diff options
Diffstat (limited to 'fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/spawn-thread/src/main.c')
-rw-r--r-- | fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/spawn-thread/src/main.c | 242 |
1 files changed, 242 insertions, 0 deletions
diff --git a/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/spawn-thread/src/main.c b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/spawn-thread/src/main.c new file mode 100644 index 000000000..9501ae4c0 --- /dev/null +++ b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/spawn-thread/src/main.c @@ -0,0 +1,242 @@ +/* + * Copyright (C) 2019 Intel Corporation. All rights reserved. + * SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception + */ + +#include "wasm_export.h" +#include "bh_read_file.h" +#include "pthread.h" + +#define THREAD_NUM 10 + +typedef struct ThreadArgs { + wasm_exec_env_t exec_env; + int start; + int length; +} ThreadArgs; + +void * +thread(void *arg) +{ + ThreadArgs *thread_arg = (ThreadArgs *)arg; + wasm_exec_env_t exec_env = thread_arg->exec_env; + wasm_module_inst_t module_inst = get_module_inst(exec_env); + wasm_function_inst_t func; + uint32 argv[2]; + + if (!wasm_runtime_init_thread_env()) { + printf("failed to initialize thread environment"); + return NULL; + } + + func = wasm_runtime_lookup_function(module_inst, "sum", NULL); + if (!func) { + printf("failed to lookup function sum"); + wasm_runtime_destroy_thread_env(); + return NULL; + } + argv[0] = thread_arg->start; + argv[1] = thread_arg->length; + + /* call the WASM function */ + if (!wasm_runtime_call_wasm(exec_env, func, 2, argv)) { + printf("%s\n", wasm_runtime_get_exception(module_inst)); + wasm_runtime_destroy_thread_env(); + return NULL; + } + + wasm_runtime_destroy_thread_env(); + return (void *)(uintptr_t)argv[0]; +} + +void * +wamr_thread_cb(wasm_exec_env_t exec_env, void *arg) +{ + ThreadArgs *thread_arg = (ThreadArgs *)arg; + wasm_module_inst_t module_inst = get_module_inst(exec_env); + wasm_function_inst_t func; + uint32 argv[2]; + + func = wasm_runtime_lookup_function(module_inst, "sum", NULL); + if (!func) { + printf("failed to lookup function sum"); + return NULL; + } + argv[0] = thread_arg->start; + argv[1] = thread_arg->length; + + /* call the WASM function */ + if (!wasm_runtime_call_wasm(exec_env, func, 2, argv)) { + printf("%s\n", wasm_runtime_get_exception(module_inst)); + return NULL; + } + + return (void *)(uintptr_t)argv[0]; +} + +int +main(int argc, char *argv[]) +{ + char *wasm_file = "wasm-apps/test.wasm"; + uint8 *wasm_file_buf = NULL; + uint32 wasm_file_size, wasm_argv[2], i, threads_created; + uint32 stack_size = 16 * 1024, heap_size = 16 * 1024; + wasm_module_t wasm_module = NULL; + wasm_module_inst_t wasm_module_inst = NULL; + wasm_exec_env_t exec_env = NULL; + RuntimeInitArgs init_args; + ThreadArgs thread_arg[THREAD_NUM]; + pthread_t tid[THREAD_NUM]; + wasm_thread_t wasm_tid[THREAD_NUM]; + uint32 result[THREAD_NUM], sum; + wasm_function_inst_t func; + char error_buf[128] = { 0 }; + + memset(thread_arg, 0, sizeof(ThreadArgs) * THREAD_NUM); + memset(&init_args, 0, sizeof(RuntimeInitArgs)); + init_args.mem_alloc_type = Alloc_With_Allocator; + init_args.mem_alloc_option.allocator.malloc_func = malloc; + init_args.mem_alloc_option.allocator.realloc_func = realloc; + init_args.mem_alloc_option.allocator.free_func = free; + init_args.max_thread_num = THREAD_NUM; + + /* initialize runtime environment */ + if (!wasm_runtime_full_init(&init_args)) { + printf("Init runtime environment failed.