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DirectoryList.cpp
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DirectoryList.cpp
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/*
Copyright 2004-2008 Matthew J. Battey
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at
http://www.apache.org/licenses/LICENSE-2.0
Unless required by applicable law or agreed to in writing, software distributed
under the License is distributed on an "AS IS" BASIS, WITHOUT WARRANTIES OR
CONDITIONS OF ANY KIND, either express or implied. See the License for the
specific language governing permissions and limitations under the License.
This software implements a platform independent Store and Forward Message Queue.
*/
#include "DirectoryList.h"
#ifdef _WIN32
#include <windows.h>
#else
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
#include <dirent.h>
#include <regex.h>
#endif
using namespace std;
//////////////////////////////////////////////////////////////////////
// Construction/Destruction
//////////////////////////////////////////////////////////////////////
DirectoryList::DirectoryList(const std::string& directory, const std::string& filter)
{
#ifdef _WIN32
// NOTE: WINDOWS Directory Listing done here.
::WIN32_FIND_DATA file;
::SYSTEMTIME systime;
::HANDLE hFind;
struct tm t;
hFind = ::FindFirstFile((directory+DIRSEP+filter).c_str(), &file);
if (hFind != INVALID_HANDLE_VALUE) {
do {
::FileTimeToSystemTime(&file.ftCreationTime, &systime);
t.tm_year = systime.wYear - 1900;
t.tm_mon = systime.wMonth;
t.tm_mday = systime.wDay;
t.tm_hour = systime.wHour;
t.tm_min = systime.wMinute;
t.tm_sec = systime.wSecond;
push_back(DirListItem(file.cFileName,mktime(&t),file.nFileSizeLow));
} while (::FindNextFile(hFind, &file));
::FindClose(hFind);
}
#else
int l;
std::string myfilter = filter;
// Convert standard directory file wildcards to a regular expression.
l=0;
while ( (l=myfilter.find(".",l)) != std::string::npos) {
myfilter.replace(l,1,"\\.");
l+=2;
}
l=0;
while ( (l=myfilter.find("*",l)) != std::string::npos) {
myfilter.replace(l,1,".*");
l+=2;
}
// Do the UNIX style directory list
DIR* dir = ::opendir(directory.c_str());
if (dir) {
struct dirent *ent;
struct stat stats;
regex_t preg;
::regcomp(&preg, myfilter.c_str(), REG_NOSUB);
while ( (ent=readdir(dir)) != NULL) {
if (::regexec(&preg, ent->d_name, 0, NULL, 0) == 0) {
::stat((directory+DIRSEP+ent->d_name).c_str(), &stats);
push_back(DirListItem(ent->d_name, stats.st_ctime, stats.st_size));
}
}
::regfree(&preg);
::closedir(dir);
}
#endif
}