diff options
author | Raghuram Subramani <raghus2247@gmail.com> | 2022-06-19 19:47:51 +0530 |
---|---|---|
committer | Raghuram Subramani <raghus2247@gmail.com> | 2022-06-19 19:47:51 +0530 |
commit | 4fd287655a72b9aea14cdac715ad5b90ed082ed2 (patch) | |
tree | 65d393bc0e699dd12d05b29ba568e04cea666207 /circuitpython/lib/berkeley-db-1.xx/docs/recno.3.ps | |
parent | 0150f70ce9c39e9e6dd878766c0620c85e47bed0 (diff) |
add circuitpython code
Diffstat (limited to 'circuitpython/lib/berkeley-db-1.xx/docs/recno.3.ps')
-rw-r--r-- | circuitpython/lib/berkeley-db-1.xx/docs/recno.3.ps | 341 |
1 files changed, 341 insertions, 0 deletions
diff --git a/circuitpython/lib/berkeley-db-1.xx/docs/recno.3.ps b/circuitpython/lib/berkeley-db-1.xx/docs/recno.3.ps new file mode 100644 index 0000000..8ffccfc --- /dev/null +++ b/circuitpython/lib/berkeley-db-1.xx/docs/recno.3.ps @@ -0,0 +1,341 @@ +%!PS-Adobe-3.0 +%%Creator: groff version 1.08 +%%DocumentNeededResources: font Times-Roman +%%+ font Times-Bold +%%+ font Times-Italic +%%DocumentSuppliedResources: procset grops 1.08 0 +%%Pages: 2 +%%PageOrder: Ascend +%%Orientation: Portrait +%%EndComments +%%BeginProlog +%%BeginResource: procset grops 1.08 0 +/setpacking where{ +pop +currentpacking +true setpacking +}if +/grops 120 dict dup begin +/SC 32 def +/A/show load def +/B{0 SC 3 -1 roll widthshow}bind def +/C{0 exch ashow}bind def +/D{0 exch 0 SC 5 2 roll awidthshow}bind def +/E{0 rmoveto show}bind def +/F{0 rmoveto 0 SC 3 -1 roll widthshow}bind def +/G{0 rmoveto 0 exch ashow}bind def +/H{0 rmoveto 0 exch 0 SC 5 2 roll awidthshow}bind def +/I{0 exch rmoveto show}bind def +/J{0 exch rmoveto 0 SC 3 -1 roll widthshow}bind def +/K{0 exch rmoveto 0 exch ashow}bind def +/L{0 exch rmoveto 0 exch 0 SC 5 2 roll awidthshow}bind def +/M{rmoveto show}bind def +/N{rmoveto 0 SC 3 -1 roll widthshow}bind def +/O{rmoveto 0 exch ashow}bind def +/P{rmoveto 0 exch 0 SC 5 2 roll awidthshow}bind def +/Q{moveto show}bind def +/R{moveto 0 SC 3 -1 roll widthshow}bind def +/S{moveto 0 exch ashow}bind def +/T{moveto 0 exch 0 SC 5 2 roll awidthshow}bind def +/SF{ +findfont exch +[exch dup 0 exch 0 exch neg 0 0]makefont +dup setfont +[exch/setfont cvx]cvx bind def +}bind def +/MF{ +findfont +[5 2 roll +0 3 1 roll +neg 0 0]makefont +dup setfont +[exch/setfont cvx]cvx bind def +}bind def +/level0 0 def +/RES 0 def +/PL 0 def +/LS 0 def +/PLG{ +gsave newpath clippath pathbbox grestore +exch pop add exch pop +}bind def +/BP{ +/level0 save def +1 setlinecap +1 setlinejoin +72 RES div dup scale +LS{ +90 rotate +}{ +0 PL translate +}ifelse +1 -1 scale +}bind def +/EP{ +level0 restore +showpage +}bind def +/DA{ +newpath arcn stroke +}bind def +/SN{ +transform +.25 sub exch .25 sub exch +round .25 add exch round .25 add exch +itransform +}bind def +/DL{ +SN +moveto +SN +lineto stroke +}bind def +/DC{ +newpath 0 360 arc closepath +}bind def +/TM matrix def +/DE{ +TM currentmatrix pop +translate scale newpath 0 0 .5 0 360 arc closepath +TM setmatrix +}bind def +/RC/rcurveto load def +/RL/rlineto load def +/ST/stroke load def +/MT/moveto load def +/CL/closepath load def +/FL{ +currentgray exch setgray fill setgray +}bind def +/BL/fill load def +/LW/setlinewidth load def +/RE{ +findfont +dup maxlength 1 index/FontName known not{1 add}if dict begin +{ +1 index/FID ne{def}{pop pop}ifelse +}forall +/Encoding exch def +dup/FontName exch def +currentdict end definefont pop +}bind def +/DEFS 0 def +/EBEGIN{ +moveto +DEFS begin +}bind def +/EEND/end load def +/CNT 0 def +/level1 0 def +/PBEGIN{ +/level1 save def +translate +div 3 1 roll div exch scale +neg exch neg exch translate +0 setgray +0 setlinecap +1 setlinewidth +0 setlinejoin +10 setmiterlimit +[]0 setdash +/setstrokeadjust where{ +pop +false setstrokeadjust +}if +/setoverprint where{ +pop +false setoverprint +}if +newpath +/CNT countdictstack def +userdict begin +/showpage{}def +}bind def +/PEND{ +clear +countdictstack CNT sub{end}repeat +level1 restore +}bind def +end def +/setpacking where{ +pop +setpacking +}if +%%EndResource +%%IncludeResource: font Times-Roman +%%IncludeResource: font Times-Bold +%%IncludeResource: font Times-Italic +grops begin/DEFS 1 dict def DEFS begin/u{.001 mul}bind def end/RES 72 def/PL +792 def/LS false def/ENC0[/asciicircum/asciitilde/Scaron/Zcaron/scaron/zcaron +/Ydieresis/trademark/quotesingle/.notdef/.notdef/.notdef/.notdef/.notdef +/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef +/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/.notdef/space +/exclam/quotedbl/numbersign/dollar/percent/ampersand/quoteright/parenleft +/parenright/asterisk/plus/comma/hyphen/period/slash/zero/one/two/three/four +/five/six/seven/eight/nine/colon/semicolon/less/equal/greater/question/at/A/B/C +/D/E/F/G/H/I/J/K/L/M/N/O/P/Q/R/S/T/U/V/W/X/Y/Z/bracketleft/backslash +/bracketright/circumflex/underscore/quoteleft/a/b/c/d/e/f/g/h/i/j/k/l/m/n/o/p/q +/r/s/t/u/v/w/x/y/z/braceleft/bar/braceright/tilde/.notdef/quotesinglbase +/guillemotleft/guillemotright/bullet/florin/fraction/perthousand/dagger +/daggerdbl/endash/emdash/ff/fi/fl/ffi/ffl/dotlessi/dotlessj/grave/hungarumlaut +/dotaccent/breve/caron/ring/ogonek/quotedblleft/quotedblright/oe/lslash +/quotedblbase/OE/Lslash/.notdef/exclamdown/cent/sterling/currency/yen/brokenbar +/section/dieresis/copyright/ordfeminine/guilsinglleft/logicalnot/minus +/registered/macron/degree/plusminus/twosuperior/threesuperior/acute/mu +/paragraph/periodcentered/cedilla/onesuperior/ordmasculine/guilsinglright +/onequarter/onehalf/threequarters/questiondown/Agrave/Aacute/Acircumflex/Atilde +/Adieresis/Aring/AE/Ccedilla/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute +/Icircumflex/Idieresis/Eth/Ntilde/Ograve/Oacute/Ocircumflex/Otilde/Odieresis +/multiply/Oslash/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute/Thorn/germandbls +/agrave/aacute/acircumflex/atilde/adieresis/aring/ae/ccedilla/egrave/eacute +/ecircumflex/edieresis/igrave/iacute/icircumflex/idieresis/eth/ntilde/ograve +/oacute/ocircumflex/otilde/odieresis/divide/oslash/ugrave/uacute/ucircumflex +/udieresis/yacute/thorn/ydieresis]def/Times-Italic@0 ENC0/Times-Italic RE +/Times-Bold@0 ENC0/Times-Bold RE/Times-Roman@0 ENC0/Times-Roman RE +%%EndProlog +%%Page: 1 1 +%%BeginPageSetup +BP +%%EndPageSetup +/F0 10/Times-Roman@0 SF 130.12(RECNO\(3\) BSD)72 48 R(Programmer')2.5 E 2.5(sM) +-.55 G 130.12(anual RECNO\(3\))340.17 48 R/F1 9/Times-Bold@0 SF -.18(NA)72 84 S +(ME).18 E F0(recno \255 record number database access method)108 96 Q F1 +(SYNOPSIS)72 112.8 Q/F2 10/Times-Bold@0 SF(#include <sys/types.h>)108 124.8 Q +(#include <db)108 136.8 Q(.h>)-.4 E F1(DESCRIPTION)72 153.6 Q F0 1.158 +(The routine)108 165.6 R/F3 10/Times-Italic@0 SF(dbopen)3.658 E F0 1.158 +(is the library interf)3.658 F 1.158(ace to database \214les.)