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@@ -0,0 +1,309 @@
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+/*
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+ * Copyright (C) 2019 Intel Corporation. All rights reserved.
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+ * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
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+ */
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+
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+#include "wasm_export.h"
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+#include "bh_platform.h"
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+#include "bh_read_file.h"
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+
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+typedef struct thread_arg {
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+ bh_queue *queue;
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+ wasm_module_inst_t module_inst;
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+} thread_arg;
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+
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+static void *
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+thread1_callback(void *arg)
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+{
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+ thread_arg *targ = arg;
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+ wasm_module_inst_t module_inst = targ->module_inst;
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+ bh_queue *queue = targ->queue;
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+ wasm_exec_env_t exec_env;
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+ wasm_function_inst_t my_shared_malloc_func;
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+ wasm_function_inst_t my_shared_free_func;
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+ uint32 i, argv[2];
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+
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+ /* lookup wasm functions */
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+ if (!(my_shared_malloc_func =
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+ wasm_runtime_lookup_function(module_inst, "my_shared_malloc"))
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+ || !(my_shared_free_func =
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+ wasm_runtime_lookup_function(module_inst, "my_shared_free"))) {
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+ printf("Failed to lookup function.\n");
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+ }
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+
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+ /* create exec env */
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+ if (!(exec_env = wasm_runtime_create_exec_env(module_inst, 32768))) {
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+ printf("Failed to create exec env.\n");
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+ return NULL;
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+ }
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+
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+ /* allocate memory with wasm_runtime_shared_heap_malloc and send it
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+ to wasm app2 */
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+ for (i = 0; i < 5; i++) {
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+ uint8 *buf;
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+ uint64 offset;
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+
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+ offset = wasm_runtime_shared_heap_malloc(module_inst, 1024 * (i + 1),
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+ (void **)&buf);
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+
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+ if (offset == 0) {
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+ printf("Failed to allocate memory from shared heap\n");
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+ break;
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+ }
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+
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+ snprintf(buf, 1024, "Hello, this is buf %u allocated from shared heap",
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+ i + 1);
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+
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+ printf("wasm app1 send buf: %s\n\n", buf);
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+ if (!bh_post_msg(queue, 1, buf, 1024 * i)) {
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+ printf("Failed to post message to queue\n");
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+ wasm_runtime_shared_heap_free(module_inst, offset);
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+ break;
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+ }
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+ }
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+
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+ /* allocate memory by calling my_shared_malloc function and send it
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+ to wasm app2 */
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+ for (i = 5; i < 10; i++) {
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+ uint8 *buf;
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+
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+ argv[0] = 1024 * (i + 1);
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+ argv[1] = i + 1;
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+ wasm_runtime_call_wasm(exec_env, my_shared_malloc_func, 2, argv);
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+
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+ if (wasm_runtime_get_exception(module_inst)) {
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+ printf("Failed to call 'my_shared_malloc` function: %s\n",
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+ wasm_runtime_get_exception(module_inst));
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+ break;
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+ }
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+ if (argv[0] == 0) {
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+ printf("Failed to allocate memory from shared heap\n");
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+ break;
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+ }
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+
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+ buf = wasm_runtime_addr_app_to_native(module_inst, argv[0]);
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+
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+ printf("wasm app1 send buf: %s\n\n", buf);
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+ if (!bh_post_msg(queue, 1, buf, 1024 * i)) {
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+ printf("Failed to post message to queue\n");
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+ wasm_runtime_shared_heap_free(module_inst, argv[0]);
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+ break;
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+ }
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+ }
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+
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+ wasm_runtime_destroy_exec_env(exec_env);
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+
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+ return NULL;
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+}
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+
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+static void
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+queue_callback(void *message, void *arg)
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+{
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+ bh_message_t msg = (bh_message_t)message;
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+ wasm_exec_env_t exec_env = arg;
