52 lines
1.2 KiB
C
52 lines
1.2 KiB
C
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/*
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* WASM implementation of libcontext using Emscripten Asyncify
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*
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* This header provides WASM-specific definitions for the libcontext API.
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* The implementation uses Emscripten's Asyncify feature to implement
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* fiber-like context switching in WebAssembly.
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*
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* Asyncify works by:
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* 1. Instrumenting the WASM code to save/restore the call stack
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* 2. Allowing execution to suspend at any point
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* 3. Resuming execution from where it was suspended
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*
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* This is used by KiCad's router for coroutine-based routing.
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*/
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#ifndef LIBCONTEXT_WASM_H
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#define LIBCONTEXT_WASM_H
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#include <cstddef>
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#include <cstdint>
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// Define WASM platform
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#define LIBCONTEXT_PLATFORM_wasm
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#define LIBCONTEXT_CALL_CONVENTION
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#ifdef __cplusplus
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namespace libcontext {
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#endif
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typedef void* fcontext_t;
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#ifdef __cplusplus
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extern "C" {
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#endif
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void LIBCONTEXT_CALL_CONVENTION release_fcontext( fcontext_t ctx );
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intptr_t LIBCONTEXT_CALL_CONVENTION jump_fcontext( fcontext_t* ofc, fcontext_t nfc,
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intptr_t vp, bool preserve_fpu = true );
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fcontext_t LIBCONTEXT_CALL_CONVENTION make_fcontext( void* sp, size_t size,
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void (* fn)( intptr_t ) );
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#ifdef __cplusplus
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} // extern "C"
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#endif
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#ifdef __cplusplus
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} // namespace libcontext
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#endif
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#endif // LIBCONTEXT_WASM_H
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