-/* $Id$ */
+#ifndef _PDCLIB_CONFIG_H
+#define _PDCLIB_CONFIG_H
/* Internal PDCLib configuration <_PDCLIB_config.h>
(Generic Template)
/* specific platforms, e.g. by swapping int instead of char. */
#define _PDCLIB_memswp( i, j, size ) char tmp; do { tmp = *i; *i++ = *j; *j++ = tmp; } while ( --size );
-/* Define this to some compiler directive that can be written after the */
-/* parameter list of a function declaration to indicate the function does */
-/* never return. If your compiler does not support such a directive, define */
-/* to nothing. (This is to avoid warnings with the exit functions under GCC.) */
-#define _PDCLIB_NORETURN __attribute__(( noreturn ))
-
-/* The maximum value that errno can be set to. This is used to set the size */
-/* of the array in struct lconv (<locale.h>) holding error messages for the */
-/* strerror() and perror() functions. (If you change this value because you */
-/* are using additional errno values, you *HAVE* to provide appropriate error */
-/* messages for *ALL* locales.) */
-/* Default is 2 (0, ERANGE, EDOM). */
-#define _PDCLIB_ERRNO_MAX 3
-
/* -------------------------------------------------------------------------- */
/* Integers */
/* -------------------------------------------------------------------------- */
/* compiler manuals. */
#define _PDCLIB_SHRT_BYTES 2
#define _PDCLIB_INT_BYTES 4
-#define _PDCLIB_LONG_BYTES 4
+#if defined(__LP64__) || defined(_LP64)
+# define _PDCLIB_LONG_BYTES 8
+#else
+# define _PDCLIB_LONG_BYTES 4
+#endif
#define _PDCLIB_LLONG_BYTES 8
/* <stdlib.h> defines the div() function family that allows taking quotient */
/* -------------------------------------------------------------------------- */
/* The result type of substracting two pointers */
-#define _PDCLIB_ptrdiff int
-#define _PDCLIB_PTRDIFF INT
+#define _PDCLIB_ptrdiff long
+#define _PDCLIB_PTRDIFF LONG
#define _PDCLIB_PTR_CONV
/* An integer type that can be accessed as atomic entity (think asynchronous
#define _PDCLIB_SIG_ATOMIC INT
/* Result type of the 'sizeof' operator (must be unsigned) */
-#define _PDCLIB_size unsigned int
-#define _PDCLIB_SIZE UINT
+#define _PDCLIB_size unsigned long
+#define _PDCLIB_SIZE ULONG
/* Large enough an integer to hold all character codes of the largest supported
locale.
*/
-#define _PDCLIB_wchar unsigned short
-#define _PDCLIB_WCHAR USHRT
+#define _PDCLIB_wint signed int
+#define _PDCLIB_wchar unsigned int
+#define _PDCLIB_WCHAR UINT
-#define _PDCLIB_intptr int
-#define _PDCLIB_INTPTR INT
+#define _PDCLIB_intptr long
+#define _PDCLIB_INTPTR LONG
/* Largest supported integer type. Implementation note: see _PDCLIB_atomax(). */
#define _PDCLIB_intmax long long int
_PDCLIB_intmax rem;
};
+/* <time.h>: time_t
+ * The C standard doesn't define what representation of time is stored in
+ * time_t when returned by time() , but POSIX defines it to be seconds since the
+ * UNIX epoch and most appplications expect that.
+ *
+ * time_t is also used as the tv_sec member of struct timespec, which *is*
+ * defined as a linear count of seconds.
+ *
+ * time_t is defined as a "real type", so may be a floating point type, but with
+ * the presence of the nanosecond accurate struct timespec, and with the lack of
+ * any functions for manipulating more accurate values of time_t, this is
+ * probably not useful.
+ */
+#define _PDCLIB_time unsigned long long
+
+/* <time.h>: clock_t
+ *
+ * A count of "clock ticks", where the length of a clock tick is unspecified by
+ * the standard. The implementation is required to provide a macro,
+ * CLOCKS_PER_SEC, which is the number of "clock ticks" which corresponds to one
+ * second.
+ *
+ * clock_t may be any real type (i.e. integral or floating), and its type on
+ * various systems differs.
+ *
+ * On XSI systems, CLOCKS_PER_SEC must be defined to 1000000
+ */
+#define _PDCLIB_clock double
+#define _PDCLIB_CLOCKS_PER_SEC 1000000
+
+/* <time.h>: TIME_UTC
+ *
+ * The TIME_UTC parameter is passed to the timespec_get function in order to get
+ * the system time in UTC since an implementation defined epoch (not necessarily
+ * the same as that used for time_t). That said, on POSIX the obvious
+ * implementation of timespec_get for TIME_UTC is to wrap
+ * clock_gettime(CLOCK_REALTIME, ...), which is defined as time in UTC since the
+ * same epoch.