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+ wasm_module_inst_t module_inst = wasm_runtime_get_module_inst(exec_env);
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+ wasm_function_inst_t print_buf_func;
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+ uint32 argv[2];
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+
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+ /* lookup wasm function */
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+ if (!(print_buf_func =
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+ wasm_runtime_lookup_function(module_inst, "print_buf"))) {
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+ printf("Failed to lookup function.\n");
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+ return;
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+ }
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+
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+ char *buf = bh_message_payload(msg);
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+ printf("wasm app's native queue received buf: %s\n\n", buf);
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+
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+ /* call wasm function */
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+ argv[0] = wasm_runtime_addr_native_to_app(module_inst, buf);
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+ wasm_runtime_call_wasm(exec_env, print_buf_func, 1, argv);
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+}
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+
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+static void *
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+thread2_callback(void *arg)
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+{
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+ thread_arg *targ = arg;
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+ bh_queue *queue = targ->queue;
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+ wasm_module_inst_t module_inst = targ->module_inst;
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+ wasm_exec_env_t exec_env;
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+
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+ /* create exec env */
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+ if (!(exec_env = wasm_runtime_create_exec_env(module_inst, 32768))) {
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+ printf("Failed to create exec env.\n");
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+ return NULL;
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+ }
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+
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+ /* enter queue's message loop until bh_queue_exit_loop_run
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+ is called */
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+ bh_queue_enter_loop_run(queue, queue_callback, exec_env);
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+
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+ wasm_runtime_destroy_exec_env(exec_env);
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+
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+ return NULL;
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+}
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+
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+static char global_heap_buf[512 * 1024];
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+
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+int
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+main(int argc, char **argv)
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+{
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+ char *wasm_file1 = NULL, *wasm_file2 = NULL;
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+ uint8 *wasm_file1_buf = NULL, *wasm_file2_buf = NULL;
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+ uint32 wasm_file1_size, wasm_file2_size;
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+ wasm_module_t wasm_module1 = NULL, wasm_module2 = NULL;
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+ wasm_module_inst_t module_inst1 = NULL;
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+ wasm_module_inst_t module_inst2 = NULL;
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+ wasm_shared_heap_t shared_heap = NULL;
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+ bh_queue *queue = NULL;
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+ RuntimeInitArgs init_args;
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+ SharedHeapInitArgs heap_init_args;
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+ char error_buf[128] = { 0 };
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+ int ret = -1;
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+
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+ memset(&init_args, 0, sizeof(RuntimeInitArgs));
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+
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+ init_args.mem_alloc_type = Alloc_With_Pool;
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+ init_args.mem_alloc_option.pool.heap_buf = global_heap_buf;
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+ init_args.mem_alloc_option.pool.heap_size = sizeof(global_heap_buf);
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+
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+ /* init wasm runtime */
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+ if (!wasm_runtime_full_init(&init_args)) {
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+ printf("Init runtime environment failed.\n");
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+ return -1;
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+ }
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+
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+ /* create queue */
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+ if (!(queue = bh_queue_create())) {
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+ printf("Create queue failed.\n");
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+ goto fail;
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+ }
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+
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+ /* read wasm file */
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+ wasm_file1 = "./wasm-apps/test1.wasm";
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+ if (!(wasm_file1_buf =
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+ bh_read_file_to_buffer(wasm_file1, &wasm_file1_size))) {
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+ printf("Open wasm file %s failed.\n", wasm_file1);
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+ goto fail;
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+ }
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+
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+ /* load wasm file */
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+ wasm_module1 = wasm_runtime_load((uint8 *)wasm_file1_buf, wasm_file1_size,
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+ error_buf, sizeof(error_buf));
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+ if (!wasm_module1) {
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+ printf("Load wasm module failed. error: %s\n", error_buf);
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+ goto fail;
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+ }
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+
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+ /* instantiate module */
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+ module_inst1 = wasm_runtime_instantiate(wasm_module1, 65536, 0, error_buf,
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+ sizeof(error_buf));
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+ if (!module_inst1) {
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+ printf("Instantiate wasm module failed. error: %s\n", error_buf);
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+ goto fail;
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+ }
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+
