From 6014036852956c6eac03afa6227cde544e0463a8 Mon Sep 17 00:00:00 2001 From: txiong000 Date: Wed, 20 Feb 2019 14:12:58 -0600 Subject: [PATCH 1/6] Process init commit --- ex2/ex2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/ex2/ex2.c b/ex2/ex2.c index 4245375b9..23182d10e 100644 --- a/ex2/ex2.c +++ b/ex2/ex2.c @@ -9,6 +9,7 @@ int main(void) { // Your code here - + fp = fopen("text.txt", "w"); + return 0; } From 15a0c6a45ecc7afb1e3e1c037bbe74d95262fbd3 Mon Sep 17 00:00:00 2001 From: txiong000 Date: Wed, 20 Feb 2019 14:39:09 -0600 Subject: [PATCH 2/6] ex1 fin --- ex1/ex1 | Bin 0 -> 8344 bytes ex1/ex1.c | 17 +++++++++++++++++ 2 files changed, 17 insertions(+) create mode 100644 ex1/ex1 diff --git a/ex1/ex1 b/ex1/ex1 new file mode 100644 index 0000000000000000000000000000000000000000..e11598f8c655bac9bdcc6ae76d63ccb550a12ba1 GIT binary patch literal 8344 zcmeHMeQaDu5ntcMiIX_zi<7iYQplwwRZ{T9&WGdBruF&r895(K?LZ;P>)CgkC}b* zJHPjQCKW>BpRDz6c78iEJ3G5?-|YIcEgh}Ck`jgDR}U%Xj+fdv%5c@Tfkb!R&TRv+>VZTuJ6t_nUsqkX zGn`3dh43NOHJ>s`s+iVZ@d1hH&_=B zRo{1MCdp6{Y4)eG2!7uJ_~V3!=<${m0U<9){N422TLfQDSh0Q;#jl6MRi}DW=_l1t zI+3(`m1*`2N6p?uGCGiWCQdAinHejZw#>n3BB|Os+8dk9?cwd=UCM0l+-Jt(>3Clv zW5v^*`I?1j}(3|C>H{ULJZ?N8v z%iI?ZBP;!;AwLSG1|03(l_@ z)+IMwbl~y|YI$Sy?K0zJ>Gzg}l=0kz<;!0*MqewNRQX+Lg7TX!`mNZ|KsDz3S?Ai7 zJeAE)FwaA~c2V=6Bfj^PHcCIW@3iMG9W!!&GDfdXAMETHD_uwK7-K75CKY3B@1IE~ zzow3K{!y`k7B@kU5z}Ril|Dk$*fV3~-n7<|Ys;7=*H#?OU+E23Y&fC2I6BE*&GDqa zmIcRlRcbR^XGz~UH|sZY)5f`}hmDf+#-&-SiVR*_Y8xzPgA3U^zV`x&sq8jmbnh9i zb+JF?#>u^}5I41ghCF4^&-v1C5MRRX9B0Sgog|Yq9u_}(t(PRYMo|v_tYwDdH1*Tj zd_LE5bM!MeRd&b8mYLjn@_i*mWt{b=zD&&|%I_l@Z&BTDe2N-b@!5jnf?9Dr-nm`OlWg#nO#Yyp4LoDI-N>yq#>x1_5KIyiSqhC zLN4&ic!B7vM88V3ljyf-gdBz=6#A<~e?jyk6l~t7xs*I}NR`BxV%!EsGa36-puD~ST+!B4OD%sV)@f$$JN8@9=LzUCcS;KeltCnNv@3L zq_FN0dVWj&onb5z2tMy?TCv#oP4dXr`82^pG>$m8HwJ=V^fd;mUi7yFLSu^>16y7w zH3BuyFE#@8qf7P$8q$IKNT4PX*wPpXksQf42Fmn)$8k7KcAWbHo4ix*MBq*Y?nL1K z83E*3$g60J)&;a&_$`tI$+1O!SCSbVx4%h$NMf9v|pdi^CwrGmdz2l z*03aL$g#$yeHjZ=$=O6L7g{BBjZhHedS@jM!yc@^86<@7iwsBS-K;ya$hH8yUU>LD zVK>vc)h_7&gTh1ZUwM0c6i*G&XF!j)O6<{RQS*rRwD3M@e@}RfL(Kor2+o~egNJ1z zdNCnhf!pxN$J?5kJ{sE6)tyaR+0gFrj&M!