Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 1 | /*********************************************************** |
Guido van Rossum | 6610ad9 | 1995-01-04 19:07:38 +0000 | [diff] [blame] | 2 | Copyright 1991-1995 by Stichting Mathematisch Centrum, Amsterdam, |
| 3 | The Netherlands. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 4 | |
| 5 | All Rights Reserved |
| 6 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 7 | Permission to use, copy, modify, and distribute this software and its |
| 8 | documentation for any purpose and without fee is hereby granted, |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 9 | provided that the above copyright notice appear in all copies and that |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 10 | both that copyright notice and this permission notice appear in |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 11 | supporting documentation, and that the names of Stichting Mathematisch |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 12 | Centrum or CWI or Corporation for National Research Initiatives or |
| 13 | CNRI not be used in advertising or publicity pertaining to |
| 14 | distribution of the software without specific, written prior |
| 15 | permission. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 16 | |
Guido van Rossum | d266eb4 | 1996-10-25 14:44:06 +0000 | [diff] [blame] | 17 | While CWI is the initial source for this software, a modified version |
| 18 | is made available by the Corporation for National Research Initiatives |
| 19 | (CNRI) at the Internet address ftp://ftp.python.org. |
| 20 | |
| 21 | STICHTING MATHEMATISCH CENTRUM AND CNRI DISCLAIM ALL WARRANTIES WITH |
| 22 | REGARD TO THIS SOFTWARE, INCLUDING ALL IMPLIED WARRANTIES OF |
| 23 | MERCHANTABILITY AND FITNESS, IN NO EVENT SHALL STICHTING MATHEMATISCH |
| 24 | CENTRUM OR CNRI BE LIABLE FOR ANY SPECIAL, INDIRECT OR CONSEQUENTIAL |
| 25 | DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| 26 | PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| 27 | TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| 28 | PERFORMANCE OF THIS SOFTWARE. |
Guido van Rossum | f70e43a | 1991-02-19 12:39:46 +0000 | [diff] [blame] | 29 | |
| 30 | ******************************************************************/ |
| 31 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 32 | /* File object implementation */ |
| 33 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 34 | #include "Python.h" |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 35 | #include "structmember.h" |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 36 | |
Guido van Rossum | ff7e83d | 1999-08-27 20:39:37 +0000 | [diff] [blame] | 37 | #ifndef DONT_HAVE_SYS_TYPES_H |
Guido van Rossum | 4149843 | 1999-01-07 22:09:51 +0000 | [diff] [blame] | 38 | #include <sys/types.h> |
Guido van Rossum | ff7e83d | 1999-08-27 20:39:37 +0000 | [diff] [blame] | 39 | #endif /* DONT_HAVE_SYS_TYPES_H */ |
Guido van Rossum | 4149843 | 1999-01-07 22:09:51 +0000 | [diff] [blame] | 40 | |
Guido van Rossum | 685a38e | 1996-12-05 21:54:17 +0000 | [diff] [blame] | 41 | #ifdef HAVE_UNISTD_H |
| 42 | #include <unistd.h> |
| 43 | #endif |
| 44 | |
Guido van Rossum | b819914 | 1997-05-06 15:23:24 +0000 | [diff] [blame] | 45 | #ifdef MS_WIN32 |
| 46 | #define ftruncate _chsize |
| 47 | #define fileno _fileno |
| 48 | #define HAVE_FTRUNCATE |
| 49 | #endif |
| 50 | |
Guido van Rossum | f2044e1 | 1998-04-28 16:05:59 +0000 | [diff] [blame] | 51 | #ifdef macintosh |
| 52 | #ifdef USE_GUSI |
| 53 | #define HAVE_FTRUNCATE |
| 54 | #endif |
| 55 | #endif |
| 56 | |
Guido van Rossum | 295d171 | 1995-02-19 15:55:19 +0000 | [diff] [blame] | 57 | #ifdef THINK_C |
| 58 | #define HAVE_FOPENRF |
| 59 | #endif |
Jack Jansen | e08dea19 | 1995-04-23 22:12:47 +0000 | [diff] [blame] | 60 | #ifdef __MWERKS__ |
| 61 | /* Mwerks fopen() doesn't always set errno */ |
| 62 | #define NO_FOPEN_ERRNO |
| 63 | #endif |
Guido van Rossum | 295d171 | 1995-02-19 15:55:19 +0000 | [diff] [blame] | 64 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 65 | #define BUF(v) PyString_AS_STRING((PyStringObject *)v) |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 66 | |
Guido van Rossum | ff7e83d | 1999-08-27 20:39:37 +0000 | [diff] [blame] | 67 | #ifndef DONT_HAVE_ERRNO_H |
Guido van Rossum | f1dc566 | 1993-07-05 10:31:29 +0000 | [diff] [blame] | 68 | #include <errno.h> |
Guido van Rossum | ff7e83d | 1999-08-27 20:39:37 +0000 | [diff] [blame] | 69 | #endif |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 70 | |
| 71 | typedef struct { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 72 | PyObject_HEAD |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 73 | FILE *f_fp; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 74 | PyObject *f_name; |
| 75 | PyObject *f_mode; |
| 76 | int (*f_close) Py_PROTO((FILE *)); |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame] | 77 | int f_softspace; /* Flag used by 'print' command */ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 78 | } PyFileObject; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 79 | |
| 80 | FILE * |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 81 | PyFile_AsFile(f) |
| 82 | PyObject *f; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 83 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 84 | if (f == NULL || !PyFile_Check(f)) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 85 | return NULL; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 86 | else |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 87 | return ((PyFileObject *)f)->f_fp; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 88 | } |
| 89 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 90 | PyObject * |
| 91 | PyFile_Name(f) |
| 92 | PyObject *f; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 93 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 94 | if (f == NULL || !PyFile_Check(f)) |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 95 | return NULL; |
| 96 | else |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 97 | return ((PyFileObject *)f)->f_name; |
Guido van Rossum | db3165e | 1993-10-18 17:06:59 +0000 | [diff] [blame] | 98 | } |
| 99 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 100 | PyObject * |
| 101 | PyFile_FromFile(fp, name, mode, close) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 102 | FILE *fp; |
| 103 | char *name; |
| 104 | char *mode; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 105 | int (*close) Py_FPROTO((FILE *)); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 106 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 107 | PyFileObject *f = PyObject_NEW(PyFileObject, &PyFile_Type); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 108 | if (f == NULL) |
| 109 | return NULL; |
| 110 | f->f_fp = NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 111 | f->f_name = PyString_FromString(name); |
| 112 | f->f_mode = PyString_FromString(mode); |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 113 | f->f_close = close; |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame] | 114 | f->f_softspace = 0; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 115 | if (f->f_name == NULL || f->f_mode == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 116 | Py_DECREF(f); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 117 | return NULL; |
| 118 | } |
| 119 | f->f_fp = fp; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 120 | return (PyObject *) f; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 121 | } |
| 122 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 123 | PyObject * |
| 124 | PyFile_FromString(name, mode) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 125 | char *name, *mode; |
