Remove unnecessary functions and implement more APIs: - wasm_##name##same - wasm##name##as_ref - wasm_ref_as##name## - wasm_ref_delete - wasm_module_validate - wasm_table_get/set/size - wasm_memory_size - wasm_config_new - wasm_foreign_new And add more wasm-c-api samples, update the related documen, add more CI rules. Signed-off-by: Wenyong Huang <wenyong.huang@intel.com>
This commit is contained in:
Wenyong Huang
263
samples/wasm-c-api/src/hostref.c
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263
samples/wasm-c-api/src/hostref.c
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <inttypes.h>
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#include "wasm_c_api.h"
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#define own
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// A function to be called from Wasm code.
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own wasm_trap_t* callback(
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const wasm_val_t args[], wasm_val_t results[]
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) {
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printf("Calling back...\n> ");
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printf("> %p\n",
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args[0].of.ref ? wasm_ref_get_host_info(args[0].of.ref) : NULL);
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wasm_val_copy(&results[0], &args[0]);
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return NULL;
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}
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wasm_func_t* get_export_func(const wasm_extern_vec_t* exports, size_t i) {
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if (exports->size <= i || !wasm_extern_as_func(exports->data[i])) {
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printf("> Error accessing function export %zu!\n", i);
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exit(1);
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}
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return wasm_extern_as_func(exports->data[i]);
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}
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wasm_global_t* get_export_global(const wasm_extern_vec_t* exports, size_t i) {
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if (exports->size <= i || !wasm_extern_as_global(exports->data[i])) {
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printf("> Error accessing global export %zu!\n", i);
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exit(1);
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}
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return wasm_extern_as_global(exports->data[i]);
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}
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wasm_table_t* get_export_table(const wasm_extern_vec_t* exports, size_t i) {
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if (exports->size <= i || !wasm_extern_as_table(exports->data[i])) {
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printf("> Error accessing table export %zu!\n", i);
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exit(1);
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}
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return wasm_extern_as_table(exports->data[i]);
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}
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own wasm_ref_t* call_v_r(const wasm_func_t* func) {
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printf("call_v_r... "); fflush(stdout);
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wasm_val_t rs[] = { WASM_INIT_VAL };
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if (wasm_func_call(func, NULL, rs)) {
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printf("> Error calling function!\n");
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exit(1);
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}
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printf("okay\n");
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return rs[0].of.ref;
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}
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void call_r_v(const wasm_func_t* func, wasm_ref_t* ref) {
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printf("call_r_v... "); fflush(stdout);
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wasm_val_t vs[1] = { WASM_REF_VAL(ref) };
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if (wasm_func_call(func, vs, NULL)) {
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printf("> Error calling function!\n");
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exit(1);
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}
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printf("okay\n");
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}
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own wasm_ref_t* call_r_r(const wasm_func_t* func, wasm_ref_t* ref) {
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printf("call_r_r... "); fflush(stdout);
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wasm_val_t vs[1] = { WASM_REF_VAL(ref) };
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wasm_val_t rs[1] = { WASM_INIT_VAL };
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if (wasm_func_call(func, vs, rs)) {
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printf("> Error calling function!\n");
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exit(1);
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}
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printf("okay\n");
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return rs[0].of.ref;
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}
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void call_ir_v(const wasm_func_t* func, int32_t i, wasm_ref_t* ref) {
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printf("call_ir_v... "); fflush(stdout);
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wasm_val_t vs[2] = { WASM_I32_VAL(i), WASM_REF_VAL(ref) };
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if (wasm_func_call(func, vs, NULL)) {
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printf("> Error calling function!\n");
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exit(1);
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}
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printf("okay\n");
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}
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own wasm_ref_t* call_i_r(const wasm_func_t* func, int32_t i) {
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printf("call_i_r... "); fflush(stdout);
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wasm_val_t vs[1] = { WASM_I32_VAL(i) };
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wasm_val_t rs[1] = { WASM_INIT_VAL };
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if (wasm_func_call(func, vs, rs)) {
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printf("> Error calling function!\n");
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exit(1);
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}
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printf("okay\n");
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return rs[0].of.ref;
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}
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void
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check(own wasm_ref_t *actual, const wasm_ref_t *expected, bool release_ref)
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{
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if (actual != expected
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&& !(actual && expected && wasm_ref_same(actual, expected))) {
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printf("> Error reading reference, expected %p, got %p\n",
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expected ? wasm_ref_get_host_info(expected) : NULL,
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actual ? wasm_ref_get_host_info(actual) : NULL);
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exit(1);
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}
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if (release_ref && actual)
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wasm_ref_delete(actual);
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}
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int main(int argc, const char* argv[]) {
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// Initialize.
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printf("Initializing...\n");
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wasm_engine_t* engine = wasm_engine_new();
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wasm_store_t* store = wasm_store_new(engine);
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// Load binary.
