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https://codeberg.org/ziglang/zig.git
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IoUring: implement outstanding flags and enumerations
Add SYNC_FILE_RANGE_* flags add XATTR_* flags Add Madvise for MADV_* constants Add Fadvise enum type for POSIX_FADV_* constants Signed-off-by: Bernard Assan <mega.alpha100@gmail.com>
This commit is contained in:
Bernard Assan
parent
f17c49390d
commit
f6be2c37c6
2 changed files with 172 additions and 62 deletions
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@ -499,6 +499,7 @@ pub const O = switch (native_arch) {
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pub const Pipe2 = switch (native_arch) {
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.x86_64, .x86, .riscv32, .riscv64, .loongarch64, .hexagon, .or1k, .s390x => packed struct(u32) {
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_: u7 = 0,
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/// Parameter to `pipe2` selecting notification pipe
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notification_pipe: bool = false,
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_9: u3 = 0,
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nonblock: bool = false,
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@ -510,6 +511,7 @@ pub const Pipe2 = switch (native_arch) {
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},
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.aarch64, .aarch64_be, .arm, .armeb, .thumb, .thumbeb, .m68k => packed struct(u32) {
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_: u7 = 0,
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/// Parameter to `pipe2` selecting notification pipe
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notification_pipe: bool = false,
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_9: u3 = 0,
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nonblock: bool = false,
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@ -521,6 +523,7 @@ pub const Pipe2 = switch (native_arch) {
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},
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.sparc64 => packed struct(u32) {
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_: u11 = 0,
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/// Parameter to `pipe2` selecting notification pipe
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notification_pipe: bool = false,
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_13: u2 = 0,
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nonblock: bool = false,
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@ -534,6 +537,7 @@ pub const Pipe2 = switch (native_arch) {
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_: u7 = 0,
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nonblock: bool = false,
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_9: u2 = 0,
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/// Parameter to `pipe2` selecting notification pipe
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notification_pipe: bool = false,
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_12: u4 = 0,
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direct: bool = false,
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@ -543,6 +547,7 @@ pub const Pipe2 = switch (native_arch) {
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},
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.powerpc, .powerpcle, .powerpc64, .powerpc64le => packed struct(u32) {
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_: u7 = 0,
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/// Parameter to `pipe2` selecting notification pipe
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notification_pipe: bool = false,
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_9: u3 = 0,
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nonblock: bool = false,
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@ -882,7 +887,6 @@ pub fn futex2_wake(
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/// Identical to `FUTEX.CMP_REQUEUE`, except it is part of the futex2 family of calls.
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///
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/// Requires at least kernel v6.7.
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// TODO: test to ensure I didn't break it
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pub fn futex2_requeue(
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/// The source and destination futexes. Must be a 2-element array.
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waiters: *const [2]Futex2.WaitOne,
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@ -4182,9 +4186,19 @@ pub const Shut = enum(u32) {
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pub const RDWR: u32 = @intFromEnum(Shut.rdwr);
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};
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/// SYNC_FILE_RANGE_* flags
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/// flags for `sync_file_range(2)` syscall
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/// matches SYNC_FILE_RANGE_* in kernel
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pub const SyncFileRange = packed struct(u32) {
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_: u32 = 0, // TODO: fill out
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wait_before: bool = false,
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write: bool = false,
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wait_after: bool = false,
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_: u29 = 0,
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pub const write_and_wait: SyncFileRange = .{
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.wait_before = true,
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.write = true,
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.wait_after = true,
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};
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};
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/// Deprecated alias to Sock
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@ -7005,9 +7019,18 @@ pub const Rename = packed struct(u32) {
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_: u29 = 0,
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};
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/// By default (i.e, flags is .{}), the extended attribute will be created
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/// if it does not exist, or the value will be replaced if the attribute
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/// already exists. To modify this semantics, one of the fields in `SetXattr`
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/// can be specified in flags. Matches XATTR_* in kernel
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pub const SetXattr = packed struct(u32) {
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_: u32 = 0, // TODO: add flags
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/// set value, fail if attr already exists
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create: bool = false,
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/// set value, fail if attr does not exist
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replace: bool = false,
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_: u30 = 0,
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};
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pub const statx_timestamp = extern struct {
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sec: i64,
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nsec: u32,
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@ -8549,60 +8572,142 @@ pub const rlimit = extern struct {
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max: rlim_t,
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};
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pub const MADV = struct {
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pub const NORMAL = 0;
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pub const RANDOM = 1;
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pub const SEQUENTIAL = 2;
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pub const WILLNEED = 3;
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pub const DONTNEED = 4;
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pub const FREE = 8;
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pub const REMOVE = 9;
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pub const DONTFORK = 10;
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pub const DOFORK = 11;
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pub const MERGEABLE = 12;
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pub const UNMERGEABLE = 13;
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pub const HUGEPAGE = 14;
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pub const NOHUGEPAGE = 15;
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pub const DONTDUMP = 16;
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pub const DODUMP = 17;
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pub const WIPEONFORK = 18;
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pub const KEEPONFORK = 19;
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pub const COLD = 20;
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pub const PAGEOUT = 21;
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pub const HWPOISON = 100;
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pub const SOFT_OFFLINE = 101;
