embox

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// A simple client-side HTTP-style test that does a connect, sends a
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// short request, and receives a short response.
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/*
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// Create a socket and set it to non-blocking.
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0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
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0.000 fcntl(3, F_GETFL) = 0x2 (flags O_RDWR)
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0.000 fcntl(3, F_SETFL, O_RDWR|O_NONBLOCK) = 0
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// Establish connection and verify that there was no error.
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0.100 connect(3, ..., ...) = -1 EINPROGRESS (Operation now in progress)
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0.100 > S 0:0(0) <mss 1460,sackOK,TS val 100 ecr 0,nop,wscale 6>
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0.200 < S. 0:0(0) ack 1 win 5792 <mss 1460,sackOK,TS val 700 ecr 100,nop,wscale 7>
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0.200 > . 1:1(0) ack 1 <nop,nop,TS val 200 ecr 700>
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0.200 getsockopt(3, SOL_SOCKET, SO_ERROR, [0], [4]) = 0
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0.200 fcntl(3, F_SETFL, O_RDWR) = 0   // set back to blocking
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// Send the HTTP request.
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0.200 write(3, ..., 57) = 57
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0.200 > P. 1:58(57) ack 1 <nop,nop,TS val 200 ecr 700>
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0.300 < . 1:1(0) ack 58 win 92 <nop,nop,TS val 800 ecr 200>
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// Receive the HTTP response and the server's FIN.
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0.300 < P. 1:786(785) ack 58 win 92 <nop,nop,TS val 800 ecr 200>
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0.300 > . 58:58(0) ack 786 <nop,nop,TS val 300 ecr 800>
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0.300 < F. 786:786(0) ack 58 win 92 <nop,nop,TS val 800 ecr 200>
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0.300 read(3, ..., 1024) = 785
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0.300 read(3, ..., 1024) = 0
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// Delayed ACK.
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0.340 > . 58:58(0) ack 787 <nop,nop,TS val 300 ecr 800>
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// Close the connection.
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0.350 close(3) = 0
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0.350 > F. 58:58(0) ack 787 <nop,nop,TS val 300 ecr 800>
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0.450 < . 787:787(0) ack 59 win 92 <nop,nop,TS val 900 ecr 300>
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*/
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// Create a socket.
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0.000 socket(..., SOCK_STREAM, IPPROTO_TCP) = 3
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0.100...0.200 connect(3, ..., ...) = 0
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// Establish a connection.
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0.100 > S  0:0(0) win 16384 <mss 16396,nop,wscale 7>
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0.200 < S. 0:0(0) ack 1 win 16384 <mss 16396,nop,wscale 7>
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0.200 > .  1:1(0) ack 1
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0.300 close(3) = 0
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