76 lines
2.1 KiB
C
76 lines
2.1 KiB
C
// https://github.com/bytecodealliance/wasm-micro-runtime/blob/WAMR-2.4.4/doc/embed_wamr.md
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// #include <stdio.h>
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#include <string.h>
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#include "lib.c"
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// #include "bh_read_file.h"
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#include "bh_platform.h"
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#include "wasm_export.h"
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#include "__WASM_ARRAY_FILE__"
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#define STACK_SIZE (8 * 1024)
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#define HEAP_SIZE (8 * 1024)
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// TODO: Set this up so the lsp actually finds the includes...
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MAIN() {
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char error_buf[128];
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wasm_module_t module;
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wasm_module_inst_t module_inst;
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wasm_function_inst_t func;
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wasm_exec_env_t exec_env;
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uint32 stack_size = 8 * 1024;
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uint32 heap_size = 8 * 1024;
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/* initialize the wasm runtime */
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RuntimeInitArgs init_args;
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memset(&init_args, 0, sizeof(init_args));
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init_args.mem_alloc_type = Alloc_With_System_Allocator;
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if (!wasm_runtime_full_init(&init_args)) {
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return;
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}
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/* parse the WASM file from buffer and create a WASM module */
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module = wasm_runtime_load(__WASM_ARRAY__, __WASM_ARRAY_LEN__, error_buf,
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sizeof(error_buf));
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/* create an instance of the WASM module (WASM linear memory is ready) */
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module_inst = wasm_runtime_instantiate(module, stack_size, heap_size,
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error_buf, sizeof(error_buf));
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/* lookup a WASM function by its name, the function signature can NULL here */
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func = wasm_runtime_lookup_function(module_inst, "wasm_module");
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/* create an execution environment to execute arbitrary WASM functions */
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exec_env = wasm_runtime_create_exec_env(module_inst, stack_size);
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/* arguments are always transferred in 32-bit element */
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uint32 args[1];
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/* call an arbitrary WASM function */
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MARKER(start_trace);
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if (!wasm_runtime_call_wasm(exec_env, func, 0, args)) {
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/* function wasn't called correctly */
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POSIX_PRINTF("Failed to call function 'wasm_module'!\n");
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}
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MARKER(stop_trace);
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POSIX_PRINTF("Sum: %d\n!", args[0]);
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/* the return value is stored in args[0] */
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if (args[0] == 100) {
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MARKER(ok_marker);
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} else {
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MARKER(fail_marker);
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}
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wasm_runtime_destroy_exec_env(exec_env);
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wasm_runtime_deinstantiate(module_inst);
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wasm_runtime_unload(module);
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wasm_runtime_destroy();
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}
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