45 lines
11 KiB
Plaintext
45 lines
11 KiB
Plaintext
(notonline)-->
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<span style="color: #000080;font-style:italic;">-- demo\rosetta\EchoServer.exw</span>
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<span style="color: #008080;">without</span> <span style="color: #008080;">js</span>
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<span style="color: #008080;">include</span> <span style="color: #000000;">builtins</span><span style="color: #0000FF;">\</span><span style="color: #000000;">sockets</span><span style="color: #0000FF;">.</span><span style="color: #000000;">e</span>
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<span style="color: #008080;">constant</span> <span style="color: #000000;">ESCAPE</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">#1B</span>
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<span style="color: #008080;">procedure</span> <span style="color: #000000;">echo</span><span style="color: #0000FF;">(</span><span style="color: #004080;">atom</span> <span style="color: #000000;">sockd</span><span style="color: #0000FF;">)</span>
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<span style="color: #0000FF;">?{</span><span style="color: #008000;">"socket opened"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">sockd</span><span style="color: #0000FF;">}</span>
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<span style="color: #004080;">string</span> <span style="color: #000000;">buffer</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">""</span>
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<span style="color: #004080;">integer</span> <span style="color: #000000;">bytes_sent</span>
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<span style="color: #004080;">bool</span> <span style="color: #000000;">first</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">true</span>
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<span style="color: #008080;">while</span> <span style="color: #004600;">true</span> <span style="color: #008080;">do</span>
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<span style="color: #0000FF;">{</span><span style="color: #004080;">integer</span> <span style="color: #000000;">len</span><span style="color: #0000FF;">,</span> <span style="color: #004080;">string</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">recv</span><span style="color: #0000FF;">(</span><span style="color: #000000;">sockd</span><span style="color: #0000FF;">)</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">len</span><span style="color: #0000FF;"><=</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span> <span style="color: #008080;">exit</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">first</span> <span style="color: #008080;">then</span>
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<span style="color: #000000;">bytes_sent</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">send</span><span style="color: #0000FF;">(</span><span style="color: #000000;">sockd</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- partial echo, see note</span>
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<span style="color: #000000;">first</span> <span style="color: #0000FF;">=</span> <span style="color: #004600;">false</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #000000;">buffer</span> <span style="color: #0000FF;">&=</span> <span style="color: #000000;">s</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">s</span><span style="color: #0000FF;">[$]=</span><span style="color: #008000;">'\n'</span> <span style="color: #008080;">then</span>
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<span style="color: #000000;">bytes_sent</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">send</span><span style="color: #0000FF;">(</span><span style="color: #000000;">sockd</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">buffer</span><span style="color: #0000FF;">)</span>
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<span style="color: #000000;">buffer</span> <span style="color: #0000FF;">=</span> <span style="color: #008000;">""</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
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<span style="color: #0000FF;">?{</span><span style="color: #008000;">"socket disconnected"</span><span style="color: #0000FF;">,</span><span style="color: #000000;">sockd</span><span style="color: #0000FF;">}</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">procedure</span>
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<span style="color: #004080;">atom</span> <span style="color: #000000;">list_s</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">socket</span><span style="color: #0000FF;">(</span><span style="color: #000000;">AF_INET</span><span style="color: #0000FF;">,</span><span style="color: #000000;">SOCK_STREAM</span><span style="color: #0000FF;">,</span><span style="color: #004600;">NULL</span><span style="color: #0000FF;">),</span>