| 126 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 127 | extern int fclose Py_PROTO((FILE *)); |
| 128 | PyFileObject *f; |
| 129 | f = (PyFileObject *) PyFile_FromFile((FILE *)NULL, name, mode, fclose); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 130 | if (f == NULL) |
| 131 | return NULL; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 132 | #ifdef HAVE_FOPENRF |
Guido van Rossum | a08095a | 1991-02-13 23:25:27 +0000 | [diff] [blame] | 133 | if (*mode == '*') { |
| 134 | FILE *fopenRF(); |
| 135 | f->f_fp = fopenRF(name, mode+1); |
| 136 | } |
| 137 | else |
| 138 | #endif |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 139 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 140 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 141 | f->f_fp = fopen(name, mode); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 142 | Py_END_ALLOW_THREADS |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 143 | } |
Guido van Rossum | a08095a | 1991-02-13 23:25:27 +0000 | [diff] [blame] | 144 | if (f->f_fp == NULL) { |
Jack Jansen | e08dea19 | 1995-04-23 22:12:47 +0000 | [diff] [blame] | 145 | #ifdef NO_FOPEN_ERRNO |
Barry Warsaw | 52ddc0e | 1998-07-23 16:07:02 +0000 | [diff] [blame] | 146 | /* Metroworks only, not testable, so unchanged */ |
Jack Jansen | e08dea19 | 1995-04-23 22:12:47 +0000 | [diff] [blame] | 147 | if ( errno == 0 ) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 148 | PyErr_SetString(PyExc_IOError, "Cannot open file"); |
| 149 | Py_DECREF(f); |
Jack Jansen | e08dea19 | 1995-04-23 22:12:47 +0000 | [diff] [blame] | 150 | return NULL; |
| 151 | } |
| 152 | #endif |
Barry Warsaw | 52ddc0e | 1998-07-23 16:07:02 +0000 | [diff] [blame] | 153 | PyErr_SetFromErrnoWithFilename(PyExc_IOError, name); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 154 | Py_DECREF(f); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 155 | return NULL; |
| 156 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 157 | return (PyObject *)f; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 158 | } |
| 159 | |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 160 | void |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 161 | PyFile_SetBufSize(f, bufsize) |
| 162 | PyObject *f; |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 163 | int bufsize; |
| 164 | { |
| 165 | if (bufsize >= 0) { |
| 166 | #ifdef HAVE_SETVBUF |
| 167 | int type; |
| 168 | switch (bufsize) { |
| 169 | case 0: |
| 170 | type = _IONBF; |
| 171 | break; |
| 172 | case 1: |
| 173 | type = _IOLBF; |
| 174 | bufsize = BUFSIZ; |
| 175 | break; |
| 176 | default: |
| 177 | type = _IOFBF; |
| 178 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 179 | setvbuf(((PyFileObject *)f)->f_fp, (char *)NULL, |
| 180 | type, bufsize); |
Guido van Rossum | f8b4de0 | 1998-03-06 15:32:40 +0000 | [diff] [blame] | 181 | #else /* !HAVE_SETVBUF */ |
| 182 | if (bufsize <= 1) |
| 183 | setbuf(((PyFileObject *)f)->f_fp, (char *)NULL); |
| 184 | #endif /* !HAVE_SETVBUF */ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 185 | } |
| 186 | } |
| 187 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 188 | static PyObject * |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 189 | err_closed() |
| 190 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 191 | PyErr_SetString(PyExc_ValueError, "I/O operation on closed file"); |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 192 | return NULL; |
| 193 | } |
| 194 | |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 195 | /* Methods */ |
| 196 | |
| 197 | static void |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 198 | file_dealloc(f) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 199 | PyFileObject *f; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 200 | { |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 201 | if (f->f_fp != NULL && f->f_close != NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 202 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 203 | (*f->f_close)(f->f_fp); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 204 | Py_END_ALLOW_THREADS |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 205 | } |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 206 | if (f->f_name != NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 207 | Py_DECREF(f->f_name); |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 208 | } |
| 209 | if (f->f_mode != NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 210 | Py_DECREF(f->f_mode); |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 211 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 212 | free((char *)f); |
| 213 | } |
| 214 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 215 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 216 | file_repr(f) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 217 | PyFileObject *f; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 218 | { |
| 219 | char buf[300]; |
Guido van Rossum | e35399e | 1993-01-10 18:33:56 +0000 | [diff] [blame] | 220 | sprintf(buf, "<%s file '%.256s', mode '%.10s' at %lx>", |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 221 | f->f_fp == NULL ? "closed" : "open", |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 222 | PyString_AsString(f->f_name), |
| 223 | PyString_AsString(f->f_mode), |
Guido van Rossum | e35399e | 1993-01-10 18:33:56 +0000 | [diff] [blame] | 224 | (long)f); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 225 | return PyString_FromString(buf); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 226 | } |
| 227 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 228 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 229 | file_close(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 230 | PyFileObject *f; |
| 231 | PyObject *args; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 232 | { |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 233 | int sts = 0; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 234 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 235 | return NULL; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 236 | if (f->f_fp != NULL) { |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 237 | if (f->f_close != NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 238 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 239 | errno = 0; |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 240 | sts = (*f->f_close)(f->f_fp); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 241 | Py_END_ALLOW_THREADS |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 242 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 243 | f->f_fp = NULL; |
| 244 | } |
Guido van Rossum | febd551 | 1992-03-04 16:39:24 +0000 | [diff] [blame] | 245 | if (sts == EOF) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 246 | return PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 247 | if (sts != 0) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 248 | return PyInt_FromLong((long)sts); |
| 249 | Py_INCREF(Py_None); |
| 250 | return Py_None; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 251 | } |
| 252 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 253 | static PyObject * |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 254 | file_seek(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 255 | PyFileObject *f; |
| 256 | PyObject *args; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 257 | { |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 258 | int whence; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 259 | int ret; |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 260 | off_t offset; |
| 261 | PyObject *offobj; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 262 | |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 263 | if (f->f_fp == NULL) |
