[ast-developers] Re: foo is not an element of x, if I try to extend a compound in a type
David, as clarification: The poll(1) builtin is acting up for types. I think Roland's design anticipates that it can not create new variables in a compound variable which is embedded in a type. However ksh even acts up if some one wants to *read* a compound variable member which does not exist. For example: ksh -c 'typeset -T y_t=( compound ex=(i=1)) ; y_t v ; print ${v.ex.nono}' ./arch/linux.i386-64/bin/ksh: ex.nono: is not an element of v In poll(1) I get the same warning, despite the use of NV_NOFAIL|NV_NOADD flags in the nv_open() call. I think the nv_open() call should just fail silently, right? Olga On Sat, Aug 18, 2012 at 2:31 AM, ольга крыжановская olga.kryzhanov...@gmail.com wrote: David, why do I get a 'x.sh: line 8: extensions.i: is not an element of x' for the script below? typeset -T y_t=( compound extensions ) y_t x; x.extensions=( integer i=1 ) print $x This is rather a *big* problem since I assumed that compound variables are always extensible, and if I add an array of compound variables I can both add array elements and a variable number of data in these compound variables in the array. Olga -- , __ , { \/`o;-Olga Kryzhanovska -;o`\/ } .'-/`-/ olga.kryzhanov...@gmail.com \-`\-'. `'-..-| / http://twitter.com/fleyta \ |-..-'` /\/\ Solaris/BSD//C/C++ programmer /\/\ `--` `--` -- , __ , { \/`o;-Olga Kryzhanovska -;o`\/ } .'-/`-/ olga.kryzhanov...@gmail.com \-`\-'. `'-..-| / http://twitter.com/fleyta \ |-..-'` /\/\ Solaris/BSD//C/C++ programmer /\/\ `--` `--` ___ ast-developers mailing list ast-developers@research.att.com https://mailman.research.att.com/mailman/listinfo/ast-developers
[ast-developers] Re: foo is not an element of x, if I try to extend a compound in a type
Analysis: gdb --args ./arch/linux.i386-64/bin/ksh -c 'builtin poll ; typeset -T p_t=( integer fd ; compound events revents ) ; function x { p_t -a xx.p=( [0]=( fd=0 events=( pollin=true ) revents=() ) ) ; poll -R -t10 xx.p ; print -v xx ; } ; compound xx ; x' Reading symbols from /home/test001/work/ast_ksh_20120813/build_poll/arch/linux.i386-64/bin/ksh...done. (gdb) break write Breakpoint 1 at 0x40caa8 (gdb) run Starting program: /home/test001/work/ast_ksh_20120813/build_poll/arch/linux.i386-64/bin/ksh -c builtin\ poll\ \;\ typeset\ -T\ p_t=\(\ integer\ fd\ \;\ compound\ events\ revents\ \)\ \;\ function\ x\ \{\ p_t\ -a\ xx.p=\(\ \[0\]=\(\ fd=0\ events=\(\ pollin=true\ \)\ revents=\(\)\ \)\ \)\ \;\ poll\ -R\ -t10\ xx.p\ \;\ print\ -v\ xx\ \;\ \}\ \;\ compound\ xx\ \;\ x Breakpoint 1, 0x774bb1c0 in write () from /lib64/libc.so.6 (gdb) where #0 0x774bb1c0 in write () from /lib64/libc.so.6 #1 0x0050829d in sfwr (f=0x7d9fe0, buf=0x77fa8070, n=131, disc=0x0) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/sfio/sfwr.c:209 #2 0x004f29f6 in _sfflsbuf (f=0x7d9fe0, c=-1) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/sfio/sfflsbuf.c:97 #3 0x004fcdf3 in sfsync (f=0x7d9fe0) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/sfio/sfsync.c:133 #4 0x004bcc09 in errorv (id=0x0, level=3, ap=0x7fff8b08) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/misc/error.c:576 #5 0x004bd083 in errormsg (dictionary=0x55598e libshell, level=3) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/misc/errormsg.c:38 #6 0x004145e5 in create_type (np=0x77fbcc80, name=0x77facac8 events.pollin, flag=1441792, fp=0x77fbd050) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/nvtype.c:541 #7 0x00457de0 in create_tree (np=0x77fbcc80, name=0x77facac8 events.pollin, flag=1441792, dp=0x77fbc210) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/nvtree.c:79 #8 0x004510d5 in nv_create (name=0x77facac0 xx.p[0].events.pollin, root=0x77fe2f80, flags=1441792, dp=0x7fff8db0) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/name.c:1192 #9 0x00451ca8 in nv_open (name=0x7fff8ec0 xx.p[0].events.pollin, root=0x77fbc8c0, flags=1441792) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/name.c:1404 #10 0x0048f966 in nv_open_fmt (dict=0x77fbc8c0, flags=1441792, namefmt=0x56fc6f %s[%s].events.%s) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/bltins/poll.c:235 #11 0x0049037e in b_poll (argc=1, argv=0x77fbb738, context=0x7dc8b8) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/bltins/poll.c:538 #12 0x00474e59 in sh_exec (shp=0x7dc3a0, t=0x77fbb660, flags=4) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:1332 #13 0x00477cef in sh_exec (shp=0x7dc3a0, t=0x77fbb890, flags=7) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:2151 #14 0x0047d8cf in sh_funscope_20120720 (shp=0x7dc3a0, argn=1, argv=0x77fac700, fun=0, arg=0x7fffcfe0, execflg=5) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:3953 #15 0x0047bab8 in sh_funct (shp=0x7dc3a0, np=0x77fbc010, argn=1, argv=0x77fac700, envlist=0x0, execflg=5) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:3282 #16 0x0047599b in sh_exec (shp=0x7dc3a0, t=0x77fac6a0, flags=5) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:1513 #17 0x00477d2a in sh_exec (shp=0x7dc3a0, t=0x77fac6a0, flags=5) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:2155 #18 0x0040e93a in exfile (shp=0x7dc3a0, iop=0x77fb8d60, fno=-1) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/main.c:581 #19 0x0040db2b in sh_main (ac=3, av=0x7fffe108, userinit=0) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/main.c:353 #20 0x0040cd79 in main (argc=3, argv=0x7fffe108) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/pmain.c:45 create_type() fails, but in the wrong way: It uses 'errormsg(SH_DICT,ERROR_exit(1),e_notelem,n,name,nv_name(np));' instead of looking at flags and test for NV_NOFAIL and return NULL. I tried to fix the problem with this patch: diff -u5 src/cmd/ksh93/sh/nvtype.c src/cmd/ksh93/sh/nvtype.c --- src/cmd/ksh93/sh/nvtype.c 2012-08-07 23:13:31.0 +0200 +++ src/cmd/ksh93/sh/nvtype.c 2012-08-18 03:13:19.479515490 +0200 @@ -536,10 +536,12 @@ if(name[n]!='=') for(i=0; i dp-ndisc; i++) { if((memcmp(name,dp-names[i],n)==0) dp-names[i][n]==0) return(nq);
[ast-developers] Re: foo is not an element of x, if I try to extend a compound in a type
Simple test case: /arch/linux.i386-64/bin/ksh -c 'typeset -T y_t=( compound ex=(i=1)) ; y_t v ; [[ -v v.ex.l ]]' ./arch/linux.i386-64/bin/ksh: ex.l: is not an element of v and ./arch/linux.i386-64/bin/ksh +nounset -c 'typeset -T y_t=( compound ex=(i=1)) ; y_t v ; print ${v.ex.l}' ./arch/linux.i386-64/bin/ksh: ex.l: is not an element of v Both should not trigger an error message unless set -o nounset is set. From C api level these messages, whether set -o nounset is enabled or not, should be suppressed with NV_NOADD|NV_NOFAIL, which does not happen in ast-ksh 20120813 either. Please have a look quickly at the problem. I am stuck. Please. Olga On Sat, Aug 18, 2012 at 5:02 AM, ольга крыжановская olga.kryzhanov...