#include "posix_Stat.h"
#include <errno.h>
#include <sys/stat.h>

class jFile_stat {
  jfieldID dev,ino,mode,nlink,uid,gid,rdev,size,atime,mtime,ctime,
  	blksize,blocks;
public:
  void init(JNIEnv *env,jclass c) {
    dev = env->GetFieldID(c,"dev","I");
    ino = env->GetFieldID(c,"ino","I");
    mode = env->GetFieldID(c,"mode","I");
    nlink = env->GetFieldID(c,"nlink","I");
    uid = env->GetFieldID(c,"uid","I");
    gid = env->GetFieldID(c,"gid","I");
    rdev = env->GetFieldID(c,"rdev","I");
    size = env->GetFieldID(c,"size","J");
    atime = env->GetFieldID(c,"atime","J");
    mtime = env->GetFieldID(c,"mtime","J");
    ctime = env->GetFieldID(c,"ctime","J");
    blksize = env->GetFieldID(c,"blksize","I");
    blocks = env->GetFieldID(c,"blocks","J");
  }
  void setstat(JNIEnv *env,const struct stat *p,jobject statbuf) {
    env->SetIntField(statbuf,dev,p->st_dev);
    env->SetIntField(statbuf,ino,p->st_ino);
    env->SetIntField(statbuf,mode,p->st_mode);
    env->SetIntField(statbuf,nlink,p->st_nlink);
    env->SetIntField(statbuf,uid,p->st_uid);
    env->SetIntField(statbuf,gid,p->st_gid);
    env->SetIntField(statbuf,rdev,p->st_rdev);
    env->SetLongField(statbuf,size,p->st_size);
    env->SetLongField(statbuf,atime,(long long)p->st_atime * 1000);
    env->SetLongField(statbuf,mtime,(long long)p->st_mtime * 1000);
    env->SetLongField(statbuf,ctime,(long long)p->st_ctime * 1000);
    env->SetIntField(statbuf,blksize,p->st_blksize);
    env->SetLongField(statbuf,blocks,p->st_blocks);
  }
};

static jFile_stat File_stat;

JNIEXPORT void JNICALL Java_posix_Stat_init
  (JNIEnv *env, jclass c) {
  File_stat.init(env,c);
}

JNIEXPORT jint JNICALL Java_posix_Stat_stat
  (JNIEnv *env, jobject statbuf, jstring s) {
  struct stat buf;
  const char *path = env->GetStringUTFChars(s,0);
  int rc = 0;
  if (stat(path,&buf))
    rc = errno;
  else
    File_stat.setstat(env,&buf,statbuf);
  env->ReleaseStringUTFChars(s,path);
  return rc;
}