Add basic Table functions

lib/runtime-c-api/src/lib.rs

@@ -7,10 +7,10 @@ use std::slice;
 use std::str;
 use std::sync::Arc;
 use std::{ffi::c_void, mem, ptr};
-use wasmer_runtime::{ImportObject, Instance, Memory, Value};
+use wasmer_runtime::{ImportObject, Instance, Memory, Table, Value};
 use wasmer_runtime_core::export::{Context, Export, FuncPointer};
 use wasmer_runtime_core::import::{LikeNamespace, Namespace};
-use wasmer_runtime_core::types::{FuncSig, MemoryDescriptor, Type};
+use wasmer_runtime_core::types::{ElementType, FuncSig, MemoryDescriptor, TableDescriptor, Type};
 use wasmer_runtime_core::units::Pages;
 
 #[allow(non_camel_case_types)]
@@ -46,6 +46,14 @@ pub enum wasmer_memory_result_t {
     WASMER_MEMORY_ERROR = 2,
 }
 
+#[allow(non_camel_case_types)]
+#[no_mangle]
+#[repr(C)]
+pub enum wasmer_table_result_t {
+    WASMER_TABLE_OK = 1,
+    WASMER_TABLE_ERROR = 2,
+}
+
 #[repr(u32)]
 #[derive(Clone)]
 pub enum wasmer_value_tag {
@@ -74,10 +82,10 @@ pub struct wasmer_value_t {
 #[repr(C)]
 #[derive(Clone)]
 pub struct wasmer_memory_t();
-//{
-//    pub ptr: *mut uint8_t,
-//    pub len: uint32_t,
-//}
+
+#[repr(C)]
+#[derive(Clone)]
+pub struct wasmer_table_t();
 
 #[repr(C)]
 pub struct wasmer_limits_t {
@@ -118,7 +126,6 @@ pub unsafe extern "C" fn wasmer_memory_new(
     let new_memory = match result {
         Ok(memory) => memory,
         Err(error) => {
-            println!("Err: {:?}", error);
             return wasmer_memory_result_t::WASMER_MEMORY_ERROR;
         }
     };
@@ -135,6 +142,44 @@ pub extern "C" fn wasmer_memory_length(memory: *mut wasmer_memory_t) -> uint32_t
     len
 }
 
+#[no_mangle]
+pub unsafe extern "C" fn wasmer_table_new(
+    mut table: *mut *mut wasmer_table_t,
+    limits: wasmer_limits_t,
+) -> wasmer_table_result_t {
+    let desc = TableDescriptor {
+        element: ElementType::Anyfunc,
+        minimum: limits.min,
+        maximum: Some(limits.max),
+    };
+    let result = Table::new(desc);
+    let new_table = match result {
+        Ok(table) => table,
+        Err(error) => {
+            return wasmer_table_result_t::WASMER_TABLE_ERROR;
+        }
+    };
+    unsafe { *table = Box::into_raw(Box::new(new_table)) as *mut wasmer_table_t };
+    wasmer_table_result_t::WASMER_TABLE_OK
+}
+
+#[allow(clippy::cast_ptr_alignment)]
+#[no_mangle]
+pub extern "C" fn wasmer_table_length(table: *mut wasmer_table_t) -> uint32_t {
+    let table = unsafe { Box::from_raw(table as *mut Table) };
+    let len = table.size();
+    Box::into_raw(table);
+    len
+}
+
+#[allow(clippy::cast_ptr_alignment)]
+#[no_mangle]
+pub extern "C" fn wasmer_table_destroy(table: *mut wasmer_table_t) {
+    if !table.is_null() {
+        drop(unsafe { Box::from_raw(table as *mut Table) });
+    }
+}
+
 #[allow(clippy::cast_ptr_alignment)]
 #[no_mangle]
 pub extern "C" fn wasmer_import_object_destroy(import_object: *mut wasmer_import_object_t) {
@@ -169,7 +214,6 @@ pub unsafe extern "C" fn wasmer_instantiate(
     let new_instance = match result {
         Ok(instance) => instance,
         Err(error) => {
-            println!("Err: {:?}", error);
             return wasmer_compile_result_t::WASMER_COMPILE_ERROR;
         }
     };

lib/runtime-c-api/tests/.gitignore

@@ -12,5 +12,6 @@ _deps
 test-instantiate
 test-import-function
 test-memory
+test-tables
 test-validate
 rust-build