@gmail.com wrote: Analysis: gdb --args ./arch/linux.i386-64/bin/ksh -c 'builtin poll ; typeset -T p_t=( integer fd ; compound events revents ) ; function x { p_t -a xx.p=( [0]=( fd=0 events=( pollin=true ) revents=() ) ) ; poll -R -t10 xx.p ; print -v xx ; } ; compound xx ; x' Reading symbols from /home/test001/work/ast_ksh_20120813/build_poll/arch/linux.i386-64/bin/ksh...done. (gdb) break write Breakpoint 1 at 0x40caa8 (gdb) run Starting program: /home/test001/work/ast_ksh_20120813/build_poll/arch/linux.i386-64/bin/ksh -c builtin\ poll\ \;\ typeset\ -T\ p_t=\(\ integer\ fd\ \;\ compound\ events\ revents\ \)\ \;\ function\ x\ \{\ p_t\ -a\ xx.p=\(\ \[0\]=\(\ fd=0\ events=\(\ pollin=true\ \)\ revents=\(\)\ \)\ \)\ \;\ poll\ -R\ -t10\ xx.p\ \;\ print\ -v\ xx\ \;\ \}\ \;\ compound\ xx\ \;\ x Breakpoint 1, 0x774bb1c0 in write () from /lib64/libc.so.6 (gdb) where #0 0x774bb1c0 in write () from /lib64/libc.so.6 #1 0x0050829d in sfwr (f=0x7d9fe0, buf=0x77fa8070, n=131, disc=0x0) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/sfio/sfwr.c:209 #2 0x004f29f6 in _sfflsbuf (f=0x7d9fe0, c=-1) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/sfio/sfflsbuf.c:97 #3 0x004fcdf3 in sfsync (f=0x7d9fe0) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/sfio/sfsync.c:133 #4 0x004bcc09 in errorv (id=0x0, level=3, ap=0x7fff8b08) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/misc/error.c:576 #5 0x004bd083 in errormsg (dictionary=0x55598e libshell, level=3) at /home/test001/work/ast_ksh_20120813/build_poll/src/lib/libast/misc/errormsg.c:38 #6 0x004145e5 in create_type (np=0x77fbcc80, name=0x77facac8 events.pollin, flag=1441792, fp=0x77fbd050) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/nvtype.c:541 #7 0x00457de0 in create_tree (np=0x77fbcc80, name=0x77facac8 events.pollin, flag=1441792, dp=0x77fbc210) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/nvtree.c:79 #8 0x004510d5 in nv_create (name=0x77facac0 xx.p[0].events.pollin, root=0x77fe2f80, flags=1441792, dp=0x7fff8db0) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/name.c:1192 #9 0x00451ca8 in nv_open (name=0x7fff8ec0 xx.p[0].events.pollin, root=0x77fbc8c0, flags=1441792) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/name.c:1404 #10 0x0048f966 in nv_open_fmt (dict=0x77fbc8c0, flags=1441792, namefmt=0x56fc6f %s[%s].events.%s) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/bltins/poll.c:235 #11 0x0049037e in b_poll (argc=1, argv=0x77fbb738, context=0x7dc8b8) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/bltins/poll.c:538 #12 0x00474e59 in sh_exec (shp=0x7dc3a0, t=0x77fbb660, flags=4) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:1332 #13 0x00477cef in sh_exec (shp=0x7dc3a0, t=0x77fbb890, flags=7) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:2151 #14 0x0047d8cf in sh_funscope_20120720 (shp=0x7dc3a0, argn=1, argv=0x77fac700, fun=0, arg=0x7fffcfe0, execflg=5) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:3953 #15 0x0047bab8 in sh_funct (shp=0x7dc3a0, np=0x77fbc010, argn=1, argv=0x77fac700, envlist=0x0, execflg=5) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:3282 #16 0x0047599b in sh_exec (shp=0x7dc3a0, t=0x77fac6a0, flags=5) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:1513 #17 0x00477d2a in sh_exec (shp=0x7dc3a0, t=0x77fac6a0, flags=5) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/xec.c:2155 #18 0x0040e93a in exfile (shp=0x7dc3a0, iop=0x77fb8d60, fno=-1) at /home/test001/work/ast_ksh_20120813/build_poll/src/cmd/ksh93/sh/main.c:581 #19 0x0040db2b in sh_main (ac=3, av=0x7fffe108, userinit=0) at