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/// DEPRECATED alias for Madvise
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pub const MADV = Madvise;
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// COMMIT: update MADV_* flags and type as enum
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/// advice flags for `madvise`
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/// matches MADV_* in kernel
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pub const Madvise = enum(u32) {
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/// no further special treatment
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normal = 0,
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/// expect random page references
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random = 1,
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/// expect sequential page references
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sequential = 2,
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/// will need these pages
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willneed = 3,
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/// don't need these pages
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dontneed = 4,
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/// free pages only if memory pressure
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free = 8,
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/// remove these pages & resources
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remove = 9,
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/// don't inherit across fork
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dontfork = 10,
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/// do inherit across fork
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dofork = 11,
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/// KSM may merge identical pages
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mergeable = 12,
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/// KSM may not merge identical pages
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unmergeable = 13,
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/// Worth backing with hugepages
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hugepage = 14,
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/// Not worth backing with hugepages
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nohugepage = 15,
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/// Explicity exclude from the core dump, overrides the coredump filter bits
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dontdump = 16,
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/// Clear the MADV_DONTDUMP flag
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dodump = 17,
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/// Zero memory on fork, child only
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wipeonfork = 18,
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/// Undo MADV_WIPEONFORK
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keeponfork = 19,
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/// deactivate these pages
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cold = 20,
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/// reclaim these pages
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pageout = 21,
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/// populate (prefault) page tables readable
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populate_read = 22,
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/// populate (prefault) page tables writable
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populate_write = 23,
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/// like DONTNEED, but drop locked pages too
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dontneed_locked = 24,
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/// Synchronous hugepage collapse
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collapse = 25,
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/// poison a page for testing
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hwpoison = 100,
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/// soft offline page for testing
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soft_offline = 101,
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/// fatal signal on access to range
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guard_install = 102,
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/// unguard range
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guard_remove = 103,
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_,
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// DEPRECATED aliases for `Madvise`
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pub const NORMAL: u32 = @intFromEnum(Madvise.normal);
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pub const RANDOM: u32 = @intFromEnum(Madvise.random);
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pub const SEQUENTIAL: u32 = @intFromEnum(Madvise.sequential);
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pub const WILLNEED: u32 = @intFromEnum(Madvise.willneed);
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pub const DONTNEED: u32 = @intFromEnum(Madvise.dontneed);
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pub const FREE: u32 = @intFromEnum(Madvise.free);
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pub const REMOVE: u32 = @intFromEnum(Madvise.remove);
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pub const DONTFORK: u32 = @intFromEnum(Madvise.dontfork);
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pub const DOFORK: u32 = @intFromEnum(Madvise.dofork);
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pub const MERGEABLE: u32 = @intFromEnum(Madvise.mergeable);
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pub const UNMERGEABLE: u32 = @intFromEnum(Madvise.unmergeable);
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pub const HUGEPAGE: u32 = @intFromEnum(Madvise.hugepage);
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pub const NOHUGEPAGE: u32 = @intFromEnum(Madvise.nohugepage);
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pub const DONTDUMP: u32 = @intFromEnum(Madvise.dontdump);
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pub const DODUMP: u32 = @intFromEnum(Madvise.dodump);
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pub const WIPEONFORK: u32 = @intFromEnum(Madvise.wipeonfork);
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pub const KEEPONFORK: u32 = @intFromEnum(Madvise.keeponfork);
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pub const COLD: u32 = @intFromEnum(Madvise.cold);
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pub const PAGEOUT: u32 = @intFromEnum(Madvise.pageout);
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pub const HWPOISON: u32 = @intFromEnum(Madvise.hwpoison);
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pub const SOFT_OFFLINE: u32 = @intFromEnum(Madvise.soft_offline);
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};
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pub const Madvice = enum(u32) {
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_, // TODO: add options
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};
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pub const Fadvice = enum(u32) {
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_, // TODO: add options
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};
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/// DEPRECATED alias to Fadvice
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pub const POSIX_FADV = Fadvise;
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pub const POSIX_FADV = switch (native_arch) {
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.s390x => if (@typeInfo(usize).int.bits == 64) struct {
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pub const NORMAL = 0;
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pub const RANDOM = 1;
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pub const SEQUENTIAL = 2;
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pub const WILLNEED = 3;
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pub const DONTNEED = 6;
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pub const NOREUSE = 7;
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} else struct {
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pub const NORMAL = 0;
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pub const RANDOM = 1;
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pub const SEQUENTIAL = 2;
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pub const WILLNEED = 3;
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pub const DONTNEED = 4;
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pub const NOREUSE = 5;
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/// advice flags for `posix_fadvise`
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/// matches POSIX_FADV_* in kernel
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pub const Fadvise = switch (native_arch) {
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.s390x => if (@typeInfo(usize).int.bits == 64) enum(u32) {
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/// No further special treatment
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normal = 0,
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/// Expect random page references
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random = 1,
