mirror of
https://github.com/ziglang/zig.git
synced 2025-12-06 14:23:09 +00:00
3487514626
The mincore syscall is available on some UNIX like operating systems and allows a user to determine if a page is resident in memory.
374 lines
12 KiB
Zig
374 lines
12 KiB
Zig
const std = @import("../std.zig");
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const builtin = @import("builtin");
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const maxInt = std.math.maxInt;
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const native_abi = builtin.abi;
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const native_arch = builtin.cpu.arch;
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const linux = std.os.linux;
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const iovec = std.os.iovec;
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const iovec_const = std.os.iovec_const;
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const FILE = std.c.FILE;
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pub const AF = linux.AF;
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pub const ARCH = linux.ARCH;
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pub const AT = linux.AT;
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pub const CLOCK = linux.CLOCK;
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pub const CPU_COUNT = linux.CPU_COUNT;
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pub const E = linux.E;
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pub const Elf_Symndx = linux.Elf_Symndx;
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pub const F = linux.F;
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pub const FD_CLOEXEC = linux.FD_CLOEXEC;
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pub const F_OK = linux.F_OK;
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pub const Flock = linux.Flock;
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pub const HOST_NAME_MAX = linux.HOST_NAME_MAX;
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pub const IFNAMESIZE = linux.IFNAMESIZE;
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pub const IOV_MAX = linux.IOV_MAX;
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pub const IPPROTO = linux.IPPROTO;
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pub const LOCK = linux.LOCK;
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pub const MADV = linux.MADV;
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pub const MAP = struct {
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pub usingnamespace linux.MAP;
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/// Only used by libc to communicate failure.
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pub const FAILED = @intToPtr(*anyopaque, maxInt(usize));
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};
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pub const MSF = linux.MSF;
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pub const MMAP2_UNIT = linux.MMAP2_UNIT;
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pub const MSG = linux.MSG;
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pub const NAME_MAX = linux.NAME_MAX;
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pub const O = linux.O;
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pub const PATH_MAX = linux.PATH_MAX;
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pub const POLL = linux.POLL;
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pub const PROT = linux.PROT;
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pub const REG = linux.REG;
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pub const RLIM = linux.RLIM;
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pub const R_OK = linux.R_OK;
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pub const S = linux.S;
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pub const SA = linux.SA;
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pub const SC = linux.SC;
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pub const SEEK = linux.SEEK;
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pub const SHUT = linux.SHUT;
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pub const SIG = linux.SIG;
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pub const SIOCGIFINDEX = linux.SIOCGIFINDEX;
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pub const SO = linux.SO;
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pub const SOCK = linux.SOCK;
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pub const SOL = linux.SOL;
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pub const STDERR_FILENO = linux.STDERR_FILENO;
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pub const STDIN_FILENO = linux.STDIN_FILENO;
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pub const STDOUT_FILENO = linux.STDOUT_FILENO;
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pub const SYS = linux.SYS;
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pub const Sigaction = linux.Sigaction;
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pub const TCP = linux.TCP;
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pub const TCSA = linux.TCSA;
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pub const VDSO = linux.VDSO;
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pub const W = linux.W;
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pub const W_OK = linux.W_OK;
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pub const X_OK = linux.X_OK;
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pub const addrinfo = linux.addrinfo;
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pub const blkcnt_t = linux.blkcnt_t;
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pub const blksize_t = linux.blksize_t;
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pub const clock_t = linux.clock_t;
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pub const cpu_set_t = linux.cpu_set_t;
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pub const dev_t = linux.dev_t;
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pub const dl_phdr_info = linux.dl_phdr_info;
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pub const empty_sigset = linux.empty_sigset;
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pub const epoll_event = linux.epoll_event;
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pub const fd_t = linux.fd_t;
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pub const gid_t = linux.gid_t;
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pub const ifreq = linux.ifreq;
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pub const ino_t = linux.ino_t;
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pub const mcontext_t = linux.mcontext_t;
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pub const mode_t = linux.mode_t;
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pub const msghdr = linux.msghdr;
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pub const msghdr_const = linux.msghdr_const;
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pub const nfds_t = linux.nfds_t;
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pub const nlink_t = linux.nlink_t;
