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platform_system_core
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10 Commits

Author SHA1 Message Date
Daichi Hirono 6f6210dd5c Retry write operation when getting ENOBUFS. 
Previously libappfuse set SO_SNDBUF to the maximum message size. However
it does not prevent ENOBUF and it made AppFusePerfTest#testReadWriteFile
flaky.

The CL let FuseBuffer retry write operation when getting ENOBUFS.

Bug: 34903085
Test: libappfuse
Change-Id: I1602474d852e1599f6e69103bcf6f18277a5644b
 2017-03-31 01:50:50 +00:00
Daichi Hirono 0bb22bd50e Add FuseMessage::WriteWithBody function 
The funciton is going to be used to write FUSE header with external
body.

Bug: 35229514
Test: libappfuse_tests
Change-Id: I303022b555deca960b8e08f26140a5ef10133efe
 2017-03-23 01:04:15 +00:00
Daichi Hirono 57b780fbc3 Add ReadOrAgain and WriteOrAgain methods to FuseMessage. 
These methods return kAgain if operation cannot be done without blocking
the current thread.

The CL also introduecs new helper function SetupMessageSockets so that
FuseMessages are always transfered via sockets that save message
boundaries.

Bug: 34903085
Test: libappfuse_test
Change-Id: I34544372cc1b0c7bc9622e581ae16c018a123fa9
 2017-03-14 09:09:29 +09:00
Daichi Hirono cb9153bf43 Support SOCK_STREAM for bridge between system and app 
Previously AppFuse use SOCK_SEQPACKET for sockets communicating system
and app. However SOCK_SEQPACKET requires the buffer of message size in
the kernel and sometimes failed to write with ENOBUF.

The CL updates libappfuse so that it can use SOCK_STREAM instead of
SOCK_SEQPACKET.

Bug: 33279206
Test: libappfuse_test
Change-Id: I622ada9ac1d71d0c57b6cfff0904c7829cea7995
 2016-12-12 14:53:03 +09:00
Daichi Hirono a6373ec1d4 Fix checks for reading and writing FuseMessage. 
Previously FuseMessage were checking result of read/write operation
after checking header.len value is valid. This was wrong because
header.len does not contain correct value when read function does not
read any bytes and returns zero.

Bug: 33278098
Test: libappfuse_test
Change-Id: Icf998ca6c3eeee20cbc4aa2f65195a87e59ffc27
 2016-12-12 14:34:29 +09:00
Treehugger Robot c884f80755 Merge "Use FUSE_COMPAT_22_INIT_OUT_SIZE always if available." 2016-11-16 03:57:46 +00:00
Daichi Hirono 471ad6a59d Use FUSE_COMPAT_22_INIT_OUT_SIZE always if available. 
We return the minor version number 15 to FUSE_INIT since we don't handle
BATCH_FORGET. Thus the kernel does not accept the latest size of
fuse_init_out. Instead we need to use FUSE_COMPAT_22_INIT_OUT_SIZE.

Bug: 32779923
Test: libappfuse_test

Change-Id: I5c979d0e45344ca8adfe3ad3f4a9561442abcb3a
 2016-11-16 01:56:00 +00:00
Daichi Hirono 0d97be4d7d Add static assert to check if FuseBuffer is standard layout union. 
Bug: 32260320
Test: libappfuse_test
Change-Id: I6430c11fdeb2405996410c97044b4260c25209b8
 2016-11-15 10:18:37 +09:00
Daichi Hirono a0aecda12b Add FuseAppLoop to libappfuse. 
The class is used at the app side (StorageManager) to parse FUSE
commands.

Bug: 32260320
Test: libappfuse_test
Change-Id: I1ae2904d3290a041f1efbf8fc10ba032eda5449c
 2016-11-15 09:47:31 +09:00
Daichi Hirono c613476297 Add FuseBridgeLoop to libappfuse. 
The CL adds FuseBridgeLoop class to libappfuse, which is used in the
system service to proxy fuse commands to applications.

Bug: 29970149
Test: libappfuse_test
Change-Id: I0708f608b3868721ab16ba4028fd2c17a6735af7
 2016-10-27 15:04:15 +09:00