hamidr/libevpp

An ASIO-like library for evented IO based on libEV for *nix systems

libev-

A high level C++1y event loop using libev.

libevpp's Issues

watcher for timer

multithread support

tests

more examples

documents

Closing socket from client side will cause a crash in the server[tcp_server example]

How to reproduce?
Run the only example(./build/a1.out | tcp_server's code ) in this code base and then run following ruby codes.

def close_from_client_crashs
  x = TCPSocket.new "localhost", 9090
  x.close
end

def close_from_server_is_okay
  x = TCPSocket.new "localhost", 9090
  x.puts "close"
  sleep(2)
  x.close if !x.closed?
end

close_from_server_is_okay
close_from_client_crashs

this will happen on the server side.

======= Backtrace: =========
/lib64/libc.so.6(+0x791fb)[0x7f22db2c01fb]
/lib64/libc.so.6(+0x8288a)[0x7f22db2c988a]
/lib64/libc.so.6(cfree+0x4c)[0x7f22db2cd2bc]
./a1.out(_ZNSt14_Function_base13_Base_managerISt5_BindIFSt7_Mem_fnIMN7libevpp7network12async_socketEFvPciRKSt8functionIFvlEEEEPS5_S6_iS9_EEE10_M_managerERSt9_Any_dataRKSJ_St18_Manager_operation+0x54)[0x409954]
./a1.out(_ZN7libevpp10event_loop14socket_watcher9call_readEv+0x9f)[0x40b17f]
/lib64/libev.so.4(ev_invoke_pending+0x53)[0x7f22dbeb9113]
/lib64/libev.so.4(ev_run+0x966)[0x7f22dbebc706]
./a1.out(main+0x39)[0x407549]
/lib64/libc.so.6(__libc_start_main+0xf1)[0x7f22db267401]
./a1.out(_start+0x2a)[0x4075aa]
======= Memory map: ========
00400000-0040f000 r-xp 00000000 08:09 10359442                           /home/hamid/adro/libevpp/build/a1.out
0060e000-0060f000 r--p 0000e000 08:09 10359442                           /home/hamid/adro/libevpp/build/a1.out
0060f000-00610000 rw-p 0000f000 08:09 10359442                           /home/hamid/adro/libevpp/build/a1.out
01430000-01462000 rw-p 00000000 00:00 0                                  [heap]
7f22d4000000-7f22d4021000 rw-p 00000000 00:00 0 
7f22d4021000-7f22d8000000 ---p 00000000 00:00 0 
7f22db247000-7f22db404000 r-xp 00000000 08:07 925496                     /usr/lib64/libc-2.24.so
7f22db404000-7f22db603000 ---p 001bd000 08:07 925496                     /usr/lib64/libc-2.24.so
7f22db603000-7f22db607000 r--p 001bc000 08:07 925496                     /usr/lib64/libc-2.24.so
7f22db607000-7f22db609000 rw-p 001c0000 08:07 925496                     /usr/lib64/libc-2.24.so
7f22db609000-7f22db60d000 rw-p 00000000 00:00 0 
7f22db60d000-7f22db623000 r-xp 00000000 08:07 925049                     /usr/lib64/libgcc_s-6.3.1-20161221.so.1
7f22db623000-7f22db822000 ---p 00016000 08:07 925049                     /usr/lib64/libgcc_s-6.3.1-20161221.so.1
7f22db822000-7f22db823000 r--p 00015000 08:07 925049                     /usr/lib64/libgcc_s-6.3.1-20161221.so.1
7f22db823000-7f22db824000 rw-p 00016000 08:07 925049                     /usr/lib64/libgcc_s-6.3.1-20161221.so.1
7f22db824000-7f22db92c000 r-xp 00000000 08:07 925632                     /usr/lib64/libm-2.24.so
7f22db92c000-7f22dbb2b000 ---p 00108000 08:07 925632                     /usr/lib64/libm-2.24.so
7f22dbb2b000-7f22dbb2c000 r--p 00107000 08:07 925632                     /usr/lib64/libm-2.24.so
7f22dbb2c000-7f22dbb2d000 rw-p 00108000 08:07 925632                     /usr/lib64/libm-2.24.so
7f22dbb2d000-7f22dbca5000 r-xp 00000000 08:07 926122                     /usr/lib64/libstdc++.so.6.0.22
7f22dbca5000-7f22dbea5000 ---p 00178000 08:07 926122                     /usr/lib64/libstdc++.so.6.0.22
7f22dbea5000-7f22dbeaf000 r--p 00178000 08:07 926122                     /usr/lib64/libstdc++.so.6.0.22
7f22dbeaf000-7f22dbeb1000 rw-p 00182000 08:07 926122                     /usr/lib64/libstdc++.so.6.0.22
7f22dbeb1000-7f22dbeb5000 rw-p 00000000 00:00 0 
7f22dbeb5000-7f22dbec2000 r-xp 00000000 08:07 925662                     /usr/lib64/libev.so.4.0.0
7f22dbec2000-7f22dc0c1000 ---p 0000d000 08:07 925662                     /usr/lib64/libev.so.4.0.0
7f22dc0c1000-7f22dc0c2000 r--p 0000c000 08:07 925662                     /usr/lib64/libev.so.4.0.0
7f22dc0c2000-7f22dc0c3000 rw-p 0000d000 08:07 925662                     /usr/lib64/libev.so.4.0.0
7f22dc0c3000-7f22dc0e8000 r-xp 00000000 08:07 928337                     /usr/lib64/ld-2.24.so
7f22dc2c9000-7f22dc2ce000 rw-p 00000000 00:00 0 
7f22dc2e5000-7f22dc2e8000 rw-p 00000000 00:00 0 
7f22dc2e8000-7f22dc2e9000 r--p 00025000 08:07 928337                     /usr/lib64/ld-2.24.so
7f22dc2e9000-7f22dc2ea000 rw-p 00026000 08:07 928337                     /usr/lib64/ld-2.24.so
7f22dc2ea000-7f22dc2eb000 rw-p 00000000 00:00 0 
7ffd7898c000-7ffd789ad000 rw-p 00000000 00:00 0                          [stack]
7ffd789e2000-7ffd789e4000 r--p 00000000 00:00 0                          [vvar]
7ffd789e4000-7ffd789e6000 r-xp 00000000 00:00 0                          [vdso]
ffffffffff600000-ffffffffff601000 r-xp 00000000 00:00 0                  [vsyscall]
[1]    17476 abort (core dumped)  ./a1.out