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4 files changed, 107 insertions, 0 deletions

diff --git a/comm/FIGURES/buffer.tex b/comm/FIGURES/buffer.tex
new file mode 100755
index 0000000..d17e56a
--- /dev/null
+++ b/comm/FIGURES/buffer.tex
@@ -0,0 +1,37 @@
+\setlength{\unitlength}{0.11mm}
+\begin{picture}(1060,420)(-540,400)
+\put(280,720){\small\sf $<<$ ...}
+\put(-240,720){\small\sf $>>$ ...}
+\put(200,440){}
+\put(280,760){\small\sf Append (...)}
+\put(-240,760){\small\sf Get (...)}
+\put(260,740){\thicklines\vector(-3,-4){80}}
+\put(-340,640){\thicklines\vector(3,4){80}}
+\put(120,560){\line(1,1){40}}
+\put(80,560){\line(1,1){80}}
+\put(40,560){\line(1,1){120}}
+\put(0,560){\line(1,1){120}}
+\put(-40,560){\line(1,1){120}}
+\put(-80,560){\line(1,1){120}}
+\put(-120,560){\line(1,1){120}}
+\put(-160,560){\line(1,1){120}}
+\put(-200,560){\line(1,1){120}}
+\put(-240,560){\line(1,1){120}}
+\put(-280,560){\line(1,1){120}}
+\put(-320,560){\line(1,1){120}}
+\put(-360,560){\line(1,1){120}}
+\put(-360,600){\line(1,1){80}}
+\put(-360,640){\line(1,1){40}}
+\put(440,500){\vector(1,0){40}}
+\put(200,500){\vector(-1,0){40}}
+\put(-20,500){\vector(1,0){180}}
+\put(-260,500){\vector(-1,0){100}}
+\put(-400,440){\small\sf Buffer ()}
+\put(120,440){\small\sf Free ()}
+\put(200,500){\small\sf FreeLength ()}
+\put(-240,500){\small\sf BufLength ()}
+\put(160,480){\vector(0,1){80}}
+\put(-360,480){\vector(0,1){80}}
+\put(-360,560){\framebox(520,120){}}
+\put(-500,560){\framebox(980,120){}}
+\end{picture}
diff --git a/comm/FIGURES/clientserver.tex b/comm/FIGURES/clientserver.tex
new file mode 100755
index 0000000..0ad043c
--- /dev/null
+++ b/comm/FIGURES/clientserver.tex
@@ -0,0 +1,33 @@
+\setlength{\unitlength}{0.11mm}
+\begin{picture}(1040,668)(-460,160)
+\put(-360,580){\line(1,0){40}}
+\put(-360,480){\line(1,0){40}}
+\put(-360,380){\line(1,0){40}}
+\put(-360,640){\line(0,-1){260}}
+\put(280,200){\small clients}
+\put(-300,200){\small server}
+\put(60,240){\small network}
+\put(120,340){\line(1,0){200}}
+\put(-140,380){\line(1,0){260}}
+\put(120,420){\thicklines\line(0,-1){140}}
+\put(420,340){\oval(280,160)}
+\put(-140,480){\line(5,1){300}}
+\put(-140,580){\line(2,1){300}}
+\put(260,540){\oval(280,160)}
+\put(260,720){\oval(280,160)}
+\put(320,300){\framebox(200,80){}}
+\put(160,500){\framebox(200,80){}}
+\put(160,680){\framebox(200,80){}}
+\put(340,320){\small\sf SERVICE}
+\put(180,520){\small\sf SERVICE}
+\put(180,700){\small\sf SERVICE}
+\put(-250,530){\oval(380,460)}
+\put(-320,340){\framebox(180,80){}}
+\put(-320,440){\framebox(180,80){}}
+\put(-320,540){\framebox(180,80){}}
+\put(-380,640){\framebox(200,80){}}
+\put(-300,360){\small\sf CLIENT}
+\put(-300,460){\small\sf CLIENT}
+\put(-300,560){\small\sf CLIENT}
+\put(-360,660){\small\sf SERVER}
+\end{picture}
diff --git a/comm/FIGURES/evreq.tex b/comm/FIGURES/evreq.tex
new file mode 100755
index 0000000..cb7921d
--- /dev/null
+++ b/comm/FIGURES/evreq.tex
@@ -0,0 +1,23 @@
+\setlength{\unitlength}{0.11mm}
+\begin{picture}(1080,488)(-500,340)
+\put(-320,500){\line(1,0){40}}
+\put(-260,600){\small\sf CLIENT}
+\put(280,600){\small\sf SERVICE}
+\put(-380,700){\small\sf SERVER}
+\put(-280,560){\framebox(180,100){}}
+\put(-400,680){\framebox(200,80){}}
+\put(260,580){\framebox(200,80){}}
+\put(-250,620){\oval(420,360)}
+\put(390,570){\oval(340,260)}
+\put(-100,600){\thicklines\vector(1,0){360}}
+\put(260,640){\thicklines\vector(-1,0){360}}
+\put(20,660){\small requests}
+\put(-20,560){\small events, errors}
+\put(-320,680){\line(0,-1){220}}
+\put(-320,620){\line(1,0){40}}
+\put(320,500){\small\sf EVQUEUE}
+\put(300,480){\framebox(220,60){}}
+\put(320,580){\thicklines\vector(0,-1){40}}
+\put(-320,380){\small server}
+\put(340,380){\small client}
+\end{picture}
diff --git a/comm/FIGURES/socketclasses.tex b/comm/FIGURES/socketclasses.tex
new file mode 100755
index 0000000..f592a0a
--- /dev/null
+++ b/comm/FIGURES/socketclasses.tex
@@ -0,0 +1,14 @@
+\setlength{\unitlength}{0.11mm}
+\begin{picture}(500,340)(-360,460)
+\put(-220,580){\line(0,-1){40}}
+\put(-180,740){\small\sf CHANNEL}
+\put(-180,660){\small\sf SOCKET}
+\put(-320,580){\small\sf DATAGRAM}
+\put(-280,500){\small\sf DGRAM}
+\put(-60,580){\small\sf STREAM}
+\put(-80,500){\small\sf MSTREAM}
+\put(-100,740){\line(0,-1){40}}
+\put(-100,660){\line(-2,-1){80}}
+\put(-100,660){\line(2,-1){80}}
+\put(20,580){\line(0,-1){40}}
+\end{picture}