Mercurial > hg > sv-dependency-builds
annotate src/fftw-3.3.5/api/mkprinter-file.c @ 42:2cd0e3b3e1fd
Current fftw source
| author | Chris Cannam |
|---|---|
| date | Tue, 18 Oct 2016 13:40:26 +0100 |
| parents | |
| children |
| rev | line source |
|---|---|
| Chris@42 | 1 /* |
| Chris@42 | 2 * Copyright (c) 2003, 2007-14 Matteo Frigo |
| Chris@42 | 3 * Copyright (c) 2003, 2007-14 Massachusetts Institute of Technology |
| Chris@42 | 4 * |
| Chris@42 | 5 * This program is free software; you can redistribute it and/or modify |
| Chris@42 | 6 * it under the terms of the GNU General Public License as published by |
| Chris@42 | 7 * the Free Software Foundation; either version 2 of the License, or |
| Chris@42 | 8 * (at your option) any later version. |
| Chris@42 | 9 * |
| Chris@42 | 10 * This program is distributed in the hope that it will be useful, |
| Chris@42 | 11 * but WITHOUT ANY WARRANTY; without even the implied warranty of |
| Chris@42 | 12 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| Chris@42 | 13 * GNU General Public License for more details. |
| Chris@42 | 14 * |
| Chris@42 | 15 * You should have received a copy of the GNU General Public License |
| Chris@42 | 16 * along with this program; if not, write to the Free Software |
| Chris@42 | 17 * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA |
| Chris@42 | 18 * |
| Chris@42 | 19 */ |
| Chris@42 | 20 |
| Chris@42 | 21 #include "api.h" |
| Chris@42 | 22 #include <stdio.h> |
| Chris@42 | 23 |
| Chris@42 | 24 #define BUFSZ 256 |
| Chris@42 | 25 |
| Chris@42 | 26 typedef struct { |
| Chris@42 | 27 printer super; |
| Chris@42 | 28 FILE *f; |
| Chris@42 | 29 char buf[BUFSZ]; |
| Chris@42 | 30 char *bufw; |
| Chris@42 | 31 } P; |
| Chris@42 | 32 |
| Chris@42 | 33 static void myflush(P *p) |
| Chris@42 | 34 { |
| Chris@42 | 35 fwrite(p->buf, 1, p->bufw - p->buf, p->f); |
| Chris@42 | 36 p->bufw = p->buf; |
| Chris@42 | 37 } |
| Chris@42 | 38 |
| Chris@42 | 39 static void myputchr(printer *p_, char c) |
| Chris@42 | 40 { |
| Chris@42 | 41 P *p = (P *) p_; |
| Chris@42 | 42 if (p->bufw >= p->buf + BUFSZ) |
| Chris@42 | 43 myflush(p); |
| Chris@42 | 44 *p->bufw++ = c; |
| Chris@42 | 45 } |
| Chris@42 | 46 |
| Chris@42 | 47 static void mycleanup(printer *p_) |
| Chris@42 | 48 { |
| Chris@42 | 49 P *p = (P *) p_; |
| Chris@42 | 50 myflush(p); |
| Chris@42 | 51 } |
| Chris@42 | 52 |
| Chris@42 | 53 printer *X(mkprinter_file)(FILE *f) |
| Chris@42 | 54 { |
| Chris@42 | 55 P *p = (P *) X(mkprinter)(sizeof(P), myputchr, mycleanup); |
| Chris@42 | 56 p->f = f; |
| Chris@42 | 57 p->bufw = p->buf; |
| Chris@42 | 58 return &p->super; |
| Chris@42 | 59 } |