*
* See the typedefs for type size assumptions. These typedefs *must* be kept
* in sync with the types used in Mono.Posix.dll.
+ *
+ * See also:
+ * http://developer.apple.com/documentation/Darwin/Reference/ManPages/
*/
#ifndef INC_mph_H
#define INC_mph_H
-#include <stdint.h> /* for SIZE_MAX */
-#include <limits.h>
-#include <glib/gtypes.h>
+#include <config.h>
+
+#include <stddef.h> /* offsetof */
+#include <limits.h> /* LONG_MAX, ULONG_MAX */
+#include <errno.h> /* for ERANGE */
+#include <glib.h> /* for g* types, etc. */
+
+#ifdef HAVE_STDINT_H
+#include <stdint.h> /* for SIZE_MAX */
+#endif
+
+#if __APPLE__ || __BSD__ || __FreeBSD__ || __OpenBSD__
+#define MPH_ON_BSD
+#endif
-#ifdef _LARGEFILE64_SOURCE
-#define MPH_USE_64_API
+#ifdef HAVE_VISIBILITY_HIDDEN
+#define MPH_INTERNAL __attribute__((visibility("hidden")))
+#else
+#define MPH_INTERNAL
#endif
+#if !defined(EOVERFLOW)
+# if defined(HOST_WIN32)
+# define EOVERFLOW 75
+# elif defined(__OpenBSD__)
+# define EOVERFLOW 87
+# endif
+#endif /* !defined(EOVERFLOW) */
+
+#if !defined (HOST_WIN32)
+
+/*
+ * Solaris doesn't define these BSD values, and if they're not present then
+ * map.c:Mono_Posix_FromSeekFlags() breaks badly; see:
+ * http://bugzilla.gnome.org/show_bug.cgi?id=370081
+ */
+
+#ifndef L_SET
+#define L_SET SEEK_SET
+#endif /* ndef L_SET */
+
+#ifndef L_INCR
+#define L_INCR SEEK_CUR
+#endif /* ndef L_INCR */
+
+#ifndef L_XTND
+#define L_XTND SEEK_END
+#endif /* ndef L_XTND */
+
+/*
+ * XATTR_AUTO is a synonym for 0 within XattrFlags, but most systems don't
+ * define it. map.c doesn't know that, though, so we ensure that it's defined
+ * so that the value 0 round-trips through MonoPosixHelper.
+ */
+
+#ifndef XATTR_AUTO
+#define XATTR_AUTO 0
+#endif /* ndef XATTR_AUTO */
+
+#endif /* ndef HOST_WIN32 */
+
typedef gint64 mph_blkcnt_t;
typedef gint64 mph_blksize_t;
typedef guint64 mph_dev_t;
typedef guint32 mph_uid_t;
typedef gint64 mph_time_t;
typedef gint64 mph_clock_t;
+typedef guint64 mph_fsblkcnt_t;
+typedef guint64 mph_fsfilcnt_t;
-#define mph_have_long_overflow(var) ((var) > LONG_MAX || (var) < LONG_MIN)
+/* Some versions of OS X don't define these typedefs, needed by map.c */
+#ifndef HAVE_BLKCNT_T
+typedef mph_blkcnt_t blkcnt_t;
+#endif
+
+#ifndef HAVE_BLKSIZE_T
+typedef mph_blksize_t blksize_t;
+#endif
+
+#ifndef HAVE_SUSECONDS_T
+typedef gint64 suseconds_t;
+#endif
+
+#ifdef HAVE_LARGE_FILE_SUPPORT
+#define MPH_OFF_T_MAX G_MAXINT64
+#define MPH_OFF_T_MIN G_MININT64
+#else
+#define MPH_OFF_T_MAX G_MAXINT32
+#define MPH_OFF_T_MIN G_MININT32
+#endif
+
+#ifdef SIZE_MAX
+#define MPH_SIZE_T_MAX SIZE_MAX
+#elif SIZEOF_SIZE_T == 8
+#define MPH_SIZE_T_MAX G_MAXUINT64
+#elif SIZEOF_SIZE_T == 4
+#define MPH_SIZE_T_MAX G_MAXUINT32
+#else
+#error "sizeof(size_t) is unknown!"