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/// Expect sequential page references
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sequential = 2,
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/// Will need these pages
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willneed = 3,
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/// Don't need these pages
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dontneed = 6,
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/// Data will be accessed once
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noreuse = 7,
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_,
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pub const NORMAL: u32 = @intFromEnum(Fadvise.normal);
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pub const RANDOM: u32 = @intFromEnum(Fadvise.random);
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pub const SEQUENTIAL: u32 = @intFromEnum(Fadvise.sequential);
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pub const WILLNEED: u32 = @intFromEnum(Fadvise.willneed);
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pub const DONTNEED: u32 = @intFromEnum(Fadvise.dontneed);
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pub const NOREUSE: u32 = @intFromEnum(Fadvise.noreuse);
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},
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else => struct {
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pub const NORMAL = 0;
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pub const RANDOM = 1;
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pub const SEQUENTIAL = 2;
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pub const WILLNEED = 3;
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pub const DONTNEED = 4;
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pub const NOREUSE = 5;
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else => enum(u32) {
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/// No further special treatment
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normal = 0,
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/// Expect random page references
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random = 1,
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/// Expect sequential page references
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sequential = 2,
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/// Will need these pages
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willneed = 3,
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/// Don't need these pages
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dontneed = 4,
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/// Data will be accessed once
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noreuse = 5,
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_,
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pub const NORMAL: u32 = @intFromEnum(Fadvise.normal);
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pub const RANDOM: u32 = @intFromEnum(Fadvise.random);
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pub const SEQUENTIAL: u32 = @intFromEnum(Fadvise.sequential);
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pub const WILLNEED: u32 = @intFromEnum(Fadvise.willneed);
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pub const DONTNEED: u32 = @intFromEnum(Fadvise.dontneed);
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pub const NOREUSE: u32 = @intFromEnum(Fadvise.noreuse);
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},
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};
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@ -1137,7 +1137,7 @@ pub fn fadvice(
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fd: linux.fd_t,
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offset: u64,
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len: u32,
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advice: linux.Fadvice,
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advice: linux.Fadvise,
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) !*Sqe {
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const sqe = try self.get_sqe();
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sqe.prep_fadvice(fd, offset, len, advice);
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@ -1151,7 +1151,7 @@ pub fn madvice(
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self: *IoUring,
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user_data: u64,
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memory: []u8,
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advice: linux.Fadvice,
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advice: linux.Madvise,
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) !*Sqe {
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const sqe = try self.get_sqe();
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sqe.prep_madvice(memory, advice);
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@ -1351,7 +1351,13 @@ pub fn provide_buffers(
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buffer_id: usize,
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) !*Sqe {
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const sqe = try self.get_sqe();
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sqe.prep_provide_buffers(buffers, buffer_size, buffers_count, group_id, buffer_id);
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sqe.prep_provide_buffers(
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buffers,
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buffer_size,
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buffers_count,
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group_id,
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buffer_id,
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);
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sqe.user_data = user_data;
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return sqe;
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}
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@ -1449,7 +1455,7 @@ pub fn sync_file_range(
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fd: linux.fd_t,
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len: u32,
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offset: u64,
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flags: linux.SyncFileRange, // TODO: add flags
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flags: linux.SyncFileRange,
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) !*Sqe {
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const sqe = try self.get_sqe();
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sqe.prep_sync_file_range(fd, len, offset, flags);
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@ -2220,7 +2226,6 @@ pub fn getsockopt(
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);
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}
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// TODO: move buf_ring fns into BufferRing type
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/// Registers a shared buffer ring to be used with provided buffers. `entries`
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/// number of `io_uring_buf` structures is mem mapped and shared by kernel.
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///
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@ -2967,7 +2972,7 @@ pub const Sqe = extern struct {
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fd: linux.fd_t,
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offset: u64,
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len: u32,
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advice: linux.Fadvice,
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advice: linux.Fadvise,
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) void {
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sqe.prep_rw(.fadvise, fd, undefined, len, offset);
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sqe.rw_flags = @intFromEnum(advice);
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@ -2976,7 +2981,7 @@ pub const Sqe = extern struct {
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pub fn prep_madvice(
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sqe: *Sqe,
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memory: []u8,
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advice: linux.Madvice,
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advice: linux.Madvise,
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) void {
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sqe.prep_rw(.madvise, -1, @intFromPtr(memory.ptr), memory.len, 0);
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sqe.rw_flags = @intFromEnum(advice);
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@ -3047,7 +3052,7 @@ pub const Sqe = extern struct {
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fd: linux.fd_t,
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len: u32,
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offset: u64,
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flags: linux.SyncFileRange, // TODO: add flags
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flags: linux.SyncFileRange,
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) void {
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sqe.prep_rw(.sync_file_range, fd, undefined, len, offset);
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sqe.rw_flags = @bitCast(flags);
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