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improve docs and field names of Statx struct

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Andrew Kelley 2019-10-16 17:24:42 -04:00
parent 312880f102
commit 5181970807
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2 changed files with 60 additions and 47 deletions
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95
lib/std/os/bits/linux.zig
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@ -1322,52 +1322,65 @@ pub const statx_timestamp = extern struct {
__pad1: u32,
};
/// Renamed to `Statx` to not conflict with the `statx` function.
pub const Statx = extern struct {
// Mask of bits indicating filled fields
stx_mask: u32,
// Block size for filesystem I/O
stx_blksize: u32,
// Extra file attribute indicators
stx_attributes: u64,
// Number of hard links
stx_nlink: u32,
// User ID of owner
stx_uid: u32,
// Group ID of owner
stx_gid: u32,
// File type and mode
stx_mode: u16,
/// Mask of bits indicating filled fields
mask: u32,
/// Block size for filesystem I/O
blksize: u32,
/// Extra file attribute indicators
attributes: u64,
/// Number of hard links
nlink: u32,
/// User ID of owner
uid: u32,
/// Group ID of owner
gid: u32,
/// File type and mode
mode: u16,
__pad1: u16,
// Inode number
stx_ino: u64,
// Total size in bytes
stx_size: u64,
// Number of 512B blocks allocated
stx_blocks: u64,
// Mask to show what's supported in stx_attributes
stx_attributes_mask: u64,
// The following fields are file timestamps
// Last access
stx_atime: statx_timestamp,
// Creation
stx_btime: statx_timestamp,
// Last status change
stx_ctime: statx_timestamp,
// Last modification
stx_mtime: statx_timestamp,
/// Inode number
ino: u64,
// If this file represents a device, then the next two fields contain the ID of the device
// Major ID
stx_rdev_major: u32,
// Minor ID
stx_rdev_minor: u32,
/// Total size in bytes
size: u64,
// The next two fields contain the ID of the device containing the filesystem where the file resides
// Major ID
stx_dev_major: u32,
// Minor ID
stx_dev_minor: u32,
/// Number of 512B blocks allocated
blocks: u64,
/// Mask to show what's supported in `attributes`.
attributes_mask: u64,
/// Last access file timestamp
atime: statx_timestamp,
/// Creation file timestamp
btime: statx_timestamp,
/// Last status change file timestamp
ctime: statx_timestamp,
/// Last modification file timestamp
mtime: statx_timestamp,
/// Major ID, if this file represents a device.
rdev_major: u32,
/// Minor ID, if this file represents a device.
rdev_minor: u32,
/// Major ID of the device containing the filesystem where this file resides.
dev_major: u32,
/// Minor ID of the device containing the filesystem where this file resides.
dev_minor: u32,
__pad2: [14]u64,
};

12
lib/std/os/linux/test.zig
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@ -69,10 +69,10 @@ test "statx" {
else => unreachable,
}
expect(stat_buf.mode == statx_buf.stx_mode);
expect(@bitCast(u32, stat_buf.uid) == statx_buf.stx_uid);
expect(@bitCast(u32, stat_buf.gid) == statx_buf.stx_gid);
expect(@bitCast(u64, i64(stat_buf.size)) == statx_buf.stx_size);
expect(@bitCast(u64, i64(stat_buf.blksize)) == statx_buf.stx_blksize);
expect(@bitCast(u64, i64(stat_buf.blocks)) == statx_buf.stx_blocks);
expect(stat_buf.mode == statx_buf.mode);
expect(@bitCast(u32, stat_buf.uid) == statx_buf.uid);
expect(@bitCast(u32, stat_buf.gid) == statx_buf.gid);
expect(@bitCast(u64, i64(stat_buf.size)) == statx_buf.size);
expect(@bitCast(u64, i64(stat_buf.blksize)) == statx_buf.blksize);
expect(@bitCast(u64, i64(stat_buf.blocks)) == statx_buf.blocks);
}