| 264 | return err_closed(); |
| 265 | whence = 0; |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 266 | if (!PyArg_ParseTuple(args, "O|i", &offobj, &whence)) |
| 267 | return NULL; |
| 268 | #if !defined(HAVE_LARGEFILE_SUPPORT) |
| 269 | offset = PyInt_AsLong(offobj); |
| 270 | #else |
| 271 | offset = PyLong_Check(offobj) ? |
| 272 | PyLong_AsLongLong(offobj) : PyInt_AsLong(offobj); |
| 273 | #endif |
| 274 | if (PyErr_Occurred()) |
Guido van Rossum | 8830319 | 1999-01-04 17:22:18 +0000 | [diff] [blame] | 275 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 276 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 277 | errno = 0; |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 278 | #if defined(HAVE_FSEEKO) |
| 279 | ret = fseeko(f->f_fp, offset, whence); |
| 280 | #elif defined(HAVE_FSEEK64) |
| 281 | ret = fseek64(f->f_fp, offset, whence); |
| 282 | #else |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 283 | ret = fseek(f->f_fp, offset, whence); |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 284 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 285 | Py_END_ALLOW_THREADS |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 286 | if (ret != 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 287 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | febd551 | 1992-03-04 16:39:24 +0000 | [diff] [blame] | 288 | clearerr(f->f_fp); |
| 289 | return NULL; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 290 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 291 | Py_INCREF(Py_None); |
| 292 | return Py_None; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 293 | } |
| 294 | |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 295 | #ifdef HAVE_FTRUNCATE |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 296 | static PyObject * |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 297 | file_truncate(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 298 | PyFileObject *f; |
| 299 | PyObject *args; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 300 | { |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 301 | int ret; |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 302 | off_t newsize; |
| 303 | PyObject *newsizeobj; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 304 | |
| 305 | if (f->f_fp == NULL) |
| 306 | return err_closed(); |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 307 | newsizeobj = NULL; |
| 308 | if (!PyArg_ParseTuple(args, "|O", &newsizeobj)) |
Guido van Rossum | 8830319 | 1999-01-04 17:22:18 +0000 | [diff] [blame] | 309 | return NULL; |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 310 | if (newsizeobj != NULL) { |
| 311 | #if !defined(HAVE_LARGEFILE_SUPPORT) |
| 312 | newsize = PyInt_AsLong(newsizeobj); |
| 313 | #else |
| 314 | newsize = PyLong_Check(newsizeobj) ? |
| 315 | PyLong_AsLongLong(newsizeobj) : |
| 316 | PyInt_AsLong(newsizeobj); |
| 317 | #endif |
| 318 | if (PyErr_Occurred()) |
| 319 | return NULL; |
| 320 | } else { |
| 321 | /* Default to current position*/ |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 322 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 323 | errno = 0; |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 324 | #if defined(HAVE_FTELLO) && defined(HAVE_LARGEFILE_SUPPORT) |
| 325 | newsize = ftello(f->f_fp); |
| 326 | #elif defined(HAVE_FTELL64) && defined(HAVE_LARGEFILE_SUPPORT) |
| 327 | newsize = ftell64(f->f_fp); |
| 328 | #else |
| 329 | newsize = ftell(f->f_fp); |
| 330 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 331 | Py_END_ALLOW_THREADS |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 332 | if (newsize == -1) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 333 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 334 | clearerr(f->f_fp); |
| 335 | return NULL; |
| 336 | } |
| 337 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 338 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 339 | errno = 0; |
| 340 | ret = fflush(f->f_fp); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 341 | Py_END_ALLOW_THREADS |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 342 | if (ret == 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 343 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 344 | errno = 0; |
| 345 | ret = ftruncate(fileno(f->f_fp), newsize); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 346 | Py_END_ALLOW_THREADS |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 347 | } |
| 348 | if (ret != 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 349 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 350 | clearerr(f->f_fp); |
| 351 | return NULL; |
| 352 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 353 | Py_INCREF(Py_None); |
| 354 | return Py_None; |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 355 | } |
| 356 | #endif /* HAVE_FTRUNCATE */ |
| 357 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 358 | static PyObject * |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 359 | file_tell(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 360 | PyFileObject *f; |
| 361 | PyObject *args; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 362 | { |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 363 | off_t offset; |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 364 | if (f->f_fp == NULL) |
| 365 | return err_closed(); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 366 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 367 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 368 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 369 | errno = 0; |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 370 | #if defined(HAVE_FTELLO) && defined(HAVE_LARGEFILE_SUPPORT) |
| 371 | offset = ftello(f->f_fp); |
| 372 | #elif defined(HAVE_FTELL64) && defined(HAVE_LARGEFILE_SUPPORT) |
| 373 | offset = ftell64(f->f_fp); |
| 374 | #else |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 375 | offset = ftell(f->f_fp); |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 376 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 377 | Py_END_ALLOW_THREADS |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 378 | if (offset == -1) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 379 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | febd551 | 1992-03-04 16:39:24 +0000 | [diff] [blame] | 380 | clearerr(f->f_fp); |
| 381 | return NULL; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 382 | } |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 383 | #if !defined(HAVE_LARGEFILE_SUPPORT) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 384 | return PyInt_FromLong(offset); |
Guido van Rossum | 3c9fe0c | 1999-01-06 18:51:17 +0000 | [diff] [blame] | 385 | #else |
| 386 | return PyLong_FromLongLong(offset); |
| 387 | #endif |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 388 | } |
| 389 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 390 | static PyObject * |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 391 | file_fileno(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 392 | PyFileObject *f; |
| 393 | PyObject *args; |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 394 | { |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 395 | if (f->f_fp == NULL) |
| 396 | return err_closed(); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 397 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 398 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 399 | return PyInt_FromLong((long) fileno(f->f_fp)); |
Guido van Rossum | ed233a5 | 1992-06-23 09:07:03 +0000 | [diff] [blame] | 400 | } |
