From 69aed18b78aa0fe29d6e7ca9ddc28a695d1e67e8 Mon Sep 17 00:00:00 2001
From: sisong <sisong@gmail.com>
Date: Sun, 4 Apr 2021 12:17:57 +0800
Subject: [PATCH] add hpatch interface code

---
 android/jni/DownloadTask.c                          |  7 +++++++
 .../cn_reactnative_modules_update_DownloadTask.h    |  8 ++++++++
 android/jni/hpatch.c                                | 13 +++++++++++++
 android/jni/hpatch.h                                | 13 +++++++++++++
 .../cn/reactnative/modules/update/DownloadTask.java |  3 ++-
 5 files changed, 43 insertions(+), 1 deletion(-)
 create mode 100644 android/jni/hpatch.c
 create mode 100644 android/jni/hpatch.h

diff --git a/android/jni/DownloadTask.c b/android/jni/DownloadTask.c
index 32491f8..4644da9 100644
--- a/android/jni/DownloadTask.c
+++ b/android/jni/DownloadTask.c
@@ -108,4 +108,11 @@ JNIEXPORT jbyteArray JNICALL Java_cn_reactnative_modules_update_DownloadTask_bsd
     (*env)->ReleaseByteArrayElements(env, origin, originPtr, JNI_ABORT);
     (*env)->ReleaseByteArrayElements(env, patch, patchPtr, JNI_ABORT);
     return ret;
+}
+
+
+JNIEXPORT jbyteArray JNICALL Java_cn_reactnative_modules_update_DownloadTask_hdiffPatch
+        (JNIEnv *env, jobject self, jbyteArray origin, jbyteArray patch){
+    //todo: 
+    return 0;
 }
\ No newline at end of file
diff --git a/android/jni/cn_reactnative_modules_update_DownloadTask.h b/android/jni/cn_reactnative_modules_update_DownloadTask.h
index fc08c72..0da7e9e 100644
--- a/android/jni/cn_reactnative_modules_update_DownloadTask.h
+++ b/android/jni/cn_reactnative_modules_update_DownloadTask.h
@@ -15,6 +15,14 @@ extern "C" {
 JNIEXPORT jbyteArray JNICALL Java_cn_reactnative_modules_update_DownloadTask_bsdiffPatch
   (JNIEnv *, jclass, jbyteArray, jbyteArray);
 
+/*
+ * Class:     cn_reactnative_modules_update_DownloadTask
+ * Method:    hdiffPatch
+ * Signature: ([B[B)[B
+ */
+JNIEXPORT jbyteArray JNICALL Java_cn_reactnative_modules_update_DownloadTask_hdiffPatch
+  (JNIEnv *, jclass, jbyteArray, jbyteArray);
+
 #ifdef __cplusplus
 }
 #endif
diff --git a/android/jni/hpatch.c b/android/jni/hpatch.c
new file mode 100644
index 0000000..0e34c9c
--- /dev/null
+++ b/android/jni/hpatch.c
@@ -0,0 +1,13 @@
+// hpatch.c
+// Copyright 2021 housisong, All rights reserved
+
+int hpatch_by_mem(const uint8_t* old,size_t oldsize, uint8_t* newBuf,size_t newsize,
+                  const uint8_t* pat,size_t patsize){
+    //todo:
+    return -1;
+}
+
+int hpatch_by_file(const char* oldfile, const char* newfile, const char* patchfile){
+    //todo:
+    return -1;
+}
\ No newline at end of file
diff --git a/android/jni/hpatch.h b/android/jni/hpatch.h
new file mode 100644
index 0000000..377cb23
--- /dev/null
+++ b/android/jni/hpatch.h
@@ -0,0 +1,13 @@
+// hpatch.h 
+// import HDiffPatch, support patchfile created by "hdiffz -SD -C-lzma2 oldfile newfile patchfile" 
+// Copyright 2021 housisong, All rights reserved
+
+#ifndef HDIFFPATCH_PATCH_H
+#define HDIFFPATCH_PATCH_H
+# include <stdint.h> //for uint8_t
+
+int hpatch_by_mem(const uint8_t* old,size_t oldsize, uint8_t* newBuf,size_t newsize,
+                  const uint8_t* pat,size_t patsize);
+int hpatch_by_file(const char* oldfile, const char* newfile, const char* patchfile);
+
+#endif //HDIFFPATCH_PATCH_H
\ No newline at end of file
diff --git a/android/src/main/java/cn/reactnative/modules/update/DownloadTask.java b/android/src/main/java/cn/reactnative/modules/update/DownloadTask.java
index 9307884..12a049b 100644
--- a/android/src/main/java/cn/reactnative/modules/update/DownloadTask.java
+++ b/android/src/main/java/cn/reactnative/modules/update/DownloadTask.java
@@ -134,9 +134,10 @@ class DownloadTask extends AsyncTask<DownloadTaskParams, long[], Void> {
 
     }
 
-    byte[] buffer = new byte[1024];
+    byte[] buffer = new byte[1024*4];
 
     private static native byte[] bsdiffPatch(byte[] origin, byte[] patch);
+    private static native byte[] hdiffPatch(byte[] origin, byte[] patch);
 
     private void unzipToFile(ZipInputStream zis, File fmd) throws IOException {
         int count;