77#include <jasper/jas_config.h>
81#if defined(JAS_HAVE_FCNTL_H)
105#define JAS_PATH_MAX PATH_MAX
107#define JAS_PATH_MAX 4096
115#define JAS_STREAM_READ 0x0001
117#define JAS_STREAM_WRITE 0x0002
119#define JAS_STREAM_APPEND 0x0004
121#define JAS_STREAM_BINARY 0x0008
123#define JAS_STREAM_CREATE 0x0010
130#define JAS_STREAM_UNBUF 0x0000
132#define JAS_STREAM_LINEBUF 0x0001
134#define JAS_STREAM_FULLBUF 0x0002
136#define JAS_STREAM_BUFMODEMASK 0x000f
140#define JAS_STREAM_FREEBUF 0x0008
142#define JAS_STREAM_RDBUF 0x0010
144#define JAS_STREAM_WRBUF 0x0020
151#define JAS_STREAM_EOF 0x0001
153#define JAS_STREAM_ERR 0x0002
155#define JAS_STREAM_RWLIMIT 0x0004
157#define JAS_STREAM_ERRMASK \
158 (JAS_STREAM_EOF | JAS_STREAM_ERR | JAS_STREAM_RWLIMIT)
165#define JAS_STREAM_BUFSIZE 8192
167#define JAS_STREAM_PERMS 0666
170#define JAS_STREAM_MAXPUTBACK 16
180typedef void jas_stream_obj_t;
189 int (*read_)(jas_stream_obj_t *obj,
char *buf,
unsigned cnt);
192 int (*write_)(jas_stream_obj_t *obj,
const char *buf,
unsigned cnt);
195 long (*seek_)(jas_stream_obj_t *obj,
long offset,
int origin);
198 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[JAS_PATH_MAX + 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;
454#define jas_stream_eof(stream) \
455 (((stream)->flags_ & JAS_STREAM_EOF) != 0)
467#define jas_stream_error(stream) \
468 (((stream)->flags_ & JAS_STREAM_ERR) != 0)
478#define jas_stream_clearerr(stream) \
479 ((stream)->flags_ &= ~(JAS_STREAM_ERR | JAS_STREAM_EOF))
491#define jas_stream_getrwlimit(stream) \
492 (((const jas_stream_t *)(stream))->rwlimit_)
520#define jas_stream_getrwcount(stream) \
521 (((const jas_stream_t *)(stream))->rwcnt_)
547#define jas_stream_getc(stream) jas_stream_getc_func(stream)
549#define jas_stream_getc(stream) jas_stream_getc_macro(stream)
558#define jas_stream_putc(stream, c) jas_stream_putc_func(stream, c)
560#define jas_stream_putc(stream, c) jas_stream_putc_macro(stream, c)
601unsigned jas_stream_read(jas_stream_t *stream,
void *buffer,
unsigned count);
627unsigned jas_stream_peek(jas_stream_t *stream,
void *buffer,
size_t count);
747#define jas_stream_peekc(stream) \
748 (((stream)->cnt_ <= 0) ? jas_stream_fillbuf(stream, 0) : \
749 ((int)(*(stream)->ptr_)))
796JAS_ATTRIBUTE_PURE JAS_DLLEXPORT
833JAS_ATTRIBUTE_PURE JAS_DLLEXPORT
890JAS_DLLEXPORT
int jas_stream_copy(jas_stream_t *destination, jas_stream_t *source,
int count);
965JAS_DLLEXPORT
int jas_stream_pad(jas_stream_t *stream,
int count,
int value);
984JAS_ATTRIBUTE_PURE JAS_DLLEXPORT
997JAS_DLLEXPORT
int jas_stream_fillbuf(jas_stream_t *stream,
int getflag);
998JAS_DLLEXPORT
int jas_stream_flushbuf(jas_stream_t *stream,
int c);
999JAS_DLLEXPORT
int jas_stream_getc_func(jas_stream_t *stream);
1000JAS_DLLEXPORT
int jas_stream_putc_func(jas_stream_t *stream,
int c);
1003static inline int jas_stream_getc2(jas_stream_t *stream)
1005 if (--stream->cnt_ < 0)
1006 return jas_stream_fillbuf(stream, 1);
1009 return (
int)(*stream->ptr_++);
1012static inline int jas_stream_getc_macro(jas_stream_t *stream)
1014 if (stream->flags_ & (JAS_STREAM_ERR | JAS_STREAM_EOF | JAS_STREAM_RWLIMIT))
1017 if (stream->rwlimit_ >= 0 && stream->rwcnt_ >= stream->rwlimit_) {
1018 stream->flags_ |= JAS_STREAM_RWLIMIT;
1022 return jas_stream_getc2(stream);
1026static inline int jas_stream_putc2(jas_stream_t *stream, jas_uchar c)
1028 stream->bufmode_ |= JAS_STREAM_WRBUF;
1030 if (--stream->cnt_ < 0)
1031 return jas_stream_flushbuf(stream, c);
1034 return (
int)(*stream->ptr_++ = c);
1038static inline int jas_stream_putc_macro(jas_stream_t *stream, jas_uchar c)
1040 if (stream->flags_ & (JAS_STREAM_ERR | JAS_STREAM_EOF | JAS_STREAM_RWLIMIT))
1043 if (stream->rwlimit_ >= 0 && stream->rwcnt_ >= stream->rwlimit_) {
1044 stream->flags_ |= JAS_STREAM_RWLIMIT;
1048 return jas_stream_putc2(stream, c);
JAS_DLLEXPORT int jas_stream_flush(jas_stream_t *stream)
Flush any pending output to a stream.
