Implement module instance context APIs (#2436)

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

View File

@ -80,9 +80,6 @@ thread_spawn_wrapper(wasm_exec_env_t exec_env, uint32 start_arg)
int32 thread_id;
uint32 stack_size = 8192;
int32 ret = -1;
#if WASM_ENABLE_LIBC_WASI != 0
WASIContext *wasi_ctx;
#endif
bh_assert(module);
bh_assert(module_inst);
@ -99,11 +96,7 @@ thread_spawn_wrapper(wasm_exec_env_t exec_env, uint32 start_arg)
if (!(wasm_cluster_dup_c_api_imports(new_module_inst, module_inst)))
goto thread_preparation_fail;
#if WASM_ENABLE_LIBC_WASI != 0
wasi_ctx = wasm_runtime_get_wasi_ctx(module_inst);
if (wasi_ctx)
wasm_runtime_set_wasi_ctx(new_module_inst, wasi_ctx);
#endif
wasm_native_inherit_contexts(new_module_inst, module_inst);
start_func = wasm_runtime_lookup_function(new_module_inst,
THREAD_START_FUNCTION, NULL);