-.1 F 1.157 +(One of the supported \214le formats is record)6.158 F 1.159(number \214les.) +108 177.6 R 1.159(The general description of the database access methods is in) +6.159 F F3(dbopen)3.66 E F0 1.16(\(3\), this manual page).24 F +(describes only the recno speci\214c information.)108 189.6 Q 1.944 +(The record number data structure is either v)108 206.4 R 1.944 +(ariable or \214x)-.25 F 1.944 +(ed-length records stored in a \215at-\214le format,)-.15 F 2.04 +(accessed by the logical record number)108 218.4 R 7.04(.T)-.55 G 2.04(he e) +286.31 218.4 R 2.04(xistence of record number \214v)-.15 F 4.54(ei)-.15 G 2.04 +(mplies the e)442.1 218.4 R 2.04(xistence of)-.15 F .876 +(records one through four)108 230.4 R 3.376(,a)-.4 G .875 +(nd the deletion of record number one causes record number \214v)219.684 230.4 +R 3.375(et)-.15 G 3.375(ob)489.93 230.4 S 3.375(er)503.305 230.4 S(enum-)514.45 +230.4 Q .282(bered to record number four)108 242.4 R 2.782(,a)-.4 G 2.782(sw) +231.19 242.4 S .283(ell as the cursor)245.082 242.4 R 2.783(,i)-.4 G 2.783(fp) +316.633 242.4 S .283(ositioned after record number one, to shift do)327.746 +242.4 R .283(wn one)-.25 F(record.)108 254.4 Q .373 +(The recno access method speci\214c data structure pro)108 271.2 R .373 +(vided to)-.15 F F3(dbopen)2.873 E F0 .373(is de\214ned in the <db)2.873 F .373 +(.h> include \214le as)-.4 F(follo)108 283.2 Q(ws:)-.25 E(typedef struct {)108 +300 Q(u_long \215ags;)144 312 Q(u_int cachesize;)144 324 Q(u_int psize;)144 336 +Q(int lorder;)144 348 Q(size_t reclen;)144 360 Q(u_char b)144 372 Q -.25(va) +-.15 G(l;).25 E(char *bfname;)144 384 Q 2.5(}R)108 396 S(ECNOINFO;)121.97 396 Q +(The elements of this structure are de\214ned as follo)108 412.8 Q(ws:)-.25 E +14.61(\215ags The)108 429.6 R(\215ag v)2.5 E(alue is speci\214ed by)-.25 E F3 +(or)2.5 E F0('ing an).73 E 2.5(yo)-.15 G 2.5(ft)313.2 429.6 S(he follo)321.81 +429.6 Q(wing v)-.25 E(alues:)-.25 E(R_FIXEDLEN)144 446.4 Q .962 +(The records are \214x)180 458.4 R .963(ed-length, not byte delimited.)-.15 F +.963(The structure element)5.963 F F3 -.37(re)3.463 G(clen).37 E F0 +(speci\214es)3.463 E .345(the length of the record, and the structure element) +180 470.4 R F3(bval)2.844 E F0 .344(is used as the pad character)2.844 F 5.344 +(.A)-.55 G -.15(ny)530.15 470.4 S .739 +(records, inserted into the database, that are less than)180 482.4 R F3 -.37 +(re)3.239 G(clen).37 E F0 .74(bytes long are automatically)3.239 F(padded.)180 +494.4 Q(R_NOKEY)144 511.2 Q 2.34(In the interf)180 523.2 R 2.34 +(ace speci\214ed by)-.1 F F3(dbopen)4.84 E F0 4.84(,t).24 G 2.34 +(he sequential record retrie)344.98 523.2 R -.25(va)-.25 G 4.84<6c8c>.25 G 2.34 +(lls in both the)478.25 