#include #include #include #include // This is now deprecated, but it should work regardless #include "wasmer_wasm.h" #define own // Use the last_error API to retrieve error messages own char* get_wasmer_error() { int error_len = wasmer_last_error_length(); printf("Error len: `%d`\n", error_len); char *error_str = malloc(error_len); wasmer_last_error_message(error_str, error_len); return error_str; } int main(int argc, const char *argv[]) { printf("Initializing...\n"); own wasm_engine_t* engine = wasm_engine_new(); own wasm_store_t* store = wasm_store_new(engine); // ===================== wasm_limits_t limits1 = { .min = 0, .max = 0x7FFFFFFF, }; own wasm_memorytype_t* memtype1 = wasm_memorytype_new(&limits1); own wasm_memory_t* memory1 = wasm_memory_new(store, memtype1); assert(memory1 == NULL); char* error = get_wasmer_error(); printf("Found error string: %s\n", error); // We can't validate the exact error message because it's not universal for the engines // assert(0 == strcmp("The maximum requested memory (2147483647 pages) is greater than the maximum allowed memory (65536 pages)", error)); free(error); wasm_memorytype_delete(memtype1); // ===================== wasm_limits_t limits2 = { .min = 15, .max = 25, }; own wasm_memorytype_t* memtype2 = wasm_memorytype_new(&limits2); own wasm_memory_t* memory2 = wasm_memory_new(store, memtype2); assert(memory2 != NULL); wasm_memorytype_delete(memtype2); wasm_memory_delete(memory2); // ===================== wasm_limits_t limits3 = { .min = 15, .max = wasm_limits_max_default, }; own wasm_memorytype_t* memtype3 = wasm_memorytype_new(&limits3); own wasm_memory_t* memory3 = wasm_memory_new(store, memtype3); assert(memory3 != NULL); int size = wasm_memory_size(memory3); printf("memory size: %d\n", size); wasm_memorytype_delete(memtype3); wasm_memory_delete(memory3); // ===================== wasm_limits_t limits4 = { .min = 0x7FFFFFFF, .max = 0x7FFFFFFF, }; own wasm_memorytype_t* memtype4 = wasm_memorytype_new(&limits4); own wasm_memory_t* memory4 = wasm_memory_new(store, memtype4); assert(memory4 == NULL); error = get_wasmer_error(); printf("Found error string: %s\n", error); // We can't validate the exact error message because it's not universal for the engines // assert(0 == strcmp("The minimum requested (2147483647 pages) memory is greater than the maximum allowed memory (65536 pages)", error)); free(error); wasm_memorytype_delete(memtype4); // ===================== wasm_limits_t limits5 = { .min = 0x7FFFFFFF, .max = 0x0FFFFFFF, }; own wasm_memorytype_t* memtype5 = wasm_memorytype_new(&limits5); own wasm_memory_t* memory5 = wasm_memory_new(store, memtype5); assert(memory5 == NULL); error = get_wasmer_error(); printf("Found error string: %s\n", error); // We can't validate the exact error message because it's not universal for the engines // assert(0 == strcmp("The minimum requested (2147483647 pages) memory is greater than the maximum allowed memory (65536 pages)", error)); free(error); wasm_memorytype_delete(memtype5); // ===================== wasm_limits_t limits6 = { .min = 15, .max = 10, }; own wasm_memorytype_t* memtype6 = wasm_memorytype_new(&limits6); own wasm_memory_t* memory6 = wasm_memory_new(store, memtype6); assert(memory6 == NULL); error = get_wasmer_error(); printf("Found error string: %s\n", error); // We can't validate the exact error message because it's not universal for the engines // assert(0 == strcmp("The memory is invalid because the maximum (10 pages) is less than the minimum (15 pages)", error)); free(error); wasm_memorytype_delete(memtype6); // ===================== wasm_limits_t limits7 = { .min = 0x7FFFFFFF, .max = 10, }; own wasm_memorytype_t* memtype7 = wasm_memorytype_new(&limits7); own wasm_memory_t* memory7 = wasm_memory_new(store, memtype7); assert(memory7 == NULL); error = get_wasmer_error(); printf("Found error string: %s\n", error); // We can't validate the exact error message because it's not universal for the engines // assert(0 == strcmp("The minimum requested (2147483647 pages) memory is greater than the maximum allowed memory (65536 pages)", error)); free(error); wasm_memorytype_delete(memtype7); printf("Shutting down...\n"); wasm_store_delete(store); wasm_engine_delete(engine); printf("Done.\n"); return 0; }