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Change Utils::Fs::freeDiskSpaceOnPath() signature

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refactor the function internals
This commit is contained in:
Chocobo1 2016-12-08 01:14:55 +08:00
parent 0b313e0bc3
commit 5cf86d3677
2 changed files with 28 additions and 35 deletions
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61
src/base/utils/fs.cpp
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@ -269,50 +269,43 @@ bool Utils::Fs::isValidFileSystemName(const QString &name, bool allowSeparators)
return !name.contains(regex);
}
qlonglong Utils::Fs::freeDiskSpaceOnPath(QString path)
qulonglong Utils::Fs::freeDiskSpaceOnPath(const QString &path)
{
if (path.isEmpty()) return -1;
QDir dir_path(path);
if (!dir_path.exists()) {
if (path.isEmpty()) return 0;
QDir dirPath(path);
if (!dirPath.exists()) {
QStringList parts = path.split("/");
while (parts.size() > 1 && !QDir(parts.join("/")).exists()) {
while (parts.size() > 1 && !QDir(parts.join("/")).exists())
parts.removeLast();
}
dir_path = QDir(parts.join("/"));
if (!dir_path.exists()) return -1;
dirPath = QDir(parts.join("/"));
if (!dirPath.exists()) return 0;
}
Q_ASSERT(dir_path.exists());
Q_ASSERT(dirPath.exists());
#if defined(Q_OS_WIN)
ULARGE_INTEGER bytesFree;
if (GetDiskFreeSpaceExW((LPCTSTR)(toNativePath(dir_path.path())).utf16(), &bytesFree, NULL, NULL) == 0)
return -1;
return qlonglong(bytesFree.QuadPart);
LPCWSTR nativePath = reinterpret_cast<LPCWSTR>((toNativePath(dirPath.path())).utf16());
if (GetDiskFreeSpaceExW(nativePath, &bytesFree, NULL, NULL) == 0)
return 0;
return bytesFree.QuadPart;
#elif defined(Q_OS_HAIKU)
unsigned long long available;
const QString statfs_path = dir_path.path() + "/.";
dev_t device = dev_for_path (qPrintable(statfs_path));
if (device >= 0) {
fs_info info;
if (fs_stat_dev(device, &info) == B_OK) {
available = ((unsigned long long)(info.free_blocks * info.block_size));
return available;
}
}
return -1;
const QString statfsPath = dirPath.path() + "/.";
dev_t device = dev_for_path(qPrintable(statfsPath));
if (device < 0)
return 0;
fs_info info;
if (fs_stat_dev(device, &info) != B_OK)
return 0;
return ((qulonglong) info.free_blocks * (qulonglong) info.block_size);
#else
unsigned long long available;
struct statfs stats;
const QString statfs_path = dir_path.path() + "/.";
const int ret = statfs(qPrintable(statfs_path), &stats);
if (ret == 0) {
available = ((unsigned long long)stats.f_bavail)
* ((unsigned long long)stats.f_bsize);
return available;
}
else {
return -1;
}
const QString statfsPath = dirPath.path() + "/.";
const int ret = statfs(qPrintable(statfsPath), &stats);
if (ret != 0)
return 0;
return ((qulonglong) stats.f_bavail * (qulonglong) stats.f_bsize);
#endif
}