77 #include <jasper/jas_config.h> 80 #if defined(JAS_HAVE_FCNTL_H) 108 #define JAS_STREAM_READ 0x0001 110 #define JAS_STREAM_WRITE 0x0002 112 #define JAS_STREAM_APPEND 0x0004 114 #define JAS_STREAM_BINARY 0x0008 116 #define JAS_STREAM_CREATE 0x0010 123 #define JAS_STREAM_UNBUF 0x0000 125 #define JAS_STREAM_LINEBUF 0x0001 127 #define JAS_STREAM_FULLBUF 0x0002 129 #define JAS_STREAM_BUFMODEMASK 0x000f 133 #define JAS_STREAM_FREEBUF 0x0008 135 #define JAS_STREAM_RDBUF 0x0010 137 #define JAS_STREAM_WRBUF 0x0020 144 #define JAS_STREAM_EOF 0x0001 146 #define JAS_STREAM_ERR 0x0002 148 #define JAS_STREAM_RWLIMIT 0x0004 150 #define JAS_STREAM_ERRMASK \ 151 (JAS_STREAM_EOF | JAS_STREAM_ERR | JAS_STREAM_RWLIMIT) 158 #define JAS_STREAM_BUFSIZE 8192 160 #define JAS_STREAM_PERMS 0666 163 #define JAS_STREAM_MAXPUTBACK 16 173 typedef void jas_stream_obj_t;
182 ssize_t (*read_)(jas_stream_obj_t *obj,
char *buf,
size_t cnt);
185 ssize_t (*write_)(jas_stream_obj_t *obj,
const char *buf,
size_t cnt);
188 long (*seek_)(jas_stream_obj_t *obj,
long offset,
int origin);
191 int (*close_)(jas_stream_obj_t *obj);
222 jas_uchar *bufstart_;
235 jas_uchar tinybuf_[JAS_STREAM_MAXPUTBACK + 1];
238 const jas_stream_ops_t *ops_;
241 jas_stream_obj_t *obj_;
261 char pathname[L_tmpnam + 1];
262 } jas_stream_fileobj_t;
265 #define JAS_STREAM_FILEOBJ_DELONCLOSE 0x01 267 #define JAS_STREAM_FILEOBJ_NOCLOSE 0x02 293 } jas_stream_memobj_t;
449 #define jas_stream_eof(stream) \ 450 (((stream)->flags_ & JAS_STREAM_EOF) != 0) 463 #define jas_stream_error(stream) \ 464 (((stream)->flags_ & JAS_STREAM_ERR) != 0) 475 #define jas_stream_clearerr(stream) \ 476 ((stream)->flags_ &= ~(JAS_STREAM_ERR | JAS_STREAM_EOF)) 488 #define jas_stream_getrwlimit(stream) \ 489 (((const jas_stream_t *)(stream))->rwlimit_) 518 #define jas_stream_getrwcount(stream) \ 519 (((const jas_stream_t *)(stream))->rwcnt_) 554 #define jas_stream_getc(stream) jas_stream_getc_func(stream) 556 #define jas_stream_getc(stream) jas_stream_getc_macro(stream) 575 #define jas_stream_putc(stream, c) jas_stream_putc_func(stream, c) 577 #define jas_stream_putc(stream, c) jas_stream_putc_macro(stream, c) 770 #define jas_stream_peekc(stream) \ 771 (((stream)->cnt_ <= 0) ? jas_stream_fillbuf(stream, 0) : \ 772 ((int)(*(stream)->ptr_))) 1045 JAS_EXPORT
int jas_stream_fillbuf(
jas_stream_t *stream,
int getflag);
1046 JAS_EXPORT
int jas_stream_flushbuf(
jas_stream_t *stream,
int c);
1047 JAS_EXPORT
int jas_stream_getc_func(
jas_stream_t *stream);
1048 JAS_EXPORT
int jas_stream_putc_func(
jas_stream_t *stream,
int c);
1051 static inline int jas_stream_getc2(
jas_stream_t *stream)
1053 if (--stream->cnt_ < 0)
1054 return jas_stream_fillbuf(stream, 1);
1057 return (
int)(*stream->ptr_++);
1060 static inline int jas_stream_getc_macro(
jas_stream_t *stream)
1062 if (stream->flags_ & (JAS_STREAM_ERR | JAS_STREAM_EOF | JAS_STREAM_RWLIMIT))
1065 if (stream->rwlimit_ >= 0 && stream->rwcnt_ >= stream->rwlimit_) {
1066 stream->flags_ |= JAS_STREAM_RWLIMIT;
1070 return jas_stream_getc2(stream);
1074 static inline int jas_stream_putc2(
jas_stream_t *stream, jas_uchar c)
1076 stream->bufmode_ |= JAS_STREAM_WRBUF;
1078 if (--stream->cnt_ < 0)
1079 return jas_stream_flushbuf(stream, c);
1082 return (
int)(*stream->ptr_++ = c);
1086 static inline int jas_stream_putc_macro(
jas_stream_t *stream, jas_uchar c)
1088 if (stream->flags_ & (JAS_STREAM_ERR | JAS_STREAM_EOF | JAS_STREAM_RWLIMIT))
1091 if (stream->rwlimit_ >= 0 && stream->rwcnt_ >= stream->rwlimit_) {
1092 stream->flags_ |= JAS_STREAM_RWLIMIT;
1096 return jas_stream_putc2(stream, c);
JAS_EXPORT char * jas_stream_gets(jas_stream_t *stream, char *buffer, int buffer_size)
Read a line of input from a stream.
