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extract std.posix from std.os

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closes #5019
This commit is contained in:
Andrew Kelley
2024-03-18 22:39:59 -07:00
parent 7057bffc14
commit cd62005f19
94 changed files with 10240 additions and 10305 deletions
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623
lib/std/os/linux.zig
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@@ -18,9 +18,9 @@ const is_mips = native_arch.isMIPS();
const is_ppc = native_arch.isPPC();
const is_ppc64 = native_arch.isPPC64();
const is_sparc = native_arch.isSPARC();
const iovec = std.os.iovec;
const iovec_const = std.os.iovec_const;
const ACCMODE = std.os.ACCMODE;
const iovec = std.posix.iovec;
const iovec_const = std.posix.iovec_const;
const ACCMODE = std.posix.ACCMODE;
test {
if (builtin.os.tag == .linux) {
@@ -451,10 +451,11 @@ fn splitValue64(val: i64) [2]u32 {
}
/// Get the errno from a syscall return value, or 0 for no error.
pub fn getErrno(r: usize) E {
const signed_r = @as(isize, @bitCast(r));
/// The public API is exposed via the `E` namespace.
fn errnoFromSyscall(r: usize) E {
const signed_r: isize = @bitCast(r);
const int = if (signed_r > -4096 and signed_r < 0) -signed_r else 0;
return @as(E, @enumFromInt(int));
return @enumFromInt(int);
}
pub fn dup(old: i32) usize {
@@ -1561,7 +1562,7 @@ pub fn sigaction(sig: u6, noalias act: ?*const Sigaction, noalias oact: ?*Sigact
.sparc, .sparc64 => syscall5(.rt_sigaction, sig, ksa_arg, oldksa_arg, @intFromPtr(ksa.restorer), mask_size),
else => syscall4(.rt_sigaction, sig, ksa_arg, oldksa_arg, mask_size),
};
if (getErrno(result) != .SUCCESS) return result;
if (E.init(result) != .SUCCESS) return result;
if (oact) |old| {
old.handler.handler = oldksa.handler;
@@ -1648,12 +1649,12 @@ pub fn sendmmsg(fd: i32, msgvec: [*]mmsghdr_const, vlen: u32, flags: u32) usize
if (next_unsent < i) {
const batch_size = i - next_unsent;
const r = syscall4(.sendmmsg, @as(usize, @bitCast(@as(isize, fd))), @intFromPtr(&msgvec[next_unsent]), batch_size, flags);
if (getErrno(r) != 0) return next_unsent;
if (E.init(r) != 0) return next_unsent;
if (r < batch_size) return next_unsent + r;
}
// send current message as own packet
const r = sendmsg(fd, &msg.msg_hdr, flags);
if (getErrno(r) != 0) return r;
if (E.init(r) != 0) return r;
// Linux limits the total bytes sent by sendmsg to INT_MAX, so this cast is safe.
msg.msg_len = @as(u32, @intCast(r));
next_unsent = i + 1;
@@ -1665,7 +1666,7 @@ pub fn sendmmsg(fd: i32, msgvec: [*]mmsghdr_const, vlen: u32, flags: u32) usize
if (next_unsent < kvlen or next_unsent == 0) { // want to make sure at least one syscall occurs (e.g. to trigger MSG.EOR)
const batch_size = kvlen - next_unsent;
const r = syscall4(.sendmmsg, @as(usize, @bitCast(@as(isize, fd))), @intFromPtr(&msgvec[next_unsent]), batch_size, flags);
if (getErrno(r) != 0) return r;
if (E.init(r) != 0) return r;
return next_unsent + r;
}
return kvlen;
@@ -2263,13 +2264,609 @@ pub fn map_shadow_stack(addr: u64, size: u64, flags: u32) usize {
}
pub const E = switch (native_arch) {
.mips, .mipsel => @import("linux/errno/mips.zig").E,
.sparc, .sparcel, .sparc64 => @import("linux/errno/sparc.zig").E,
else => @import("linux/errno/generic.zig").E,
.mips, .mipsel => enum(i32) {
/// No error occurred.