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pub const off_t = linux.off_t;
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pub const pid_t = linux.pid_t;
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pub const pollfd = linux.pollfd;
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pub const rlim_t = linux.rlim_t;
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pub const rlimit = linux.rlimit;
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pub const rlimit_resource = linux.rlimit_resource;
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pub const rusage = linux.rusage;
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pub const siginfo_t = linux.siginfo_t;
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pub const sigset_t = linux.sigset_t;
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pub const sockaddr = linux.sockaddr;
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pub const socklen_t = linux.socklen_t;
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pub const stack_t = linux.stack_t;
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pub const tcflag_t = linux.tcflag_t;
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pub const termios = linux.termios;
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pub const time_t = linux.time_t;
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pub const timespec = linux.timespec;
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pub const timeval = linux.timeval;
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pub const timezone = linux.timezone;
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pub const ucontext_t = linux.ucontext_t;
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pub const uid_t = linux.uid_t;
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pub const user_desc = linux.user_desc;
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pub const utsname = linux.utsname;
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pub const PR = linux.PR;
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pub const _errno = switch (native_abi) {
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.android => struct {
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extern fn __errno() *c_int;
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}.__errno,
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else => struct {
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extern "c" fn __errno_location() *c_int;
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}.__errno_location,
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};
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pub const Stat = switch (native_arch) {
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.sparc64 => extern struct {
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dev: u64,
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__pad1: u16,
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ino: ino_t,
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mode: u32,
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nlink: u32,
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uid: u32,
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gid: u32,
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rdev: u64,
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__pad2: u16,
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size: off_t,
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blksize: isize,
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blocks: i64,
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atim: timespec,
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mtim: timespec,
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ctim: timespec,
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__reserved: [2]usize,
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pub fn atime(self: @This()) timespec {
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return self.atim;
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}
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pub fn mtime(self: @This()) timespec {
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return self.mtim;
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}
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pub fn ctime(self: @This()) timespec {
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return self.ctim;
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}
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},
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.mips, .mipsel => extern struct {
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dev: dev_t,
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__pad0: [2]u32,
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ino: ino_t,
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mode: mode_t,
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nlink: nlink_t,
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uid: uid_t,
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gid: gid_t,
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rdev: dev_t,
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__pad1: [2]u32,
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size: off_t,
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atim: timespec,
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mtim: timespec,
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ctim: timespec,
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blksize: blksize_t,
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__pad3: u32,
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blocks: blkcnt_t,
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__pad4: [14]u32,
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pub fn atime(self: @This()) timespec {
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return self.atim;
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}
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pub fn mtime(self: @This()) timespec {
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return self.mtim;
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}
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pub fn ctime(self: @This()) timespec {
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return self.ctim;
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}
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},
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else => std.os.linux.Stat, // libc stat is the same as kernel stat.
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};
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pub const AI = struct {
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pub const PASSIVE = 0x01;
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pub const CANONNAME = 0x02;
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pub const NUMERICHOST = 0x04;
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pub const V4MAPPED = 0x08;
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pub const ALL = 0x10;
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pub const ADDRCONFIG = 0x20;
