ea6525797d
`flock` locks based on the file handle, instead of the process id. This brings the file locking on unix based systems closer to file locking on Windows.
635 lines
13 KiB
Zig
635 lines
13 KiB
Zig
// x86-64-specific declarations that are intended to be imported into the POSIX namespace.
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const std = @import("../../../std.zig");
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const pid_t = linux.pid_t;
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const uid_t = linux.uid_t;
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const clock_t = linux.clock_t;
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const stack_t = linux.stack_t;
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const sigset_t = linux.sigset_t;
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const linux = std.os.linux;
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const sockaddr = linux.sockaddr;
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const socklen_t = linux.socklen_t;
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const iovec = linux.iovec;
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const iovec_const = linux.iovec_const;
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pub const mode_t = usize;
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pub const SYS = extern enum(usize) {
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read = 0,
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write = 1,
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open = 2,
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close = 3,
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stat = 4,
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fstat = 5,
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lstat = 6,
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poll = 7,
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lseek = 8,
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mmap = 9,
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mprotect = 10,
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munmap = 11,
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brk = 12,
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rt_sigaction = 13,
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rt_sigprocmask = 14,
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rt_sigreturn = 15,
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ioctl = 16,
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pread = 17,
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pwrite = 18,
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readv = 19,
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writev = 20,
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access = 21,
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pipe = 22,
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select = 23,
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sched_yield = 24,
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mremap = 25,
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msync = 26,
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mincore = 27,
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madvise = 28,
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shmget = 29,
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shmat = 30,
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shmctl = 31,
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dup = 32,
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dup2 = 33,
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pause = 34,
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nanosleep = 35,
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getitimer = 36,
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alarm = 37,
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setitimer = 38,
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getpid = 39,
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sendfile = 40,
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socket = 41,
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connect = 42,
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accept = 43,
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sendto = 44,
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recvfrom = 45,
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sendmsg = 46,
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recvmsg = 47,
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shutdown = 48,
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bind = 49,
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listen = 50,
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getsockname = 51,
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getpeername = 52,
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socketpair = 53,
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setsockopt = 54,
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getsockopt = 55,
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clone = 56,
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fork = 57,
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vfork = 58,
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execve = 59,
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exit = 60,
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wait4 = 61,
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kill = 62,
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uname = 63,
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semget = 64,
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semop = 65,
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semctl = 66,
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shmdt = 67,
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msgget = 68,
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msgsnd = 69,
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msgrcv = 70,
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msgctl = 71,
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fcntl = 72,
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flock = 73,
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fsync = 74,
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fdatasync = 75,
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truncate = 76,
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ftruncate = 77,
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getdents = 78,
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getcwd = 79,
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chdir = 80,
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fchdir = 81,
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rename = 82,
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mkdir = 83,
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rmdir = 84,
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creat = 85,
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link = 86,
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unlink = 87,
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symlink = 88,
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readlink = 89,
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chmod = 90,
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fchmod = 91,
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chown = 92,
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fchown = 93,
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lchown = 94,
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umask = 95,
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gettimeofday = 96,
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getrlimit = 97,
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getrusage = 98,
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sysinfo = 99,
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times = 100,
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ptrace = 101,
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getuid = 102,
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syslog = 103,
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getgid = 104,
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setuid = 105,
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setgid = 106,
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geteuid = 107,
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getegid = 108,
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setpgid = 109,
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getppid = 110,
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getpgrp = 111,
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setsid = 112,
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setreuid = 113,
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setregid = 114,
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getgroups = 115,
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setgroups = 116,
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setresuid = 117,
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getresuid = 118,
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setresgid = 119,
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getresgid = 120,
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getpgid = 121,
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setfsuid = 122,
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setfsgid = 123,
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getsid = 124,
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capget = 125,
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capset = 126,
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rt_sigpending = 127,
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rt_sigtimedwait = 128,
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rt_sigqueueinfo = 129,
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rt_sigsuspend = 130,
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sigaltstack = 131,
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utime = 132,
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mknod = 133,
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uselib = 134,
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personality = 135,
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ustat = 136,
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statfs = 137,
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fstatfs = 138,
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sysfs = 139,
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getpriority = 140,
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setpriority = 141,
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sched_setparam = 142,
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sched_getparam = 143,
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sched_setscheduler = 144,
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sched_getscheduler = 145,
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sched_get_priority_max = 146,
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sched_get_priority_min = 147,
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sched_rr_get_interval = 148,
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mlock = 149,
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munlock = 150,
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mlockall = 151,