SUCCESS = 0,
PERM = 1,
NOENT = 2,
SRCH = 3,
INTR = 4,
IO = 5,
NXIO = 6,
@"2BIG" = 7,
NOEXEC = 8,
BADF = 9,
CHILD = 10,
/// Also used for WOULDBLOCK.
AGAIN = 11,
NOMEM = 12,
ACCES = 13,
FAULT = 14,
NOTBLK = 15,
BUSY = 16,
EXIST = 17,
XDEV = 18,
NODEV = 19,
NOTDIR = 20,
ISDIR = 21,
INVAL = 22,
NFILE = 23,
MFILE = 24,
NOTTY = 25,
TXTBSY = 26,
FBIG = 27,
NOSPC = 28,
SPIPE = 29,
ROFS = 30,
MLINK = 31,
PIPE = 32,
DOM = 33,
RANGE = 34,
NOMSG = 35,
IDRM = 36,
CHRNG = 37,
L2NSYNC = 38,
L3HLT = 39,
L3RST = 40,
LNRNG = 41,
UNATCH = 42,
NOCSI = 43,
L2HLT = 44,
DEADLK = 45,
NOLCK = 46,
BADE = 50,
BADR = 51,
XFULL = 52,
NOANO = 53,
BADRQC = 54,
BADSLT = 55,
DEADLOCK = 56,
BFONT = 59,
NOSTR = 60,
NODATA = 61,
TIME = 62,
NOSR = 63,
NONET = 64,
NOPKG = 65,
REMOTE = 66,
NOLINK = 67,
ADV = 68,
SRMNT = 69,
COMM = 70,
PROTO = 71,
DOTDOT = 73,
MULTIHOP = 74,
BADMSG = 77,
NAMETOOLONG = 78,
OVERFLOW = 79,
NOTUNIQ = 80,
BADFD = 81,
REMCHG = 82,
LIBACC = 83,
LIBBAD = 84,
LIBSCN = 85,
LIBMAX = 86,
LIBEXEC = 87,
ILSEQ = 88,
NOSYS = 89,
LOOP = 90,
RESTART = 91,
STRPIPE = 92,
NOTEMPTY = 93,
USERS = 94,
NOTSOCK = 95,
DESTADDRREQ = 96,
MSGSIZE = 97,
PROTOTYPE = 98,
NOPROTOOPT = 99,
PROTONOSUPPORT = 120,
SOCKTNOSUPPORT = 121,
OPNOTSUPP = 122,
PFNOSUPPORT = 123,
AFNOSUPPORT = 124,
ADDRINUSE = 125,
ADDRNOTAVAIL = 126,
NETDOWN = 127,
NETUNREACH = 128,
NETRESET = 129,
CONNABORTED = 130,
CONNRESET = 131,
NOBUFS = 132,
ISCONN = 133,
NOTCONN = 134,
UCLEAN = 135,
NOTNAM = 137,
NAVAIL = 138,
ISNAM = 139,
REMOTEIO = 140,
SHUTDOWN = 143,
TOOMANYREFS = 144,
TIMEDOUT = 145,
CONNREFUSED = 146,
HOSTDOWN = 147,
HOSTUNREACH = 148,
ALREADY = 149,
INPROGRESS = 150,
STALE = 151,
CANCELED = 158,
NOMEDIUM = 159,
MEDIUMTYPE = 160,
NOKEY = 161,
KEYEXPIRED = 162,
KEYREVOKED = 163,
KEYREJECTED = 164,
OWNERDEAD = 165,
NOTRECOVERABLE = 166,
RFKILL = 167,
HWPOISON = 168,
DQUOT = 1133,
_,
pub const init = errnoFromSyscall;
},
.sparc, .sparcel, .sparc64 => enum(i32) {
/// No error occurred.
