-#ifndef _PDCLIB_IO_H\r
-#define _PDCLIB_IO_H\r
-#include "_PDCLIB_int.h"\r
-#include "_PDCLIB_threadconfig.h"\r
-\r
-/* PDCLib internal I/O logic <_PDCLIB_int.h>\r
-\r
- This file is part of the Public Domain C Library (PDCLib).\r
- Permission is granted to use, modify, and / or redistribute at will.\r
-*/\r
-\r
-/* Flags for representing mode (see fopen()). Note these must fit the same\r
- status field as the _IO?BF flags in <stdio.h> and the internal flags below.\r
-*/\r
-#define _PDCLIB_FREAD 8u\r
-#define _PDCLIB_FWRITE 16u\r
-#define _PDCLIB_FAPPEND 32u \r
-#define _PDCLIB_FRW 64u\r
-#define _PDCLIB_FBIN 128u\r
-\r
-/* Internal flags, made to fit the same status field as the flags above. */\r
-/* -------------------------------------------------------------------------- */\r
-/* free() the buffer memory on closing (false for user-supplied buffer) */\r
-#define _PDCLIB_FREEBUFFER 512u\r
-/* stream has encountered error / EOF */\r
-#define _PDCLIB_ERRORFLAG 1024u\r
-#define _PDCLIB_EOFFLAG 2048u\r
-/* stream is wide-oriented */\r
-#define _PDCLIB_WIDESTREAM 4096u\r
-/* stream is byte-oriented */\r
-#define _PDCLIB_BYTESTREAM 8192u\r
-/* file associated with stream should be remove()d on closing (tmpfile()) */\r
-#define _PDCLIB_DELONCLOSE 16384u\r
-/* stream handle should not be free()d on close (stdin, stdout, stderr) */\r
-#define _PDCLIB_STATIC 32768u\r
-\r
-typedef union _PDCLIB_fd\r
-{\r
-#if defined(_PDCLIB_OSFD_T)\r
- _PDCLIB_OSFD_T osfd;\r
-#endif\r
- void * pointer;\r
- _PDCLIB_uintptr_t uval;\r
- _PDCLIB_intptr_t sval; \r
-} _PDCLIB_fd_t;\r
-\r
-/* Internal functions */\r
-/* Writes a stream's buffer.\r
- Returns 0 on success, EOF on write error.\r
- Sets stream error flags and errno appropriately on error.\r
-*/\r
-int _PDCLIB_flushbuffer( struct _PDCLIB_file_t * stream );\r
-\r
-/* Fills a stream's buffer.\r
- Returns 0 on success, EOF on read error / EOF.\r
- Sets stream EOF / error flags and errno appropriately on error.\r
-*/\r
-int _PDCLIB_fillbuffer( struct _PDCLIB_file_t * stream );\r
-\r
-/* Repositions within a file. Returns new offset on success,\r
- -1 / errno on error.\r
-*/\r
-_PDCLIB_int_fast64_t _PDCLIB_seek( struct _PDCLIB_file_t * stream, \r
- _PDCLIB_int_fast64_t offset, int whence );\r
-\r
-/* File backend I/O operations\r
- *\r
- * PDCLib will call through to these methods as needed to implement the stdio\r
- * functions.\r
- */\r
-typedef struct _PDCLIB_fileops\r
-{\r
- /*! Read length bytes from the file into buf; returning the number of bytes\r
- * actually read in *numBytesRead.\r
- *\r
- * Returns true if bytes were read successfully; on end of file, returns\r
- * true with *numBytesRead == 0.\r
- *\r
- * On error, returns false and sets errno appropriately. *numBytesRead is\r
- * ignored in this situation.\r
- */\r
- _PDCLIB_bool (*read)( _PDCLIB_fd_t self, \r
- void * buf, \r
- _PDCLIB_size_t length, \r
- _PDCLIB_size_t * numBytesRead );\r
-\r
- /*! Write length bytes to the file from buf; returning the number of bytes\r
- * actually written in *numBytesWritten\r
- *\r
- * Returns true if bytes were written successfully. On error, returns false\r
- * and setss errno appropriately (as with read, *numBytesWritten is \r
