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dirReader.cpp

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dirReader.cpp

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//
// dirReader.cpp
//
#include "dirReader.h"
//
// DirReader implementation
//
#include <dirent.h>
#include <string.h> // strerror
static int dirsort(const struct dirent** dir1, const struct dirent** dir2)
{
return -alphasort(dir1, dir2); // Alphabetic order
}
static int dirfilter(const struct dirent* dir)
{
// Ignore "." and ".."
if(dir->d_name[0] == '.' && dir->d_name[1] == '\0')
return 0; // Ignore
else if(dir->d_name[0] == '.' && dir->d_name[1] == '.' && dir->d_name[2] == '\0')
return 0; // Ignore
else
return 1; // Keep
}
bool DirReader::Read(const char* dirName, void* param)
{
if(mAbort)
return false;
struct dirent** dirlist{nullptr};
int n = scandir(dirName, &dirlist, dirfilter, dirsort);
if(n < 0)
{
mErrMsg = std::string("Could not scandir '") + dirName + "' because of: ";
mErrMsg += strerror(errno);
return false;
}
while(!mAbort && n--)
{
struct dirent* dir = dirlist[n];
if(dir->d_type == DT_DIR)
{
// Got sub-directory to read
void* subDirParam = OnDirectory(dirName, dir->d_name, param);
Read(std::string(dirName) + "/" + dir->d_name, subDirParam);
OnDirectoryEnd(dirName, subDirParam);
}
// else if(dir->d_type == DT_LNK)
// {
// // TODO: support for links
// }
else
{
// Got file
OnFile(dirName, dir->d_name, param);
}
free(dir);
}
free(dirlist);
return !mAbort;
}
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