SUCCESS = 0,
PERM = 1,
NOENT = 2,
SRCH = 3,
INTR = 4,
IO = 5,
NXIO = 6,
@"2BIG" = 7,
NOEXEC = 8,
BADF = 9,
CHILD = 10,
/// Also used for WOULDBLOCK
AGAIN = 11,
NOMEM = 12,
ACCES = 13,
FAULT = 14,
NOTBLK = 15,
BUSY = 16,
EXIST = 17,
XDEV = 18,
NODEV = 19,
NOTDIR = 20,
ISDIR = 21,
INVAL = 22,
NFILE = 23,
MFILE = 24,
NOTTY = 25,
TXTBSY = 26,
FBIG = 27,
NOSPC = 28,
SPIPE = 29,
ROFS = 30,
MLINK = 31,
PIPE = 32,
DOM = 33,
RANGE = 34,
INPROGRESS = 36,
ALREADY = 37,
NOTSOCK = 38,
DESTADDRREQ = 39,
MSGSIZE = 40,
PROTOTYPE = 41,
NOPROTOOPT = 42,
PROTONOSUPPORT = 43,
SOCKTNOSUPPORT = 44,
/// Also used for NOTSUP
OPNOTSUPP = 45,
PFNOSUPPORT = 46,
AFNOSUPPORT = 47,
ADDRINUSE = 48,
ADDRNOTAVAIL = 49,
NETDOWN = 50,
NETUNREACH = 51,
NETRESET = 52,
CONNABORTED = 53,
CONNRESET = 54,
NOBUFS = 55,
ISCONN = 56,
NOTCONN = 57,
SHUTDOWN = 58,
TOOMANYREFS = 59,
TIMEDOUT = 60,
CONNREFUSED = 61,
LOOP = 62,
NAMETOOLONG = 63,
HOSTDOWN = 64,
HOSTUNREACH = 65,
NOTEMPTY = 66,
PROCLIM = 67,
USERS = 68,
DQUOT = 69,
STALE = 70,
REMOTE = 71,
NOSTR = 72,
TIME = 73,
NOSR = 74,
NOMSG = 75,
BADMSG = 76,
IDRM = 77,
DEADLK = 78,
NOLCK = 79,
NONET = 80,
RREMOTE = 81,
NOLINK = 82,
ADV = 83,
SRMNT = 84,
COMM = 85,
PROTO = 86,
MULTIHOP = 87,
DOTDOT = 88,
REMCHG = 89,
NOSYS = 90,
STRPIPE = 91,
OVERFLOW = 92,
BADFD = 93,
CHRNG = 94,
L2NSYNC = 95,
L3HLT = 96,
L3RST = 97,
LNRNG = 98,
UNATCH = 99,
NOCSI = 100,
L2HLT = 101,
BADE = 102,
BADR = 103,
XFULL = 104,
NOANO = 105,
BADRQC = 106,
BADSLT = 107,
DEADLOCK = 108,
BFONT = 109,
LIBEXEC = 110,
NODATA = 111,
LIBBAD = 112,
NOPKG = 113,
LIBACC = 114,
NOTUNIQ = 115,
RESTART = 116,
UCLEAN = 117,
NOTNAM = 118,
NAVAIL = 119,
ISNAM = 120,
REMOTEIO = 121,
ILSEQ = 122,
LIBMAX = 123,
LIBSCN = 124,
NOMEDIUM = 125,
MEDIUMTYPE = 126,
CANCELED = 127,
NOKEY = 128,
KEYEXPIRED = 129,
KEYREVOKED = 130,
KEYREJECTED = 131,
OWNERDEAD = 132,
NOTRECOVERABLE = 133,
RFKILL = 134,
HWPOISON = 135,
_,
pub const init = errnoFromSyscall;
},
else => enum(u16) {
/// No error occurred.
/// Same code used for `NSROK`.
