49 lines
2.0 KiB
C
49 lines
2.0 KiB
C
// hpatch_jni.c
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// Created by sisong on 2019-09-30.
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#include <jni.h>
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#include "hpatch.h"
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#ifdef __cplusplus
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extern "C" {
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#endif
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#define HPATCH_OPTIONS_ERROR 1
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#define _check_rt(v) do { if (!(v)) { result=HPATCH_OPTIONS_ERROR; goto _clear; }; } while(0)
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#define __j2cstr_(jstr,cstr) do { (cstr)=(*jenv)->GetStringUTFChars(jenv,jstr,NULL); _check_rt(cstr); } while(0)
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#define _check_j2cstr(jstr,cstr) do { _check_rt(jstr); __j2cstr_(jstr,cstr); } while(0)
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#define _check_jn2cstr(jstr,cstr) do { if (jstr) __j2cstr_(jstr,cstr); else (cstr)=0; } while(0)
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#define _jrelease_cstr(jstr,cstr) do { if (cstr) (*jenv)->ReleaseStringUTFChars(jenv,jstr,cstr); } while(0)
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static size_t getCacheMemory(jlong cacheMemory){
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#define kPatchCacheSize_default (1024*256)
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#define kPatchCacheSize_max ((jlong)((size_t)(~(size_t)0)))
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if (cacheMemory<0) return kPatchCacheSize_default;
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if (sizeof(jlong)<=sizeof(size_t)) return (size_t)cacheMemory;
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return (size_t)((cacheMemory<kPatchCacheSize_max)?cacheMemory:kPatchCacheSize_max);
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}
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JNIEXPORT int
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Java_com_github_sisong_HPatch_patch(JNIEnv* jenv,jobject jobj,
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jstring oldFileName,jstring diffFileName,
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jstring outNewFileName,jlong cacheMemory){
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const char* cOldFileName =0;
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const char* cDiffFileName =0;
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const char* cOutNewFileName=0;
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size_t cCacheMemory=getCacheMemory(cacheMemory);
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int result=0;
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_check_jn2cstr(oldFileName,cOldFileName);
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_check_j2cstr(diffFileName,cDiffFileName);
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_check_j2cstr(outNewFileName,cOutNewFileName);
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result=hpatchz(cOldFileName,cDiffFileName,cOutNewFileName,cCacheMemory);
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_clear:
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_jrelease_cstr(outNewFileName,cOutNewFileName);
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_jrelease_cstr(diffFileName,cDiffFileName);
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_jrelease_cstr(oldFileName,cOldFileName);
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return result;
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}
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#ifdef __cplusplus
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}
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#endif
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