sifilemgr.c

#include "sifilemgr.h"
#include "utils.h"
#include <string.h>
#include <windows.h>



//文件链表
typedef struct SiFileLink
{
	struct SiFileInfo fileinfo;
	struct SiFileLink* next;
};


static struct SiFileLink* si_file_link = NULL;

//创建一个SiFileLink结构
static struct SiFileLink* SiFile_Create(unsigned long hash,int u8flag,unsigned char md5[16],char* orgfile,char* gbkfile)
{
	struct SiFileLink* tmp = (struct SiFileLink*)malloc(sizeof(struct SiFileLink));
	memset(tmp,0,sizeof(struct SiFileLink));
	tmp->fileinfo.hash = hash;
	tmp->fileinfo.u8flag = u8flag;
	memcpy(tmp->fileinfo.orgmd5,md5,16);
	strcpy(tmp->fileinfo.orgfile,orgfile);
	strcpy(tmp->fileinfo.gbkfile,gbkfile);
	return tmp;
}

//useless
static void SiFile_Destory(struct SiFileLink* file)
{
	if(file != NULL)
	{		
		file->next = NULL;
		free(file);
	}
}

//添加到链表
void SiFile_Add(unsigned long hash,int u8flag,unsigned char md5[16],char* orgfile,char* gbkfile)
{
	struct SiFileLink* file = SiFile_Create(hash,u8flag,md5,orgfile,gbkfile);
	
	struct SiFileLink* tmp = si_file_link;
	if(tmp == NULL)
	{
		si_file_link = file;
		return;
	}
	
	while(tmp->next)
	{
		tmp = tmp->next;
	}
	tmp->next = file;
	
	return;
}

//从链表中查找文件
struct SiFileInfo* FindSiFileFromLink(unsigned long hash)
{
	struct SiFileLink* cur = si_file_link;
	
	while(cur)
	{
		if(cur->fileinfo.hash == hash)
			return &cur->fileinfo;
			
		cur = cur->next;
	}	
	
	return NULL;
}

//删除临时文件
void SiFile_Unlink(void)
{
	struct SiFileLink* cur = si_file_link;
	
	while(cur)
	{
		if(cur->fileinfo.u8flag != 0)
		{
			DeleteFile(cur->fileinfo.gbkfile);
		}
			
		cur = cur->next;
	}	
	
	return;	
}

/**
 * [根据短文件名查找文件编码]
 * @param  title [短文件名]
 * @return       [-1 未找到 0 GBK >0 UTF8]
 */
int FindU8FlagFromLink(char* title)
{
	int count = 0;

	struct SiFileLink* cur = si_file_link;
	struct SiFileLink* last = NULL;
	
	while(cur)
	{
		char filename[256];
		GetFilenameFromPath(cur->fileinfo.orgfile, filename);
		if(strcasecmp(filename, Trim(title)) == 0)
		{
			count++;
			last = cur;
		}

		cur = cur->next;
	}

	if(count == 0 || count > 1)
		return -1;
	return last->fileinfo.u8flag;
}