Mercurial > octave
view liboctave/tempname.c @ 14846:460a3c6d8bf1
maint: Use Octave coding convention for cuddled parenthis in function calls with empty argument lists.
Example: func() => func ()
* dynamic.txi, func.txi, oop.txi, var.txi, embedded.cc, fortdemo.cc,
funcdemo.cc, paramdemo.cc, stringdemo.cc, unwinddemo.cc, Array.cc, Array.h,
CColVector.cc, CDiagMatrix.h, CMatrix.cc, CNDArray.cc, CRowVector.cc,
CSparse.cc, CmplxGEPBAL.cc, EIG.cc, MSparse.cc, MatrixType.cc,
Sparse-op-defs.h, Sparse-perm-op-defs.h, Sparse.cc, Sparse.h,
SparseCmplxCHOL.cc, SparseCmplxCHOL.h, SparseCmplxLU.cc, SparseCmplxQR.cc,
SparseCmplxQR.h, SparseQR.cc, SparseQR.h, SparsedbleCHOL.cc, SparsedbleCHOL.h,
SparsedbleLU.cc, SparsedbleLU.h, base-lu.cc, cmd-hist.cc, dColVector.cc,
dDiagMatrix.h, dMatrix.cc, dNDArray.cc, dRowVector.cc, dSparse.cc, dbleCHOL.cc,
dbleGEPBAL.cc, dim-vector.cc, eigs-base.cc, f2c-main.c, fCColVector.cc,
fCDiagMatrix.h, fCMatrix.cc, fCNDArray.cc, fCRowVector.cc, fCmplxGEPBAL.cc,
fColVector.cc, fDiagMatrix.h, fEIG.cc, fMatrix.cc, fNDArray.cc, fRowVector.cc,
file-ops.cc, file-stat.cc, floatCHOL.cc, floatGEPBAL.cc, idx-vector.h,
lo-specfun.cc, lo-sysdep.cc, mx-inlines.cc, oct-binmap.h, oct-convn.cc,
oct-md5.cc, oct-mem.h, oct-rand.cc, oct-syscalls.cc, randgamma.c, randmtzig.c,
sparse-base-chol.cc, sparse-base-chol.h, sparse-base-lu.cc, sparse-dmsolve.cc,
tempname.c, curl.m, divergence.m, randi.m, dlmwrite.m, edit.m, getappdata.m,
what.m, getarchdir.m, install.m, installed_packages.m, repackage.m,
unload_packages.m, colorbar.m, figure.m, isosurface.m, legend.m, loglog.m,
plot.m, plot3.m, plotyy.m, polar.m, __errplot__.m, __ghostscript__.m,
__marching_cube__.m, __plt__.m, __scatter__.m, semilogx.m, semilogy.m,
trimesh.m, trisurf.m, demo.m, test.m, datetick.m, __delaunayn__.cc,
__dsearchn__.cc, __fltk_uigetfile__.cc, __glpk__.cc, __init_fltk__.cc,
__lin_interpn__.cc, __magick_read__.cc, __pchip_deriv__.cc, balance.cc,
bsxfun.cc, ccolamd.cc, cellfun.cc, chol.cc, daspk.cc, dasrt.cc, dassl.cc,
dmperm.cc, eig.cc, eigs.cc, fftw.cc, filter.cc, find.cc, kron.cc, lookup.cc,
lsode.cc, matrix_type.cc, md5sum.cc, mgorth.cc, qr.cc, quad.cc, rand.cc,
regexp.cc, symbfact.cc, tril.cc, urlwrite.cc, op-bm-bm.cc, op-cdm-cdm.cc,
op-cell.cc, op-chm.cc, op-cm-cm.cc, op-cm-scm.cc, op-cm-sm.cc, op-cs-scm.cc,
op-cs-sm.cc, op-dm-dm.cc, op-dm-scm.cc, op-dm-sm.cc, op-fcdm-fcdm.cc,
op-fcm-fcm.cc, op-fdm-fdm.cc, op-fm-fm.cc, op-int.h, op-m-m.cc, op-m-scm.cc,
op-m-sm.cc, op-pm-pm.cc, op-pm-scm.cc, op-pm-sm.cc, op-range.cc, op-s-scm.cc,
op-s-sm.cc, op-sbm-sbm.cc, op-scm-cm.cc, op-scm-cs.cc, op-scm-m.cc,
op-scm-s.cc, op-scm-scm.cc, op-scm-sm.cc, op-sm-cm.cc, op-sm-cs.cc, op-sm-m.cc,
op-sm-s.cc, op-sm-scm.cc, op-sm-sm.cc, op-str-str.cc, op-struct.cc, bitfcns.cc,
data.cc, debug.cc, dynamic-ld.cc, error.cc, gl-render.cc, graphics.cc,
graphics.in.h, load-path.cc, ls-hdf5.cc, ls-mat5.cc, ls-mat5.h,
ls-oct-ascii.cc, ls-oct-ascii.h, mex.cc, mk-errno-list, oct-map.cc, oct-obj.h,
oct-parse.yy, octave-config.in.cc, ov-base-int.cc, ov-base-mat.cc, ov-base.cc,
ov-bool-mat.cc, ov-bool-sparse.cc, ov-bool.cc, ov-cell.cc, ov-class.cc,
ov-class.h, ov-cx-mat.cc, ov-cx-sparse.cc, ov-fcn-handle.cc, ov-flt-cx-mat.cc,
ov-flt-re-mat.cc, ov-intx.h, ov-range.h, ov-re-mat.cc, ov-re-sparse.cc,
ov-str-mat.cc, ov-struct.cc, ov-usr-fcn.h, ov.h, pr-output.cc, pt-id.cc,
pt-id.h, pt-mat.cc, pt-select.cc, sparse.cc, symtab.cc, symtab.h, syscalls.cc,
toplev.cc, txt-eng-ft.cc, variables.cc, zfstream.cc, zfstream.h, Dork.m,
getStash.m, myStash.m, Gork.m, Pork.m, myStash.m, getStash.m, myStash.m,
getStash.m, myStash.m, fntests.m: Use Octave coding convention for
cuddled parenthis in function calls with empty argument lists.
