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Implement module instance context APIs (#2436)

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Introduce module instance context APIs which can set one or more contexts created
by the embedder for a wasm module instance:
```C
    wasm_runtime_create_context_key
    wasm_runtime_destroy_context_key
    wasm_runtime_set_context
    wasm_runtime_set_context_spread
    wasm_runtime_get_context
```

And make libc-wasi use it and set wasi context as the first context bound to the wasm
module instance.

Also add samples.

Refer to https://github.com/bytecodealliance/wasm-micro-runtime/issues/2460.
This commit is contained in:
YAMAMOTO Takashi
2023-09-07 15:54:11 +09:00
committed by GitHub
parent af2f3c8759
commit 6c846acc59
35 changed files with 1190 additions and 56 deletions
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4
core/iwasm/interpreter/wasm_runtime.c
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@ -2233,12 +2233,10 @@ wasm_deinstantiate(WASMModuleInstance *module_inst, bool is_sub_inst)
wasm_runtime_free(module_inst->e->common.c_api_func_imports);
if (!is_sub_inst) {
#if WASM_ENABLE_LIBC_WASI != 0
wasm_runtime_destroy_wasi((WASMModuleInstanceCommon *)module_inst);
#endif
#if WASM_ENABLE_WASI_NN != 0
wasi_nn_destroy(module_inst);
#endif
wasm_native_call_context_dtors((WASMModuleInstanceCommon *)module_inst);
}
wasm_runtime_free(module_inst);