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pub const NUMERICSERV = 0x400;
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};
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pub const NI = struct {
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pub const NUMERICHOST = 0x01;
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pub const NUMERICSERV = 0x02;
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pub const NOFQDN = 0x04;
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pub const NAMEREQD = 0x08;
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pub const DGRAM = 0x10;
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pub const NUMERICSCOPE = 0x100;
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};
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pub const EAI = enum(c_int) {
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BADFLAGS = -1,
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NONAME = -2,
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AGAIN = -3,
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FAIL = -4,
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FAMILY = -6,
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SOCKTYPE = -7,
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SERVICE = -8,
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MEMORY = -10,
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SYSTEM = -11,
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OVERFLOW = -12,
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NODATA = -5,
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ADDRFAMILY = -9,
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INPROGRESS = -100,
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CANCELED = -101,
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NOTCANCELED = -102,
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ALLDONE = -103,
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INTR = -104,
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IDN_ENCODE = -105,
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_,
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};
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pub extern "c" fn fallocate64(fd: fd_t, mode: c_int, offset: off_t, len: off_t) c_int;
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pub extern "c" fn fopen64(noalias filename: [*:0]const u8, noalias modes: [*:0]const u8) ?*FILE;
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pub extern "c" fn fstat64(fd: fd_t, buf: *Stat) c_int;
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pub extern "c" fn fstatat64(dirfd: fd_t, noalias path: [*:0]const u8, noalias stat_buf: *Stat, flags: u32) c_int;
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pub extern "c" fn ftruncate64(fd: c_int, length: off_t) c_int;
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pub extern "c" fn getrlimit64(resource: rlimit_resource, rlim: *rlimit) c_int;
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pub extern "c" fn lseek64(fd: fd_t, offset: i64, whence: c_int) i64;
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pub extern "c" fn mmap64(addr: ?*align(std.mem.page_size) anyopaque, len: usize, prot: c_uint, flags: c_uint, fd: fd_t, offset: i64) *anyopaque;
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pub extern "c" fn open64(path: [*:0]const u8, oflag: c_uint, ...) c_int;
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pub extern "c" fn openat64(fd: c_int, path: [*:0]const u8, oflag: c_uint, ...) c_int;
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pub extern "c" fn pread64(fd: fd_t, buf: [*]u8, nbyte: usize, offset: i64) isize;
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pub extern "c" fn preadv64(fd: c_int, iov: [*]const iovec, iovcnt: c_uint, offset: i64) isize;
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pub extern "c" fn pwrite64(fd: fd_t, buf: [*]const u8, nbyte: usize, offset: i64) isize;
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pub extern "c" fn pwritev64(fd: c_int, iov: [*]const iovec_const, iovcnt: c_uint, offset: i64) isize;
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pub extern "c" fn sendfile64(out_fd: fd_t, in_fd: fd_t, offset: ?*i64, count: usize) isize;
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pub extern "c" fn setrlimit64(resource: rlimit_resource, rlim: *const rlimit) c_int;
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pub extern "c" fn getrandom(buf_ptr: [*]u8, buf_len: usize, flags: c_uint) isize;
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pub extern "c" fn sched_getaffinity(pid: c_int, size: usize, set: *cpu_set_t) c_int;
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pub extern "c" fn eventfd(initval: c_uint, flags: c_uint) c_int;
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pub extern "c" fn epoll_ctl(epfd: fd_t, op: c_uint, fd: fd_t, event: ?*epoll_event) c_int;
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pub extern "c" fn epoll_create1(flags: c_uint) c_int;
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pub extern "c" fn epoll_wait(epfd: fd_t, events: [*]epoll_event, maxevents: c_uint, timeout: c_int) c_int;
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pub extern "c" fn epoll_pwait(
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epfd: fd_t,
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events: [*]epoll_event,
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maxevents: c_int,
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timeout: c_int,
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sigmask: *const sigset_t,
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) c_int;
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pub extern "c" fn inotify_init1(flags: c_uint) c_int;
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pub extern "c" fn inotify_add_watch(fd: fd_t, pathname: [*:0]const u8, mask: u32) c_int;
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pub extern "c" fn inotify_rm_watch(fd: fd_t, wd: c_int) c_int;
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/// See std.elf for constants for this
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pub extern "c" fn getauxval(__type: c_ulong) c_ulong;
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pub const dl_iterate_phdr_callback = *const fn (info: *dl_phdr_info, size: usize, data: ?*anyopaque) callconv(.C) c_int;
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pub extern "c" fn dl_iterate_phdr(callback: dl_iterate_phdr_callback, data: ?*anyopaque) c_int;
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pub extern "c" fn sigaltstack(ss: ?*stack_t, old_ss: ?*stack_t) c_int;
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pub extern "c" fn memfd_create(name: [*:0]const u8, flags: c_uint) c_int;
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pub extern "c" fn pipe2(fds: *[2]fd_t, flags: u32) c_int;
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pub extern "c" fn fallocate(fd: fd_t, mode: c_int, offset: off_t, len: off_t) c_int;
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pub extern "c" fn sendfile(
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out_fd: fd_t,