| 401 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 402 | static PyObject * |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 403 | file_flush(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 404 | PyFileObject *f; |
| 405 | PyObject *args; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 406 | { |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 407 | int res; |
| 408 | |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 409 | if (f->f_fp == NULL) |
| 410 | return err_closed(); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 411 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 412 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 413 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 414 | errno = 0; |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 415 | res = fflush(f->f_fp); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 416 | Py_END_ALLOW_THREADS |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 417 | if (res != 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 418 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | febd551 | 1992-03-04 16:39:24 +0000 | [diff] [blame] | 419 | clearerr(f->f_fp); |
| 420 | return NULL; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 421 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 422 | Py_INCREF(Py_None); |
| 423 | return Py_None; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 424 | } |
| 425 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 426 | static PyObject * |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 427 | file_isatty(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 428 | PyFileObject *f; |
| 429 | PyObject *args; |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 430 | { |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 431 | long res; |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 432 | if (f->f_fp == NULL) |
| 433 | return err_closed(); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 434 | if (!PyArg_NoArgs(args)) |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 435 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 436 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | ff4949e | 1992-08-05 19:58:53 +0000 | [diff] [blame] | 437 | res = isatty((int)fileno(f->f_fp)); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 438 | Py_END_ALLOW_THREADS |
| 439 | return PyInt_FromLong(res); |
Guido van Rossum | a1ab7fa | 1991-06-04 19:37:39 +0000 | [diff] [blame] | 440 | } |
| 441 | |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 442 | /* We expect that fstat exists on most systems. |
| 443 | It's confirmed on Unix, Mac and Windows. |
| 444 | If you don't have it, add #define DONT_HAVE_FSTAT to your config.h. */ |
| 445 | #ifndef DONT_HAVE_FSTAT |
| 446 | #define HAVE_FSTAT |
| 447 | |
Guido van Rossum | ff7e83d | 1999-08-27 20:39:37 +0000 | [diff] [blame] | 448 | #ifndef DONT_HAVE_SYS_TYPES_H |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 449 | #include <sys/types.h> |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 450 | #endif |
| 451 | |
Guido van Rossum | ff7e83d | 1999-08-27 20:39:37 +0000 | [diff] [blame] | 452 | #ifndef DONT_HAVE_SYS_STAT_H |
| 453 | #include <sys/stat.h> |
| 454 | #endif |
| 455 | |
| 456 | #endif /* DONT_HAVE_FSTAT */ |
| 457 | |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 458 | #if BUFSIZ < 8192 |
| 459 | #define SMALLCHUNK 8192 |
| 460 | #else |
| 461 | #define SMALLCHUNK BUFSIZ |
| 462 | #endif |
| 463 | |
Guido van Rossum | 3c25904 | 1999-01-14 19:00:14 +0000 | [diff] [blame] | 464 | #if SIZEOF_INT < 4 |
| 465 | #define BIGCHUNK (512 * 32) |
| 466 | #else |
| 467 | #define BIGCHUNK (512 * 1024) |
| 468 | #endif |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 469 | |
| 470 | static size_t |
| 471 | new_buffersize(f, currentsize) |
| 472 | PyFileObject *f; |
| 473 | size_t currentsize; |
| 474 | { |
| 475 | #ifdef HAVE_FSTAT |
| 476 | long pos, end; |
| 477 | struct stat st; |
| 478 | if (fstat(fileno(f->f_fp), &st) == 0) { |
| 479 | end = st.st_size; |
Guido van Rossum | cada293 | 1998-12-11 20:44:56 +0000 | [diff] [blame] | 480 | /* The following is not a bug: we really need to call lseek() |
| 481 | *and* ftell(). The reason is that some stdio libraries |
| 482 | mistakenly flush their buffer when ftell() is called and |
| 483 | the lseek() call it makes fails, thereby throwing away |
| 484 | data that cannot be recovered in any way. To avoid this, |
| 485 | we first test lseek(), and only call ftell() if lseek() |
| 486 | works. We can't use the lseek() value either, because we |
| 487 | need to take the amount of buffered data into account. |
| 488 | (Yet another reason why stdio stinks. :-) */ |
Guido van Rossum | 91aaa92 | 1998-05-05 22:21:35 +0000 | [diff] [blame] | 489 | pos = lseek(fileno(f->f_fp), 0L, SEEK_CUR); |
| 490 | if (pos >= 0) |
| 491 | pos = ftell(f->f_fp); |
Guido van Rossum | d30dc0a | 1998-04-27 19:01:08 +0000 | [diff] [blame] | 492 | if (pos < 0) |
| 493 | clearerr(f->f_fp); |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 494 | if (end > pos && pos >= 0) |
Guido van Rossum | cada293 | 1998-12-11 20:44:56 +0000 | [diff] [blame] | 495 | return currentsize + end - pos + 1; |
Guido van Rossum | dcb5e7f | 1998-03-03 22:36:10 +0000 | [diff] [blame] | 496 | /* Add 1 so if the file were to grow we'd notice. */ |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 497 | } |
| 498 | #endif |
| 499 | if (currentsize > SMALLCHUNK) { |
| 500 | /* Keep doubling until we reach BIGCHUNK; |
| 501 | then keep adding BIGCHUNK. */ |
| 502 | if (currentsize <= BIGCHUNK) |
| 503 | return currentsize + currentsize; |
| 504 | else |
| 505 | return currentsize + BIGCHUNK; |
| 506 | } |
| 507 | return currentsize + SMALLCHUNK; |
| 508 | } |
| 509 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 510 | static PyObject * |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 511 | file_read(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 512 | PyFileObject *f; |
| 513 | PyObject *args; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 514 | { |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 515 | long bytesrequested = -1; |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 516 | size_t bytesread, buffersize, chunksize; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 517 | PyObject *v; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 518 | |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 519 | if (f->f_fp == NULL) |
| 520 | return err_closed(); |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 521 | if (!PyArg_ParseTuple(args, "|l", &bytesrequested)) |
| 522 | return NULL; |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 523 | if (bytesrequested < 0) |
Guido van Rossum | ff1ccbf | 1999-04-10 15:48:23 +0000 | [diff] [blame] | 524 | buffersize = new_buffersize(f, (size_t)0); |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 525 | else |
| 526 | buffersize = bytesrequested; |
| 527 | v = PyString_FromStringAndSize((char *)NULL, buffersize); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 528 | if (v == NULL) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 529 | return NULL; |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 530 | bytesread = 0; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 531 | for (;;) { |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 532 | Py_BEGIN_ALLOW_THREADS |
| 533 | errno = 0; |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 534 | chunksize = fread(BUF(v) + bytesread, 1, |
| 535 | buffersize - bytesread, f->f_fp); |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 536 | Py_END_ALLOW_THREADS |
| 537 | if (chunksize == 0) { |
| 538 | if (!ferror(f->f_fp)) |
| 539 | break; |
| 540 | PyErr_SetFromErrno(PyExc_IOError); |
| 541 | clearerr(f->f_fp); |
