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22f714585b
Add a 'GenodeEnv' type and a 'componentConstructHook' to the system module. The 'componentConstructHook' allows for detection of POSIX style programs that exit implicitly or native Genode components that initialize to serve RPC requests and OS signals. This hook takes a 'GenodeEnv' argument so that the environment interface is passed cleanly to application code after globals are initialized. This is an typed pointer to a C++ object, procedures for accessing the environment will be available from a Nimble library and not included in the standard library. The standard library has an internal pointer to the environment object but this is not for external use, the undocumented global environment pointer has been removed.
30 lines
829 B
Nim
30 lines
829 B
Nim
#
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#
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# Nim's Runtime Library
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# (c) Copyright 2018 Emery Hemingway
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#
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# See the file "copying.txt", included in this
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# distribution, for details about the copyright.
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#
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#
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# This file contains the minimum required definitions
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# for interacting with the initial Genode environment.
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# It is reserved for use only within the standard
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# library. See ``componentConstructHook`` in the system
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# module for accessing the Genode environment after the
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# standard library has finished initializating.
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#
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when not defined(genode):
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{.error: "Genode only include".}
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type
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GenodeEnvObj {.importcpp: "Genode::Env", header: "<base/env.h>", pure.} = object
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GenodeEnvPtr = ptr GenodeEnvObj
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const runtimeEnvSym = "nim_runtime_env"
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when not defined(nimscript):
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var runtimeEnv {.importcpp: runtimeEnvSym.}: GenodeEnvPtr
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