523.2 R(caller')180 535.2 Q 3.556(sk)-.55 G 1.357 -.15 +(ey a)217.336 535.2 T 1.057(nd data structures.).15 F 1.057 +(If the R_NOKEY \215ag is speci\214ed, the)6.057 F F3(cur)3.557 E(sor)-.1 E F0 +(routines)3.557 E .029(are not required to \214ll in the k)180 547.2 R .329 +-.15(ey s)-.1 H 2.529(tructure. This).15 F .028(permits applications to retrie) +2.529 F .328 -.15(ve r)-.25 H .028(ecords at).15 F +(the end of \214les without reading all of the interv)180 559.2 Q +(ening records.)-.15 E(R_SN)144 576 Q(APSHO)-.35 E(T)-.4 E .964 +(This \215ag requires that a snapshot of the \214le be tak)180 588 R .965 +(en when)-.1 F F3(dbopen)3.465 E F0 .965(is called, instead of)3.465 F +(permitting an)180 600 Q 2.5(yu)-.15 G +(nmodi\214ed records to be read from the original \214le.)245.96 600 Q +(cachesize)108 616.8 Q 3.16(As)144 628.8 S .66 +(uggested maximum size, in bytes, of the memory cache.)158.27 628.8 R .659 +(This v)5.659 F .659(alue is)-.25 F F2(only)3.159 E F0(advisory)3.159 E 3.159 +(,a)-.65 G .659(nd the)514.621 628.8 R .046 +(access method will allocate more memory rather than f)144 640.8 R 2.546 +(ail. If)-.1 F F3(cac)2.546 E(hesize)-.15 E F0 2.546(is 0)2.546 F .046 +(\(no size is speci\214ed\) a)2.546 F(def)144 652.8 Q(ault cache is used.)-.1 E +12.95(psize The)108 669.6 R .715 +(recno access method stores the in-memory copies of its records in a btree.) +3.216 F .715(This v)5.715 F .715(alue is the)-.25 F .805 +(size \(in bytes\) of the pages used for nodes in that tree.)144 681.6 R(If) +5.805 E F3(psize)3.305 E F0 .806(is 0 \(no page size is speci\214ed\) a)3.305 F +1.468 +(page size is chosen based on the underlying \214le system I/O block size.)144 +693.6 R(See)6.467 E F3(btr)3.967 E(ee)-.37 E F0 1.467(\(3\) for more).18 F +(4.4 Berk)72 732 Q(ele)-.1 E 2.5(yD)-.15 G(istrib)132.57 732 Q 96.815 +(ution August)-.2 F(18, 1994)2.5 E(1)535 732 Q EP +%%Page: 2 2 +%%BeginPageSetup +BP +%%EndPageSetup +/F0 10/Times-Roman@0 SF 130.12(RECNO\(3\) BSD)72 48 R(Programmer')2.5 E 2.5(sM) +-.55 G 130.12(anual RECNO\(3\))340.17 48 R(information.)144 84 Q 9.62 +(lorder The)108 100.8 R 1.596(byte order for inte)4.096 F 1.596 +(gers in the stored database metadata.)-.15 F 1.597 +(The number should represent the)6.597 F .689(order as an inte)144 112.8 R .689 +(ger; for e)-.15 F .689(xample, big endian order w)-.15 F .689 +(ould be the number 4,321.)-.1 F(If)5.689 E/F1 10/Times-Italic@0 SF(lor)3.189 E +(der)-.37 E F0 .688(is 0 \(no)3.189 F +(order is speci\214ed\) the current host order is used.)144 124.8 Q 9.07 +(reclen The)108 141.6 R(length of a \214x)2.5 E(ed-length record.)-.15 E -.15 +(bv)108 158.4 S 16.68(al The)-.1 F .182 +(delimiting byte to be used to mark the end of a record for v)2.682 F .183 +(ariable-length records, and the pad)-.25 F .809(character for \214x)144 170.4 +R .809(ed-length records.)-.15 F .809(If no v)5.809 F .809 +(alue is speci\214ed, ne)-.25 F .809(wlines \(`)-.25 F(`\\n')-.74 E .808 +('\) are used to mark the)-.74 F(end of v)144 182.4 Q +(ariable-length records and \214x)-.25 E +(ed-length records are padded with spaces.)