/* * wrapper functions. * * Authors: * Jonathan Pryor (jonpryor@vt.edu) * * Copyright (C) 2004 Jonathan Pryor */ #include #include #include "mph.h" #include "map.h" #ifdef HAVE_SYS_STATVFS_H #include #endif /* def HAVE_SYS_STATVFS_H */ #ifdef HAVE_GETFSSTAT #include #include #include #include /* for pathconf */ #endif /* def HAVE_GETFSSTAT */ G_BEGIN_DECLS struct Mono_Posix_Statvfs { guint64 f_bsize; /* file system block size */ guint64 f_frsize; /* fragment size */ mph_fsblkcnt_t f_blocks; /* size of fs in f_frsize units */ mph_fsblkcnt_t f_bfree; /* # free blocks */ mph_fsblkcnt_t f_bavail; /* # free blocks for non-root */ mph_fsfilcnt_t f_files; /* # inodes */ mph_fsfilcnt_t f_ffree; /* # free inodes */ mph_fsfilcnt_t f_favail; /* # free inodes for non-root */ guint64 f_fsid; /* file system id */ guint64 f_flag; /* mount flags */ guint64 f_namemax; /* maximum filename length */ }; #ifdef HAVE_SYS_STATVFS_H static void copy_statvfs (struct Mono_Posix_Statvfs *to, struct statvfs *from) { to->f_bsize = from->f_bsize; to->f_frsize = from->f_frsize; to->f_blocks = from->f_blocks; to->f_bfree = from->f_bfree; to->f_bavail = from->f_bavail; to->f_files = from->f_files; to->f_ffree = from->f_ffree; to->f_favail = from->f_favail; to->f_fsid = from->f_fsid; Mono_Posix_ToMountFlags (from->f_flag, &to->f_flag); to->f_namemax = from->f_namemax; } #endif /* ndef HAVE_SYS_STATVFS_H */ /* * System V-compatible definitions */ #ifdef HAVE_STATVFS gint32 Mono_Posix_Syscall_statvfs (const char *path, struct Mono_Posix_Statvfs *buf) { struct statvfs s; int r; if (buf == NULL) { errno = EFAULT; return -1; } if ((r = statvfs (path, &s)) == 0) copy_statvfs (buf, &s); return r; } #endif /* ndef HAVA_STATVFS */ #ifdef HAVE_FSTATVFS gint32 Mono_Posix_Syscall_fstatvfs (gint32 fd, struct Mono_Posix_Statvfs *buf) { struct statvfs s; int r; if (buf == NULL) { errno = EFAULT; return -1; } if ((r = fstatvfs (fd, &s)) == 0) copy_statvfs (buf, &s); return r; } #endif /* ndef HAVA_FSTATVFS */ /* * BSD-compatible definitions. * * Linux also provides these, but are deprecated in favor of (f)statvfs. */ #if (defined (HAVE_STATFS) || defined (HAVE_FSTATFS)) && !defined (HAVE_STATVFS) static void copy_statfs (struct Mono_Posix_Statvfs *to, struct statfs *from) { to->f_bsize = from->f_bsize; to->f_frsize = from->f_bsize; to->f_blocks = from->f_blocks; to->f_bfree = from->f_bfree; to->f_bavail = from->f_bavail; to->f_files = from->f_files; to->f_ffree = from->f_ffree; to->f_favail = from->f_ffree; /* OSX doesn't have f_avail */ Mono_Posix_ToMountFlags (from->f_flags, &to->f_flag); // from->f_fsid is an int32[2], to->f_fsid is a uint64, // so this shouldn't lose anything. memcpy (&to->f_fsid, &from->f_fsid, sizeof(to->f_fsid)); } static void set_namemax (const char *path, struct Mono_Posix_Statvfs *buf) { buf->f_namemax = pathconf (path, _PC_NAME_MAX); } static void set_fnamemax (int fd, struct Mono_Posix_Statvfs *buf) { buf->f_namemax = fpathconf (fd, _PC_NAME_MAX); } #endif /* (def HAVE_STATFS || def HAVE_FSTATFS) && !def HAVE_STATVFS */ #if !defined (HAVE_STATVFS) && defined (HAVE_STATFS) gint32 Mono_Posix_Syscall_statvfs (const char *path, struct Mono_Posix_Statvfs *buf) { struct statfs s; int r; if (buf == NULL) { errno = EFAULT; return -1; } if ((r = statfs (path, &s)) == 0) { copy_statfs (buf, &s); set_namemax (path, buf); } return r; } #endif /* !def HAVE_STATVFS && def HAVE_STATFS */ #if !defined (HAVE_STATVFS) && defined (HAVE_STATFS) gint32 Mono_Posix_Syscall_fstatvfs (gint32 fd, struct Mono_Posix_Statvfs *buf) { struct statfs s; int r; if (buf == NULL) { errno = EFAULT; return -1; } if ((r = fstatfs (fd, &s)) == 0) { copy_statfs (buf, &s); set_fnamemax (fd, buf); } return r; } #endif /* !def HAVE_FSTATVFS && def HAVE_STATFS */ G_END_DECLS /* * vim: noexpandtab */