Definition: jas_stream.c:1001
JAS_DLLEXPORT int jas_stream_pad(jas_stream_t *stream, int count, int value)
Write a fill character multiple times to a stream.
Definition: jas_stream.c:850
JAS_DLLEXPORT 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:720
JAS_DLLEXPORT long jas_stream_seek(jas_stream_t *stream, long offset, int origin)
Set the current position within the stream.
Definition: jas_stream.c:891
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT long jas_stream_tell(jas_stream_t *stream)
Get the current position within the stream.
Definition: jas_stream.c:926
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT int jas_stream_isseekable(jas_stream_t *stream)
Determine if stream supports seeking.
Definition: jas_stream.c:871
JAS_DLLEXPORT jas_stream_t * jas_stream_memopen(char *buffer, int buffer_size)
Open a memory buffer as a stream.
Definition: jas_stream.c:276
JAS_DLLEXPORT int jas_stream_printf(jas_stream_t *stream, const char *format,...)
Write formatted output to a stream.
Definition: jas_stream.c:781
JAS_DLLEXPORT int jas_stream_ungetc(jas_stream_t *stream, int c)
Put a character back on a stream.
Definition: jas_stream.c:652
JAS_DLLEXPORT int jas_stream_puts(jas_stream_t *stream, const char *s)
Write a string to a stream.
Definition: jas_stream.c:794
JAS_DLLEXPORT jas_stream_t * jas_stream_fdopen(int fd, const char *mode)
Open a file descriptor as a stream.
Definition: jas_stream.c:540
JAS_DLLEXPORT jas_stream_t * jas_stream_tmpfile(void)
Open a temporary file as a stream.
Definition: jas_stream.c:490
JAS_DLLEXPORT unsigned jas_stream_write(jas_stream_t *stream, const void *buffer, unsigned count)
Write characters from a buffer to a stream.
Definition: jas_stream.c:735
JAS_ATTRIBUTE_PURE JAS_DLLEXPORT long jas_stream_length(jas_stream_t *stream)
Get the size of the file associated with the specified stream.
Definition: jas_stream.c:1225
JAS_DLLEXPORT 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:807
JAS_DLLEXPORT jas_stream_t * jas_stream_memopen2(char *buffer, size_t buffer_size)
Definition: jas_stream.c:189
JAS_DLLEXPORT long jas_stream_setrwlimit(jas_stream_t *stream, long rwlimit)
Set the read/write limit for a stream.
Definition: jas_stream.c:1164
JAS_DLLEXPORT 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:368
JAS_DLLEXPORT jas_stream_t * jas_stream_fopen(const char *filename, const char *mode)
Open a file as a stream.
Definition: jas_stream.c:301
JAS_DLLEXPORT int jas_stream_gobble(jas_stream_t *stream, int count)
Consume (i.e., discard) characters from stream.
Definition: jas_stream.c:831
JAS_DLLEXPORT int jas_stream_close(jas_stream_t *stream)
Close a stream.
Definition: jas_stream.c:610
JAS_DLLEXPORT unsigned jas_stream_read(jas_stream_t *stream, void *buffer, unsigned count)
Read characters from a stream into a buffer.
Definition: jas_stream.c:670
JAS_DLLEXPORT long jas_stream_setrwcount(jas_stream_t *stream, long rw_count)
Set the read/write count for a stream.
Definition: jas_stream.c:1154
JAS_DLLEXPORT int jas_stream_rewind(jas_stream_t *stream)
Seek to the beginning of a stream.
Definition: jas_stream.c:885
JAS_DLLEXPORT 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:1174
JAS_DLLEXPORT int jas_stream_copy(jas_stream_t *destination, jas_stream_t *source, int count)
Copy data from one stream to another.
Definition: jas_stream.c:1129