&_T5>{);?QXAFkQC)rN0lkDL9Jo#0&W z6!%lkg7dH&_bUq%?r8ASi4yD00h9ewg>~k}7b~nsH@-w+p4@nu!u-1Nr3&lFjV~*# zH#fdq;k|R?<*K2`y!h1$HB=N26z*T#b}9<*u^SJn2`qd^gI}#I+#fh#id&@$VZl2Z z{AyL>D{Az{$z>Tk=dy$Y6(sjSOOX2->Hv0K(m2;pQuTsIHICiT!X@2h(slVsv z5WB|vo=*kTSx-Czf=_$!je=tzwXG<%n<^!0&L6zzts0*nhe5G}eHnH}wEX;do+iAQ z{|k-lC2gltZNkQd4i>QUs%~F3Z@zx4?aZIA^CFM$foAFFbzPaie%>a$q{#gGXaJQQ ze_4lkjVlQcX@X&lS z>IC5{eRnJDj}ZA1<75f%ooxT=>x6S08YB*JQ5Yv0q;*y0S?5WS$9*f#QfCQgd2bwk zB=TR75A7MTe~xhW(<}c=!b2kCB!40NUMC>+R|v19ue5g`^V5VDy~pZFTNx|c+Z*mt zb5~KOHE8zmWmJYPqGBntZy?nj9WY~7DxEQ-*P<%n<7O;7I5P?^U0-nKkYEJnGVYxo5^QDYHMCjPb=^`vH=QC6Z<~6Q?20dB-s# zzB`i@50?t;o*Oje-I`t48O!SaXJfC5T zsS4AY9;9_zNgX9gK}Z?kNgc3{^PUkO-J^VKA#n!KQ0x}32NiQ+aSjY`pD}K6UI3> z^pOvO;ygkky08srIYtcU`p`$-2#R}g_+O9{BTo|LvjcGCm!Kh$^ZGBadWI?-Q|KcP z1)UH<^zR-23DIv9xfz)tP@Jb&|1NsG`Y#g3F_F(q;d_AZ0)0VUMa&m4j;~W6`7bE? zhXUdW`W25p@?=o>3w`jQU-RhW`wF@pffWPj7xrHE=;Qnh>P^SIVji`bSGNhmWsS!;`n6j*H!iN 0 ) { + printf("x is %d\n", x); + x = 222; + printf("x is now %d\n", x); + } + if (my_fork < 0) { + printf("Error!"); + } + return 0; } From fe4dd12de8ca14aa3ddc90b5db8ff935b9a9a9ba Mon Sep 17 00:00:00 2001 From: txiong000 Date: Wed, 20 Feb 2019 15:40:25 -0600 Subject: [PATCH 3/6] ex2 and ex3 finish --- ex1/ex1 | Bin 8344 -> 8344 bytes ex1/ex1.c | 8 ++++---- ex2/ex2 | Bin 0 -> 8472 bytes ex2/ex2.c | 15 ++++++++++++++- ex2/text.txt | 2 ++ ex3/ex3 | Bin 0 -> 8472 bytes ex3/ex3.c | 14 ++++++++++++++ 7 files changed, 34 insertions(+), 5 deletions(-) create mode 100644 ex2/ex2 create mode 100644 ex3/ex3 diff --git a/ex1/ex1 b/ex1/ex1 index e11598f8c655bac9bdcc6ae76d63ccb550a12ba1..3e5db74adecbaaf6b23210170b914e21b64b5c13 100644 GIT binary patch delta 374 zcmbQ?IKy$m1FQiQqZH<_SIxr z_LUaN8JRgL3Yo)9$(nHnKy3}!{84r}69Ch@ZZ`k` delta 318 zcmbQ?IKy$m1x^i41~AZ=cyqtd6Lts(K~G-AcuPdF*?pVgO*c`#dCotDU)#02f4zKX z^9-iH%q;(bVDd~hW2V0hlh3h9G2WQ`l1)b92+))rAd_C${`>#Gx%Ll3rJzTz?XJnP z>?