if dev->d_flags is POLICY_1, the circbuf cannot be initialized incorrectly.
We determine whether the circbuf should be initialized based on first reference on device and d_buffer is NULL
Signed-off-by: wangchen <wangchen41@xiaomi.com>
From the current implementation,udp localsoket receiver's pipe is closed, the sender write failed in the pipe;
we change the implementation to check if buffer is free(PIPE_IS_POLICY_0),if not free,the sender could write in the pipe;
From the current implementation,udp localsoket sender's pipe is empty,the recevier directly return end of file;
we change the implementation to check if buffer is free(PIPE_IS_POLICY_0),if not free,the receiver wait for data
Signed-off-by: wangchen <wangchen41@xiaomi.com>
thread1 thread2
open pipe open pipe
close()
-> pipecommon_close()
-> check inode refs
-> do NOT free dev close()
-> pipecommon_close()
-> check inode refs
-> do NOT free dev
-> inode_release
inode refs--
-> inode_release
inode refs--
Then, you will see the pipe hasn't free its resource, memleak
Resolve:
replace the inode refs with priv refs
Signed-off-by: ligd <liguiding1@xiaomi.com>
Both the device and the pipe used the FSNODEFLAG_TYPE_DRIVER type before,
and now add an independent pipe type
Signed-off-by: yinshengkai <yinshengkai@xiaomi.com>
The fd of pipe type is not supported by mmap, mmap() shall failed
with ENODEV. If pipe mmap is not implemented, mmap will forward to
rammap() and get unexpected error.
Implement pipe mmap just return ENODEV. That is to pass LTP posix
test case mmap/23-1.c
https://pubs.opengroup.org/onlinepubs/9699919799/functions/mmap.html
Signed-off-by: fangxinyong <fangxinyong@xiaomi.com>
1. Update all CMakeLists.txt to adapt to new layout
2. Fix cmake build break
3. Update all new file license
4. Fully compatible with current compilation environment(use configure.sh or cmake as you choose)
------------------
How to test
From within nuttx/. Configure:
cmake -B build -DBOARD_CONFIG=sim/nsh -GNinja
cmake -B build -DBOARD_CONFIG=sim:nsh -GNinja
cmake -B build -DBOARD_CONFIG=sabre-6quad/smp -GNinja
cmake -B build -DBOARD_CONFIG=lm3s6965-ek/qemu-flat -GNinja
(or full path in custom board) :
cmake -B build -DBOARD_CONFIG=$PWD/boards/sim/sim/sim/configs/nsh -GNinja
This uses ninja generator (install with sudo apt install ninja-build). To build:
$ cmake --build build
menuconfig:
$ cmake --build build -t menuconfig
--------------------------
2. cmake/build: reformat the cmake style by cmake-format
https://github.com/cheshirekow/cmake_format
$ pip install cmakelang
$ for i in `find -name CMakeLists.txt`;do cmake-format $i -o $i;done
$ for i in `find -name *\.cmake`;do cmake-format $i -o $i;done
Co-authored-by: Matias N <matias@protobits.dev>
Signed-off-by: chao an <anchao@xiaomi.com>
Similar to the fix introduced by
4d6a8663fa, it's necessary to set
one end of the file_pipe as non-blocking temporarily while opening
the other end to avoid it blocking unexpectedily.
According to https://pubs.opengroup.org/onlinepubs/9699919799/functions/open.html
"
When opening a FIFO with O_RDONLY or O_WRONLY set:
* If O_NONBLOCK is set, an open() for reading-only shall return
without delay. An open() for writing-only shall return an error
if no process currently has the file open for reading.
* If O_NONBLOCK is clear, an open() for reading-only shall block
the calling thread until a thread opens the file for writing.
An open() for writing-only shall block the calling thread until
a thread opens the file for reading.
"
This commit has an equivalent on nuttx-apps: EXAMPLES_PIPE app
was updated to be able to check pipes and named pipes behavior.
since mmap may exist in block_operations, but truncate may not,
moving mmap beforee truncate could make three struct more compatible
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
- Add mmap into file_operations and remove it from ioctl definitions.
- Add mm_map structure definitions to support future unmapping
- Modify all drivers to initialize the operations struct accordingly
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
- Add truncate into file_operations
- Move truncate to be common for mountpt_operations and file_operations
- Modify all drivers to initialize the operations struct accordingly
Signed-off-by: Jukka Laitinen <jukkax@ssrc.tii.ae>
since both values have to typedef pipe_ndx_t to uint16_t,
it doesn't make sense to limit the size smaller than 65535
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
so pty don't need call nx_pipe and then file_detach
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: Ibb8d108abd76bafe53897e5fca35babcf3e1bae9
"event & POLLOUT"(not "event | POLLOUT") should be used to check POLLOUT is set
Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
Change-Id: I09af7669a1c8ee46118b904d2c5946ecb99e6215
There is a good case on sim platform:
When we input some cmd and click enter key to start application in terminal,
this context will change to application from IDLE loop. Althrough entey key '\r'
has been received to recv buffer and complete post semaphore of reader, but
pollnotify may not be called because context change. So when application run
poll function, because no events happend and poll enter wait, context will
again change to IDLE loop, this pollnotify of IDLE loop will run to send poll
events, poll function of applicaton will wake up. It's wrong!
Change-Id: I812a889f2e90781a9c3cb4b0251cccc4d32bebd1
Signed-off-by: dongjiuzhu <dongjiuzhu1@xiaomi.com>