+#endif
-#define mph_return_val_if_long_overflow(var, ret) G_STMT_START{ \
- if (mph_have_long_overflow(var)) { \
+#define _mph_return_val_if_cb_(val, ret, cb) G_STMT_START{ \
+ if (cb (val)) { \
errno = EOVERFLOW; \
return ret; \
}}G_STMT_END
+#define mph_have_long_overflow(var) ((var) > LONG_MAX || (var) < LONG_MIN)
+
+#define mph_return_val_if_long_overflow(var, ret) \
+ _mph_return_val_if_cb_(var, ret, mph_have_long_overflow)
+
#define mph_return_if_long_overflow(var) mph_return_val_if_long_overflow(var, -1)
#define mph_have_ulong_overflow(var) ((var) > ULONG_MAX)
-#define mph_return_val_if_ulong_overflow(var, ret) G_STMT_START{ \
- if (mph_have_ulong_overflow(var)) { \
- errno = EOVERFLOW; \
- return ret; \
- }}G_STMT_END
+
+#define mph_return_val_if_ulong_overflow(var, ret) \
+ _mph_return_val_if_cb_(var, ret, mph_have_ulong_overflow)
#define mph_return_if_ulong_overflow(var) mph_return_val_if_ulong_overflow(var, -1)
-#ifdef SIZE_MAX
-#define mph_have_size_t_overflow(var) ((var) > SIZE_MAX)
-#define mph_return_val_if_size_t_overflow(var, ret) G_STMT_START{ \
- if (mph_have_size_t_overflow(var)) { \
- errno = EOVERFLOW; \
- return ret; \
- }}G_STMT_END
+#define mph_have_size_t_overflow(var) ((var) > MPH_SIZE_T_MAX)
+
+#define mph_return_val_if_size_t_overflow(var, ret) \
+ _mph_return_val_if_cb_(var, ret, mph_have_size_t_overflow)
+
+#define mph_return_val_if_ssize_t_overflow(var, ret) \
+ _mph_return_val_if_cb_(var, ret, mph_have_long_overflow)
+
#define mph_return_if_size_t_overflow(var) mph_return_val_if_size_t_overflow(var, -1)
-#else
-#define mph_have_size_t_overflow(var) mph_have_ulong_overflow(var)
-#define mph_return_if_size_t_overflow(var) mph_return_if_ulong_overflow(var)
-#define mph_return_val_if_size_t_overflow(var, ret) mph_return_if_ulong_overflow(var, ret)
-#endif
-#define mph_return_if_off_t_overflow(var) mph_return_if_long_overflow(var)
-#define mph_return_if_ssize_t_overflow(var) mph_return_if_long_overflow(var)
+#define mph_return_if_ssize_t_overflow(var) mph_return_val_if_ssize_t_overflow(var, -1)
+
+#define mph_have_off_t_overflow(var) \
+ (((var) < MPH_OFF_T_MIN) || ((var) > MPH_OFF_T_MAX))
+
+#define mph_return_val_if_off_t_overflow(var, ret) \
+ _mph_return_val_if_cb_(var, ret, mph_have_off_t_overflow)
+
+#define mph_return_if_off_t_overflow(var) mph_return_val_if_size_t_overflow(var, -1)
+
#define mph_return_if_time_t_overflow(var) mph_return_if_long_overflow(var)
+#define mph_return_if_val_in_list5(var,a,b,c,d,e) \
+ do { \
+ int v = (var); \
+ if (v == a || v == b || v == c || v == d || v == e) \
+ return -1; \
+ } while (0)
+
+/*
+ * Helper function for functions which use ERANGE (such as getpwnam_r and
+ * getgrnam_r). These functions accept buffers which are dynamically
+ * allocated so that they're only as large as necessary. However, Linux and
+ * Mac OS X differ on how to signal an error value.
+ *
+ * Linux returns the error value directly, while Mac OS X is more traditional,
+ * returning -1 and setting errno accordingly.
+ *
+ * Unify the checking in one place.
+ */
+static inline int
+recheck_range (int ret)
+{
+ if (ret == ERANGE)
+ return 1;
+ if (ret == -1)
+ return errno == ERANGE;
+ return 0;
+}
+
+typedef unsigned int mph_string_offset_t;
+
+enum {
+ MPH_STRING_OFFSET_PTR = 0x0,
+ MPH_STRING_OFFSET_ARRAY = 0x1,
+ MPH_STRING_OFFSET_MASK = 0x1
+};
+
+#define MPH_STRING_OFFSET(type,member,kind) ((offsetof(type,member) << 1) | kind)
+
+MPH_INTERNAL char*
+_mph_copy_structure_strings (
+ void *to, const mph_string_offset_t *to_offsets,
+ const void *from, const mph_string_offset_t *from_offsets,
+ size_t num_strings);
+
#endif /* ndef INC_mph_H */
/*
projects / mono.git / blobdiff