD_IF(TRACE, "ConsumerQueue::AddBuffer: queue_id=%d buffer_id=%d slot=%zu", |
| 557 | id(), buf->id(), slot); |
| 558 | const int ret = BufferHubQueue::AddBuffer(buf, slot); |
| 559 | if (ret < 0) |
| 560 | return ret; |
| 561 | |
| 562 | // Check to see if the buffer is already signaled. This is necessary to catch |
| 563 | // cases where buffers are already available; epoll edge triggered mode does |
| 564 | // not fire until and edge transition when adding new buffers to the epoll |
| 565 | // set. |
| 566 | const int kTimeoutMs = 0; |
| 567 | pollfd pfd{buf->event_fd(), POLLIN, 0}; |
| 568 | const int count = RETRY_EINTR(poll(&pfd, 1, kTimeoutMs)); |
| 569 | if (count < 0) { |
| 570 | const int error = errno; |
| 571 | ALOGE("ConsumerQueue::AddBuffer: Failed to poll consumer buffer: %s", |
| 572 | strerror(errno)); |
| 573 | return -error; |
| 574 | } |
| 575 | |
| 576 | if (count == 1) |
| 577 | HandleBufferEvent(slot, pfd.revents); |
| 578 | |
| 579 | return 0; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 580 | } |
| 581 | |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 582 | Status<std::shared_ptr<BufferConsumer>> ConsumerQueue::Dequeue( |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 583 | int timeout, size_t* slot, void* meta, size_t meta_size, |
| 584 | LocalHandle* acquire_fence) { |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 585 | if (meta_size != meta_size_) { |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 586 | ALOGE( |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 587 | "ConsumerQueue::Dequeue: Metadata size (%zu) for the dequeuing buffer " |
| 588 | "does not match metadata size (%zu) for the queue.", |
Alex Vakulenko | 4fe6058 | 2017-02-02 11:35:59 -0800 | [diff] [blame] | 589 | meta_size, meta_size_); |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 590 | return ErrorStatus(EINVAL); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 591 | } |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 592 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 593 | if (slot == nullptr || acquire_fence == nullptr) { |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 594 | ALOGE( |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 595 | "ConsumerQueue::Dequeue: Invalid parameter: slot=%p meta=%p " |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 596 | "acquire_fence=%p", |
| 597 | slot, meta, acquire_fence); |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 598 | return ErrorStatus(EINVAL); |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 599 | } |
| 600 | |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 601 | auto buffer_status = |
| 602 | BufferHubQueue::Dequeue(timeout, slot, meta, acquire_fence); |
| 603 | if (!buffer_status) |
| 604 | return buffer_status.error_status(); |
| 605 | |
| 606 | return {std::static_pointer_cast<BufferConsumer>(buffer_status.take())}; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 607 | } |
| 608 | |
Corey Tabaka | 8a4e6a9 | 2017-04-20 13:42:02 -0700 | [diff] [blame] | 609 | int ConsumerQueue::OnBufferReady(const std::shared_ptr<BufferHubBuffer>& buf, |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 610 | LocalHandle* acquire_fence) { |
Corey Tabaka | 2b99ee5 | 2017-05-04 10:56:05 -0700 | [diff] [blame] | 611 | ALOGD_IF(TRACE, "ConsumerQueue::OnBufferReady: queue_id=%d buffer_id=%d", |
| 612 | id(), buf->id()); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 613 | auto buffer = std::static_pointer_cast<BufferConsumer>(buf); |
Jiwen 'Steve' Cai | ed65432 | 2017-03-13 17:04:43 -0700 | [diff] [blame] | 614 | return buffer->Acquire(acquire_fence, meta_buffer_tmp_.get(), meta_size_); |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 615 | } |
| 616 | |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 617 | Status<void> ConsumerQueue::OnBufferAllocated() { |
| 618 | auto status = ImportBuffers(); |
| 619 | if (!status) { |
| 620 | ALOGE("ConsumerQueue::OnBufferAllocated: Failed to import buffers: %s", |
| 621 | status.GetErrorMessage().c_str()); |
| 622 | return ErrorStatus(status.error()); |
| 623 | } else if (status.get() == 0) { |
| 624 | ALOGW("ConsumerQueue::OnBufferAllocated: No new buffers allocated!"); |
| 625 | return ErrorStatus(ENOBUFS); |
| 626 | } else { |
Corey Tabaka | 9d8bd09 | 2017-04-25 16:47:44 -0700 | [diff] [blame] | 627 | ALOGD_IF(TRACE, |
| 628 | "ConsumerQueue::OnBufferAllocated: Imported %zu consumer buffers.", |
| 629 | status.get()); |
Corey Tabaka | 1db8a5d | 2017-03-22 02:12:52 -0700 | [diff] [blame] | 630 | return {}; |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 631 | } |
Alex Vakulenko | e4eec20 | 2017-01-27 14:41:04 -0800 | [diff] [blame] | 632 | } |
| 633 | |
| 634 | } // namespace dvr |
| 635 | } // namespace android |