author | Rik <octave@nomad.inbox5.com> |
---|---|
date | Sun, 08 Jul 2012 11:28:50 -0700 |
parents | 12df7854fa7c |
children | 3d8ace26c5b4 |
line wrap: on
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/* Copyright (C) 1991, 1992, 1993 Free Software Foundation, Inc. This file is part of the GNU C Library. The GNU C Library is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version. The GNU C Library is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details. You should have received a copy of the GNU General Public License along with the GNU C Library; see the file COPYING. If not, write to the Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA. */ #ifdef HAVE_CONFIG_H #include <config.h> #endif #ifndef HAVE_TEMPNAM #include <errno.h> #include <stddef.h> #include <stdio.h> #include <stdlib.h> #include <string.h> #include <sys/types.h> #include <unistd.h> #include <fcntl.h> #include "statdefs.h" #ifndef FILENAME_MAX #ifdef MAXPATHLEN #define FILENAME_MAX MAXPATHLEN #else #define FILENAME_MAX 1024 #endif #endif #ifndef P_tmpdir #define P_tmpdir "/usr/tmp/" #endif /* Return nonzero if DIR is an existent directory. */ static int diraccess (const char *dir) { struct stat buf; return stat (dir, &buf) == 0 && S_ISDIR (buf.st_mode); } /* Return nonzero if FILE exists. */ static int exists (const char *file) { /* We can stat the file even if we can't read its data. */ struct stat st; int save = errno; if (stat (file, &st) == 0) return 1; else { /* We report that the file exists if stat failed for a reason other than nonexistence. In this case, it may or may not exist, and we don't know; but reporting that it does exist will never cause any trouble, while reporting that it doesn't exist when it does would violate the interface of __stdio_gen_tempname. */ int exists = errno != ENOENT; errno = save; return exists; } } /* These are the characters used in temporary filenames. */ static const char letters[] = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"; /* Generate a temporary filename and return it (in a static buffer). If STREAMPTR is not NULL, open a stream "w+b" on the file and set *STREAMPTR to it. If DIR_SEARCH is nonzero, DIR and PFX are used as described for tempnam. If not, a temporary filename in P_tmpdir with no special prefix is generated. If LENPTR is not NULL, *LENPTR is set the to length (including the terminating '\0') of the resultant filename, which is returned. This goes through a cyclic pattern of all possible filenames consisting of five decimal digits of the current pid and three of the characters in `letters'. Data for tempnam and tmpnam is kept separate, but when tempnam is using P_tmpdir and no prefix (i.e, it is identical to tmpnam), the same data is used. Each potential filename is tested for an already-existing file of the same name, and no name of an existing file will be returned. When the cycle reaches its end (12345ZZZ), NULL is returned. */ char * __stdio_gen_tempname (const char *dir, const char *pfx, int dir_search, size_t *lenptr, FILE **streamptr) { int saverrno = errno; static const char tmpdir[] = P_tmpdir; static size_t indices[2]; size_t *idx; static char buf[FILENAME_MAX]; static pid_t oldpid = (pid_t) 0; pid_t pid = getpid (); register size_t len, plen, dlen; if (dir_search) { register const char *d = getenv("TMPDIR"); if (d != NULL && !diraccess(d)) d = NULL; if (d == NULL && dir != NULL && diraccess(dir)) d = dir; if (d == NULL && diraccess(tmpdir)) d = tmpdir; if (d == NULL && diraccess("/tmp")) d = "/tmp"; if (d == NULL) { errno = ENOENT; return NULL; } dir = d; } else dir = tmpdir; dlen = strlen (dir); /* Remove trailing slashes from the directory name. */ while (dlen > 1 && dir[dlen - 1] == '/') --dlen; if (pfx != NULL && *pfx != '\0') { plen = strlen(pfx); if (plen > 5) plen = 5; } else plen = 0; if (dir != tmpdir && !strcmp(dir, tmpdir)) dir = tmpdir; idx = &indices[(plen == 0 && dir == tmpdir) ? 1 : 0]; if (pid != oldpid) { oldpid = pid; indices[0] = indices[1] = 0; } len = dlen + 1 + plen + 5 + 3; for (; *idx < ((sizeof (letters) - 1) * (sizeof (letters) - 1) * (sizeof (letters) - 1)); ++*idx) { /* Construct a file name and see if it already exists. We use a single counter in *IDX to cycle each of three character positions through each of 62 possible letters. */ if (sizeof (buf) < len) return NULL; sprintf (buf, "%.*s/%.*s%.5d%c%c%c", (int) dlen, dir, (int) plen, pfx, pid % 100000, letters[*idx % (sizeof (letters) - 1)], letters[(*idx / (sizeof (letters) - 1)) % (sizeof (letters) - 1)], letters[(*idx / ((sizeof (letters) - 1) * (sizeof (letters) - 1))) % (sizeof (letters) - 1)] ); if (! buf || strlen (buf) != (int) len) return NULL; if (streamptr != NULL) abort (); else if (exists (buf)) continue; /* If the file already existed we have continued the loop above, so we only get here when we have a winning name to return. */ errno = saverrno; if (lenptr != NULL) *lenptr = len + 1; return buf; } /* We got out of the loop because we ran out of combinations to try. */ errno = EEXIST; /* ? */ return NULL; } #endif