=7kixpH;xELxX|6^CujQRWje+y7y50G91q~`$X5Fot_s1IaH4AA^1K>EyNPY!iP zhslK;`ivJQFXT{{yz%G%e-5Aw49EZ(F+hB4@ 0 ) { - printf("x is %d\n", x); + printf("x parent is %d\n", x); x = 222; - printf("x is now %d\n", x); + printf("x parent is now %d\n", x); } if (my_fork < 0) { printf("Error!"); diff --git a/ex2/ex2 b/ex2/ex2 new file mode 100644 index 0000000000000000000000000000000000000000..78ab1e1eeabd2b1734634bae0717d860ea0ef5da GIT binary patch literal 8472 zcmeHMZE#dq89tjOVS!|`p+HlpvLZNu<^m~%P#T-f7dM^oAx-e3z-5!&Bx^UjxO-O; zrnWet)h(tn4muefJ52ir6=$ly7zZ^N1aTZE=%{tn8FXkTsqL6fDN-z1-}l_}Z0^0; zZJp5>|8REhea`!w_kGXzx#ygHs-=`u3jiO#Gp!WyF z{esozNzO`dw185ra7(!c`V{XaWV`wji*V!pN)Lzu7}( z34<~M98~2vrVw^4vfUYFcShL(r&Ym#s2|sjpHAh^jV+YM0m!->_Pk<7IQ}c;$c+z4 zEg^ug`vlpkE>jxs4FQ$BSLIi%UHVn|fvUPsCMo3(UO ztCjU;|E#-XSC`C*`x{NmWnMxLbDVy?_x7UCoIgMLPZ1xa#~l_CQON(QBK#ML57Off>xf_*cUVS5A^(E9r%YoY97~8D z9qmocMy*z>Z4pL$=T0LMO-1`+X)~JY+}RvYCZe6;?l@ca4I~rF(y&wuD#|L9P_J{p z+uxkvkv}0Y4l~PR3s~zBX~pw2C}WsUhvr)er(Jwd@xFjlAM(qU7SD6TW4Vy;Yc?Kp zh!ZAlynUUSw(%$v>)*2RRDpbWN%34fjC)QzXXAPNBaGR2`#k=IjaOBbCKEPZEqRjH zhhO*UCrT?828I6gm|2pW(1$Pj#*vN4ZTaqkpvbK`OYh2+jTB?KpVOzVgN#xfUu>Ln>Z%Q83N)M+WReeX$X5rsd$mH&_^0xC9T}jePnZ^a%GF8hDhkrM@m0OsBgQaXJ0YzqbjXuk*ZX2Aa|`- zt6X_p`adwvwV0L3XNSf7 z9c!2(HIdn%4>w%qSQnS4TtCt9OOhrlsLGQ%y)KnrAlbvkImQKhYn)tCeOUd#R4-|8 zjCv<o&L6YAOoX;5gw~!c&BugwInQFA{cAk6b6b zNcb^oS^gez@EqMMJc9wxit_oslb-nj=6MfNPxc>W1r-YGQ@)hW`lIjWa)(&gA87Me zKT^5qi0_zqc=`7A53F9rG~2h(GeLSjCRAYC{q+2X^7}q>A%EbRlIDuCk~35y%jOB9 z`>7sLPH*xDzFN}cuYS(k>JN_0Yx1xCN~!MO_)MAZuOFVj)8Cl#*N6NYL;kf*{vhd* zev{uP*IjOhljO&~KC#QY;cg4uZGr!93t+#4{S7bv9DwDPC??bPPJUn~w9allKY}1HqQyr4uE_ zp^Ya0r2^y6$(IR?Qzt)Pp#Pk_PoUqO`~rdT<>VI%j6)~CC_f*ae7Ts$1hOS~MTOW? zpufDrpTB>xsZ)I`^Yh!u2gGR%Y+Hg?RORmxY&7{g?a&B<4bKtUd>*sM0s$9dw-+$>|ocs(qkc01{6Pru?P zT>OU=kM-5^BE(jTcxcr^c`*OmBtN$u29zJH*YGnW_2;(dDDj2LU#wowOFxT6ITl!C zP{hw!nSRfl{`#@>Gq=AkDSdn=q)4wn%E;XD^E&aK0{vS;6ax^Ge1OIe`UM(0is+Y1e(rpEtcdOI2@0f(TKLSZd+YpCBF2E z8R1kaJY>*$F*PK5Q{jQA5y=b;43UXVGDy>Os742CsYHg+wl}o1)o9(-V$hYBQ!OHl zmQU{r?QCy$rpUWBqUeg#Xw{Vmy=AX3c697+3UwH}+u9y&?KC<=O&zW5Ro=+;q%*R> z?|BEumwb(ljvKpZBy5J&ou4boebwhqW=rcnj|$c^~P_%esqna)v?Ii)dNCcPx0B=)Askdf?kmCnL1<(1024 zCNxtP_9GTc(2eF{p(T=LR0}n=*O=ixCG{mTT6czS7;0h>p|R8-PWKBfGL#^H7Mdw5 z<@3>0I+jd01cTC2(Ri2*RP1ov6q;-wjiOp#l0?4E5E_q4QcB8x)1v)q9QH@Z2_(zZ z8jzL+;*>*pAl5@=;%?Wd>4ip?HgzVtihpDNNr~D_|c7#Cbs_OI^enKTHoV zMX<+y4;Z90d%!vgZWBf9_ShE!S3^;u+rEYPo3uwq{@6bPQGRU8+}o#JWY1?9*q>7o zppP4e0x!