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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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55
core/iwasm/common/wasm_runtime_common.c
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@ -3311,27 +3311,6 @@ wasm_runtime_get_wasi_exit_code(WASMModuleInstanceCommon *module_inst)
#endif
return wasi_ctx->exit_code;
}
WASIContext *
wasm_runtime_get_wasi_ctx(WASMModuleInstanceCommon *module_inst_comm)
{
WASMModuleInstance *module_inst = (WASMModuleInstance *)module_inst_comm;
bh_assert(module_inst_comm->module_type == Wasm_Module_Bytecode
|| module_inst_comm->module_type == Wasm_Module_AoT);
return module_inst->wasi_ctx;
}
void
wasm_runtime_set_wasi_ctx(WASMModuleInstanceCommon *module_inst_comm,
WASIContext *wasi_ctx)
{
WASMModuleInstance *module_inst = (WASMModuleInstance *)module_inst_comm;
bh_assert(module_inst_comm->module_type == Wasm_Module_Bytecode
|| module_inst_comm->module_type == Wasm_Module_AoT);
module_inst->wasi_ctx = wasi_ctx;
}
#endif /* end of WASM_ENABLE_LIBC_WASI */
WASMModuleCommon *
@ -5681,3 +5660,37 @@ wasm_runtime_is_import_global_linked(const char *module_name,
return false;
#endif
}
#if WASM_ENABLE_MODULE_INST_CONTEXT != 0
void *
wasm_runtime_create_context_key(void (*dtor)(WASMModuleInstanceCommon *inst,
void *ctx))
{
return wasm_native_create_context_key(dtor);
}
void
wasm_runtime_destroy_context_key(void *key)
{
wasm_native_destroy_context_key(key);
}
void
wasm_runtime_set_context(WASMModuleInstanceCommon *inst, void *key, void *ctx)
{
wasm_native_set_context(inst, key, ctx);
}
void
wasm_runtime_set_context_spread(WASMModuleInstanceCommon *inst, void *key,
void *ctx)
{
wasm_native_set_context_spread(inst, key, ctx);
}
void *
wasm_runtime_get_context(WASMModuleInstanceCommon *inst, void *key)
{
return wasm_native_get_context(inst, key);
}
#endif /* WASM_ENABLE_MODULE_INST_CONTEXT != 0 */