/* Misc */
/* -------------------------------------------------------------------------- */
+/* By default, PDCLib does some rather strict checking of function usage, */
+/* especially in <stdio.h>. Things that are undefined by the standard - for */
+/* example, mixing byte / wide operations or read / write operations without */
+/* resetting the stream beforehand - are caught and handled graciously. This */
+/* adds some complexity, and eats a couple of clock cycles. If you want to */
+/* disable these checks, define _PDCLIB_STRICT to zero. */
+#define _PDCLIB_STRICT 1
+
/* The character (sequence) your platform uses as newline. */
#define _PDCLIB_endl "\n"
interrupts). The type itself is not defined in a freestanding environment,
but its limits are. (Don't ask.)
*/
+#define _PDCLIB_sig_atomic int
#define _PDCLIB_SIG_ATOMIC INT
/* Result type of the 'sizeof' operator (must be unsigned) */
/* Set this to the page size of your OS. If your OS does not support paging, set
to an appropriate value. (Too small, and malloc() will call the kernel too
- often. Too large, and you will waste memory.
+ often. Too large, and you will waste memory.)
*/
#define _PDCLIB_PAGESIZE 4096
-/* Set this to the minimum memory node size. Any malloc() for a smaller siz
- will be satisfied by a malloc() of this size instead.
+/* Set this to the minimum memory node size. Any malloc() for a smaller size
+ will be satisfied by a malloc() of this size instead (to avoid excessive
+ fragmentation).
*/
#define _PDCLIB_MINALLOC 8
/* I/O ---------------------------------------------------------------------- */
-/* The unique file descriptor returned by _PDCLIB_open(). */
+/* The type of the file descriptor returned by _PDCLIB_open(). */
typedef int _PDCLIB_fd_t;
+/* The value (of type _PDCLIB_fd_t) returned by _PDCLIB_open() if the operation
+ failed.
+*/
+#define _PDCLIB_NOHANDLE ( (_PDCLIB_fd_t) -1 )
+
/* A type in which to store file offsets. See fgetpos() / fsetpos(). */
+/* FIXME: The 'int' types here are placeholders. When changed, check out
+ stdinit.c, too. */
typedef struct
{
int position;
- int parse_state;
+ int mbstate;
} _PDCLIB_fpos_t;
/* The default size for file buffers. Must be at least 256. */
#define _PDCLIB_BUFSIZ 1024
/* The minimum number of files the implementation can open simultaneously. Must
- be at least 8.
+ be at least 8. Depends largely on how the bookkeeping is done by fopen() /
+ freopen() / fclose().
*/
#define _PDCLIB_FOPEN_MAX 8
/* Number of distinct file names that can be generated by tmpnam(). */
#define _PDCLIB_TMP_MAX 50
+
+/* The number of times fflush() tries to write a file buffer before giving up
+ if no characters can be written.
+*/
+#define _PDCLIB_FLUSH_RETRIES 3
+/* This macro is executed after each try to write characters that results in
+ no characters being written. You can define this to be empty, wait a short
+ period of time, or whatever suits your environment.
+*/
+#define _PDCLIB_FLUSH_RETRY_PREP
+