Definition: jas_stream.c:794
JAS_EXPORT jas_stream_t * jas_stream_fdopen(int fd, const char *mode)
Open a file descriptor as a stream.
Definition: jas_stream.c:521
JAS_EXPORT unsigned jas_stream_peek(jas_stream_t *stream, void *buffer, size_t count)
Attempt to retrieve one or more pending characters of input from a stream into a buffer without actua...
Definition: jas_stream.c:704
JAS_EXPORT jas_stream_t * jas_stream_freopen(const char *path, const char *mode, FILE *fp)
Open a stdio (i.e., C standard library) stream as a stream.
Definition: jas_stream.c:350
JAS_EXPORT int jas_stream_printf(jas_stream_t *stream, const char *format,...)
Write formatted output to a stream.
Definition: jas_stream.c:768
JAS_EXPORT int jas_stream_display(jas_stream_t *stream, FILE *fp, int count)
Print a hex dump of data read from a stream.
Definition: jas_stream.c:1146
JAS_EXPORT jas_stream_t * jas_stream_memopen(char *buffer, size_t buffer_size)
Open a memory buffer as a stream.
Definition: jas_stream.c:203
I/O stream object.
Definition: jas_stream.h:206
JAS_EXPORT size_t jas_stream_read(jas_stream_t *stream, void *buffer, size_t count)
Read characters from a stream into a buffer.
Definition: jas_stream.c:650
JAS_DEPRECATED JAS_EXPORT jas_stream_t * jas_stream_memopen2(char *buffer, size_t buffer_size)
Do not use.
Definition: jas_stream.c:277
JAS_EXPORT JAS_ATTRIBUTE_PURE int jas_stream_isseekable(jas_stream_t *stream)
Determine if stream supports seeking.
Definition: jas_stream.c:845
JAS_EXPORT long jas_stream_length(jas_stream_t *stream)
Get the size of the file associated with the specified stream.
Definition: jas_stream.c:1196
JAS_EXPORT ssize_t jas_stream_gobble(jas_stream_t *stream, size_t count)
Consume (i.e., discard) characters from stream.
Definition: jas_stream.c:817
JAS_EXPORT ssize_t jas_stream_pad(jas_stream_t *stream, size_t count, int value)
Write a fill character multiple times to a stream.
Definition: jas_stream.c:829
JAS_EXPORT long jas_stream_tell(jas_stream_t *stream)
Get the current position within the stream.
Definition: jas_stream.c:899
JAS_EXPORT jas_stream_t * jas_stream_tmpfile(void)
Open a temporary file as a stream.
Definition: jas_stream.c:471
JAS_EXPORT long jas_stream_seek(jas_stream_t *stream, long offset, int origin)
Set the current position within the stream.
Definition: jas_stream.c:865
JAS_EXPORT int jas_stream_copy(jas_stream_t *destination, jas_stream_t *source, ssize_t count)
Copy data from one stream to another.
Definition: jas_stream.c:1101
JAS_EXPORT int jas_stream_ungetc(jas_stream_t *stream, int c)
Put a character back on a stream.
Definition: jas_stream.c:633
JAS_EXPORT int jas_stream_close(jas_stream_t *stream)
Close a stream.
Definition: jas_stream.c:591
JAS_EXPORT int jas_stream_puts(jas_stream_t *stream, const char *s)
Write a string to a stream.
Definition: jas_stream.c:781
JAS_EXPORT long jas_stream_setrwcount(jas_stream_t *stream, long rw_count)
Set the read/write count for a stream.
Definition: jas_stream.c:1126
JAS_EXPORT long jas_stream_setrwlimit(jas_stream_t *stream, long rwlimit)
Set the read/write limit for a stream.
Definition: jas_stream.c:1136
JAS_EXPORT int jas_stream_rewind(jas_stream_t *stream)
Seek to the beginning of a stream.
Definition: jas_stream.c:859
JAS_EXPORT int jas_stream_flush(jas_stream_t *stream)
Flush any pending output to a stream.
Definition: jas_stream.c:974
JAS_EXPORT size_t jas_stream_write(jas_stream_t *stream, const void *buffer, size_t count)
Write characters from a buffer to a stream.
Definition: jas_stream.c:720
JAS_EXPORT jas_stream_t * jas_stream_fopen(const char *filename, const char *mode)
Open a file as a stream.
Definition: jas_stream.c:283