+ *
+ * This may be any non-zero integer value.
+ */
+#define _PDCLIB_TIME_UTC 1
+
/* -------------------------------------------------------------------------- */
/* Floating Point */
/* -------------------------------------------------------------------------- */
*/
#define _PDCLIB_DECIMAL_DIG 17
+/* Floating point types
+ *
+ * PDCLib (at present) assumes IEEE 754 floating point formats
+ * The following names are used:
+ * SINGLE: IEEE 754 single precision (32-bit)
+ * DOUBLE: IEEE 754 double precision (64-bit)
+ * EXTENDED: IEEE 754 extended precision (80-bit, as x87)
+ */
+#define _PDCLIB_FLOAT_TYPE SINGLE
+#define _PDCLIB_DOUBLE_TYPE DOUBLE
+#if defined(__i386__) || defined(__amd64__)
+ #define _PDCLIB_LDOUBLE_TYPE EXTENDED
+#else
+ #define _PDCLIB_LDOUBLE_TYPE DOUBLE
+#endif
+
/* -------------------------------------------------------------------------- */
/* Platform-dependent macros defined by the standard headers. */
/* -------------------------------------------------------------------------- */
to an appropriate value. (Too small, and malloc() will call the kernel too
often. Too large, and you will waste memory.)
*/
-#define _PDCLIB_PAGESIZE 4096
+#define _PDCLIB_MALLOC_PAGESIZE 4096
+#define _PDCLIB_MALLOC_ALIGN 16
+#define _PDCLIB_MALLOC_GRANULARITY 64*1024
+#define _PDCLIB_MALLOC_TRIM_THRESHOLD 2*1024*1024
+#define _PDCLIB_MALLOC_MMAP_THRESHOLD 256*1024
+#define _PDCLIB_MALLOC_RELEASE_CHECK_RATE 4095
-/* 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
+/* TODO: Better document these */
-/* I/O ---------------------------------------------------------------------- */
+/* Locale --------------------------------------------------------------------*/
-/* The type of the file descriptor returned by _PDCLIB_open(). */
-typedef int _PDCLIB_fd_t;
+/* Locale method. See _PDCLIB_locale.h */
+/* #define _PDCLIB_LOCALE_METHOD _PDCLIB_LOCALE_METHOD_TSS */
-/* The value (of type _PDCLIB_fd_t) returned by _PDCLIB_open() if the operation
- failed.
-*/
-#define _PDCLIB_NOHANDLE ( (_PDCLIB_fd_t) -1 )
+/* wchar_t encoding */
+#define _PDCLIB_WCHAR_ENCODING _PDCLIB_WCHAR_ENCODING_UCS4
+
+/* I/O ---------------------------------------------------------------------- */
/* The default size for file buffers. Must be at least 256. */
#define _PDCLIB_BUFSIZ 1024
prefix removed by <errno.h> mechanics).
If you do not want that kind of translation, you might want to "match" the
- values used by PDCLib with those used by the host OS, as to avoid confusion.
+ values used by PDCLib with those used by the host OS, to avoid confusion.
- The standard only defines three distinct errno values: ERANGE, EDOM, and
+ The C standard only defines three distinct errno values: ERANGE, EDOM, and
EILSEQ. The standard leaves it up to "the implementation" whether there are
- any more beyond those three. There is some controversy as to whether errno is
- such a good idea at all, so you might want to come up with a different error
- reporting facility for your platform. Since errno values beyond the three
- defined by the standard are not portable anyway (unless you look at POSIX),
- having your own error reporting facility would not hurt anybody either.
-*/
-#define _PDCLIB_ERANGE 1
-#define _PDCLIB_EDOM 2
-#define _PDCLIB_EILSEQ 3
-
-/* The following is not strictly "configuration", but there is no better place
- to explain it than here.
-
- PDCLib strives to be as generic as possible, so by default it does NOT define
- any values beyond the three standard ones above, even where it would have
- been prudent and convenient to do so. Any errno "caught" from the host OS,
- and some internal error conditions as well, are all lumped together into the
- value of '_PDCLIB_ERROR'.
-
- '_PDCLIB_ERROR' is STRICLY meant as a PLACEHOLDER only.
-
- You should NEVER ship an adaption of PDCLib still using that particular
- value. You should NEVER write code that *tests* for that value. Indeed it is
- not even conforming, since errno values should be defined as beginning with
- an uppercase 'E', and there is no mechanics in <errno.h> to unmask that
- particular value (for exactly that reason).
-
- The idea is that you scan the source of PDCLib for occurrences of this macro
- and replace _PDCLIB_ERROR with whatever additional errno value you came up
- with for your platform.
-
- If you cannot find it within you to do that, tell your clients to check for
- an errno value larger than zero. That, at least, would be standard compliant
- (and fully portable).
+ any more beyond those three.
