libmocha/source/devoptab/devoptab_fsa_statvfs.cpp

50 lines
1.7 KiB
C++

#include "devoptab_fs.h"
#include "logger.h"
#include <mutex>
int __fsa_statvfs(struct _reent *r,
const char *path,
struct statvfs *buf) {
FSError status;
uint64_t freeSpace;
memset(buf, 0, sizeof(struct statvfs));
char *fixedPath = __fsa_fixpath(r, path);
if (!fixedPath) {
r->_errno = ENOMEM;
return -1;
}
auto *deviceData = (FSADeviceData *) r->deviceData;
std::lock_guard<FastLockWrapper> lock(deviceData->mutex);
status = FSAGetFreeSpaceSize(deviceData->clientHandle, fixedPath, &freeSpace);
if (status < 0) {
DEBUG_FUNCTION_LINE_ERR("FSAGetFreeSpaceSize(0x%08X, %s, 0x%08X) failed: %s", deviceData->clientHandle, fixedPath, &freeSpace, FSAGetStatusStr(status));
free(fixedPath);
r->_errno = __fsa_translate_error(status);
return -1;
}
free(fixedPath);
// File system block size
buf->f_bsize = deviceData->deviceSectorSize;
// Fundamental file system block size
buf->f_frsize = deviceData->deviceSectorSize;
// Total number of blocks on file system in units of f_frsize
buf->f_blocks = deviceData->deviceSizeInSectors;
// Free blocks available for all and for non-privileged processes
buf->f_bfree = buf->f_bavail = (uint32_t) (freeSpace / buf->f_frsize);
// Number of inodes at this point in time
buf->f_files = 0xFFFFFFFF;
// Free inodes available for all and for non-privileged processes
buf->f_ffree = 0xFFFFFFFF;
// File system id
buf->f_fsid = (unsigned long) deviceData->clientHandle;
// Bit mask of f_flag values.
buf->f_flag = 0;
// Maximum length of filenames
buf->f_namemax = 255;
return 0;
}