以下代码产生运行时错误:
Window File Search.exe 中 0x773315de 处未处理的异常:0xC0000005:访问冲突。
我不知道是什么原因造成的。你能指出我的错误吗?
这是可能包含罪魁祸首的函数:
int fileSearcher::findFilesRecursivelly(const TCHAR* curDir,const TCHAR* fileName,bool caseSensitive,TCHAR* output)
{
HANDLE hFoundFile;
WIN32_FIND_DATA foundFileData;
TCHAR nextDirBuffer[MAX_PATH]=TEXT("");
SetCurrentDirectory(curDir);
//Fetch inside current directory
hFoundFile = FindFirstFileEx(fileName,FINDEX_INFO_LEVELS::FindExInfoBasic,&foundFileData ,FINDEX_SEARCH_OPS::FindExSearchNameMatch ,NULL , FIND_FIRST_EX_LARGE_FETCH);
if(hFoundFile != INVALID_HANDLE_VALUE)
{
do
{
nothingFound = false;
wcscat(output,curDir);
wcscat(output,TEXT("\\"));
wcscat(output,foundFileData.cFileName);
wcscat(output,TEXT("\n"));
}
while(FindNextFile(hFoundFile,&foundFileData));
}
//Go to the subdirs
hFoundFile = FindFirstFileEx(TEXT("*"),FINDEX_INFO_LEVELS::FindExInfoBasic,&foundFileData ,FINDEX_SEARCH_OPS::FindExSearchLimitToDirectories ,NULL , FIND_FIRST_EX_LARGE_FETCH); //This line of code was on the call stack
if(hFoundFile != INVALID_HANDLE_VALUE)
{
do
{
wcscat(nextDirBuffer,curDir);
wcscat(nextDirBuffer,TEXT("\\"));
wcscat(nextDirBuffer,foundFileData.cFileName);
findFilesRecursivelly(nextDirBuffer,fileName,caseSensitive,outputBuffer);
}
while(FindNextFile(hFoundFile,&foundFileData));
}
return 0;
}
不太重要的代码:
文件搜索.h
#ifndef UNICODE
#define UNICODE
#endif
#include <Windows.h>
namespace fileSearch
{
class fileSearcher
{
public:
fileSearcher();
void getAllPaths(const TCHAR* fileName,bool caseSensitive,TCHAR* output);
/*Returns all matching pathes at the current local system. Format:
[A-Z]:\[FirstPath\foo1...\fileName]
[A-Z]:\[SecondPath\foo2...\fileName]
[A-Z]:\[ThirdPath\foo3...\fileName]
...
[A-Z]:\[FourthPath\foo4...\fileName]
Also an asterisk sign is supported, as in regular expressions.
This functions uses WinApi methods.
*/
int findFilesRecursivelly(const TCHAR* curDir,const TCHAR* fileName,bool caseSensitive,TCHAR* output);
//Searches for the file in the current and in sub directories. NOT IN PARENT!!!!!!!!!!!!!!!!!!!!! Returns true if the file is found.
private:
static const int MAX_NUMBER_OF_FILES = 100;
static const int MAX_OUTPUT_SIZE = 2000;
bool nothingFound;
TCHAR outputBuffer[MAX_OUTPUT_SIZE];
};
}
...以及 FileSeach.cpp 的其余部分
#ifndef UNICODE
#define UNICODE
#endif
#include "File Search.h"
using namespace fileSearch;
fileSearcher::fileSearcher()
{
nothingFound = true;
}
void fileSearcher::getAllPaths(const TCHAR* fileName,bool caseSensitive, TCHAR* output)
{
TCHAR localDrives[50];
TCHAR currentDrive;
int voluminesChecked=0;
TCHAR searchedVolumine[5];
GetLogicalDriveStrings(sizeof(localDrives)/sizeof(TCHAR),localDrives);
//For all drives:
for(int i=0; i < sizeof(localDrives)/sizeof(TCHAR); i++)
{
if(localDrives[i] >= 65 && localDrives[i] <= 90)
{
currentDrive = localDrives[i];
voluminesChecked++;
}
else continue;
searchedVolumine[0] = currentDrive;
searchedVolumine[1] = L':';
searchedVolumine[2] = 0;
outputBuffer[0]=0;
findFilesRecursivelly(searchedVolumine,fileName,caseSensitive,outputBuffer);
(nothingFound) ? wcscpy(output,L"File not found") : wcscpy(output,outputBuffer);
}
}
编辑
经过一些迭代后 curDir 的值是 -
+ curDir 0x003df234 "C:\.\$Recycle.Bin\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\.\ .\.\.\.\.\.\.\.\.\." 常量 wchar_t *
但我不知道为什么。