SkMessageBus< Message, IDType, AllowCopyableMessage > Class Template Reference

#include <SkMessageBus.h>

Inheritance diagram for SkMessageBus< Message, IDType, AllowCopyableMessage >:

Classes
class	Inbox
struct	is_sk_sp
struct	is_sk_sp< sk_sp< T > >

Static Public Member Functions
static void	Post (Message m)

Detailed Description

template<typename Message, typename IDType, bool AllowCopyableMessage = true>
class SkMessageBus< Message, IDType, AllowCopyableMessage >

The following method must have a specialization for type 'Message':

bool SkShouldPostMessageToBus(const Message&, IDType msgBusUniqueID)

We may want to consider providing a default template implementation, to avoid this requirement by sending to all inboxes when the specialization for type 'Message' is not present.

Definition at line 30 of file SkMessageBus.h.

Member Function Documentation

Post()

template<typename Message , typename IDType , bool AllowCopyableMessage>

void SkMessageBus< Message, IDType, AllowCopyableMessage >::Post ( Message  m )

static

Definition at line 130 of file SkMessageBus.h.

                                                                          {
    auto* bus = SkMessageBus<Message, IDType, AllowCopyableMessage>::Get();
    SkAutoMutexExclusive lock(bus->fInboxesMutex);
    for (int i = 0; i < bus->fInboxes.size(); i++) {
        if (SkShouldPostMessageToBus(m, bus->fInboxes[i]->fUniqueID)) {
            if constexpr (AllowCopyableMessage) {
                bus->fInboxes[i]->receive(m);
            } else {
                if constexpr (is_sk_sp<Message>::value) {
                    SkASSERT(m->unique());
                }
                bus->fInboxes[i]->receive(std::move(m));
                break;
            }
        }
    }
 
    if constexpr (is_sk_sp<Message>::value && !AllowCopyableMessage) {
        // Make sure sk_sp has been sent to an inbox.
        SkASSERT(!m);  // NOLINT(bugprone-use-after-move)
    }
}

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The documentation for this class was generated from the following file:

• third_party/skia/src/core/SkMessageBus.h