- * ignored)\r
- */\r
- _PDCLIB_bool (*write)( _PDCLIB_fd_t self, const void * buf, \r
- _PDCLIB_size_t length, _PDCLIB_size_t * numBytesWritten );\r
-\r
- /* Seek to the file offset specified by offset, from location whence, which\r
- * may be one of the standard constants SEEK_SET/SEEK_CUR/SEEK_END\r
- */\r
- _PDCLIB_bool (*seek)( _PDCLIB_fd_t self, _PDCLIB_int_fast64_t offset, \r
- int whence, _PDCLIB_int_fast64_t *newPos );\r
-\r
- void (*close)( _PDCLIB_fd_t self );\r
-\r
- /*! Behaves as read does, except for wide characters. Both length and \r
- * *numCharsRead represent counts of characters, not bytes.\r
- *\r
- * This function is optional; if missing, PDCLib will buffer the character\r
- * data as bytes and perform translation directly into the user's buffers.\r
- * It is useful if your backend can directly take wide characters (for \r
- * example, the Windows console)\r
- */\r
- _PDCLIB_bool (*wread)( _PDCLIB_fd_t self, _PDCLIB_wchar_t * buf, \r
- _PDCLIB_size_t length, _PDCLIB_size_t * numCharsRead );\r
-\r
- /* Behaves as write does, except for wide characters. As with wread, both\r
- * length and *numCharsWritten are character counts.\r
- *\r
- * This function is also optional; if missing, PDCLib will buffer the \r
- * character data as bytes and do translation directly from the user's \r
- * buffers. You only need to implement this if your backend can directly \r
- * take wide characters (for example, the Windows console)\r
- */\r
- _PDCLIB_bool (*wwrite)( _PDCLIB_fd_t self, const _PDCLIB_wchar_t * buf, \r
- _PDCLIB_size_t length, _PDCLIB_size_t * numCharsWritten );\r
-} _PDCLIB_fileops_t;\r
-\r
-/* Position / status structure for getpos() / fsetpos(). */\r
-struct _PDCLIB_fpos_t\r
-{\r
- _PDCLIB_int_fast64_t offset; /* File position offset */\r
- int status; /* Multibyte parsing state (unused, reserved) */\r
-};\r
-\r
-/* FILE structure */\r
-struct _PDCLIB_file_t\r
-{\r
- const _PDCLIB_fileops_t * ops;\r
- _PDCLIB_fd_t handle; /* OS file handle */\r
- _PDCLIB_MTX_T lock; /* file lock */\r
- char * buffer; /* Pointer to buffer memory */\r
- _PDCLIB_size_t bufsize; /* Size of buffer */\r
- _PDCLIB_size_t bufidx; /* Index of current position in buffer */\r
- _PDCLIB_size_t bufend; /* Index of last pre-read character in buffer */\r
- struct _PDCLIB_fpos_t pos; /* Offset and multibyte parsing state */\r
- _PDCLIB_size_t ungetidx; /* Number of ungetc()'ed characters */\r
- unsigned char * ungetbuf; /* ungetc() buffer */\r
- unsigned int status; /* Status flags; see above */\r
- /* multibyte parsing status to be added later */\r
- char * filename; /* Name the current stream has been opened with */\r
- struct _PDCLIB_file_t * next; /* Pointer to next struct (internal) */\r
-};\r
-\r
-\r
-#endif\r
+/* PDCLib I/O support <_PDCLIB_io.h>
+
+ This file is part of the Public Domain C Library (PDCLib).
+ Permission is granted to use, modify, and / or redistribute at will.
+*/
+
+#ifndef __PDCLIB_IO_H
+#define __PDCLIB_IO_H __PDCLIB_IO_H
+
+#include "_PDCLIB_int.h"
+#include "_PDCLIB_threadconfig.h"
+
+/* Flags for representing mode (see fopen()). Note these must fit the same
+ status field as the _IO?BF flags in <stdio.h> and the internal flags below.