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printf("Loading binary...\n");
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#if WASM_ENABLE_AOT != 0 && WASM_ENABLE_INTERP == 0
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FILE* file = fopen("hostref.aot", "rb");
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#else
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FILE* file = fopen("hostref.wasm", "rb");
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#endif
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if (!file) {
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printf("> Error loading module!\n");
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return 1;
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}
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fseek(file, 0L, SEEK_END);
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size_t file_size = ftell(file);
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fseek(file, 0L, SEEK_SET);
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wasm_byte_vec_t binary;
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wasm_byte_vec_new_uninitialized(&binary, file_size);
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if (fread(binary.data, file_size, 1, file) != 1) {
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printf("> Error loading module!\n");
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fclose(file);
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return 1;
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}
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fclose(file);
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// Compile.
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printf("Compiling module...\n");
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own wasm_module_t* module = wasm_module_new(store, &binary);
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if (!module) {
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printf("> Error compiling module!\n");
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return 1;
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}
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wasm_byte_vec_delete(&binary);
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// Create external callback function.
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printf("Creating callback...\n");
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own wasm_functype_t* callback_type = wasm_functype_new_1_1(
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wasm_valtype_new(WASM_ANYREF), wasm_valtype_new(WASM_ANYREF));
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own wasm_func_t* callback_func =
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wasm_func_new(store, callback_type, callback);
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wasm_functype_delete(callback_type);
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// Instantiate.
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printf("Instantiating module...\n");
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const wasm_extern_t* imports[] = { wasm_func_as_extern(callback_func) };
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own wasm_instance_t* instance =
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wasm_instance_new(store, module, imports, NULL);
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if (!instance) {
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printf("> Error instantiating module!\n");
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return 1;
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}
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wasm_func_delete(callback_func);
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wasm_module_delete(module);
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// Extract export.
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printf("Extracting exports...\n");
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own wasm_extern_vec_t exports;
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wasm_instance_exports(instance, &exports);
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size_t i = 0;
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wasm_global_t* global = get_export_global(&exports, i++);
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wasm_table_t* table = get_export_table(&exports, i++);
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wasm_func_t* global_set = get_export_func(&exports, i++);
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wasm_func_t* global_get = get_export_func(&exports, i++);
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wasm_func_t* table_set = get_export_func(&exports, i++);
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wasm_func_t* table_get = get_export_func(&exports, i++);
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wasm_func_t* func_call = get_export_func(&exports, i++);
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wasm_instance_delete(instance);
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// Create host references.
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printf("Creating host references...\n");
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own wasm_ref_t* host1 = wasm_foreign_as_ref(wasm_foreign_new(store));
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own wasm_ref_t* host2 = wasm_foreign_as_ref(wasm_foreign_new(store));
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wasm_ref_set_host_info(host1, (void*)1);
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wasm_ref_set_host_info(host2, (void*)2);
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// Some sanity checks.
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check(NULL, NULL, true);
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check(wasm_ref_copy(host1), host1, true);
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check(wasm_ref_copy(host2), host2, true);
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own wasm_val_t val;
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val.kind = WASM_ANYREF;
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val.of.ref = wasm_ref_copy(host1);
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check(wasm_ref_copy(val.of.ref), host1, true);
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own wasm_ref_t* ref = val.of.ref;
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check(wasm_ref_copy(ref), host1, true);
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wasm_ref_delete(val.of.ref);
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// Interact.
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printf("Accessing global...\n");
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check(call_v_r(global_get), NULL, false);
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call_r_v(global_set, host1);
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check(call_v_r(global_get), host1, false);
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call_r_v(global_set, host2);
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check(call_v_r(global_get), host2, false);
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call_r_v(global_set, NULL);
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check(call_v_r(global_get), NULL, false);
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wasm_global_get(global, &val);
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assert(val.kind == WASM_ANYREF);
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check(val.of.ref, NULL, false);
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val.of.ref = host2;
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wasm_global_set(global, &val);
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check(call_v_r(global_get), host2, false);
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wasm_global_get(global, &val);
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assert(val.kind == WASM_ANYREF);
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check(val.of.ref, host2, false);
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printf("Accessing table...\n");
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check(call_i_r(table_get, 0), NULL, false);
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check(call_i_r(table_get, 1), NULL, false);
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call_ir_v(table_set, 0, host1);
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call_ir_v(table_set, 1, host2);
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check(call_i_r(table_get, 0), host1, false);
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check(call_i_r(table_get, 1), host2, false);
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call_ir_v(table_set, 0, NULL);
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check(call_i_r(table_get, 0), NULL, false);
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check(wasm_table_get(table, 2), NULL, false);
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printf("Accessing function...\n");
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check(call_r_r(func_call, NULL), NULL, false);
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check(call_r_r(func_call, host1), host1, false);
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check(call_r_r(func_call, host2), host2, false);
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wasm_ref_delete(host1);
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wasm_ref_delete(host2);
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wasm_extern_vec_delete(&exports);
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// Shut down.
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printf("Shutting down...\n");
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wasm_store_delete(store);
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wasm_engine_delete(engine);
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// All done.
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printf("Done.\n");
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return 0;
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}
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