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+ /* read wasm file */
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+ wasm_file2 = "./wasm-apps/test2.wasm";
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+ if (!(wasm_file2_buf =
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+ bh_read_file_to_buffer(wasm_file2, &wasm_file2_size))) {
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+ printf("Open wasm file %s failed.\n", wasm_file1);
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+ goto fail;
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+ }
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+
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+ /* load wasm file */
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+ wasm_module2 = wasm_runtime_load((uint8 *)wasm_file2_buf, wasm_file2_size,
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+ error_buf, sizeof(error_buf));
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+ if (!wasm_module2) {
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+ printf("Load wasm module failed. error: %s\n", error_buf);
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+ goto fail;
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+ }
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+
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+ /* instantiate module */
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+ module_inst2 = wasm_runtime_instantiate(wasm_module2, 65536, 0, error_buf,
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+ sizeof(error_buf));
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+ if (!module_inst2) {
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+ printf("Instantiate wasm module failed. error: %s\n", error_buf);
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+ goto fail;
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+ }
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+
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+ /* create shared heap */
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+ memset(&heap_init_args, 0, sizeof(heap_init_args));
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+ heap_init_args.size = 65536;
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+ shared_heap = wasm_runtime_create_shared_heap(&heap_init_args);
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+ if (!shared_heap) {
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+ printf("Create shared heap failed. error: %s\n", error_buf);
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+ goto fail;
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+ }
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+
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+ /* attach module instance 1 to the shared heap */
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+ if (!wasm_runtime_attach_shared_heap(module_inst1, shared_heap)) {
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+ printf("Attach shared heap failed.\n");
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+ goto fail;
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+ }
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+
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+ /* attach module instance 2 to the shared heap */
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+ if (!wasm_runtime_attach_shared_heap(module_inst2, shared_heap)) {
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+ printf("Attach shared heap failed.\n");
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+ goto fail;
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+ }
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+
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+ /* create thread 1 */
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+ struct thread_arg targ1 = { 0 };
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+ korp_tid tid1;
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+ targ1.queue = queue;
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+ targ1.module_inst = module_inst1;
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+ if (os_thread_create(&tid1, thread1_callback, &targ1,
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+ APP_THREAD_STACK_SIZE_DEFAULT)) {
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+ printf("Failed to create thread 1\n");
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+ goto fail;
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+ }
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+
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+ /* create thread 2 */
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+ struct thread_arg targ2 = { 0 };
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+ korp_tid tid2;
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+ targ2.queue = queue;
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+ targ2.module_inst = module_inst2;
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+ if (os_thread_create(&tid2, thread2_callback, &targ2,
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+ APP_THREAD_STACK_SIZE_DEFAULT)) {
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+ printf("Failed to create thread 2\n");
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+ os_thread_join(tid1, NULL);
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+ goto fail;
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+ }
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+
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+ /* wait until all messages are post to wasm app2 and wasm app2
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+ handles all of them, then exit the queue message loop */
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+ usleep(2000);
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+ bh_queue_exit_loop_run(queue);
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+
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+ os_thread_join(tid1, NULL);
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+ os_thread_join(tid2, NULL);
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+
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+ ret = 0;
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+
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+fail:
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+ if (module_inst2)
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+ wasm_runtime_deinstantiate(module_inst2);
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+
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+ if (module_inst1)
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+ wasm_runtime_deinstantiate(module_inst1);
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+
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+ if (wasm_module2)
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+ wasm_runtime_unload(wasm_module2);
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+
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+ if (wasm_module1)
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+ wasm_runtime_unload(wasm_module1);
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+
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+ if (wasm_file2_buf)
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+ wasm_runtime_free(wasm_file2_buf);
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+
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+ if (wasm_file1_buf)
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+ wasm_runtime_free(wasm_file1_buf);
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+
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+ if (queue)
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+ bh_queue_destroy(queue);
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+
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+ wasm_runtime_destroy();
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+
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+ return ret;
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+}
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Wenyong Huang