[PATCH parted 1/5] libparted: add ped_device_get_xxx_aligment() functions

[Hans de Goede]

Add ped_device_get_minimal_aligment() and ped_device_get_optimal_aligment()
functions to libparted.
---
 include/parted/device.h  |    8 ++++++++
 include/parted/natmath.h |    1 +
 libparted/device.c       |   18 ++++++++++++++++++
 3 files changed, 27 insertions(+), 0 deletions(-)

diff --git a/include/parted/device.h b/include/parted/device.h
index 151305f..31aec86 100644
--- a/include/parted/device.h
+++ b/include/parted/device.h
@@ -92,6 +92,8 @@ struct _PedDevice {
         void*           arch_specific;
 };
 
+#include <parted/natmath.h>
+
 /**
  * List of functions implementing architecture-specific operations.
  */
@@ -112,6 +114,9 @@ struct _PedDeviceArchOps {
         PedSector (*check) (PedDevice* dev, void* buffer,
                             PedSector start, PedSector count);
         void (*probe_all) ();
+        /* These functions are optional */
+        PedAlignment* (*get_minimal_aligment)(PedDevice* dev);
+        PedAlignment* (*get_optimal_aligment)(PedDevice* dev);
 };
 
 #include <parted/constraint.h>
@@ -141,6 +146,9 @@ extern PedSector ped_device_check (PedDevice* dev, void* 
buffer,
                                    PedSector start, PedSector count);
 extern PedConstraint* ped_device_get_constraint (PedDevice* dev);
 
+extern PedAlignment* ped_device_get_minimal_aligment(PedDevice* dev);
+extern PedAlignment* ped_device_get_optimal_aligment(PedDevice* dev);
+
 /* private stuff ;-) */
 
 extern void _ped_device_probe (const char* path);
diff --git a/include/parted/natmath.h b/include/parted/natmath.h
index cd7679d..eaa84d1 100644
--- a/include/parted/natmath.h
+++ b/include/parted/natmath.h
@@ -31,6 +31,7 @@ typedef struct _PedAlignment  PedAlignment;
 
 #include <parted/disk.h>
 #include <parted/device.h>
+#include <parted/geom.h>
 
 #define PED_MIN(a, b)  ( ((a)<(b)) ? (a) : (b) )
 #define PED_MAX(a, b)  ( ((a)>(b)) ? (a) : (b) )
diff --git a/libparted/device.c b/libparted/device.c
index 294fec4..6a41512 100644
--- a/libparted/device.c
+++ b/libparted/device.c
@@ -444,5 +444,23 @@ ped_device_get_constraint (PedDevice* dev)
         return c;
 }
 
+PedAlignment*
+ped_device_get_minimal_aligment(PedDevice* dev)
+{
+        if (ped_architecture->dev_ops->get_minimal_aligment)
+                return ped_architecture->dev_ops->get_minimal_aligment(dev);
+
+        return NULL; /* ped_alignment_none */
+}
+
+PedAlignment*
+ped_device_get_optimal_aligment(PedDevice* dev)
+{
+        if (ped_architecture->dev_ops->get_optimal_aligment)
+                return ped_architecture->dev_ops->get_optimal_aligment(dev);
+
+        return NULL; /* ped_alignment_none */
+}
+
 /** @} */
 
-- 
1.6.5.1