SUCCESS = 0,
/// Operation not permitted
PERM = 1,
/// No such file or directory
NOENT = 2,
/// No such process
SRCH = 3,
/// Interrupted system call
INTR = 4,
/// I/O error
IO = 5,
/// No such device or address
NXIO = 6,
/// Arg list too long
@"2BIG" = 7,
/// Exec format error
NOEXEC = 8,
/// Bad file number
BADF = 9,
/// No child processes
CHILD = 10,
/// Try again
/// Also means: WOULDBLOCK: operation would block
AGAIN = 11,
/// Out of memory
NOMEM = 12,
/// Permission denied
ACCES = 13,
/// Bad address
FAULT = 14,
/// Block device required
NOTBLK = 15,
/// Device or resource busy
BUSY = 16,
/// File exists
EXIST = 17,
/// Cross-device link
XDEV = 18,
/// No such device
NODEV = 19,
/// Not a directory
NOTDIR = 20,
/// Is a directory
ISDIR = 21,
/// Invalid argument
INVAL = 22,
/// File table overflow
NFILE = 23,
/// Too many open files
MFILE = 24,
/// Not a typewriter
NOTTY = 25,
/// Text file busy
TXTBSY = 26,
/// File too large
FBIG = 27,
/// No space left on device
NOSPC = 28,
/// Illegal seek
SPIPE = 29,
/// Read-only file system
ROFS = 30,
/// Too many links
MLINK = 31,
/// Broken pipe
PIPE = 32,
/// Math argument out of domain of func
DOM = 33,
/// Math result not representable
RANGE = 34,
/// Resource deadlock would occur
DEADLK = 35,
/// File name too long
NAMETOOLONG = 36,
/// No record locks available
NOLCK = 37,
/// Function not implemented
NOSYS = 38,
/// Directory not empty
NOTEMPTY = 39,
/// Too many symbolic links encountered
LOOP = 40,
/// No message of desired type
NOMSG = 42,
/// Identifier removed
IDRM = 43,
/// Channel number out of range
CHRNG = 44,
/// Level 2 not synchronized
L2NSYNC = 45,
/// Level 3 halted
L3HLT = 46,
/// Level 3 reset
L3RST = 47,
/// Link number out of range
LNRNG = 48,
/// Protocol driver not attached
UNATCH = 49,
/// No CSI structure available
NOCSI = 50,
/// Level 2 halted
L2HLT = 51,
/// Invalid exchange
BADE = 52,
/// Invalid request descriptor
BADR = 53,
/// Exchange full
XFULL = 54,
/// No anode
NOANO = 55,
/// Invalid request code
BADRQC = 56,
/// Invalid slot
BADSLT = 57,
/// Bad font file format
BFONT = 59,
/// Device not a stream
NOSTR = 60,
/// No data available
NODATA = 61,
/// Timer expired
TIME = 62,
/// Out of streams resources
NOSR = 63,
/// Machine is not on the network
NONET = 64,
/// Package not installed
NOPKG = 65,
/// Object is remote
REMOTE = 66,
/// Link has been severed
NOLINK = 67,
/// Advertise error
ADV = 68,
/// Srmount error
SRMNT = 69,
/// Communication error on send
COMM = 70,
/// Protocol error
PROTO = 71,
/// Multihop attempted
MULTIHOP = 72,
/// RFS specific error
DOTDOT = 73,
/// Not a data message
BADMSG = 74,
/// Value too large for defined data type
OVERFLOW = 75,
/// Name not unique on network
NOTUNIQ = 76,
/// File descriptor in bad state
BADFD = 77,
/// Remote address changed
REMCHG = 78,
/// Can not access a needed shared library
LIBACC = 79,
/// Accessing a corrupted shared library
LIBBAD = 80,
/// .lib section in a.out corrupted
LIBSCN = 81,
/// Attempting to link in too many shared libraries
LIBMAX = 82,
/// Cannot exec a shared library directly
LIBEXEC = 83,
/// Illegal byte sequence
ILSEQ = 84,
/// Interrupted system call should be restarted
RESTART = 85,
/// Streams pipe error
STRPIPE = 86,
/// Too many users
USERS = 87,
/// Socket operation on non-socket
NOTSOCK = 88,
/// Destination address required
DESTADDRREQ = 89,
/// Message too long
MSGSIZE = 90,
/// Protocol wrong type for socket
PROTOTYPE = 91,
/// Protocol not available
NOPROTOOPT = 92,
/// Protocol not supported
PROTONOSUPPORT = 93,
/// Socket type not supported
SOCKTNOSUPPORT = 94,
/// Operation not supported on transport endpoint
/// This code also means `NOTSUP`.