=Tg+0z2{67Sr4PZZ}4hle=lSoAdcX1w6Ze&>zXUx)Lx5xe)c!-s30slh)Pf?oP9{Y44$_p2ef!}u7<2w$lMZ+ow z$QS-zblKxv4|H$e-Q)i|${yKZKLW&l0{OY^f8eq&_CI7X`=7e(ao)(IYrv!3;O`1W zc<-*JP5xYh|0&)2kb%D=+e(`~?m14YixTLOiVTo}eUvDQV4tqOd?AcWtRsOnaIR4J?SVVcSe)9N6+3ogURtw)QmviI`-Krw?zgHQ| JKvALF{@+Vpq|yKY literal 0 HcmV?d00001 diff --git a/ex2/ex2.c b/ex2/ex2.c index 23182d10e..795d1f588 100644 --- a/ex2/ex2.c +++ b/ex2/ex2.c @@ -8,8 +8,21 @@ int main(void) { - // Your code here + // Your code here + int x = 100; + FILE * fp; fp = fopen("text.txt", "w"); + int my_fork = fork(); + if (my_fork == 0) { + fprintf(fp, "%s", "Child\n"); + printf("Child\n"); + fclose(fp); + } + else if (my_fork > 0) { + fprintf(fp, "%s", "Parent\n"); + printf("Parent\n"); + fclose(fp); + } return 0; } diff --git a/ex2/text.txt b/ex2/text.txt index e69de29bb..0880aea58 100644 --- a/ex2/text.txt +++ b/ex2/text.txt @@ -0,0 +1,2 @@ +Parent +Child diff --git a/ex3/ex3 b/ex3/ex3 new file mode 100644 index 0000000000000000000000000000000000000000..b934ac935b0768c45113adc40c2444a4ccae4352 GIT binary patch literal 8472 zcmeHMeQZXb=nO`yO$( zV6}M?v*lr%kkl?WlxtAG!hJ;9uEA>qZhE)U14V>PE0nAhIl0hAL4^oOfbBTe(JILj z4ao{Ul(GYzQh|Y@f800zbSZys+CnlepsdSf_f;##^#jV0n|?uR z2>}YbuaKRZGNtj!B&fuDRD0#drC-Gls=6ySB;wumTQ($OwTXB#o2$(=)YsN;(K0D* zlk7M9XWjOl`(#Tz-xyksc^Q2eWBK9dhE82;eg1{;u`c7S##3GMw*2f>w#A34|8dz% znxPWf%L!Xr0$*JQ-&zJw5gwwCyDTQ4l>a9Q54n|z=kY0}e?Q^(mC#>VMqki8^zg9P z3o{qD#N$!=8q8W5(VI#?CI-{-q}3}7qbC z&Bi8eleSeD9bG$&n3*>F;u*_KckO6Sq>^S=v^&9;eFLeavNUYfl8W2~ul%#;9d!@Q zD$gs{Uv_1jcC1&lvjG+CN9?2B3vB$P+IPT%3ik&?QUN&lx2tWO_XM|xa@m1n@33sb zfjiHaDF?2al&)?#aCPKJ{AGo+F4j8>PCIa3_b6iy+_`_>aNy`0+gxzqi{ON)KJu<# zKUT4PQAp@djalBp1%2eKe_Rx{{&HbR6xO~*-_@(bRAauMEhjG*sH}a3c^;z43zGjS z^Bnr*nB;%VJcm5_vgCijJP+OENy)Q)?+M~%+4x>Z{^B7$|BgO#Woma<=kbc)kZ=8X z)m}*&|3+Gc<-KI{VfE@3mNe#x*{2_`_%=~}`wcyR)w+wi@*uO+m8ye<%e`9l>Z8*C z!Ex@zEKl|wtayBDlXSCwn(Xy6(>^^vrJtF2SofUMFHT!E>FL7-j$5W{vYy2Z|6IImZ37x*qRa_+A!{H2bU>}T=OX?4+ADrwZ4X)9w1Sif< z7Yg~-nfYtL24p{!