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in_fd: fd_t,
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offset: ?*off_t,
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count: usize,
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) isize;
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pub extern "c" fn copy_file_range(fd_in: fd_t, off_in: ?*i64, fd_out: fd_t, off_out: ?*i64, len: usize, flags: c_uint) isize;
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pub extern "c" fn signalfd(fd: fd_t, mask: *const sigset_t, flags: c_uint) c_int;
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pub extern "c" fn prlimit(pid: pid_t, resource: rlimit_resource, new_limit: *const rlimit, old_limit: *rlimit) c_int;
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pub extern "c" fn posix_memalign(memptr: *?*anyopaque, alignment: usize, size: usize) c_int;
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pub extern "c" fn malloc_usable_size(?*const anyopaque) usize;
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pub extern "c" fn mincore(
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addr: *align(std.mem.page_size) anyopaque,
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length: usize,
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vec: [*]u8,
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) c_int;
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pub extern "c" fn madvise(
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addr: *align(std.mem.page_size) anyopaque,
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length: usize,
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advice: c_uint,
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) c_int;
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pub const pthread_attr_t = extern struct {
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__size: [56]u8,
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__align: c_long,
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};
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pub const pthread_mutex_t = extern struct {
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size: [__SIZEOF_PTHREAD_MUTEX_T]u8 align(@alignOf(usize)) = [_]u8{0} ** __SIZEOF_PTHREAD_MUTEX_T,
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};
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pub const pthread_cond_t = extern struct {
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size: [__SIZEOF_PTHREAD_COND_T]u8 align(@alignOf(usize)) = [_]u8{0} ** __SIZEOF_PTHREAD_COND_T,
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};
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pub const pthread_rwlock_t = switch (native_abi) {
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.android => switch (@sizeOf(usize)) {
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4 => extern struct {
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size: [40]u8 align(@alignOf(usize)) = [_]u8{0} ** 40,
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},
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8 => extern struct {
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size: [56]u8 align(@alignOf(usize)) = [_]u8{0} ** 56,
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},
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else => @compileError("impossible pointer size"),
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},
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else => extern struct {
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size: [56]u8 align(@alignOf(usize)) = [_]u8{0} ** 56,
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},
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};
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pub const pthread_key_t = c_uint;
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pub const sem_t = extern struct {
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__size: [__SIZEOF_SEM_T]u8 align(@alignOf(usize)),
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};
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const __SIZEOF_PTHREAD_COND_T = 48;
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const __SIZEOF_PTHREAD_MUTEX_T = switch (native_abi) {
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.musl, .musleabi, .musleabihf => if (@sizeOf(usize) == 8) 40 else 24,
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.gnu, .gnuabin32, .gnuabi64, .gnueabi, .gnueabihf, .gnux32 => switch (native_arch) {
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.aarch64 => 48,
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.x86_64 => if (native_abi == .gnux32) 40 else 32,
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.mips64, .powerpc64, .powerpc64le, .sparc64 => 40,
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else => if (@sizeOf(usize) == 8) 40 else 24,
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},
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.android => if (@sizeOf(usize) == 8) 40 else 4,
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else => @compileError("unsupported ABI"),
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};
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const __SIZEOF_SEM_T = 4 * @sizeOf(usize);
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pub extern "c" fn pthread_setname_np(thread: std.c.pthread_t, name: [*:0]const u8) E;
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pub extern "c" fn pthread_getname_np(thread: std.c.pthread_t, name: [*:0]u8, len: usize) E;
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pub const RTLD = struct {
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pub const LAZY = 1;
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pub const NOW = 2;
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pub const NOLOAD = 4;
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pub const NODELETE = 4096;
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pub const GLOBAL = 256;
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pub const LOCAL = 0;
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};
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pub const dirent = struct {
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d_ino: c_uint,
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d_off: c_uint,
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d_reclen: c_ushort,
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d_type: u8,
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d_name: [256]u8,
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};
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pub const dirent64 = struct {
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d_ino: c_ulong,
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d_off: c_ulong,
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d_reclen: c_ushort,
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d_type: u8,
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d_name: [256]u8,
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};
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