harmony 鸿蒙Process Model Overview (FA Model)
Process Model Overview (FA Model)
The OpenHarmony process model is shown below.
All PageAbility, ServiceAbility, DataAbility, and FormAbility components of an application (with the same bundle name) run in the same process, which is Main process in green in the figure.
WebView has an independent render process, which is Render process in yellow in the figure.
Figure 1 Process model
OpenHarmony provides two inter-process communication (IPC) mechanisms.
Common Events: This mechanism is used in one-to-many communication scenarios. Multiple subscribers may receive events at the same time.
Background Services: This mechanism is implemented through ServiceAbility.
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