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<span style="color: #000000;">pSockAddr</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">sockaddr_in</span><span style="color: #0000FF;">(</span><span style="color: #000000;">AF_INET</span><span style="color: #0000FF;">,</span> <span style="color: #008000;">""</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">12321</span><span style="color: #0000FF;">)</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">list_s</span><span style="color: #0000FF;"><</span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">?</span><span style="color: #000000;">9</span><span style="color: #0000FF;">/</span><span style="color: #000000;">0</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">if</span> <span style="color: #7060A8;">bind</span><span style="color: #0000FF;">(</span><span style="color: #000000;">list_s</span><span style="color: #0000FF;">,</span> <span style="color: #000000;">pSockAddr</span><span style="color: #0000FF;">)=</span><span style="color: #000000;">SOCKET_ERROR</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"bind (%v)"</span><span style="color: #0000FF;">,{</span><span style="color: #7060A8;">get_socket_error</span><span style="color: #0000FF;">()})</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">if</span> <span style="color: #7060A8;">listen</span><span style="color: #0000FF;">(</span><span style="color: #000000;">list_s</span><span style="color: #0000FF;">,</span><span style="color: #000000;">100</span><span style="color: #0000FF;">)=</span><span style="color: #000000;">SOCKET_ERROR</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"listen (%v)"</span><span style="color: #0000FF;">,{</span><span style="color: #7060A8;">get_socket_error</span><span style="color: #0000FF;">()})</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #7060A8;">puts</span><span style="color: #0000FF;">(</span><span style="color: #000000;">1</span><span style="color: #0000FF;">,</span><span style="color: #008000;">"echo server started, press escape or q to exit\n"</span><span style="color: #0000FF;">)</span>
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<span style="color: #008080;">while</span> <span style="color: #008080;">not</span> <span style="color: #7060A8;">find</span><span style="color: #0000FF;">(</span><span style="color: #7060A8;">get_key</span><span style="color: #0000FF;">(),{</span><span style="color: #000000;">ESCAPE</span><span style="color: #0000FF;">,</span><span style="color: #008000;">'q'</span><span style="color: #0000FF;">,</span><span style="color: #008000;">'Q'</span><span style="color: #0000FF;">})</span> <span style="color: #008080;">do</span>
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<span style="color: #0000FF;">{</span><span style="color: #004080;">integer</span> <span style="color: #000000;">code</span><span style="color: #0000FF;">}</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">select</span><span style="color: #0000FF;">({</span><span style="color: #000000;">list_s</span><span style="color: #0000FF;">},{},{},</span><span style="color: #000000;">250000</span><span style="color: #0000FF;">)</span> <span style="color: #000080;font-style:italic;">-- (0.25s)</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">code</span><span style="color: #0000FF;">=</span><span style="color: #000000;">SOCKET_ERROR</span> <span style="color: #008080;">then</span> <span style="color: #7060A8;">crash</span><span style="color: #0000FF;">(</span><span style="color: #008000;">"select (%v)"</span><span style="color: #0000FF;">,{</span><span style="color: #7060A8;">get_socket_error</span><span style="color: #0000FF;">()})</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">code</span><span style="color: #0000FF;">></span><span style="color: #000000;">0</span> <span style="color: #008080;">then</span> <span style="color: #000080;font-style:italic;">-- (not timeout)</span>
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<span style="color: #004080;">atom</span> <span style="color: #000000;">conn_s</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">accept</span><span style="color: #0000FF;">(</span><span style="color: #000000;">list_s</span><span style="color: #0000FF;">)</span>
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<span style="color: #008080;">if</span> <span style="color: #000000;">conn_s</span><span style="color: #0000FF;">=</span><span style="color: #000000;">SOCKET_ERROR</span> <span style="color: #008080;">then</span> <span style="color: #0000FF;">?</span><span style="color: #000000;">9</span><span style="color: #0000FF;">/</span><span style="color: #000000;">0</span> <span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #004080;">atom</span> <span style="color: #000000;">hThread</span> <span style="color: #0000FF;">=</span> <span style="color: #000000;">create_thread</span><span style="color: #0000FF;">(</span><span style="color: #000000;">echo</span><span style="color: #0000FF;">,{</span><span style="color: #000000;">conn_s</span><span style="color: #0000FF;">})</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">if</span>
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<span style="color: #008080;">end</span> <span style="color: #008080;">while</span>
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<span style="color: #000000;">list_s</span> <span style="color: #0000FF;">=</span> <span style="color: #7060A8;">closesocket</span><span style="color: #0000FF;">(</span><span style="color: #000000;">list_s</span><span style="color: #0000FF;">)</span>
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<span style="color: #7060A8;">WSACleanup</span><span style="color: #0000FF;">()</span>
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<!--
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