-PHF5RLgo_fy; 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+ if(my_fork == 0) { + printf("hello\n"); + + } + else if(my_fork > 0 ) { + wait(NULL); + printf("goodbye\n"); + + } else { + printf("Error!"); + exit(1); + } + return 0; } From 30765d1bfa64a3f29986339e5f630e1e4f89709d Mon Sep 17 00:00:00 2001 From: txiong000 Date: Thu, 21 Feb 2019 14:41:02 -0600 Subject: [PATCH 4/6] ex4 complete --- ex4/ex4 | Bin 0 -> 8480 bytes ex4/ex4.c | 13 ++++++++++++- 2 files changed, 12 insertions(+), 1 deletion(-) create mode 100644 ex4/ex4 diff --git a/ex4/ex4 b/ex4/ex4 new file mode 100644 index 0000000000000000000000000000000000000000..4e275fc8baa660e497b8b438ec88580a888b7622 GIT binary patch literal 8480 zcmeHMZ){W76~DF$d3-oF{B)5&H*EnK7N)3+BT zyX3ghKk6Ph*ezSa_2#L?KCgujVkl2P`MnAC+AF_EeLVNJT77-`orijkpe=u(`X84B zXoiYte-W^%BKZ9!aHRy^QUX5%cnCi3@_hh8ZV>oA@OiKZz6!8n{ajN57qAX}IPDEW z&+2_oi~f{xN@!ZzjP{+<`UX#F{n2wOz^{p|y8)YBAl=2jXc{H@Z5T6RD)$741!+kAb07l6+{E zYEeZwW-qM0m-YivFRV3wgy4O-HXer)=M%>W%WRCpiSUY((jL!oNY?ngjV`wY=UsRc z;r^ggpZVWcS~#8^Y@f@F4Y%Jnc^hs&Z*w-Bnv|~Y*l_ME3N8?ix_mAWpS0n4KDbQT za6a=W`;85!D?^%Gwc&InN?aYg=~vH|-&zq8>T^@3w{TS*yX2piGW;s+c>zR)tuMlN z<>n@+AwP(s*_i^At=~o-r)u`9jvkm z9_-F2cI?Axa0%l<^`6;&(7+n3PHjv*Tefu@sHnNtJ9Sg}U(Oc_xz-zF-@GA4Hs%w^ zU4~JthxwUAPx%pm{(1uCnWlUP%kekek{<^MrV9aZIitSSnnyeJEY!!lXVl!=YVNIk zGkU4cSFrtcP_gVc03>Vb+0HvLb$5mAomrlryIUw+nO>Y*oayja!^hflzYBMVVJ){d zl*^^6LHc+&ceg!vyJI_!(yv~;>&vIWf%@DnGgS9Sp5Kn#KRa@_TXKI37uMcT$EH2% zzCUH&$36OFPxz^DPxwSwn?ASL=7+F#r9axmc#pIiM#>0n&8!s7gYiV{;SgMXq5Trr z*&9#pOr*u(sG%oKy99>o+2nhq5h$MPGUyuapcv5CfSN$NfIb70aS3P(tk}Ci-vs(F z%q;$%VeyYsXH&&;|2fa{AmSLqRD=CPs6eH-z7ShLj{4bu6$&R&HxO(KRDY#% z)z|%_;<1g7?AX0U{%oLq3w$nso*(t7pzTxe`8l*F7cCqJKJRT_z0CUt^vJUL2FRa) zap-6h2?W36jRdM+^0fv+<7JV+winCQK<)F()Ij6d^3Fh$5ointYQuqTkw6IaKtB@j z%X=E?=N)uY58;pKAnO8Z3Z}=;rIov7+IKB5I;x32|Z85CAtjwxyEtQCer7- zVk7Y!FX6p`h26Ha^`LM2b zJP7-T*M&7Ir2f)#(O$xjUIHH}flmOA?Yj5vPXG^bCv5ahz}I-!3%*ZTbP;jz#OIWL zM#NRXao!Hoyvdjxj3(g|gnd};Iu|dK{wVEdepAcsj&<`g1#qt5**iX0q zUBE+9!