+*/
+#define _PDCLIB_FREAD 8u
+#define _PDCLIB_FWRITE 16u
+#define _PDCLIB_FAPPEND 32u
+#define _PDCLIB_FRW 64u
+#define _PDCLIB_FBIN 128u
+
+/* Internal flags, made to fit the same status field as the flags above. */
+/* -------------------------------------------------------------------------- */
+/* free() the buffer memory on closing (false for user-supplied buffer) */
+#define _PDCLIB_FREEBUFFER 512u
+/* stream has encountered error / EOF */
+#define _PDCLIB_ERRORFLAG 1024u
+#define _PDCLIB_EOFFLAG 2048u
+/* stream is wide-oriented */
+#define _PDCLIB_WIDESTREAM 4096u
+/* stream is byte-oriented */
+#define _PDCLIB_BYTESTREAM 8192u
+/* file associated with stream should be remove()d on closing (tmpfile()) */
+#define _PDCLIB_DELONCLOSE 16384u
+/* stream handle should not be free()d on close (stdin, stdout, stderr) */
+#define _PDCLIB_STATIC 32768u
+
+union _PDCLIB_fd
+{
+#if defined(_PDCLIB_OSFD_T)
+ _PDCLIB_OSFD_T osfd;
+#endif
+ void * pointer;
+ _PDCLIB_uintptr_t uval;
+ _PDCLIB_intptr_t sval;
+};
+
+/******************************************************************************/
+/* Internal functions */
+/******************************************************************************/
+
+/* The worker for all printf() type of functions. The pointer spec should point
+ to the introducing '%' of a conversion specifier. The status structure is to
+ be that of the current printf() function, of which the members n, s, stream
+ and arg will be preserved; i will be updated; and all others will be trashed
+ by the function.
+ Returns the number of characters parsed as a conversion specifier (0 if none
+ parsed); returns -1 if the underlying I/O callback returns failure.
+*/
+int _PDCLIB_print( const char * spec, struct _PDCLIB_status_t * status );
+
+/* The worker for all scanf() type of functions. The pointer spec should point
+ to the introducing '%' of a conversion specifier. The status structure is to
+ be that of the current scanf() function, of which the member stream will be
+ preserved; n, i, and s will be updated; and all others will be trashed by
+ the function.
+ Returns a pointer to the first character not parsed as conversion specifier,
+ or NULL in case of error.
+ FIXME: Should distinguish between matching and input error
+*/
+const char * _PDCLIB_scan( const char * spec, struct _PDCLIB_status_t * status );
+
+/* Parsing any fopen() style filemode string into a number of flags. */
+unsigned int _PDCLIB_filemode( const char * mode );
+
+/* Sanity checking and preparing of read buffer, should be called first thing
+ by any stdio read-data function.
+ Returns 0 on success, EOF on error.
+ On error, EOF / error flags and errno are set appropriately.
+*/
+int _PDCLIB_prepread( _PDCLIB_file_t * stream );
+
+/* Sanity checking, should be called first thing by any stdio write-data
+ function.
+ Returns 0 on success, EOF on error.
+ On error, error flags and errno are set appropriately.
+*/
+int _PDCLIB_prepwrite( _PDCLIB_file_t * stream );
+
+/* Closing all streams on program exit */
+void _PDCLIB_closeall( void );
+
+/* Writes a stream's buffer.
+ Returns 0 on success, EOF on write error.
+ Sets stream error flags and errno appropriately on error.
+*/
+int _PDCLIB_flushbuffer( _PDCLIB_file_t * stream );
+
+/* Fills a stream's buffer.
+ Returns 0 on success, EOF on read error / EOF.
+ Sets stream EOF / error flags and errno appropriately on error.
+*/
+int _PDCLIB_fillbuffer( _PDCLIB_file_t * stream );
+
+/* Repositions within a file. Returns new offset on success,
+ -1 / errno on error.
+*/
+_PDCLIB_int_fast64_t _PDCLIB_seek( _PDCLIB_file_t * stream,
+ _PDCLIB_int_fast64_t offset, int whence );
+
+/* File backend I/O operations
+ *
+ * PDCLib will call through to these methods as needed to implement the stdio
+ * functions.
+ */
+struct _PDCLIB_fileops
+{
+ /*! Read length bytes from the file into buf; returning the number of bytes
+ * actually read in *numBytesRead.
+ *
+ * Returns true if bytes were read successfully; on end of file, returns
+ * true with *numBytesRead == 0.
+ *
+ * On error, returns false and sets errno appropriately. *numBytesRead is
+ * ignored in this situation.