lib/runtime-c-api/tests/CMakeLists.txt

@@ -5,6 +5,7 @@ add_executable(test-instantiate test-instantiate.c)
 add_executable(test-import-function test-import-function.c)
 add_executable(test-memory test-memory.c)
 add_executable(test-validate test-validate.c)
+add_executable(test-tables test-tables.c)
 
 find_library(
         WASMER_LIB NAMES libwasmer_runtime_c_api.dylib libwasmer_runtime_c_api.so libwasmer_runtime_c_api.dll
@@ -23,10 +24,13 @@ target_link_libraries(test-memory
         general ${WASMER_LIB})
 target_link_libraries(test-validate
         general ${WASMER_LIB})
+target_link_libraries(test-tables
+        general ${WASMER_LIB})
 
 enable_testing()
 add_test(test-instantiate test-instantiate)
 add_test(test-import-function test-import-function)
 add_test(test-memory test-memory)
 add_test(test-validate test-validate)
+add_test(test-tables test-tables)
 

lib/runtime-c-api/tests/test-tables.c

@@ -0,0 +1,23 @@
+#include <stdio.h>
+#include "../wasmer.h"
+#include <assert.h>
+#include <stdint.h>
+
+int main()
+{
+    wasmer_table_t *table = NULL;
+    wasmer_limits_t descriptor;
+    descriptor.min = 10;
+    descriptor.max = 10;
+    wasmer_table_result_t table_result = wasmer_table_new(&table, descriptor);
+    printf("Table result:  %d\n", table_result);
+    assert(table_result == WASMER_TABLE_OK);
+
+    uint32_t len = wasmer_table_length(table);
+    printf("Table length:  %d\n", len);
+    assert(len == 10);
+
+    printf("Destroy table\n");
+    wasmer_table_destroy(table);
+    return 0;
+}

lib/runtime-c-api/wasmer.h

@@ -18,6 +18,11 @@ typedef enum {
   WASMER_MEMORY_ERROR = 2,
 } wasmer_memory_result_t;
 
+typedef enum {
+  WASMER_TABLE_OK = 1,
+  WASMER_TABLE_ERROR = 2,
+} wasmer_table_result_t;
+
 enum wasmer_value_tag {
   WASM_I32,
   WASM_I64,
@@ -53,6 +58,10 @@ typedef struct {
   uint32_t max;
 } wasmer_limits_t;
 
+typedef struct {
+
+} wasmer_table_t;
+
 void wasmer_import_object_destroy(wasmer_import_object_t *import_object);
 
 wasmer_import_object_t *wasmer_import_object_new(void);
@@ -88,4 +97,10 @@ uint32_t wasmer_memory_length(wasmer_memory_t *memory);
 
 wasmer_memory_result_t wasmer_memory_new(wasmer_memory_t **memory, wasmer_limits_t limits);
 
+void wasmer_table_destroy(wasmer_table_t *table);
+
+uint32_t wasmer_table_length(wasmer_table_t *table);
+
+wasmer_table_result_t wasmer_table_new(wasmer_table_t **table, wasmer_limits_t limits);
+
 bool wasmer_validate(uint8_t *wasm_bytes, uint32_t wasm_bytes_len);

lib/runtime-c-api/wasmer.hh

@@ -17,6 +17,11 @@ enum class wasmer_memory_result_t {
   WASMER_MEMORY_ERROR = 2,
 };
 
+enum class wasmer_table_result_t {
+  WASMER_TABLE_OK = 1,
+  WASMER_TABLE_ERROR = 2,
+};
+
 enum class wasmer_value_tag : uint32_t {
   WASM_I32,
   WASM_I64,
@@ -51,6 +56,10 @@ struct wasmer_limits_t {
   uint32_t max;
 };
 
+struct wasmer_table_t {
+
+};
+
 extern "C" {
 
 void wasmer_import_object_destroy(wasmer_import_object_t *import_object);
@@ -88,6 +97,12 @@ uint32_t wasmer_memory_length(wasmer_memory_t *memory);
 
 wasmer_memory_result_t wasmer_memory_new(wasmer_memory_t **memory, wasmer_limits_t limits);
 
+void wasmer_table_destroy(wasmer_table_t *table);
+
+uint32_t wasmer_table_length(wasmer_table_t *table);
+
+wasmer_table_result_t wasmer_table_new(wasmer_table_t **table, wasmer_limits_t limits);
+
 bool wasmer_validate(uint8_t *wasm_bytes, uint32_t wasm_bytes_len);
 
 } // extern "C"