}+xy7W6?UB)RL-|I&MJH|Q73W3`pQMW11&%}js4(kB*EOqw~Q^fM$=}^_P_0S_tYdae5Y}Hy1wrG&ta;n9I)^hw{xU;?4DUta!fFQ-GwW{Pn zZ8<8m109DV;STLkTifHUU0PQ-($R`uWfrb4osk{>#B7_D&TDGoJe|zW>9MF81vk#r z-=b1IrT-QYY35G;xy9(!%Ikq|XOd5grBm8qG#SGLVEZA^ip7&!CauGiERF`}6!_kB zn%u|~qozUrkS7!qi$$}A&P=7VYck*IgfRK(M1+za88V~2KuyDa{Uy2kapx?44g1$nOa-Zvfw(j5FLv5L7#B>6_{qB zz_A#DtzP83{qy6sy4zYVcETsyLG9LbdX&+i*|7hPLU$F?;iiNWFH|tj++;#%^t_%wtopQ>=*sqEyULxXTvYEqqx^U2U5E|$Kgy* zI;`aXZk~zJ^yYqjqt>h18$f7{n%yC?|Y{1Fy1}>pOQT{ z!|?~xecTXHw>|Dp96#H;|CfC99`?U>+4H-DDW4y9!}G@c6{uhg&+lxGQ~Cc&w?6Ys ze+#yiHhX@@oTr2d>w$_a%rkulP+W3upWi$De=z^=%lnh&UZ{;r=Sd4 zWZ|3bnZ6GayZu5ON)2#3?11f Date: Thu, 21 Feb 2019 15:13:15 -0600 Subject: [PATCH 5/6] ex5 complete --- ex5/ex5 | Bin 0 -> 8696 bytes ex5/ex5.c | 19 +++++++++++++++++-- 2 files changed, 17 insertions(+), 2 deletions(-) create mode 100644 ex5/ex5 diff --git a/ex5/ex5 b/ex5/ex5 new file mode 100644 index 0000000000000000000000000000000000000000..07a9339f2df8e8d503f38435f0a65bd6ec2c3674 GIT binary patch literal 8696 zcmeHMeQZ?65#RIK*aUn&2poN@GMspsFe&QI)8v&2FFQW{QM$sVV!uLyJ zg_r|;vBb>sMw39PneLKlre%b?fudeRkqJ2I3X)^W9wIHFvV3HGo{2IQLXiOKp|7XP zB@0xM8K!5*k1Ir34_VY3C%tjfV>&~QG3EAQ+wj*-_MEf@$}llSSxj9Y8bQo=Js{Z} zy2FG8Q`UPN^w7_LH+e~LAJtc=UsB{hQ);f*91iu=*KH05H-$sdWNK5Yp?*_+oi7pd z)yj6GeU#m`XTPio$D6wreO?4V#IStX&+dKYgCA6%JpI$XJ664SP@kK5e?7`#m-D#E z44FWD`(H*lG=R%ZNr04GSS$u?VII7p0FGgwPafNs5C3ujyt4rQ3g8O-oC(7?pZ#qG z@H2ob@N=d|0a)z>fv<+&0#PX%y^1X5xD_z2y*P~ZLQjPZaU^s^7e|stLTFmT2=pG- zdIt_`eSuI|#PvW>B#fXQkBh!z@sOc|Om8Zn^@XB=aOgO)Xbtt^h878gqGDG^dsDMk z>#NJ=YJFRU*52KzfgQa+lrZ#ocV}}r7S+20Jz=!bABjcDhGvT96~tx~!Jk`xF@BKa zuM6@ROC0x$LLmqvx6lYnE(^^?*%0uUcwOLr8KcY?&40$bC{yO>N9Mf_d=bs-N(a7% zaK(Yw5`LpXk$&ME$98ap?7RiHuIm#P+`6t^vEVRZ*>uf{3=Qv-Jfi%B*`4z7;DQA&2|`mQPP+Ag%j0^4R6m*Cc-&d2I6ZgyiGM zV^gQkN&XwiV-u&(NWKSoY})jg0O?)$bbvUZ$Gc?di7f85?N-%hl49-V` zh3pOO{20VUabnKH$U=rGc;s>Yu zKmv0xdeuR7qV>#NbA7ECrU-^u-Gpx4*!Vf=1~; 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int main(void) { - // Your code here - + char inbuf [MSGSIZE]; // buffer that will hold incoming data being written + int p[2]; // two element array to hold and read write file descriptors + + if (pipe(p) < 0) { + fprintf(stderr, "pipe