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munlockall = 152,
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vhangup = 153,
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modify_ldt = 154,
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pivot_root = 155,
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_sysctl = 156,
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prctl = 157,
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arch_prctl = 158,
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adjtimex = 159,
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setrlimit = 160,
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chroot = 161,
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sync = 162,
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acct = 163,
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settimeofday = 164,
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mount = 165,
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umount2 = 166,
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swapon = 167,
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swapoff = 168,
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reboot = 169,
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sethostname = 170,
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setdomainname = 171,
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iopl = 172,
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ioperm = 173,
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create_module = 174,
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init_module = 175,
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delete_module = 176,
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get_kernel_syms = 177,
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query_module = 178,
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quotactl = 179,
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nfsservctl = 180,
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getpmsg = 181,
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putpmsg = 182,
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afs_syscall = 183,
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tuxcall = 184,
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security = 185,
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gettid = 186,
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readahead = 187,
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setxattr = 188,
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lsetxattr = 189,
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fsetxattr = 190,
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getxattr = 191,
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lgetxattr = 192,
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fgetxattr = 193,
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listxattr = 194,
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llistxattr = 195,
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flistxattr = 196,
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removexattr = 197,
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lremovexattr = 198,
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fremovexattr = 199,
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tkill = 200,
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time = 201,
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futex = 202,
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sched_setaffinity = 203,
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sched_getaffinity = 204,
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set_thread_area = 205,
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io_setup = 206,
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io_destroy = 207,
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io_getevents = 208,
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io_submit = 209,
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io_cancel = 210,
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get_thread_area = 211,
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lookup_dcookie = 212,
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epoll_create = 213,
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epoll_ctl_old = 214,
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epoll_wait_old = 215,
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remap_file_pages = 216,
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getdents64 = 217,
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set_tid_address = 218,
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restart_syscall = 219,
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semtimedop = 220,
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fadvise64 = 221,
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timer_create = 222,
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timer_settime = 223,
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timer_gettime = 224,
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timer_getoverrun = 225,
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timer_delete = 226,
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clock_settime = 227,
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clock_gettime = 228,
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clock_getres = 229,
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clock_nanosleep = 230,
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exit_group = 231,
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epoll_wait = 232,
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epoll_ctl = 233,
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tgkill = 234,
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utimes = 235,
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vserver = 236,
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mbind = 237,
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set_mempolicy = 238,
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get_mempolicy = 239,
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mq_open = 240,
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mq_unlink = 241,
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mq_timedsend = 242,
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mq_timedreceive = 243,
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mq_notify = 244,
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mq_getsetattr = 245,
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kexec_load = 246,
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waitid = 247,
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add_key = 248,
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request_key = 249,
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keyctl = 250,
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ioprio_set = 251,
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ioprio_get = 252,
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inotify_init = 253,
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inotify_add_watch = 254,
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inotify_rm_watch = 255,
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migrate_pages = 256,
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openat = 257,
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mkdirat = 258,
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mknodat = 259,
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fchownat = 260,
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futimesat = 261,
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newfstatat = 262,
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fstatat = 262,
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unlinkat = 263,
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renameat = 264,
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linkat = 265,
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symlinkat = 266,
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readlinkat = 267,
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fchmodat = 268,
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faccessat = 269,
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pselect6 = 270,
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ppoll = 271,
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unshare = 272,
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set_robust_list = 273,
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get_robust_list = 274,
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splice = 275,
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tee = 276,
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sync_file_range = 277,
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vmsplice = 278,
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move_pages = 279,
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utimensat = 280,
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epoll_pwait = 281,
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signalfd = 282,
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timerfd_create = 283,
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eventfd = 284,
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fallocate = 285,
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timerfd_settime = 286,
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timerfd_gettime = 287,
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accept4 = 288,
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signalfd4 = 289,
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eventfd2 = 290,
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epoll_create1 = 291,
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dup3 = 292,
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pipe2 = 293,
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inotify_init1 = 294,
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preadv = 295,
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pwritev = 296,
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rt_tgsigqueueinfo = 297,
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perf_event_open = 298,
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recvmmsg = 299,
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fanotify_init = 300,
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fanotify_mark = 301,
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prlimit64 = 302,
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name_to_handle_at = 303,
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open_by_handle_at = 304,
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clock_adjtime = 305,
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syncfs = 306,
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sendmmsg = 307,
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setns = 308,
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getcpu = 309,
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process_vm_readv = 310,
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process_vm_writev = 311,
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kcmp = 312,
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finit_module = 313,
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sched_setattr = 314,