+
+ However, C++11 introduced the whole list of POSIX errno values into the
+ standard, so PDCLib might as well define those as well.
+
+ Sometimes the standard says to set errno to indicate an error, but does not
+ prescribe a value. We will use a value from the following list. If POSIX
+ defines a value, we use that; otherwise, we use as seems suitable.
*/
-#define _PDCLIB_ERROR 4
+/* These values were taken from Linux, gcc 4.8. */
+#define _PDCLIB_E2BIG 7
+#define _PDCLIB_EACCES 13
+#define _PDCLIB_EADDRINUSE 98
+#define _PDCLIB_EADDRNOTAVAIL 99
+#define _PDCLIB_EAFNOSUPPORT 97
+#define _PDCLIB_EAGAIN 11
+#define _PDCLIB_EALREADY 114
+#define _PDCLIB_EBADF 9
+#define _PDCLIB_EBADMSG 74
+#define _PDCLIB_EBUSY 16
+#define _PDCLIB_ECANCELED 125
+#define _PDCLIB_ECHILD 10
+#define _PDCLIB_ECONNABORTED 103
+#define _PDCLIB_ECONNREFUSED 111
+#define _PDCLIB_ECONNRESET 104
+#define _PDCLIB_EDEADLK 35
+#define _PDCLIB_EDESTADDRREQ 89
+#define _PDCLIB_EDOM 33
+#define _PDCLIB_EEXIST 17
+#define _PDCLIB_EFAULT 14
+#define _PDCLIB_EFBIG 27
+#define _PDCLIB_EHOSTUNREACH 113
+#define _PDCLIB_EIDRM 43
+#define _PDCLIB_EILSEQ 84
+#define _PDCLIB_EINPROGRESS 115
+#define _PDCLIB_EINTR 4
+#define _PDCLIB_EINVAL 22
+#define _PDCLIB_EIO 5
+#define _PDCLIB_EISCONN 106
+#define _PDCLIB_EISDIR 21
+#define _PDCLIB_ELOOP 40
+#define _PDCLIB_EMFILE 24
+#define _PDCLIB_EMLINK 31
+#define _PDCLIB_EMSGSIZE 90
+#define _PDCLIB_ENAMETOOLONG 36
+#define _PDCLIB_ENETDOWN 100
+#define _PDCLIB_ENETRESET 102
+#define _PDCLIB_ENETUNREACH 101
+#define _PDCLIB_ENFILE 23
+#define _PDCLIB_ENOBUFS 105
+#define _PDCLIB_ENODATA 61
+#define _PDCLIB_ENODEV 19
+#define _PDCLIB_ENOENT 2
+#define _PDCLIB_ENOEXEC 8
+#define _PDCLIB_ENOLCK 37
+#define _PDCLIB_ENOLINK 67
+#define _PDCLIB_ENOMEM 12
+#define _PDCLIB_ENOMSG 42
+#define _PDCLIB_ENOPROTOOPT 92
+#define _PDCLIB_ENOSPC 28
+#define _PDCLIB_ENOSR 63
+#define _PDCLIB_ENOSTR 60
+#define _PDCLIB_ENOSYS 38
+#define _PDCLIB_ENOTCONN 107
+#define _PDCLIB_ENOTDIR 20
+#define _PDCLIB_ENOTEMPTY 39
+#define _PDCLIB_ENOTRECOVERABLE 131
+#define _PDCLIB_ENOTSOCK 88
+#define _PDCLIB_ENOTSUP 95
+#define _PDCLIB_ENOTTY 25
+#define _PDCLIB_ENXIO 6
+#define _PDCLIB_EOPNOTSUPP 95
+#define _PDCLIB_EOVERFLOW 75
+#define _PDCLIB_EOWNERDEAD 130
+#define _PDCLIB_EPERM 1
+#define _PDCLIB_EPIPE 32
+#define _PDCLIB_EPROTO 71
+#define _PDCLIB_EPROTONOSUPPORT 93
+#define _PDCLIB_EPROTOTYPE 91
+#define _PDCLIB_ERANGE 34
+#define _PDCLIB_EROFS 30
+#define _PDCLIB_ESPIPE 29
+#define _PDCLIB_ESRCH 3
+#define _PDCLIB_ETIME 62
+#define _PDCLIB_ETIMEDOUT 110
+#define _PDCLIB_ETXTBSY 26
+#define _PDCLIB_EWOULDBLOCK 11
+#define _PDCLIB_EXDEV 18
+
+/* This is used to set the size of the array in struct lconv (<locale.h>) */
+/* holding the error messages for the strerror() and perror() fuctions. If */
+/* you change this value because you are using additional errno values, you */
+/* *HAVE* to provide appropriate error messages for *ALL* locales. */
+/* Needs to be one higher than the highest errno value above. */
+#define _PDCLIB_ERRNO_MAX 132
+
+#endif