Messages in this thread | | | Date | Wed, 4 Oct 2017 09:20:30 +0200 | From | Greg KH <> | Subject | Re: [PATCHv2 1/1] [tools]: android/ion: userspace test utility for ion buffer sharing |
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On Tue, Oct 03, 2017 at 12:48:59PM -0400, Pintu Agarwal wrote: > This is a test utility to verify ION buffer sharing in user space > between 2 independent processes. > It uses unix domain socket as IPC to transfer an FD to another process > and install it. > > This utility demonstrates how ION buffer sharing can be implemented between > two user space processes, using various heap ids. > > This utility is verified on Ubuntu 32-bit machine using 2 independent > process such as: ionapp_export (server) and ionapp_import (client). > First the server needs to be run to export FD to the client. > This utility works only if /dev/ion interface is present. > > Here is a sample demo example: > > linux/tools/android/ion$ sudo ./ionapp_export.out -i 1 -s 10 > heap_type: 2, heap_size: 10 > Fill buffer content: > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > Sharing fd: 6, Client fd: 5 > <ion_close_buffer_fd>: buffer release successfully.... > > linux/tools/android/ion$ sudo ./ionapp_import.out > Received buffer fd: 4 > Read buffer content: > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 > 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 0x0 > Fill buffer content: > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd 0xfd > <ion_close_buffer_fd>: buffer release successfully....
Can you tie this into the kselftest framework, to make automated tests of this kernel feature easier?
thanks,
greg k-h
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