failed\n"); + exit(1); + } + + write(p[1], msg1, MSGSIZE); + write(p[1], msg2, MSGSIZE); + write(p[1], msg3, MSGSIZE); + + for (int i = 0; i<3; i++){ + //read 16 bytes of data from file descriptor + read(p[0], inbuf, MSGSIZE); + printf("%s\n", inbuf); + } return 0; } From 9020627abca8bb265da136e754abbe6854e7ddff Mon Sep 17 00:00:00 2001 From: txiong000 Date: Thu, 21 Feb 2019 17:26:25 -0600 Subject: [PATCH 6/6] finish ex6 --- ex5/ex5 | Bin 8696 -> 8696 bytes ex6/ex6 | Bin 0 -> 8536 bytes ex6/ex6.c | 12 +++++++++++- 3 files changed, 11 insertions(+), 1 deletion(-) create mode 100644 ex6/ex6 diff --git a/ex5/ex5 b/ex5/ex5 index 07a9339f2df8e8d503f38435f0a65bd6ec2c3674..a4e93e3d1d2e7309ad1c8e8b90001b4ca593991b 100644 GIT binary patch delta 65 zcmV-H0KWhDL-<3mgaQiO1*z{{R0-iw*piO1*z{{R0-iw*3vAqm$QxJ(?0 diff --git a/ex6/ex6 b/ex6/ex6 new file mode 100644 index 0000000000000000000000000000000000000000..7c72b6b20e2d5240e89ae7a381cd80c1c4a4329d GIT binary patch literal 8536 zcmeHMZ){uD6~B&?)-8?WrYVFLR#RH7>4@93p$&u5IEj-Nl$Nd}tlQeYIjb?nT3 zhO}&q5n!{@u&$a|G-*>MB*Z2@Fr;-I(ndU-x&QAw_q=a}+M0`8F2Tty?i9pLE-;aLRZzJ?WkBjhomhnT zjp7DDV#N|O%j->oQZr2}(@Z@IcY~5%U6Bbm=?zMbDYuYli7G2ZCKj70Qz85kAU$g9 zNU3B&{W8OJK(*uBin1QDr1!Mads^u+y`mb%l>0}0qo-ZjbJ8Z1QDRE6ly<#gL@0k` zk!0u4J4{$GWxX#zPfeMU_;}(|#k*B~^NmZdYClueU9lk^>)cYiAs(rY#}b)=>Vdi~ z)mv%<>11G&>^Ipb*_NFhvL>2u9$IR11s=kv{KL_T2V1n~UisPN(w{FYYudc(fr?`! zdkr3*H)O&1Bu3e)8;|hPAa+jr77+g&REQd2;i>c${fH zfI@bj1MYVUgWry4bpiZlU`s`%@cI0*l-HraJay5uY!SMiHo{#8^{(E7dUrS$7yYSN z!sr%hBa+M*qB|CkCX%8no`g(K)G%UwQRs9Hg!S%NA{>t$CYH>Ros^;Xg<}bEe=24~ zMN3<2L!-VaP@B)yY|Upk1#T63Yx@p85=}*WVre6qYTwZqPbQ-6;m$Z2?deMIHcuj`6f3_G@1bSv!p-+cnx!!7z1pIH&Z4l5E5fTzUg z0FT?`LK8o(_B-Rp74C72GxHb9{8EwjBDIIpqy@L`(Zp@A z&pVxsv}QRytK`YHIZ|fHNefQ%#x1z@{GG7iJVqq14Zi8ohDsh?GRrSab-%Bc&CUZz@R})V|cWFZMD~PA2UmBHsIq}rw zOV3JvG4a&YOUETo`rSvt%T)7LYxewpE&CU3@ZyzS?QO#)UxqDhxb&~6LL1)pH%R4{ z|K8&l@0G1;lF)}>I<(=EcR;nrUtw4vg)>mZ_KL(?