From da2e3ebdc1edfbc5028edf1354e7dd2fa69a7968 Mon Sep 17 00:00:00 2001 From: chin Date: Fri, 17 Aug 2007 12:01:52 -0700 Subject: 6437624 RFE: Add ksh93 (as /usr/bin/ksh93) and libshell.so to OS/Net 6505835 AST tools and library (libpp) required for creating l10n messages for ksh93 PSARC/2006/550 Korn Shell 93 Integration PSARC/2006/587 /etc/ksh.kshrc for ksh93 PSARC/2007/035 ksh93 Amendments Contributed by Roland Mainz --HG-- rename : usr/src/lib/libcmd/common/mapfile-vers => deleted_files/usr/src/lib/libcmd/common/mapfile-vers rename : usr/src/lib/libcmd/common/placeholder.c => deleted_files/usr/src/lib/libcmd/common/placeholder.c --- usr/src/lib/libast/common/string/fmtbuf.c | 69 +++++++++++++++++++++++++++++++ 1 file changed, 69 insertions(+) create mode 100644 usr/src/lib/libast/common/string/fmtbuf.c (limited to 'usr/src/lib/libast/common/string/fmtbuf.c') diff --git a/usr/src/lib/libast/common/string/fmtbuf.c b/usr/src/lib/libast/common/string/fmtbuf.c new file mode 100644 index 0000000000..3035fb5612 --- /dev/null +++ b/usr/src/lib/libast/common/string/fmtbuf.c @@ -0,0 +1,69 @@ +/*********************************************************************** +* * +* This software is part of the ast package * +* Copyright (c) 1985-2007 AT&T Knowledge Ventures * +* and is licensed under the * +* Common Public License, Version 1.0 * +* by AT&T Knowledge Ventures * +* * +* A copy of the License is available at * +* http://www.opensource.org/licenses/cpl1.0.txt * +* (with md5 checksum 059e8cd6165cb4c31e351f2b69388fd9) * +* * +* Information and Software Systems Research * +* AT&T Research * +* Florham Park NJ * +* * +* Glenn Fowler * +* David Korn * +* Phong Vo * +* * +***********************************************************************/ +#pragma prototyped + +#include + +/* + * return small format buffer chunk of size n + * spin lock for thread access + * format buffers are short lived + * only one concurrent buffer with size > sizeof(buf) + */ + +static char buf[16 * 1024]; +static char* nxt = buf; +static int lck = -1; + +static char* big; +static size_t bigsiz; + +char* +fmtbuf(size_t n) +{ + register char* cur; + + while (++lck) + lck--; + if (n > (&buf[elementsof(buf)] - nxt)) + { + if (n > elementsof(buf)) + { + if (n > bigsiz) + { + bigsiz = roundof(n, 8 * 1024); + if (!(big = newof(big, char, bigsiz, 0))) + { + lck--; + return 0; + } + } + lck--; + return big; + } + nxt = buf; + } + cur = nxt; + nxt += n; + lck--; + return cur; +} -- cgit v1.2.3