Version 0.7.0
diff --git a/diskio-unix.cc b/diskio-unix.cc
index d65a644..238e529 100644
--- a/diskio-unix.cc
+++ b/diskio-unix.cc
@@ -22,6 +22,11 @@
#include <errno.h>
#include <fcntl.h>
#include <sys/stat.h>
+
+#ifdef __linux__
+#include "linux/hdreg.h"
+#endif
+
#include <iostream>
#include "diskio.h"
@@ -160,6 +165,42 @@
return (blockSize);
} // DiskIO::GetBlockSize()
+// Returns the number of heads, according to the kernel, or 255 if the
+// correct value can't be determined.
+uint32_t DiskIO::GetNumHeads(void) {
+ uint32_t numHeads = 255;
+
+#ifdef HDIO_GETGEO
+ struct hd_geometry geometry;
+
+ // If disk isn't open, try to open it....
+ if (!isOpen)
+ OpenForRead();
+
+ if (!ioctl(fd, HDIO_GETGEO, &geometry))
+ numHeads = (uint32_t) geometry.heads;
+#endif
+ return numHeads;
+} // DiskIO::GetNumHeads();
+
+// Returns the number of sectors per track, according to the kernel, or 63
+// if the correct value can't be determined.
+uint32_t DiskIO::GetNumSecsPerTrack(void) {
+ uint32_t numSecs = 63;
+
+ #ifdef HDIO_GETGEO
+ struct hd_geometry geometry;
+
+ // If disk isn't open, try to open it....
+ if (!isOpen)
+ OpenForRead();
+
+ if (!ioctl(fd, HDIO_GETGEO, &geometry))
+ numSecs = (uint32_t) geometry.sectors;
+ #endif
+ return numSecs;
+} // DiskIO::GetNumSecsPerTrack()
+
// Resync disk caches so the OS uses the new partition table. This code varies
// a lot from one OS to another.
void DiskIO::DiskSync(void) {