diff options
Diffstat (limited to 'fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/multi-module/src/main.c')
| -rw-r--r-- | fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/multi-module/src/main.c | 167 |
1 files changed, 167 insertions, 0 deletions
diff --git a/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/multi-module/src/main.c b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/multi-module/src/main.c new file mode 100644 index 000000000..ca95ded5f --- /dev/null +++ b/fluent-bit/lib/wasm-micro-runtime-WAMR-1.2.2/samples/multi-module/src/main.c @@ -0,0 +1,167 @@ +#include <stdio.h> +#include <stdlib.h> +#include <string.h> + +#include "bh_read_file.h" +#include "platform_common.h" +#include "wasm_export.h" + +static char * +build_module_path(const char *module_name) +{ + const char *module_search_path = "."; + const char *format = "%s/%s.wasm"; + int sz = strlen(module_search_path) + strlen("/") + strlen(module_name) + + strlen(".wasm") + 1; + char *wasm_file_name = BH_MALLOC(sz); + if (!wasm_file_name) { + return NULL; + } + + snprintf(wasm_file_name, sz, format, module_search_path, module_name); + return wasm_file_name; +} + +static bool +module_reader_cb(const char *module_name, uint8 **p_buffer, uint32 *p_size) +{ + char *wasm_file_path = build_module_path(module_name); + if (!wasm_file_path) { + return false; + } + + printf("- bh_read_file_to_buffer %s\n", wasm_file_path); + *p_buffer = (uint8_t *)bh_read_file_to_buffer(wasm_file_path, p_size); + BH_FREE(wasm_file_path); + return *p_buffer != NULL; +} + +static void +module_destroyer_cb(uint8 *buffer, uint32 size) +{ + printf("- release the read file buffer\n"); + if (!buffer) { + return; + } + + BH_FREE(buffer); + buffer = NULL; +} + +/* 10M */ +static char sandbox_memory_space[10 * 1024 * 1024] = { 0 }; +int +main() +{ + bool ret = false; + /* 16K */ + const uint32 stack_size = 16 * 1024; + const uint32 heap_size = 16 * 1024; + + RuntimeInitArgs init_args = { 0 }; + char error_buf[128] = { 0 }; + /* parameters and return values */ + char *args[1] = { 0 }; + + uint8 *file_buf = NULL; + uint32 file_buf_size = 0; + wasm_module_t module = NULL; + wasm_module_t module1; + wasm_module_inst_t module_inst = NULL; + + /* all malloc() only from the given buffer */ + init_args.mem_alloc_type = Alloc_With_Pool; + init_args.mem_alloc_option.pool.heap_buf = sandbox_memory_space; + init_args.mem_alloc_option.pool.heap_size = sizeof(sandbox_memory_space); + + printf("- wasm_runtime_full_init\n"); + /* initialize runtime environment */ + if (!wasm_runtime_full_init(&init_args)) { + printf("Init runtime environment failed.\n"); + goto EXIT; + } + +#if WASM_ENABLE_MULTI_MODULE != 0 + printf("- wasm_runtime_set_module_reader\n"); + /* set module reader and destroyer */ + wasm_runtime_set_module_reader(module_reader_cb, module_destroyer_cb); +#endif + + /* load WASM byte buffer from WASM bin file */ + if (!module_reader_cb("mC", &file_buf, &file_buf_size)) { + goto RELEASE_RUNTIME; + } + + /* load mC and let WAMR load mA and mB */ + printf("- wasm_runtime_load\n"); + if (!(module = wasm_runtime_load(file_buf, file_buf_size, error_buf, + sizeof(error_buf)))) { + printf("%s\n", error_buf); + goto RELEASE_BINARY; + } + + /* instantiate the module */ + printf("- wasm_runtime_instantiate\n"); + if (!(module_inst = wasm_runtime_instantiate( + module, stack_size, heap_size, error_buf, sizeof(error_buf)))) { + printf("%s\n", error_buf); + goto UNLOAD_MODULE; + } + + /* call functions of mC */ + printf("\n----------------------------------------\n"); + printf("call \"C1\", it will return 0x1f:i32, ===> "); + wasm_application_execute_func(module_inst, "C1", 0, args); + printf("call \"C2\", it will call B1() of mB and return 0x15:i32, ===> "); + wasm_application_execute_func(module_inst, "C2", 0, args); + printf("call \"C3\", it will call A1() of mA and return 0xb:i32, ===> "); + wasm_application_execute_func(module_inst, "C3", 0, args); + printf("call \"C4\", it will call B2() of mB and call A1() of mA and " + "return 0xb:i32, ===> "); + wasm_application_execute_func(module_inst, "C4", 0, args); + printf( + "call \"C5\", it will be failed since it is a export function, ===> "); + wasm_application_execute_func(module_inst, "C5", 0, args); + + /* examine module registration a bit */ + module1 = wasm_runtime_find_module_registered("mC"); + if (module1 != NULL) { + printf("unexpected module mC %p != NULL\n", module1); + goto UNLOAD_MODULE; + } + module1 = wasm_runtime_find_module_registered("mA"); + if (module1 == NULL) { + printf("unexpected module mA\n"); + goto UNLOAD_MODULE; + } + module1 = wasm_runtime_find_module_registered("mB"); + if (module1 == NULL) { + printf("unexpected module mB\n"); + goto UNLOAD_MODULE; + } + if (!wasm_runtime_register_module("mC", module, error_buf, + sizeof(error_buf))) { + printf("%s\n", error_buf); + goto UNLOAD_MODULE; + } + module1 = wasm_runtime_find_module_registered("mC"); + if (module1 != module) { + printf("unexpected module mC %p != %p\n", module1, module); + goto UNLOAD_MODULE; + } + + ret = true; + + printf("- wasm_runtime_deinstantiate\n"); + wasm_runtime_deinstantiate(module_inst); +UNLOAD_MODULE: + printf("- wasm_runtime_unload\n"); + wasm_runtime_unload(module); +RELEASE_BINARY: + module_destroyer_cb(file_buf, file_buf_size); +RELEASE_RUNTIME: + printf("- wasm_runtime_destroy\n"); + wasm_runtime_destroy(); +EXIT: + return ret ? 0 : 1; +} |