X-Git-Url: http://git.tdb.fi/?p=libs%2Fcore.git;a=blobdiff_plain;f=source%2Ffs%2Fstat.cpp;h=e296ead3816b9317ecd44f0bc82bf6fbd12cbbed;hp=245dd4ea9e05e4510768343ad8a5ff62a066313f;hb=HEAD;hpb=e240e074ce15c17d644e378067c2941aefcd5611

diff --git a/source/fs/stat.cpp b/source/fs/stat.cpp
index 245dd4e..e296ead 100644
--- a/source/fs/stat.cpp
+++ b/source/fs/stat.cpp
@@ -1,161 +1,56 @@
-#ifdef WIN32
-#include <windows.h>
-#include <aclapi.h>
-#else
-#include <sys/stat.h>
-#include <grp.h>
-#include <pwd.h>
-#endif
-#include <msp/core/systemerror.h>
-#include <msp/strings/format.h>
-#include <msp/time/rawtime_private.h>
 #include "path.h"
 #include "stat.h"
+#include "stat_private.h"
 
 using namespace std;
 
-namespace {
-
-#ifdef WIN32
-string get_account_name(PSID sid)
-{
-	char name[1024];
-	DWORD nlen = sizeof(name);
-	char domain[1024];
-	DWORD dlen = sizeof(domain);
-	SID_NAME_USE use;
-	if(!LookupAccountSid(0, sid, name, &nlen, domain, &dlen, &use))
-		throw Msp::system_error("LookupAccountSid");
-	return Msp::format("%s/%s", name, domain);
-}
-#endif
-
-}
-
-
 namespace Msp {
 namespace FS {
 
-#ifndef WIN32
-struct Stat::Private
-{
-	static Stat from_struct_stat(const struct stat &);
-};
+Stat::Stat(const Stat &other):
+	exists(other.exists),
+	type(other.type),
+	size(other.type),
+	alloc_size(other.alloc_size),
+	mtime(other.mtime),
+	owner_info(other.owner_info),
+	priv(other.priv ? new Private(*other.priv) : nullptr)
+{ }
 
-Stat Stat::Private::from_struct_stat(const struct stat &st)
+Stat &Stat::operator=(const Stat &other)
 {
-	Stat result;
-	if(S_ISREG(st.st_mode))
-		result.type = REGULAR;
-	else if(S_ISDIR(st.st_mode))
-		result.type = DIRECTORY;
-	else if(S_ISLNK(st.st_mode))
-		result.type = SYMLINK;
-	else
-		result.type = UNKNOWN;
-	result.size = st.st_size;
-	result.alloc_size = st.st_blocks*512;
-	result.mtime = Time::TimeStamp::from_unixtime(st.st_mtime);
-
-	char buf[1024];
-
-	struct passwd pw;
-	struct passwd *owner;
-	if(!getpwuid_r(st.st_uid, &pw, buf, sizeof(buf), &owner) && owner)
-		result.owner = owner->pw_name;
-	else
-		result.owner = format("%d", st.st_uid);
-
-	struct group gr;
-	struct group *group;
-	if(!getgrgid_r(st.st_gid, &gr, buf, sizeof(buf), &group) && group)
-		result.group = group->gr_name;
-	else
-		result.group = format("%d", st.st_gid);
-
-	return result;
+	if(&other==this)
+		return *this;
+
+	exists = other.exists;
+	type = other.type;
+	size = other.size;
+	alloc_size = other.alloc_size;
+	mtime = other.mtime;
+	owner_info = other.owner_info;
+	delete priv;
+	priv = (other.priv ? new Private(*other.priv) : nullptr);
+
+	return *this;
 }
-#endif
 
-Stat::Stat():
-	type(UNKNOWN),
-	size(0),
-	alloc_size(0)
-{ }
-
-Stat Stat::stat(const Path &path)
+Stat::~Stat()
 {
-#ifdef WIN32
-	HANDLE handle;
-	handle = CreateFile(path.str().c_str(), 0, FILE_SHARE_READ, 0, OPEN_EXISTING, 0, 0);
-	if(handle==INVALID_HANDLE_VALUE)
-		throw system_error("CreateFile");
-
-	BY_HANDLE_FILE_INFORMATION info;
-	if(!GetFileInformationByHandle(handle, &info))
-	{
-		CloseHandle(handle);
-		throw system_error("GetFileInformationByHandle");
-	}
-
-	Stat result;
-	if(info.dwFileAttributes&FILE_ATTRIBUTE_DIRECTORY)
-		result.type = DIRECTORY;
-	else
-		result.type = REGULAR;
-
-	result.size = FileSize(info.nFileSizeHigh)<<32 | info.nFileSizeLow;
-	result.alloc_size = (result.size+511)&~511;
-	result.mtime = Time::TimeStamp(Time::filetime_to_rawtime(info.ftLastWriteTime));
-
-	PSECURITY_DESCRIPTOR sec_desc;
-	PSID owner;
-	PSID group;
-	if(!GetSecurityInfo(handle, SE_FILE_OBJECT, OWNER_SECURITY_INFORMATION|GROUP_SECURITY_INFORMATION, &owner, &group, 0, 0, &sec_desc))
-	{
-		CloseHandle(handle);
-		throw system_error("GetSecurityInfo");
-	}
-
-	result.owner = get_account_name(owner);
-	result.group = get_account_name(group);
-
-	LocalFree(sec_desc);
-
-	CloseHandle(handle);
-
-	return result;
-#else
-	struct stat st;
-	int ret = ::stat(path.str().c_str(), &st);
-	if(ret==-1)
-		throw system_error("stat");
-
-	return Private::from_struct_stat(st);
-#endif
+	delete priv;
 }
 
-Stat Stat::lstat(const Path &path)
+const string &Stat::get_owner() const
 {
-#ifdef WIN32
-	return stat(path);
-#else
-	struct stat st;
-	int ret = ::lstat(path.str().c_str(), &st);
-	if(ret==-1)
-		throw system_error("lstat");
-
-	return Private::from_struct_stat(st);
-#endif
+	if(priv && owner_info.owner.empty())
+		priv->fill_owner_info(owner_info);
+	return owner_info.owner;
 }
 
-bool exists(const Path &path)
+const string &Stat::get_group() const
 {
-#ifdef WIN32
-	return GetFileAttributes(path.str().c_str())!=INVALID_FILE_ATTRIBUTES;
-#else
-	return access(path.str().c_str(), F_OK)==0;
-#endif
+	if(priv && owner_info.group.empty())
+		priv->fill_owner_info(owner_info);
+	return owner_info.group;
 }
 
 } // namespace FS