| 542 | Py_DECREF(v); |
| 543 | return NULL; |
| 544 | } |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 545 | bytesread += chunksize; |
| 546 | if (bytesread < buffersize) |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 547 | break; |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 548 | if (bytesrequested < 0) { |
Guido van Rossum | cada293 | 1998-12-11 20:44:56 +0000 | [diff] [blame] | 549 | buffersize = new_buffersize(f, buffersize); |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 550 | if (_PyString_Resize(&v, buffersize) < 0) |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 551 | return NULL; |
| 552 | } |
| 553 | } |
Guido van Rossum | 5449b6e | 1997-05-09 22:27:31 +0000 | [diff] [blame] | 554 | if (bytesread != buffersize) |
| 555 | _PyString_Resize(&v, bytesread); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 556 | return v; |
| 557 | } |
| 558 | |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 559 | static PyObject * |
| 560 | file_readinto(f, args) |
| 561 | PyFileObject *f; |
| 562 | PyObject *args; |
| 563 | { |
| 564 | char *ptr; |
| 565 | int ntodo, ndone, nnow; |
| 566 | |
| 567 | if (f->f_fp == NULL) |
| 568 | return err_closed(); |
| 569 | if (!PyArg_Parse(args, "w#", &ptr, &ntodo)) |
| 570 | return NULL; |
| 571 | ndone = 0; |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 572 | while (ntodo > 0) { |
| 573 | Py_BEGIN_ALLOW_THREADS |
| 574 | errno = 0; |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 575 | nnow = fread(ptr+ndone, 1, ntodo, f->f_fp); |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 576 | Py_END_ALLOW_THREADS |
| 577 | if (nnow == 0) { |
| 578 | if (!ferror(f->f_fp)) |
| 579 | break; |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 580 | PyErr_SetFromErrno(PyExc_IOError); |
| 581 | clearerr(f->f_fp); |
| 582 | return NULL; |
| 583 | } |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 584 | ndone += nnow; |
| 585 | ntodo -= nnow; |
| 586 | } |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 587 | return PyInt_FromLong(ndone); |
| 588 | } |
| 589 | |
| 590 | |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 591 | /* Internal routine to get a line. |
| 592 | Size argument interpretation: |
| 593 | > 0: max length; |
| 594 | = 0: read arbitrary line; |
| 595 | < 0: strip trailing '\n', raise EOFError if EOF reached immediately |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 596 | */ |
| 597 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 598 | static PyObject * |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 599 | getline(f, n) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 600 | PyFileObject *f; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 601 | int n; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 602 | { |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 603 | register FILE *fp; |
| 604 | register int c; |
| 605 | register char *buf, *end; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 606 | int n1, n2; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 607 | PyObject *v; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 608 | |
Guido van Rossum | c10aa77 | 1992-07-31 12:42:38 +0000 | [diff] [blame] | 609 | fp = f->f_fp; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 610 | n2 = n > 0 ? n : 100; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 611 | v = PyString_FromStringAndSize((char *)NULL, n2); |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 612 | if (v == NULL) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 613 | return NULL; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 614 | buf = BUF(v); |
| 615 | end = buf + n2; |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 616 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 617 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 618 | for (;;) { |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 619 | if ((c = getc(fp)) == EOF) { |
Guido van Rossum | 76ad8ed | 1991-06-03 10:54:55 +0000 | [diff] [blame] | 620 | clearerr(fp); |
Guido van Rossum | f518154 | 1997-11-07 19:20:34 +0000 | [diff] [blame] | 621 | Py_BLOCK_THREADS |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 622 | if (PyErr_CheckSignals()) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 623 | Py_DECREF(v); |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 624 | return NULL; |
| 625 | } |
| 626 | if (n < 0 && buf == BUF(v)) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 627 | Py_DECREF(v); |
| 628 | PyErr_SetString(PyExc_EOFError, |
Guido van Rossum | 201be05 | 1991-12-24 13:26:41 +0000 | [diff] [blame] | 629 | "EOF when reading a line"); |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 630 | return NULL; |
| 631 | } |
Guido van Rossum | f518154 | 1997-11-07 19:20:34 +0000 | [diff] [blame] | 632 | Py_UNBLOCK_THREADS |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 633 | break; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 634 | } |
| 635 | if ((*buf++ = c) == '\n') { |
| 636 | if (n < 0) |
| 637 | buf--; |
| 638 | break; |
| 639 | } |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 640 | if (buf == end) { |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 641 | if (n > 0) |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 642 | break; |
| 643 | n1 = n2; |
| 644 | n2 += 1000; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 645 | Py_BLOCK_THREADS |
| 646 | if (_PyString_Resize(&v, n2) < 0) |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 647 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 648 | Py_UNBLOCK_THREADS |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 649 | buf = BUF(v) + n1; |
| 650 | end = BUF(v) + n2; |
| 651 | } |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 652 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 653 | Py_END_ALLOW_THREADS |
Guido van Rossum | 1984f1e | 1992-08-04 12:41:02 +0000 | [diff] [blame] | 654 | |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 655 | n1 = buf - BUF(v); |
| 656 | if (n1 != n2) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 657 | _PyString_Resize(&v, n1); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 658 | return v; |
| 659 | } |
| 660 | |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 661 | /* External C interface */ |
| 662 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 663 | PyObject * |
| 664 | PyFile_GetLine(f, n) |
| 665 | PyObject *f; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 666 | int n; |
| 667 | { |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 668 | if (f == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 669 | PyErr_BadInternalCall(); |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 670 | return NULL; |
| 671 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 672 | if (!PyFile_Check(f)) { |
| 673 | PyObject *reader; |
| 674 | PyObject *args; |
| 675 | PyObject *result; |
| 676 | reader = PyObject_GetAttrString(f, "readline"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 677 | if (reader == NULL) |
| 678 | return NULL; |
| 679 | if (n <= 0) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 680 | args = Py_BuildValue("()"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 681 | else |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 682 | args = Py_BuildValue("(i)", n); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 683 | if (args == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 684 | Py_DECREF(reader); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 685 | return NULL; |
| 686 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 687 | result = PyEval_CallObject(reader, args); |
| 688 | Py_DECREF(reader); |
| 689 | Py_DECREF(args); |
