3034d9d76f
- Add build environment setup (scripts/common/env.sh, versions.sh, functions.sh) - Add dependency build scripts for Zstd, GLM, FreeType, HarfBuzz, Pixman, Cairo - Add placeholder scripts for OpenCASCADE, ngspice, protobuf - Add WASM compatibility layer (wasm/kiplatform/, wasm/libcontext/) - Add CMake modules for KiCad WASM cross-compilation - Add PCBnew test infrastructure (tests/kicad/) - Add build plan documentation Successfully tested builds: Zstd 1.5.5, GLM 0.9.9.8, FreeType 2.13.2, HarfBuzz 8.3.0, Pixman 0.42.2, Cairo 1.18.0 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com>
52 lines
1.2 KiB
C++
52 lines
1.2 KiB
C++
/*
|
|
* WASM implementation of libcontext using Emscripten Asyncify
|
|
*
|
|
* This header provides WASM-specific definitions for the libcontext API.
|
|
* The implementation uses Emscripten's Asyncify feature to implement
|
|
* fiber-like context switching in WebAssembly.
|
|
*
|
|
* Asyncify works by:
|
|
* 1. Instrumenting the WASM code to save/restore the call stack
|
|
* 2. Allowing execution to suspend at any point
|
|
* 3. Resuming execution from where it was suspended
|
|
*
|
|
* This is used by KiCad's router for coroutine-based routing.
|
|
*/
|
|
|
|
#ifndef LIBCONTEXT_WASM_H
|
|
#define LIBCONTEXT_WASM_H
|
|
|
|
#include <cstddef>
|
|
#include <cstdint>
|
|
|
|
// Define WASM platform
|
|
#define LIBCONTEXT_PLATFORM_wasm
|
|
#define LIBCONTEXT_CALL_CONVENTION
|
|
|
|
#ifdef __cplusplus
|
|
namespace libcontext {
|
|
#endif
|
|
|
|
typedef void* fcontext_t;
|
|
|
|
#ifdef __cplusplus
|
|
extern "C" {
|
|
#endif
|
|
|
|
void LIBCONTEXT_CALL_CONVENTION release_fcontext( fcontext_t ctx );
|
|
|
|
intptr_t LIBCONTEXT_CALL_CONVENTION jump_fcontext( fcontext_t* ofc, fcontext_t nfc,
|
|
intptr_t vp, bool preserve_fpu = true );
|
|
|
|
fcontext_t LIBCONTEXT_CALL_CONVENTION make_fcontext( void* sp, size_t size,
|
|
void (* fn)( intptr_t ) );
|
|
|
|
#ifdef __cplusplus
|
|
} // extern "C"
|
|
#endif
|
|
|
|
#ifdef __cplusplus
|
|
} // namespace libcontext
|
|
#endif
|
|
|
|
#endif // LIBCONTEXT_WASM_H
|