+ */
+ _PDCLIB_bool (*read)( _PDCLIB_fd_t self,
+ void * buf,
+ _PDCLIB_size_t length,
+ _PDCLIB_size_t * numBytesRead );
+
+ /*! Write length bytes to the file from buf; returning the number of bytes
+ * actually written in *numBytesWritten
+ *
+ * Returns true if bytes were written successfully. On error, returns false
+ * and setss errno appropriately (as with read, *numBytesWritten is
+ * ignored)
+ */
+ _PDCLIB_bool (*write)( _PDCLIB_fd_t self, const void * buf,
+ _PDCLIB_size_t length, _PDCLIB_size_t * numBytesWritten );
+
+ /* Seek to the file offset specified by offset, from location whence, which
+ * may be one of the standard constants SEEK_SET/SEEK_CUR/SEEK_END
+ */
+ _PDCLIB_bool (*seek)( _PDCLIB_fd_t self, _PDCLIB_int_fast64_t offset,
+ int whence, _PDCLIB_int_fast64_t *newPos );
+
+ void (*close)( _PDCLIB_fd_t self );
+
+ /*! Behaves as read does, except for wide characters. Both length and
+ * *numCharsRead represent counts of characters, not bytes.
+ *
+ * This function is optional; if missing, PDCLib will buffer the character
+ * data as bytes and perform translation directly into the user's buffers.
+ * It is useful if your backend can directly take wide characters (for
+ * example, the Windows console)
+ */
+ _PDCLIB_bool (*wread)( _PDCLIB_fd_t self, _PDCLIB_wchar_t * buf,
+ _PDCLIB_size_t length, _PDCLIB_size_t * numCharsRead );
+
+ /* Behaves as write does, except for wide characters. As with wread, both
+ * length and *numCharsWritten are character counts.
+ *
+ * This function is also optional; if missing, PDCLib will buffer the
+ * character data as bytes and do translation directly from the user's
+ * buffers. You only need to implement this if your backend can directly
+ * take wide characters (for example, the Windows console)
+ */
+ _PDCLIB_bool (*wwrite)( _PDCLIB_fd_t self, const _PDCLIB_wchar_t * buf,
+ _PDCLIB_size_t length, _PDCLIB_size_t * numCharsWritten );
+};
+
+/* struct _PDCLIB_file structure */
+struct _PDCLIB_file
+{
+ const _PDCLIB_fileops_t * ops;
+ _PDCLIB_fd_t handle; /* OS file handle */
+ _PDCLIB_MTX_T lock; /* file lock */
+ char * buffer; /* Pointer to buffer memory */
+ _PDCLIB_size_t bufsize; /* Size of buffer */
+ _PDCLIB_size_t bufidx; /* Index of current position in buffer */
+ _PDCLIB_size_t bufend; /* Index of last pre-read character in buffer */
+#ifdef _PDCLIB_NEED_EOL_TRANSLATION
+ _PDCLIB_size_t bufnlexp; /* Current position of buffer newline expansion */
+#endif
+ _PDCLIB_size_t ungetidx; /* Number of ungetc()'ed characters */
+ unsigned char * ungetbuf; /* ungetc() buffer */
+ unsigned int status; /* Status flags; see above */
+ /* multibyte parsing status to be added later */
+ _PDCLIB_fpos_t pos; /* Offset and multibyte parsing state */
+ char * filename; /* Name the current stream has been opened with */
+ _PDCLIB_file_t * next; /* Pointer to next struct (internal) */
+};
+
+static inline _PDCLIB_size_t _PDCLIB_getchars( char * out, _PDCLIB_size_t n,
+ int stopchar,
+ _PDCLIB_file_t * stream )
+{
+ _PDCLIB_size_t i = 0;
+ int c;
+ while ( stream->ungetidx > 0 && i != n )
+ {
+ c = (unsigned char)
+ ( out[ i++ ] = stream->ungetbuf[ --(stream->ungetidx) ] );
+ if( c == stopchar )
+ return i;
+ }
+
+ while ( i != n )
+ {
+ while ( stream->bufidx != stream->bufend && i != n)
+ {
+ c = (unsigned char) stream->buffer[ stream->bufidx++ ];
+#ifdef _PDCLIB_NEED_EOL_TRANSLATION
+ if ( !( stream->status & _PDCLIB_FBIN ) && c == '\r' )
+ {
+ if ( stream->bufidx == stream->bufend )
+ break;
+
+ if ( stream->buffer[ stream->bufidx ] == '\n' )
+ {
+ c = '\n';
+ stream->bufidx++;
+ }
+ }
+#endif
+ out[ i++ ] = c;
