From 178288dcf87030a06133f35bfaba7f866b236466 Mon Sep 17 00:00:00 2001
From: Young-Flash <dongyang@apache.org>
Date: Wed, 22 Jan 2025 15:59:32 +0800
Subject: [PATCH] internal: use native api in c_runtime

---
 sync_io/moon.pkg.json      |  8 +---
 sync_io/native_stub.c      | 77 --------------------------------------
 sync_io/sync_io.mbt        |  2 +-
 sync_io/sync_io_native.mbt |  6 +--
 4 files changed, 6 insertions(+), 87 deletions(-)
 delete mode 100644 sync_io/native_stub.c

diff --git a/sync_io/moon.pkg.json b/sync_io/moon.pkg.json
index 3cbc9dfd3..43ac59fb7 100644
--- a/sync_io/moon.pkg.json
+++ b/sync_io/moon.pkg.json
@@ -8,11 +8,7 @@
     "targets": {
         "sync_io_wasm.mbt": ["wasm", "wasm-gc"],
         "sync_io_js.mbt": ["js"],
-        "sync_io_native.mbt": ["native"]
-    },
-    "link": {
-        "native": {
-           "cc-flags": "./sync_io/native_stub.c"
-        }
+        "sync_io_native.mbt": ["native"],
+        "util.mbt": ["wasm", "wasm-gc"]
     }
 }
diff --git a/sync_io/native_stub.c b/sync_io/native_stub.c
deleted file mode 100644
index 74ca9b494..000000000
--- a/sync_io/native_stub.c
+++ /dev/null
@@ -1,77 +0,0 @@
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <sys/stat.h>
-#include "moonbit.h"
-
-#ifdef _WIN32
-#include <windows.h>
-#include <direct.h>
-#else
-#include <dirent.h>
-#include <unistd.h>
-#endif
-
-int path_exists(struct moonbit_bytes *path) {
-    struct stat buffer;
-    int status = stat((const char *)(path->data), &buffer);
-    if (status == 0) {
-        return 0;
-    }
-    return -1;
-}
-
-struct moonbit_bytes* read_file_to_bytes(struct moonbit_bytes *filename) {
-    FILE *file = fopen((const char*)(filename->data), "rb");
-    if (file == NULL) {
-        perror("fopen");
-        return NULL;
-    }
-
-    // move file pointer to the end of the file
-    if (fseek(file, 0, SEEK_END) != 0) {
-        perror("fseek");
-        fclose(file);
-        return NULL;
-    }
-
-    // get the current position of the file pointer, which is the file size
-    long size = ftell(file);
-    if (size == -1L) {
-        perror("ftell");
-        fclose(file);
-        return NULL;
-    }
-
-    if (fseek(file, 0, SEEK_SET) != 0) {
-        perror("fseek");
-        fclose(file);
-        return NULL;
-    }
-
-    struct moonbit_bytes* bytes = moonbit_make_bytes(size, 0);
-
-    // read the file content into the bytes->data
-    size_t bytes_read = fread(bytes->data, 1, (size_t)size, file);
-    if (bytes_read != (size_t)size) {
-        perror("fread");
-        fclose(file);
-        return NULL;
-    }
-
-    // close the file
-    if (fclose(file) != 0) {
-        perror("fclose");
-        return NULL;
-    }
-
-    return bytes;
-}
-
-void write_bytes_to_file(struct moonbit_bytes* path, struct moonbit_bytes* content) {
-    FILE *file = fopen((const char *)(path->data), "wb");
-    size_t content_size = Moonbit_array_length(content);
-    fwrite(content->data, 1, content_size, file);
-    fflush(file);
-    fclose(file);
-}
diff --git a/sync_io/sync_io.mbt b/sync_io/sync_io.mbt
index 87808dd78..48ce3867c 100644
--- a/sync_io/sync_io.mbt
+++ b/sync_io/sync_io.mbt
@@ -13,7 +13,7 @@
 // limitations under the License.
 
 ///|
-type! IOError {
+pub type! IOError {
   NotFound(String)
 }
 
diff --git a/sync_io/sync_io_native.mbt b/sync_io/sync_io_native.mbt
index 865530303..e50258be6 100644
--- a/sync_io/sync_io_native.mbt
+++ b/sync_io/sync_io_native.mbt
@@ -20,7 +20,7 @@ fn read_file_to_bytes_internal(path : String) -> Bytes! {
 }
 
 ///|
-extern "C" fn read_file_to_bytes_ffi(path : Bytes) -> Bytes = "read_file_to_bytes"
+fn read_file_to_bytes_ffi(path : Bytes) -> Bytes = "$moonbit.read_file_to_bytes"
 
 ///|
 fn write_bytes_to_file_internal(path : String, content : Bytes) -> Unit {
@@ -29,7 +29,7 @@ fn write_bytes_to_file_internal(path : String, content : Bytes) -> Unit {
 }
 
 ///|
-extern "C" fn write_bytes_to_file_ffi(path : Bytes, content : Bytes) = "write_bytes_to_file"
+fn write_bytes_to_file_ffi(path : Bytes, content : Bytes) = "$moonbit.write_bytes_to_file"
 
 ///|
 fn path_exists_internal(path : String) -> Bool {
@@ -37,7 +37,7 @@ fn path_exists_internal(path : String) -> Bool {
 }
 
 ///|
-extern "C" fn path_exists_ffi(path : Bytes) -> Int = "path_exists"
+fn path_exists_ffi(path : Bytes) -> Int = "$moonbit.path_exists"
 
 ///|
 fn mbt_string_to_utf8_bytes(str : String, is_c_str : Bool) -> Bytes {