OPNOTSUPP = 95,
/// Protocol family not supported
PFNOSUPPORT = 96,
/// Address family not supported by protocol
AFNOSUPPORT = 97,
/// Address already in use
ADDRINUSE = 98,
/// Cannot assign requested address
ADDRNOTAVAIL = 99,
/// Network is down
NETDOWN = 100,
/// Network is unreachable
NETUNREACH = 101,
/// Network dropped connection because of reset
NETRESET = 102,
/// Software caused connection abort
CONNABORTED = 103,
/// Connection reset by peer
CONNRESET = 104,
/// No buffer space available
NOBUFS = 105,
/// Transport endpoint is already connected
ISCONN = 106,
/// Transport endpoint is not connected
NOTCONN = 107,
/// Cannot send after transport endpoint shutdown
SHUTDOWN = 108,
/// Too many references: cannot splice
TOOMANYREFS = 109,
/// Connection timed out
TIMEDOUT = 110,
/// Connection refused
CONNREFUSED = 111,
/// Host is down
HOSTDOWN = 112,
/// No route to host
HOSTUNREACH = 113,
/// Operation already in progress
ALREADY = 114,
/// Operation now in progress
INPROGRESS = 115,
/// Stale NFS file handle
STALE = 116,
/// Structure needs cleaning
UCLEAN = 117,
/// Not a XENIX named type file
NOTNAM = 118,
/// No XENIX semaphores available
NAVAIL = 119,
/// Is a named type file
ISNAM = 120,
/// Remote I/O error
REMOTEIO = 121,
/// Quota exceeded
DQUOT = 122,
/// No medium found
NOMEDIUM = 123,
/// Wrong medium type
MEDIUMTYPE = 124,
/// Operation canceled
CANCELED = 125,
/// Required key not available
NOKEY = 126,
/// Key has expired
KEYEXPIRED = 127,
/// Key has been revoked
KEYREVOKED = 128,
/// Key was rejected by service
KEYREJECTED = 129,
// for robust mutexes
/// Owner died
OWNERDEAD = 130,
/// State not recoverable
NOTRECOVERABLE = 131,
/// Operation not possible due to RF-kill
RFKILL = 132,
/// Memory page has hardware error
HWPOISON = 133,
// nameserver query return codes
/// DNS server returned answer with no data
NSRNODATA = 160,
/// DNS server claims query was misformatted
NSRFORMERR = 161,
/// DNS server returned general failure
NSRSERVFAIL = 162,
/// Domain name not found
NSRNOTFOUND = 163,
/// DNS server does not implement requested operation
NSRNOTIMP = 164,
/// DNS server refused query
NSRREFUSED = 165,
/// Misformatted DNS query
NSRBADQUERY = 166,
/// Misformatted domain name
NSRBADNAME = 167,
/// Unsupported address family
NSRBADFAMILY = 168,
/// Misformatted DNS reply
NSRBADRESP = 169,
/// Could not contact DNS servers
NSRCONNREFUSED = 170,
/// Timeout while contacting DNS servers
NSRTIMEOUT = 171,
/// End of file
NSROF = 172,
/// Error reading file
NSRFILE = 173,
/// Out of memory
NSRNOMEM = 174,
/// Application terminated lookup
NSRDESTRUCTION = 175,
/// Domain name is too long
NSRQUERYDOMAINTOOLONG = 176,
/// Domain name is too long
NSRCNAMELOOP = 177,
_,
pub const init = errnoFromSyscall;
},
};
pub const pid_t = i32;
pub const fd_t = i32;
pub const socket_t = i32;
pub const uid_t = u32;
pub const gid_t = u32;
pub const clock_t = isize;