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sched_getattr = 315,
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renameat2 = 316,
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seccomp = 317,
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getrandom = 318,
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memfd_create = 319,
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kexec_file_load = 320,
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bpf = 321,
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execveat = 322,
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userfaultfd = 323,
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membarrier = 324,
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mlock2 = 325,
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copy_file_range = 326,
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preadv2 = 327,
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pwritev2 = 328,
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pkey_mprotect = 329,
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pkey_alloc = 330,
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pkey_free = 331,
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statx = 332,
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io_pgetevents = 333,
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rseq = 334,
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pidfd_send_signal = 424,
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io_uring_setup = 425,
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io_uring_enter = 426,
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io_uring_register = 427,
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open_tree = 428,
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move_mount = 429,
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fsopen = 430,
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fsconfig = 431,
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fsmount = 432,
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fspick = 433,
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pidfd_open = 434,
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clone3 = 435,
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openat2 = 437,
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pidfd_getfd = 438,
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_,
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};
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pub const O_CREAT = 0o100;
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pub const O_EXCL = 0o200;
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pub const O_NOCTTY = 0o400;
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pub const O_TRUNC = 0o1000;
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pub const O_APPEND = 0o2000;
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pub const O_NONBLOCK = 0o4000;
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pub const O_DSYNC = 0o10000;
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pub const O_SYNC = 0o4010000;
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pub const O_RSYNC = 0o4010000;
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pub const O_DIRECTORY = 0o200000;
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pub const O_NOFOLLOW = 0o400000;
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pub const O_CLOEXEC = 0o2000000;
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pub const O_ASYNC = 0o20000;
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pub const O_DIRECT = 0o40000;
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pub const O_LARGEFILE = 0;
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pub const O_NOATIME = 0o1000000;
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pub const O_PATH = 0o10000000;
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pub const O_TMPFILE = 0o20200000;
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pub const O_NDELAY = O_NONBLOCK;
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pub const F_DUPFD = 0;
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pub const F_GETFD = 1;
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pub const F_SETFD = 2;
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pub const F_GETFL = 3;
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pub const F_SETFL = 4;
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pub const F_SETOWN = 8;
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pub const F_GETOWN = 9;
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pub const F_SETSIG = 10;
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pub const F_GETSIG = 11;
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pub const F_GETLK = 5;
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pub const F_SETLK = 6;
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pub const F_SETLKW = 7;
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pub const F_SETOWN_EX = 15;
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pub const F_GETOWN_EX = 16;
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pub const F_GETOWNER_UIDS = 17;
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/// only give out 32bit addresses
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pub const MAP_32BIT = 0x40;
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/// stack-like segment
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pub const MAP_GROWSDOWN = 0x0100;
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/// ETXTBSY
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pub const MAP_DENYWRITE = 0x0800;
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/// mark it as an executable
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pub const MAP_EXECUTABLE = 0x1000;
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/// pages are locked
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pub const MAP_LOCKED = 0x2000;
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/// don't check for reservations
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pub const MAP_NORESERVE = 0x4000;
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pub const VDSO_CGT_SYM = "__vdso_clock_gettime";
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pub const VDSO_CGT_VER = "LINUX_2.6";
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pub const VDSO_GETCPU_SYM = "__vdso_getcpu";
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pub const VDSO_GETCPU_VER = "LINUX_2.6";
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pub const ARCH_SET_GS = 0x1001;
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pub const ARCH_SET_FS = 0x1002;
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pub const ARCH_GET_FS = 0x1003;
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pub const ARCH_GET_GS = 0x1004;
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pub const REG_R8 = 0;
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pub const REG_R9 = 1;
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pub const REG_R10 = 2;
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pub const REG_R11 = 3;
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pub const REG_R12 = 4;
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pub const REG_R13 = 5;
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pub const REG_R14 = 6;
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pub const REG_R15 = 7;
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pub const REG_RDI = 8;
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pub const REG_RSI = 9;
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pub const REG_RBP = 10;
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pub const REG_RBX = 11;
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pub const REG_RDX = 12;
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pub const REG_RAX = 13;
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pub const REG_RCX = 14;
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pub const REG_RSP = 15;
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pub const REG_RIP = 16;
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pub const REG_EFL = 17;
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pub const REG_CSGSFS = 18;
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pub const REG_ERR = 19;
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pub const REG_TRAPNO = 20;
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pub const REG_OLDMASK = 21;
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pub const REG_CR2 = 22;
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pub const LOCK_SH = 1;
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pub const LOCK_EX = 2;
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pub const LOCK_UN = 8;
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pub const LOCK_NB = 4;
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pub const F_RDLCK = 0;
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pub const F_WRLCK = 1;
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pub const F_UNLCK = 2;
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pub const Flock = extern struct {
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l_type: i16,
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l_whence: i16,
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l_start: off_t,
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l_len: off_t,
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l_pid: pid_t,
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};
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pub const msghdr = extern struct {
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msg_name: ?*sockaddr,
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msg_namelen: socklen_t,
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msg_iov: [*]iovec,
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msg_iovlen: i32,
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__pad1: i32,
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msg_control: ?*c_void,
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msg_controllen: socklen_t,
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__pad2: socklen_t,
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msg_flags: i32,
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};
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pub const msghdr_const = extern struct {
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msg_name: ?*const sockaddr,
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msg_namelen: socklen_t,
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msg_iov: [*]iovec_const,
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msg_iovlen: i32,
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__pad1: i32,
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msg_control: ?*c_void,
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msg_controllen: socklen_t,
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__pad2: socklen_t,
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msg_flags: i32,
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};
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pub const off_t = i64;
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pub const ino_t = u64;
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/// Renamed to Stat to not conflict with the stat function.