| 690 | if (result != NULL && !PyString_Check(result)) { |
| 691 | Py_DECREF(result); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 692 | result = NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 693 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 694 | "object.readline() returned non-string"); |
| 695 | } |
| 696 | if (n < 0 && result != NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 697 | char *s = PyString_AsString(result); |
| 698 | int len = PyString_Size(result); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 699 | if (len == 0) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 700 | Py_DECREF(result); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 701 | result = NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 702 | PyErr_SetString(PyExc_EOFError, |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 703 | "EOF when reading a line"); |
| 704 | } |
| 705 | else if (s[len-1] == '\n') { |
| 706 | if (result->ob_refcnt == 1) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 707 | _PyString_Resize(&result, len-1); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 708 | else { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 709 | PyObject *v; |
| 710 | v = PyString_FromStringAndSize(s, |
| 711 | len-1); |
| 712 | Py_DECREF(result); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 713 | result = v; |
| 714 | } |
| 715 | } |
| 716 | } |
| 717 | return result; |
| 718 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 719 | if (((PyFileObject*)f)->f_fp == NULL) |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 720 | return err_closed(); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 721 | return getline((PyFileObject *)f, n); |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 722 | } |
| 723 | |
| 724 | /* Python method */ |
| 725 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 726 | static PyObject * |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 727 | file_readline(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 728 | PyFileObject *f; |
| 729 | PyObject *args; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 730 | { |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 731 | int n = -1; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 732 | |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 733 | if (f->f_fp == NULL) |
| 734 | return err_closed(); |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 735 | if (!PyArg_ParseTuple(args, "|i", &n)) |
| 736 | return NULL; |
| 737 | if (n == 0) |
| 738 | return PyString_FromString(""); |
| 739 | if (n < 0) |
| 740 | n = 0; |
Guido van Rossum | 51415a7 | 1992-03-27 17:23:38 +0000 | [diff] [blame] | 741 | return getline(f, n); |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 742 | } |
| 743 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 744 | static PyObject * |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 745 | file_readlines(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 746 | PyFileObject *f; |
| 747 | PyObject *args; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 748 | { |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 749 | long sizehint = 0; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 750 | PyObject *list; |
| 751 | PyObject *line; |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 752 | char small_buffer[SMALLCHUNK]; |
| 753 | char *buffer = small_buffer; |
| 754 | size_t buffersize = SMALLCHUNK; |
| 755 | PyObject *big_buffer = NULL; |
| 756 | size_t nfilled = 0; |
| 757 | size_t nread; |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 758 | size_t totalread = 0; |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 759 | char *p, *q, *end; |
| 760 | int err; |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 761 | |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 762 | if (f->f_fp == NULL) |
| 763 | return err_closed(); |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 764 | if (!PyArg_ParseTuple(args, "|l", &sizehint)) |
Guido van Rossum | 0bd2441 | 1991-04-04 15:21:57 +0000 | [diff] [blame] | 765 | return NULL; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 766 | if ((list = PyList_New(0)) == NULL) |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 767 | return NULL; |
| 768 | for (;;) { |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 769 | Py_BEGIN_ALLOW_THREADS |
| 770 | errno = 0; |
| 771 | nread = fread(buffer+nfilled, 1, buffersize-nfilled, f->f_fp); |
| 772 | Py_END_ALLOW_THREADS |
| 773 | if (nread == 0) { |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 774 | sizehint = 0; |
Guido van Rossum | 3da3fce | 1998-02-19 20:46:48 +0000 | [diff] [blame] | 775 | if (!ferror(f->f_fp)) |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 776 | break; |
| 777 | PyErr_SetFromErrno(PyExc_IOError); |
| 778 | clearerr(f->f_fp); |
| 779 | error: |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 780 | Py_DECREF(list); |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 781 | list = NULL; |
| 782 | goto cleanup; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 783 | } |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 784 | totalread += nread; |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 785 | p = memchr(buffer+nfilled, '\n', nread); |
| 786 | if (p == NULL) { |
| 787 | /* Need a larger buffer to fit this line */ |
| 788 | nfilled += nread; |
| 789 | buffersize *= 2; |
| 790 | if (big_buffer == NULL) { |
| 791 | /* Create the big buffer */ |
| 792 | big_buffer = PyString_FromStringAndSize( |
| 793 | NULL, buffersize); |
| 794 | if (big_buffer == NULL) |
| 795 | goto error; |
| 796 | buffer = PyString_AS_STRING(big_buffer); |
| 797 | memcpy(buffer, small_buffer, nfilled); |
| 798 | } |
| 799 | else { |
| 800 | /* Grow the big buffer */ |
| 801 | _PyString_Resize(&big_buffer, buffersize); |
| 802 | buffer = PyString_AS_STRING(big_buffer); |
| 803 | } |
| 804 | continue; |
| 805 | } |
| 806 | end = buffer+nfilled+nread; |
| 807 | q = buffer; |
| 808 | do { |
| 809 | /* Process complete lines */ |
| 810 | p++; |
| 811 | line = PyString_FromStringAndSize(q, p-q); |
| 812 | if (line == NULL) |
| 813 | goto error; |
| 814 | err = PyList_Append(list, line); |
| 815 | Py_DECREF(line); |
| 816 | if (err != 0) |
| 817 | goto error; |
| 818 | q = p; |
| 819 | p = memchr(q, '\n', end-q); |
| 820 | } while (p != NULL); |
| 821 | /* Move the remaining incomplete line to the start */ |
| 822 | nfilled = end-q; |
| 823 | memmove(buffer, q, nfilled); |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 824 | if (sizehint > 0) |
| 825 | if (totalread >= (size_t)sizehint) |
| 826 | break; |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 827 | } |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 828 | if (nfilled != 0) { |
| 829 | /* Partial last line */ |
| 830 | line = PyString_FromStringAndSize(buffer, nfilled); |
| 831 | if (line == NULL) |
| 832 | goto error; |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 833 | if (sizehint > 0) { |
| 834 | /* Need to complete the last line */ |
| 835 | PyObject *rest = getline(f, 0); |
| 836 | if (rest == NULL) { |
| 837 | Py_DECREF(line); |
| 838 | goto error; |
| 839 | } |
| 840 | PyString_Concat(&line, rest); |
| 841 | Py_DECREF(rest); |
| 842 | if (line == NULL) |
| 843 | goto error; |
| 844 | } |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 845 | err = PyList_Append(list, line); |
| 846 | Py_DECREF(line); |
| 847 | if (err != 0) |
| 848 | goto error; |
| 849 | } |
| 850 | cleanup: |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 851 | if (big_buffer) { |
Guido van Rossum | 6263d54 | 1997-05-10 22:07:25 +0000 | [diff] [blame] | 852 | Py_DECREF(big_buffer); |
Guido van Rossum | 1109fbc | 1998-04-10 22:16:39 +0000 | [diff] [blame] | 853 | } |