-.15 E 3.51(bfname The)108 199.2 R +.505 +(recno access method stores the in-memory copies of its records in a btree.) +3.005 F .506(If bfname is non-)5.506 F .065(NULL, it speci\214es the name of t\ +he btree \214le, as if speci\214ed as the \214le name for a dbopen of a btree) +144 211.2 R(\214le.)144 223.2 Q .971(The data part of the k)108 240 R -.15(ey) +-.1 G .972(/data pair used by the recno access method is the same as other acc\ +ess methods.).15 F .199(The k)108 252 R .499 -.15(ey i)-.1 H 2.699(sd).15 G(if) +157.507 252 Q 2.699(ferent. The)-.25 F F1(data)2.699 E F0 .199 +(\214eld of the k)2.699 F .499 -.15(ey s)-.1 H .198 +(hould be a pointer to a memory location of type).15 F F1 -.37(re)2.698 G +(cno_t).37 E F0 2.698(,a).68 G(s)536.11 252 Q .505(de\214ned in the <db)108 264 +R .506(.h> include \214le.)-.4 F .506(This type is normally the lar)5.506 F +.506(gest unsigned inte)-.18 F .506(gral type a)-.15 F -.25(va)-.2 G .506 +(ilable to the).25 F 2.5(implementation. The)108 276 R F1(size)2.5 E F0 +(\214eld of the k)2.5 E .3 -.15(ey s)-.1 H(hould be the size of that type.).15 +E .706(Because there can be no meta-data associated with the underlying recno \ +access method \214les, an)108 292.8 R 3.206(yc)-.15 G(hanges)512.23 292.8 Q +1.262(made to the def)108 304.8 R 1.262(ault v)-.1 F 1.262(alues \(e.g. \214x) +-.25 F 1.263(ed record length or byte separator v)-.15 F 1.263 +(alue\) must be e)-.25 F 1.263(xplicitly speci\214ed)-.15 F +(each time the \214le is opened.)108 316.8 Q .065(In the interf)108 333.6 R +.065(ace speci\214ed by)-.1 F F1(dbopen)2.564 E F0 2.564(,u).24 G .064 +(sing the)261.548 333.6 R F1(put)2.564 E F0(interf)2.564 E .064 +(ace to create a ne)-.1 F 2.564(wr)-.25 G .064 +(ecord will cause the creation of)414.44 333.6 R .755(multiple, empty records \ +if the record number is more than one greater than the lar)108 345.6 R .755 +(gest record currently in)-.18 F(the database.)108 357.6 Q/F2 9/Times-Bold@0 SF +(ERR)72 374.4 Q(ORS)-.27 E F0(The)108 386.4 Q F1 -.37(re)2.922 G(cno).37 E F0 +.421(access method routines may f)2.921 F .421(ail and set)-.1 F F1(errno)2.921 +E F0 .421(for an)2.921 F 2.921(yo)-.15 G 2.921(ft)377.933 386.4 S .421 +(he errors speci\214ed for the library rou-)386.964 386.4 R(tine)108 398.4 Q F1 +(dbopen)2.5 E F0(\(3\) or the follo).24 E(wing:)-.25 E([EINV)108 415.2 Q(AL]) +-1.35 E(An attempt w)144 427.2 Q(as made to add a record to a \214x)-.1 E +(ed-length database that w)-.15 E(as too lar)-.1 E(ge to \214t.)-.18 E F2 +(SEE ALSO)72 444 Q F1(btr)108 456 Q(ee)-.37 E F0(\(3\)).18 E F1(dbopen)2.5 E F0 +(\(3\),).24 E F1(hash)2.5 E F0(\(3\),).28 E F1(mpool)2.5 E F0(\(3\),).51 E F1 +2.754(Document Pr)108 480 R 2.754(ocessing in a Relational Database System)-.45 +F F0 5.255(,M).32 G 2.755(ichael Stonebrak)362.13 480 R(er)-.1 E 5.255(,H)-.4 G +2.755(eidi Stettner)454.06 480 R 5.255(,J)-.4 G(oseph)516.67 480 Q +(Kalash, Antonin Guttman, Nadene L)108 492 Q +(ynn, Memorandum No. UCB/ERL M82/32, May 1982.)-.55 E F2 -.09(BU)72 508.8 S(GS) +.09 E F0(Only big and little endian byte order is supported.)108 520.8 Q +(4.4 Berk)72 732 Q(ele)-.1 E 2.5(yD)-.15 G(istrib)132.57 732 Q 96.815 +(ution August)-.2 F(18, 1994)2.5 E(2)535 732 Q EP +%%Trailer +end +%%EOF |