^* z+Hhz>%bt0GMtmwUlgphAjgx`DuR#;vUWl$_&rUr7{CPruMK1sy00u+ju5W&Qe0xKg zc<{F{GnqH@S(Iu+9h2G+Y*)RgWhb=Qg!s)5ZU-=>xn2ahpk>c%Rj0J)U#mUw>cf9t z*{Eg5wSQjLPJL8Pxl_~IO~q{J+)(J8HUiri+7qb#BsF2`y{oyL%xOcJ>4>(uR(8oK znR*!oFHz^s`3Zh8cyDX=)nG>ubHDbfVmYv%m3+@f>3+@lAJX7nQHY0z6Rcl14_V~#Kx`!szz0{l8kz8p60o@!akUN=^*}JYq9_Mp2ggSI+Do z##2H#Mr41-i%mfstCHvOzM}YNRQZRB=YA;j|1-k(OQ*rd)WDNBOX(>^PbhjuQM2@u zzuA9nX>9zwe_cmsCShd!TLYT|8>=^M%}BQ9!J4|j#@Z?q{sgAUBj0Jw6%z$@q+Tp^7kOSe1+h1 z!j3OTT*PmMWZo^V6}+#lg>HdetnN*AeD>aI$N3bSMQJ}4i+6Ifh?%4Fut<1?j}HbV z;8pl82Y!>n`97z_#a3ioI5jF&J9+;%OMLD)^eH=hUbCG;Qhx4ujsP#z{`va#BWb5x zoZ|zQE11X5GqQZyoca2tv@>_U&M0~QPDmE7Kgi77_46ihSAqF0LI=t*{=3w=;%!_G z+%Ij}Ujg8S;uUA5{M>cY0K8C~WbZt961WfRjqk-=`w}TXcOTt1kDX)l;7`qi{~9>e z>s;rr053ESuLECNbe-Vym)rR^;jqN}T77oJRp5ojVJQZj#(z?M;G}O2V<++Wu%7*n zefP4oGkebP-QXtJA$jMxRV(|K)jpEGJ#23RPVINf-wE80a%b8De6-*_eJ$crmyc1R4kkhNy8=@9oT{v>3Z|-;Es?U z+S#Nda%C5b2)*e`JA*q~8|@`BdIkugPd%h53tH1|p|`Z%-4JZk?{03sC)BRD2OHW# zWL3u8y3!fh;ExTZnW4P;dXC3Y=*V2p??Q!+m-roz#27i3o)PTknQcB$m)KxGbxXq|;V@IA~H}t}~rhre#D@ z*AZRh8KJOa!C0a_uxYPC1k#84jBqEYkuqs7=MXWCrus!7ku;)#U_)!Q5$;i3Pa+fO z%)}59k3~d)xZZHOR|F!560m1dBW0G{7fq#O$%Kv3QIPC>}CMjKu;2^ z5govr)-HsSa=HT1UbR|#BQV08scJ4;Q-kxUA>0@1LYru|0~kROz?SL5Hpp+h|1LxK z4ID8l`Z4!E58pSq7Lv85o59dggJVG^_7|D@70!guN9JpgvFfv5$#e}1D(cj40{#Jf ze6FAUPo}KT_aeSmu-To+&>e{NM^%QYUv-$=KgzN`-&gJhMt2L=XMdLIIh0wGbNu$B zknS+7&wejcu7}&ta!e0GpYBA=vwzIAURCaFzk2&zvs|rKc6YL zm(4KG^oI`pN!1aiDIQp5fa_&@PdfBDF2L03{yY2sW2Mj4uph#-iYro-+s*J#9r}C^ zVR{D(D(bBN1&2Q0SD1Pn3*K4(OVB6ZpYP}F-|~M>r#$mae+S(%i$33fj;lZm%RxjY z=9#_@l%|a9=X(Ed6>vRl zfc2Qaf(&6?Kl^vSPpJPsbgBN0c&v%_*IPm4NtTk8^4c>?%y+%2|9~1e`p%H=%I)WK njn+4}-PAPS$LX*@;_raT&DP8OQe+D0SEwuL3=1mC?PmBt?~Lhd literal 0 HcmV?d00001 diff --git a/ex6/ex6.c b/ex6/ex6.c index 17532d65f..5c6f8790b 100644 --- a/ex6/ex6.c +++ b/ex6/ex6.c @@ -21,6 +21,16 @@ and `clock_gettime()` should work just fine. int main() { // Your code here - + int diff; + struct timespec start, end; + int i; + clock_gettime(CLOCK_MONOTONIC, &start); + for (i = 0; i < number_iter; i++) + { + write(fileno(stdout), NULL, 0); + } + clock_gettime(CLOCK_MONOTONIC, &end); + diff = (BILLION * (end.tv_sec - start.tv_sec) + end.tv_nsec - start.tv_nsec) / number_iter; + printf("elapsed time = %llu nanoseconds\n", (long long unsigned int)diff); return 0; }