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Commit 370226e6 authored by David Anderson's avatar David Anderson
Browse files

libdm: Add a helper function for GetState+DeleteDevice checks. 

Bug: N/A
Test: manual test
Change-Id: Ie97b63b53f548af1e82b73893fa491fac42b32ea
parent 63fe0e9a

fs_mgr/libdm/dm.cpp

+7 −0
Original line number Diff line number Diff line
@@ -79,6 +79,13 @@ bool DeviceMapper::CreateDevice(const std::string& name, const std::string& uuid 
    return true;

}



bool DeviceMapper::DeleteDeviceIfExists(const std::string& name) {

    if (GetState(name) == DmDeviceState::INVALID) {

        return true;

    }

    return DeleteDevice(name);

}



bool DeviceMapper::DeleteDevice(const std::string& name) {

    struct dm_ioctl io;

    InitIo(&io, name);

fs_mgr/libdm/include/libdm/dm.h

+1 −0
Original line number Diff line number Diff line
@@ -89,6 +89,7 @@ class DeviceMapper final { 
    // Removes a device mapper device with the given name.

    // Returns 'true' on success, false otherwise.

    bool DeleteDevice(const std::string& name);

    bool DeleteDeviceIfExists(const std::string& name);



    // Fetches and returns the complete state of the underlying device mapper

    // device with given name.