Guido van Rossum | ce5ba84 | 1991-03-06 13:06:18 +0000 | [diff] [blame] | 854 | return list; |
| 855 | } |
| 856 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 857 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 858 | file_write(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 859 | PyFileObject *f; |
| 860 | PyObject *args; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 861 | { |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 862 | char *s; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 863 | int n, n2; |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 864 | if (f->f_fp == NULL) |
| 865 | return err_closed(); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 866 | if (!PyArg_Parse(args, "s#", &s, &n)) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 867 | return NULL; |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame] | 868 | f->f_softspace = 0; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 869 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 870 | errno = 0; |
Guido van Rossum | d7297e6 | 1992-07-06 14:19:26 +0000 | [diff] [blame] | 871 | n2 = fwrite(s, 1, n, f->f_fp); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 872 | Py_END_ALLOW_THREADS |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 873 | if (n2 != n) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 874 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | febd551 | 1992-03-04 16:39:24 +0000 | [diff] [blame] | 875 | clearerr(f->f_fp); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 876 | return NULL; |
| 877 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 878 | Py_INCREF(Py_None); |
| 879 | return Py_None; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 880 | } |
| 881 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 882 | static PyObject * |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 883 | file_writelines(f, args) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 884 | PyFileObject *f; |
| 885 | PyObject *args; |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 886 | { |
| 887 | int i, n; |
| 888 | if (f->f_fp == NULL) |
| 889 | return err_closed(); |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 890 | if (args == NULL || !PyList_Check(args)) { |
| 891 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 892 | "writelines() requires list of strings"); |
| 893 | return NULL; |
| 894 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 895 | n = PyList_Size(args); |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 896 | f->f_softspace = 0; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 897 | Py_BEGIN_ALLOW_THREADS |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 898 | errno = 0; |
| 899 | for (i = 0; i < n; i++) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 900 | PyObject *line = PyList_GetItem(args, i); |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 901 | int len; |
| 902 | int nwritten; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 903 | if (!PyString_Check(line)) { |
| 904 | Py_BLOCK_THREADS |
| 905 | PyErr_SetString(PyExc_TypeError, |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 906 | "writelines() requires list of strings"); |
| 907 | return NULL; |
| 908 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 909 | len = PyString_Size(line); |
| 910 | nwritten = fwrite(PyString_AsString(line), 1, len, f->f_fp); |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 911 | if (nwritten != len) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 912 | Py_BLOCK_THREADS |
| 913 | PyErr_SetFromErrno(PyExc_IOError); |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 914 | clearerr(f->f_fp); |
| 915 | return NULL; |
| 916 | } |
| 917 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 918 | Py_END_ALLOW_THREADS |
| 919 | Py_INCREF(Py_None); |
| 920 | return Py_None; |
Guido van Rossum | 5a2a683 | 1993-10-25 09:59:04 +0000 | [diff] [blame] | 921 | } |
| 922 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 923 | static PyMethodDef file_methods[] = { |
Guido van Rossum | 789a161 | 1997-05-10 22:33:55 +0000 | [diff] [blame] | 924 | {"readline", (PyCFunction)file_readline, 1}, |
Guido van Rossum | 74ba247 | 1997-07-13 03:56:50 +0000 | [diff] [blame] | 925 | {"read", (PyCFunction)file_read, 1}, |
| 926 | {"write", (PyCFunction)file_write, 0}, |
| 927 | {"fileno", (PyCFunction)file_fileno, 0}, |
Guido van Rossum | 8830319 | 1999-01-04 17:22:18 +0000 | [diff] [blame] | 928 | {"seek", (PyCFunction)file_seek, 1}, |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 929 | #ifdef HAVE_FTRUNCATE |
Guido van Rossum | 8830319 | 1999-01-04 17:22:18 +0000 | [diff] [blame] | 930 | {"truncate", (PyCFunction)file_truncate, 1}, |
Guido van Rossum | d7047b3 | 1995-01-02 19:07:15 +0000 | [diff] [blame] | 931 | #endif |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 932 | {"tell", (PyCFunction)file_tell, 0}, |
Guido van Rossum | fdf95dd | 1997-05-05 22:15:02 +0000 | [diff] [blame] | 933 | {"readinto", (PyCFunction)file_readinto, 0}, |
Guido van Rossum | 74ba247 | 1997-07-13 03:56:50 +0000 | [diff] [blame] | 934 | {"readlines", (PyCFunction)file_readlines, 1}, |
| 935 | {"writelines", (PyCFunction)file_writelines, 0}, |
| 936 | {"flush", (PyCFunction)file_flush, 0}, |
| 937 | {"close", (PyCFunction)file_close, 0}, |
| 938 | {"isatty", (PyCFunction)file_isatty, 0}, |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 939 | {NULL, NULL} /* sentinel */ |
| 940 | }; |
| 941 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 942 | #define OFF(x) offsetof(PyFileObject, x) |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 943 | |
| 944 | static struct memberlist file_memberlist[] = { |
| 945 | {"softspace", T_INT, OFF(f_softspace)}, |
| 946 | {"mode", T_OBJECT, OFF(f_mode), RO}, |
| 947 | {"name", T_OBJECT, OFF(f_name), RO}, |
| 948 | /* getattr(f, "closed") is implemented without this table */ |
| 949 | {"closed", T_INT, 0, RO}, |
| 950 | {NULL} /* Sentinel */ |
| 951 | }; |
| 952 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 953 | static PyObject * |
Guido van Rossum | 3f5da24 | 1990-12-20 15:06:42 +0000 | [diff] [blame] | 954 | file_getattr(f, name) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 955 | PyFileObject *f; |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 956 | char *name; |
| 957 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 958 | PyObject *res; |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 959 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 960 | res = Py_FindMethod(file_methods, (PyObject *)f, name); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 961 | if (res != NULL) |
| 962 | return res; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 963 | PyErr_Clear(); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 964 | if (strcmp(name, "closed") == 0) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 965 | return PyInt_FromLong((long)(f->f_fp == 0)); |
| 966 | return PyMember_Get((char *)f, file_memberlist, name); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 967 | } |
| 968 | |
| 969 | static int |
| 970 | file_setattr(f, name, v) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 971 | PyFileObject *f; |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 972 | char *name; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 973 | PyObject *v; |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 974 | { |
| 975 | if (v == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 976 | PyErr_SetString(PyExc_AttributeError, |
| 977 | "can't delete file attributes"); |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 978 | return -1; |