\n"); + return -1; + } + + /* load WASM byte buffer from WASM bin file */ + if (!(wasm_file_buf = + (uint8 *)bh_read_file_to_buffer(wasm_file, &wasm_file_size))) + goto fail1; + + /* load WASM module */ + if (!(wasm_module = wasm_runtime_load(wasm_file_buf, wasm_file_size, + error_buf, sizeof(error_buf)))) { + printf("%s\n", error_buf); + goto fail2; + } + + /* instantiate the module */ + if (!(wasm_module_inst = + wasm_runtime_instantiate(wasm_module, stack_size, heap_size, + error_buf, sizeof(error_buf)))) { + printf("%s\n", error_buf); + goto fail3; + } + + /* Create the first exec_env */ + if (!(exec_env = + wasm_runtime_create_exec_env(wasm_module_inst, stack_size))) { + printf("failed to create exec_env\n"); + goto fail4; + } + + func = wasm_runtime_lookup_function(wasm_module_inst, "sum", NULL); + if (!func) { + printf("failed to lookup function sum"); + goto fail5; + } + wasm_argv[0] = 0; + wasm_argv[1] = THREAD_NUM * 10; + + /* + * Execute the wasm function in current thread, get the expect result + */ + if (!wasm_runtime_call_wasm(exec_env, func, 2, wasm_argv)) { + printf("%s\n", wasm_runtime_get_exception(wasm_module_inst)); + } + printf("expect result: %d\n", wasm_argv[0]); + + /* + * Run wasm function in multiple thread created by pthread_create + */ + memset(thread_arg, 0, sizeof(ThreadArgs) * THREAD_NUM); + for (i = 0; i < THREAD_NUM; i++) { + wasm_exec_env_t new_exec_env; + thread_arg[i].start = 10 * i; + thread_arg[i].length = 10; + + /* spawn a new exec_env to be executed in other threads */ + new_exec_env = wasm_runtime_spawn_exec_env(exec_env); + if (new_exec_env) + thread_arg[i].exec_env = new_exec_env; + else { + printf("failed to spawn exec_env\n"); + break; + } + + /* If we use: + thread_arg[i].exec_env = exec_env, + we may get wrong result */ + + if (0 != pthread_create(&tid[i], NULL, thread, &thread_arg[i])) { + printf("failed to create thread.\n"); + wasm_runtime_destroy_spawned_exec_env(new_exec_env); + break; + } + } + + threads_created = i; + + sum = 0; + memset(result, 0, sizeof(uint32) * THREAD_NUM); + for (i = 0; i < threads_created; i++) { + pthread_join(tid[i], (void **)&result[i]); + sum += result[i]; + /* destroy the spawned exec_env */ + if (thread_arg[i].exec_env) + wasm_runtime_destroy_spawned_exec_env(thread_arg[i].exec_env); + } + + printf("[pthread]sum result: %d\n", sum); + + /* + * Run wasm function in multiple thread created by wamr spawn API + */ + memset(thread_arg, 0, sizeof(ThreadArgs) * THREAD_NUM); + for (i = 0; i < THREAD_NUM; i++) { + thread_arg[i].start = 10 * i; + thread_arg[i].length = 10; + + /* No need to spawn exec_env manually */ + if (0 + != wasm_runtime_spawn_thread(exec_env, &wasm_tid[i], wamr_thread_cb, + &thread_arg[i])) { + printf("failed to spawn thread.\n"); + break; + } + } + + threads_created = i; + + sum = 0; + memset(result, 0, sizeof(uint32) * THREAD_NUM); + for (i = 0; i < threads_created; i++) { + wasm_runtime_join_thread(wasm_tid[i], (void **)&result[i]); + sum += result[i]; + /* No need to destroy the spawned exec_env */ + } + printf("[spwan_thread]sum result: %d\n", sum); + +fail5: + wasm_runtime_destroy_exec_env(exec_env); + +fail4: + /* destroy the module instance */ + wasm_runtime_deinstantiate(wasm_module_inst); + +fail3: + /* unload the module */ + wasm_runtime_unload(wasm_module); + +fail2: + /* free the file buffer */ + wasm_runtime_free(wasm_file_buf); + +fail1: + /* destroy runtime environment */ + wasm_runtime_destroy(); + return 0; +} |