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Services are an abstraction of ports and are the commonly used way of inter-process communication outside of the kernel. While handles of regular ports are retrieved from [[SVC]](svcConnectToPort), service handles are retrieved through the port ''srv:'' ("service manager").
Services are an abstraction of ports and are the commonly used way of inter-process communication outside of the kernel. While handles of regular ports are retrieved from [[SVC]](svcConnectToPort), service handles are retrieved through the port ''srv:'' ("service manager").
When a service is registered, [[SVC|svcCreatePort]] is used without a port-name. This means that the port is inaccessible via the port SVCs outside of sm-module. See below for getting a session handle for sending commands to services.
Processes with PID less than or equal to the number of NATIVE_FIRM built-in modules (fs, sm, pm, pxi, ldr) have access to all services.
Processes with PID less than or equal to the number of NATIVE_FIRM built-in modules (fs, sm, pm, pxi, ldr) have access to all services.
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| GetServiceSessionHandle(8-byte servicename, u32 strlen, u32 flags). Flags bit0: if not set, return port-handle instead of session-handle when session-handle unavailable (max sessions/timeout?).
| GetServiceSessionHandle(8-byte servicename, u32 strlen, u32 flags). Flags bit0: if not set, return port-handle instead of session-handle(from [[SVC|svcCreateSessionToPort]]) when session-handle unavailable (max sessions/timeout?).
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