| 979 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 980 | return PyMember_Set((char *)f, file_memberlist, name, v); |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 981 | } |
| 982 | |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 983 | PyTypeObject PyFile_Type = { |
| 984 | PyObject_HEAD_INIT(&PyType_Type) |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 985 | 0, |
| 986 | "file", |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 987 | sizeof(PyFileObject), |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 988 | 0, |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 989 | (destructor)file_dealloc, /*tp_dealloc*/ |
Guido van Rossum | 7066dd7 | 1992-09-17 17:54:56 +0000 | [diff] [blame] | 990 | 0, /*tp_print*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 991 | (getattrfunc)file_getattr, /*tp_getattr*/ |
| 992 | (setattrfunc)file_setattr, /*tp_setattr*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 993 | 0, /*tp_compare*/ |
Guido van Rossum | b6775db | 1994-08-01 11:34:53 +0000 | [diff] [blame] | 994 | (reprfunc)file_repr, /*tp_repr*/ |
Guido van Rossum | 85a5fbb | 1990-10-14 12:07:46 +0000 | [diff] [blame] | 995 | }; |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame] | 996 | |
| 997 | /* Interface for the 'soft space' between print items. */ |
| 998 | |
| 999 | int |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1000 | PyFile_SoftSpace(f, newflag) |
| 1001 | PyObject *f; |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame] | 1002 | int newflag; |
| 1003 | { |
| 1004 | int oldflag = 0; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1005 | if (f == NULL) { |
| 1006 | /* Do nothing */ |
| 1007 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1008 | else if (PyFile_Check(f)) { |
| 1009 | oldflag = ((PyFileObject *)f)->f_softspace; |
| 1010 | ((PyFileObject *)f)->f_softspace = newflag; |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame] | 1011 | } |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1012 | else { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1013 | PyObject *v; |
| 1014 | v = PyObject_GetAttrString(f, "softspace"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1015 | if (v == NULL) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1016 | PyErr_Clear(); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1017 | else { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1018 | if (PyInt_Check(v)) |
| 1019 | oldflag = PyInt_AsLong(v); |
| 1020 | Py_DECREF(v); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1021 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1022 | v = PyInt_FromLong((long)newflag); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1023 | if (v == NULL) |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1024 | PyErr_Clear(); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1025 | else { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1026 | if (PyObject_SetAttrString(f, "softspace", v) != 0) |
| 1027 | PyErr_Clear(); |
| 1028 | Py_DECREF(v); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1029 | } |
| 1030 | } |
Guido van Rossum | eb183da | 1991-04-04 10:44:06 +0000 | [diff] [blame] | 1031 | return oldflag; |
| 1032 | } |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1033 | |
| 1034 | /* Interfaces to write objects/strings to file-like objects */ |
| 1035 | |
| 1036 | int |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1037 | PyFile_WriteObject(v, f, flags) |
| 1038 | PyObject *v; |
| 1039 | PyObject *f; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1040 | int flags; |
| 1041 | { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1042 | PyObject *writer, *value, *args, *result; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1043 | if (f == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1044 | PyErr_SetString(PyExc_TypeError, "writeobject with NULL file"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1045 | return -1; |
| 1046 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1047 | else if (PyFile_Check(f)) { |
| 1048 | FILE *fp = PyFile_AsFile(f); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1049 | if (fp == NULL) { |
| 1050 | err_closed(); |
| 1051 | return -1; |
| 1052 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1053 | return PyObject_Print(v, fp, flags); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1054 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1055 | writer = PyObject_GetAttrString(f, "write"); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1056 | if (writer == NULL) |
| 1057 | return -1; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1058 | if (flags & Py_PRINT_RAW) |
| 1059 | value = PyObject_Str(v); |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1060 | else |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1061 | value = PyObject_Repr(v); |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1062 | if (value == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1063 | Py_DECREF(writer); |
Guido van Rossum | c600411 | 1993-11-05 10:22:19 +0000 | [diff] [blame] | 1064 | return -1; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1065 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1066 | args = Py_BuildValue("(O)", value); |
Guido van Rossum | e9eec54 | 1997-05-22 14:02:25 +0000 | [diff] [blame] | 1067 | if (args == NULL) { |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1068 | Py_DECREF(value); |
| 1069 | Py_DECREF(writer); |
Guido van Rossum | d3f9a1a | 1995-07-10 23:32:26 +0000 | [diff] [blame] | 1070 | return -1; |
| 1071 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1072 | result = PyEval_CallObject(writer, args); |
| 1073 | Py_DECREF(args); |
| 1074 | Py_DECREF(value); |
| 1075 | Py_DECREF(writer); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1076 | if (result == NULL) |
| 1077 | return -1; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1078 | Py_DECREF(result); |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1079 | return 0; |
| 1080 | } |
| 1081 | |
Guido van Rossum | 27a60b1 | 1997-05-22 22:25:11 +0000 | [diff] [blame] | 1082 | int |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1083 | PyFile_WriteString(s, f) |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1084 | char *s; |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1085 | PyObject *f; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1086 | { |
| 1087 | if (f == NULL) { |
Guido van Rossum | 27a60b1 | 1997-05-22 22:25:11 +0000 | [diff] [blame] | 1088 | /* Should be caused by a pre-existing error */ |
| 1089 | if(!PyErr_Occurred()) |
| 1090 | PyErr_SetString(PyExc_SystemError, |
| 1091 | "null file for PyFile_WriteString"); |
| 1092 | return -1; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1093 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1094 | else if (PyFile_Check(f)) { |
| 1095 | FILE *fp = PyFile_AsFile(f); |
Guido van Rossum | 27a60b1 | 1997-05-22 22:25:11 +0000 | [diff] [blame] | 1096 | if (fp == NULL) { |
| 1097 | err_closed(); |
| 1098 | return -1; |
| 1099 | } |
| 1100 | fputs(s, fp); |
| 1101 | return 0; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1102 | } |
Guido van Rossum | c0b618a | 1997-05-02 03:12:38 +0000 | [diff] [blame] | 1103 | else if (!PyErr_Occurred()) { |
| 1104 | PyObject *v = PyString_FromString(s); |
Guido van Rossum | 27a60b1 | 1997-05-22 22:25:11 +0000 | [diff] [blame] | 1105 | int err; |
| 1106 | if (v == NULL) |
| 1107 | return -1; |
| 1108 | err = PyFile_WriteObject(v, f, Py_PRINT_RAW); |
| 1109 | Py_DECREF(v); |
| 1110 | return err; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1111 | } |
Guido van Rossum | 74ba247 | 1997-07-13 03:56:50 +0000 | [diff] [blame] | 1112 | else |
| 1113 | return -1; |
Guido van Rossum | 3165fe6 | 1992-09-25 21:59:05 +0000 | [diff] [blame] | 1114 | } |