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Support epoll instead of libevent #32

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robgjansen opened this issue Oct 27, 2011 · 0 comments
Closed

Support epoll instead of libevent #32

robgjansen opened this issue Oct 27, 2011 · 0 comments
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@robgjansen
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X-Archive: Shadow [Deprecated label.] Associated with the core Shadow code.
Milestone
release-1.3.0

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@robgjansen
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epoll is a system interface for polling buffers. The interface is much smaller and is built into the kernel. We should implement the interface for Shadow, intercept and redirect the epoll functions to Shadow's version, and remove support for the rather large libevent.
robgjansen added a commit that referenced this issue Oct 28, 2011
@robgjansen
Starting implementing the epoll system interface.
6343d96 
Epoll will replace our implementation of libevent, because its a much
smaller interface and we already kind of provide that functionality
anyway. Libevent uses epoll as a backend to get events on kernel
buffers.

None of the changes in this commit are used yet.

refs #32
robgjansen added a commit that referenced this issue Nov 15, 2011
@robgjansen
Main echo exe utilizing epoll interface.
a405ddd 
This will serve as a test of how well we conform to the OS epoll
interface.

refs #32
@ghost ghost assigned robgjansen Nov 16, 2011
robgjansen added a commit that referenced this issue Nov 17, 2011
@robgjansen
Towards generic implementation of descriptors with status monitors.
40ba203 
Descriptors notify listeners when they are readable/writable. Also,
partly implemented epoll devices to manage the task of
watching descriptors for events.

refs #32
robgjansen added a commit that referenced this issue Nov 17, 2011
@robgjansen
Completed basic epoll functionality.
1485cea 
Doesn't run echo plugin yet because other descriptor types need to be
integrated into the new descriptor system.

refs #32
robgjansen added a commit that referenced this issue Nov 17, 2011
@robgjansen
Stubbing new framework for sockets and transport interfaces.
37903c1 
refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Refactoring and rebuilding transport architecture.
c678b3b 
Implemented bind.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
More transport architecture.
7416f07 
    
Implemented connect.
    
refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Finished system interface for transport architecture.
d6c9fa3 
Still need to implement protocols and transport functionality.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Stubbed in socketpair creation.
c480b76 
refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Significant work on the network interface architecture.
0708445 
Building up the interface and transport layers. Reimplemented/refactored
most of the code using the old implementation as a guide. Also removed
the old code in src/virtual/* from the build.

Currently in a broken state, but builds fine.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Made node an opaque type.
c6a275f 
refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Setup send/receive/push/pull arch for all transport types.
76f3ff2 
refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Added low level transport layer buffers.
7dadf32 
refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Finished UDP protocol.
83f8125 
refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Echo example now runs over tcp and udp, and loopback or client/server.
2346134 
refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Fixed several bugs to get the UDP echo example running.
b8c3469 
The example produces consistent transfers. CPU delays have been
disabled, and currently are broken.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Adding a majority of TCP functionality.
9930beb 
Still missing packet processing for incoming packets. Builds, but wont
work until processing is in place.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
More TCP work, new state machine.
315c003 
Still no closing functionality or handling of reset packets.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Reliable TCP works.
ff9890b 
TCP retranmission problems exist due because we cant buffer packets that
have been sent but need to be retransmitted.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Fix descriptor listener names.
d9884c6 
Descriptors can be listed for activity, not just status changes. This is
needed to ensure we issue notifications when we need to.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Transport working for all reliable TCP/UDP and unreliable TCP delivery.
cb4233e 
All 6 Echo client tests pass:
reliable TCP/UDP over Eth/Lo (4 tests)
unreliable TCP over Eth/Lo (2 tests)

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Cleanup and implementing close.
24cc91c 
Still have not tested if closes are working properly.
Removed several files from the old Shadow implementation.

refs #32
robgjansen added a commit that referenced this issue Dec 1, 2011
@robgjansen
Close appears to be working.
a60f4ce 
Both client and server in Echo application are successfully going
through an entire connections and closing properly.

refs #32
robgjansen added a commit that referenced this issue Dec 5, 2011
@robgjansen
Finished close, reset handling.
fa8c432 
refs #32
robgjansen added a commit that referenced this issue Dec 5, 2011
@robgjansen
Split echo plugin so I can test pipe and socketpair.
f8f3f9f 
Also started intercepting some hostname DNS functions, since its likely
libevent will need some. (didnt implement them yet)

refs #32
robgjansen added a commit that referenced this issue Dec 5, 2011
@robgjansen
New data channel, socketpair and pipe working.
372caf0 
Added socketpair and pipe examples to the echo plugin. They work in both
the main and the shadow version of the Echo application. Slighlty
refactored linkedbuffer to bytequeue for use in the new channel class
for pipes.

refs #32
robgjansen added a commit that referenced this issue Dec 7, 2011
@robgjansen
Round 1 of memory fixes, thanks to valgrind.
4b43137 
Fixed a few issues valgrind found. Still a couple left.

refs #32
robgjansen added a commit that referenced this issue Dec 8, 2011
@robgjansen
Mixed all known memory leaks.
fd5600c 
Valgrind reports no memory leaks.

refs #32
@robgjansen robgjansen mentioned this issue Aug 15, 2012
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@lamiaaMB lamiaaMB mentioned this issue Jan 16, 2018
Closed
qincunrong pushed a commit to qincunrong/shadow that referenced this issue Nov 29, 2022
@shifujun
Merge pull request shadow#32 from SheepYang1993/add_isChangingConfigu…
d100330 
…rations

添加isChangingConfigurations()
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X-Archive: Shadow [Deprecated label.] Associated with the core Shadow code.
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