+
+ if( c == stopchar )
+ return i;
+ }
+
+ if ( i != n )
+ {
+ if( _PDCLIB_fillbuffer( stream ) == -1 )
+ {
+ break;
+ }
+ }
+ }
+
+#ifdef _PDCLIB_NEED_EOL_TRANSLATION
+ if ( i != n && stream->bufidx != stream->bufend )
+ {
+ // we must have EOF'd immediately after a \r
+ out[ i++ ] = stream->buffer[ stream->bufidx++ ];
+ }
+#endif
+
+ return i;
+}
+
+/* Unlocked functions - internal names
+ *
+ * We can't use the functions using their "normal" names internally because that
+ * would cause namespace leakage. Therefore, we use them by prefixed internal
+ * names
+ */
+void _PDCLIB_flockfile(struct _PDCLIB_file *file) _PDCLIB_nothrow;
+int _PDCLIB_ftrylockfile(struct _PDCLIB_file *file) _PDCLIB_nothrow;
+void _PDCLIB_funlockfile(struct _PDCLIB_file *file) _PDCLIB_nothrow;
+
+int _PDCLIB_getc_unlocked(struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_getchar_unlocked(void) _PDCLIB_nothrow;
+int _PDCLIB_putc_unlocked(int c, struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_putchar_unlocked(int c) _PDCLIB_nothrow;
+void _PDCLIB_clearerr_unlocked(struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_feof_unlocked(struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_ferror_unlocked(struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_fflush_unlocked(struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_fgetc_unlocked(struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_fputc_unlocked(int c, struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+_PDCLIB_size_t _PDCLIB_fread_unlocked(void *ptr, _PDCLIB_size_t size, _PDCLIB_size_t n, struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+_PDCLIB_size_t _PDCLIB_fwrite_unlocked(const void *ptr, _PDCLIB_size_t size, _PDCLIB_size_t n, struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+char *_PDCLIB_fgets_unlocked(char *s, int n, struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_fputs_unlocked(const char *s, struct _PDCLIB_file *stream) _PDCLIB_nothrow;
+int _PDCLIB_fgetpos_unlocked( struct _PDCLIB_file * _PDCLIB_restrict stream, _PDCLIB_fpos_t * _PDCLIB_restrict pos ) _PDCLIB_nothrow;
+int _PDCLIB_fsetpos_unlocked( struct _PDCLIB_file * stream, const _PDCLIB_fpos_t * pos ) _PDCLIB_nothrow;
+long int _PDCLIB_ftell_unlocked( struct _PDCLIB_file * stream ) _PDCLIB_nothrow;
+int _PDCLIB_fseek_unlocked( struct _PDCLIB_file * stream, long int offset, int whence ) _PDCLIB_nothrow;
+void _PDCLIB_rewind_unlocked( struct _PDCLIB_file * stream ) _PDCLIB_nothrow;
+
+int _PDCLIB_puts_unlocked( const char * s ) _PDCLIB_nothrow;
+int _PDCLIB_ungetc_unlocked( int c, struct _PDCLIB_file * stream ) _PDCLIB_nothrow;
+
+
+int _PDCLIB_printf_unlocked( const char * _PDCLIB_restrict format, ... ) _PDCLIB_nothrow;
+int _PDCLIB_vprintf_unlocked( const char * _PDCLIB_restrict format, _PDCLIB_va_list arg ) _PDCLIB_nothrow;
+int _PDCLIB_fprintf_unlocked( struct _PDCLIB_file * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, ... ) _PDCLIB_nothrow;
+int _PDCLIB_vfprintf_unlocked( struct _PDCLIB_file * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, _PDCLIB_va_list arg ) _PDCLIB_nothrow;
+int _PDCLIB_scanf_unlocked( const char * _PDCLIB_restrict format, ... ) _PDCLIB_nothrow;
+int _PDCLIB_vscanf_unlocked( const char * _PDCLIB_restrict format, _PDCLIB_va_list arg ) _PDCLIB_nothrow;
+int _PDCLIB_fscanf_unlocked( struct _PDCLIB_file * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, ... ) _PDCLIB_nothrow;
+int _PDCLIB_vfscanf_unlocked( struct _PDCLIB_file * _PDCLIB_restrict stream, const char * _PDCLIB_restrict format, _PDCLIB_va_list arg ) _PDCLIB_nothrow;
+
+#endif