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/// atime, mtime, and ctime have functions to return `timespec`,
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/// because although this is a POSIX API, the layout and names of
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/// the structs are inconsistent across operating systems, and
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/// in C, macros are used to hide the differences. Here we use
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/// methods to accomplish this.
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pub const Stat = extern struct {
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dev: u64,
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ino: ino_t,
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nlink: usize,
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mode: u32,
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uid: u32,
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gid: u32,
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__pad0: u32,
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rdev: u64,
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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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__unused: [3]isize,
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pub fn atime(self: Stat) timespec {
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return self.atim;
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}
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pub fn mtime(self: Stat) timespec {
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return self.mtim;
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}
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pub fn ctime(self: Stat) timespec {
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return self.ctim;
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}
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};
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pub const timespec = extern struct {
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tv_sec: isize,
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tv_nsec: isize,
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};
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pub const timeval = extern struct {
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tv_sec: isize,
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tv_usec: isize,
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};
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pub const timezone = extern struct {
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|
tz_minuteswest: i32,
|
|
tz_dsttime: i32,
|
|
};
|
|
|
|
pub const Elf_Symndx = u32;
|
|
|
|
pub const greg_t = usize;
|
|
pub const gregset_t = [23]greg_t;
|
|
pub const fpstate = extern struct {
|
|
cwd: u16,
|
|
swd: u16,
|
|
ftw: u16,
|
|
fop: u16,
|
|
rip: usize,
|
|
rdp: usize,
|
|
mxcsr: u32,
|
|
mxcr_mask: u32,
|
|
st: [8]extern struct {
|
|
significand: [4]u16,
|
|
exponent: u16,
|
|
padding: [3]u16 = undefined,
|
|
},
|
|
xmm: [16]extern struct {
|
|
element: [4]u32,
|
|
},
|
|
padding: [24]u32 = undefined,
|
|
};
|
|
pub const fpregset_t = *fpstate;
|
|
pub const sigcontext = extern struct {
|
|
r8: usize,
|
|
r9: usize,
|
|
r10: usize,
|
|
r11: usize,
|
|
r12: usize,
|
|
r13: usize,
|
|
r14: usize,
|
|
r15: usize,
|
|
|
|
rdi: usize,
|
|
rsi: usize,
|
|
rbp: usize,
|
|
rbx: usize,
|
|
rdx: usize,
|
|
rax: usize,
|
|
rcx: usize,
|
|
rsp: usize,
|
|
rip: usize,
|
|
eflags: usize,
|
|
|
|
cs: u16,
|
|
gs: u16,
|
|
fs: u16,
|
|
pad0: u16 = undefined,
|
|
|
|
err: usize,
|
|
trapno: usize,
|
|
oldmask: usize,
|
|
cr2: usize,
|
|
|
|
fpstate: *fpstate,
|
|
reserved1: [8]usize = undefined,
|
|
};
|
|
|
|
pub const mcontext_t = extern struct {
|
|
gregs: gregset_t,
|
|
fpregs: fpregset_t,
|
|
reserved1: [8]usize = undefined,
|
|
};
|
|
|
|
pub const ucontext_t = extern struct {
|
|
flags: usize,
|
|
link: *ucontext_t,
|
|
stack: stack_t,
|
|
mcontext: mcontext_t,
|
|
sigmask: sigset_t,
|
|
fpregs_mem: [64]usize,
|
|
};
|