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export @symbol("write") fn write(fd: int, buf: *const opaque, count: size) size;
export @symbol("close") fn close(fd: int) int;
export @symbol("dup2") fn dup2(old: int, new: int) int;
export @symbol("getpid") fn getpid() int;
export def EXIT_SUCCESS: int = 0;
export @symbol("exit") fn exit(status: int) never;
export @symbol("fork") fn fork() int;
export @symbol("execve") fn execve(path: *const u8, argv: *[*]nullable *const u8,
envp: *[*]nullable *const u8) int;
export type time_t = i64;
export type suseconds_t = i64;
export type timeval = struct {
tv_sec: time_t,
tv_usec: suseconds_t,
};
export type rusage = struct {
ru_utime: timeval,
ru_stime: timeval,
ru_maxrss: i64,
ru_ixrss: i64,
ru_idrss: i64,
ru_isrss: i64,
ru_minflt: i64,
ru_majflt: i64,
ru_nswap: i64,
ru_inblock: i64,
ru_oublock: i64,
ru_msgsnd: i64,
ru_msgrcv: i64,
ru_nsignals: i64,
ru_nvcsw: i64,
ru_nivcsw: i64,
};
export @symbol("wait4") fn wait4(
wpid: int,
status: *int,
options: int,
rusage: nullable *rusage
) int;
export fn wifexited(status: int) bool = wtermsig(status) == 0;
export fn wexitstatus(status: int) int = (status & 0xff00) >> 8;
export fn wtermsig(status: int) int = status & 0x7f;
export fn wifsignaled(status: int) bool =
wtermsig(status) != 0o177 && wtermsig(status) != 0 && status != 0x13;
export @symbol("kill") fn kill(pid: int, signal: int) int;
export @symbol("pipe2") fn pipe2(pipefd: *[2]int, flags: int) int;
export def MAP_SHARED: uint = 0x0001;
export def MAP_PRIVATE: uint = 0x0002;
export def MAP_FIXED: uint = 0x0010;
export def __MAP_NOREPLACE: uint = 0x0800;
export def MAP_ANON: uint = 0x1000;
export def MAP_ANONYMOUS: uint = MAP_ANON;
export def __MAP_NOFAULT: uint = 0x2000;
export def MAP_STACK: uint = 0x4000;
export def MAP_CONCEAL: uint = 0x8000;
def PROT_NONE: uint = 0x00;
def PROT_READ: uint = 0x01;
def PROT_WRITE: uint = 0x02;
def PROT_EXEC: uint = 0x04;
export @symbol("mmap") fn mmap(
addr: nullable *opaque,
length: size,
prot: int,
flags: int,
fd: int,
offs: i64
) *opaque;
export @symbol("munmap") fn munmap(addr: *opaque, length: size) int;
export def SIGABRT: int = 6;
export def SIGCHLD: int = 20;
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