mirror of
https://github.com/ziglang/zig.git
synced 2026-02-12 20:37:54 +00:00
darwin: resurrect posix_spawn wrappers
This commit is contained in:
Jakub Konka
parent
e35c8a2fd6
commit
266c81322e
@ -203,47 +203,6 @@ pub extern "c" fn mach_timebase_info(tinfo: ?*mach_timebase_info_data) kern_retu
|
||||
pub extern "c" fn malloc_size(?*const anyopaque) usize;
|
||||
pub extern "c" fn posix_memalign(memptr: *?*anyopaque, alignment: usize, size: usize) c_int;
|
||||
|
||||
pub const posix_spawnattr_t = *opaque {};
|
||||
pub const posix_spawn_file_actions_t = *opaque {};
|
||||
pub extern "c" fn posix_spawnattr_init(attr: *posix_spawnattr_t) c_int;
|
||||
pub extern "c" fn posix_spawnattr_destroy(attr: *posix_spawnattr_t) c_int;
|
||||
pub extern "c" fn posix_spawnattr_setflags(attr: *posix_spawnattr_t, flags: c_short) c_int;
|
||||
pub extern "c" fn posix_spawnattr_getflags(attr: *const posix_spawnattr_t, flags: *c_short) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_init(actions: *posix_spawn_file_actions_t) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_destroy(actions: *posix_spawn_file_actions_t) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addclose(actions: *posix_spawn_file_actions_t, filedes: fd_t) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addopen(
|
||||
actions: *posix_spawn_file_actions_t,
|
||||
filedes: fd_t,
|
||||
path: [*:0]const u8,
|
||||
oflag: c_int,
|
||||
mode: mode_t,
|
||||
) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_adddup2(
|
||||
actions: *posix_spawn_file_actions_t,
|
||||
filedes: fd_t,
|
||||
newfiledes: fd_t,
|
||||
) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addinherit_np(actions: *posix_spawn_file_actions_t, filedes: fd_t) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addchdir_np(actions: *posix_spawn_file_actions_t, path: [*:0]const u8) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addfchdir_np(actions: *posix_spawn_file_actions_t, filedes: fd_t) c_int;
|
||||
pub extern "c" fn posix_spawn(
|
||||
pid: *pid_t,
|
||||
path: [*:0]const u8,
|
||||
actions: ?*const posix_spawn_file_actions_t,
|
||||
attr: ?*const posix_spawnattr_t,
|
||||
argv: [*:null]?[*:0]const u8,
|
||||
env: [*:null]?[*:0]const u8,
|
||||
) c_int;
|
||||
pub extern "c" fn posix_spawnp(
|
||||
pid: *pid_t,
|
||||
path: [*:0]const u8,
|
||||
actions: ?*const posix_spawn_file_actions_t,
|
||||
attr: ?*const posix_spawnattr_t,
|
||||
argv: [*:null]?[*:0]const u8,
|
||||
env: [*:null]?[*:0]const u8,
|
||||
) c_int;
|
||||
|
||||
pub extern "c" fn kevent64(
|
||||
kq: c_int,
|
||||
changelist: [*]const kevent64_s,
|
||||
@ -2176,18 +2135,6 @@ pub const E = enum(u16) {
|
||||
_,
|
||||
};
|
||||
|
||||
pub fn getKernError(err: kern_return_t) KernE {
|
||||
return @intToEnum(KernE, @truncate(u32, @intCast(usize, err)));
|
||||
}
|
||||
|
||||
pub fn unexpectedKernError(err: KernE) std.os.UnexpectedError {
|
||||
if (std.os.unexpected_error_tracing) {
|
||||
std.debug.print("unexpected errno: {d}\n", .{@enumToInt(err)});
|
||||
std.debug.dumpCurrentStackTrace(null);
|
||||
}
|
||||
return error.Unexpected;
|
||||
}
|
||||
|
||||
/// Kernel return values
|
||||
pub const KernE = enum(u32) {
|
||||
SUCCESS = 0,
|
||||
@ -3063,6 +3010,29 @@ pub const CPUFAMILY = enum(u32) {
|
||||
_,
|
||||
};
|
||||
|
||||
pub const PT = struct {
|
||||
pub const TRACE_ME = 0;
|
||||
pub const READ_I = 1;
|
||||
pub const READ_D = 2;
|
||||
pub const READ_U = 3;
|
||||
pub const WRITE_I = 4;
|
||||
pub const WRITE_D = 5;
|
||||
pub const WRITE_U = 6;
|
||||
pub const CONTINUE = 7;
|
||||
pub const KILL = 8;
|
||||
pub const STEP = 9;
|
||||
pub const DETACH = 11;
|
||||
pub const SIGEXC = 12;
|
||||
pub const THUPDATE = 13;
|
||||
pub const ATTACHEXC = 14;
|
||||
pub const FORCEQUOTA = 30;
|
||||
pub const DENY_ATTACH = 31;
|
||||
};
|
||||
|
||||
pub const caddr_t = ?[*]u8;
|
||||
|
||||
pub extern "c" fn ptrace(request: c_int, pid: pid_t, addr: caddr_t, data: c_int) c_int;
|
||||
|
||||
pub const POSIX_SPAWN_RESETIDS = 0x0001;
|
||||
pub const POSIX_SPAWN_SETPGROUP = 0x0002;
|
||||
pub const POSIX_SPAWN_SETSIGDEF = 0x0004;
|
||||
@ -3074,26 +3044,283 @@ pub const POSIX_SPAWN_SETSID = 0x0400;
|
||||
pub const _POSIX_SPAWN_RESLIDE = 0x0800;
|
||||
pub const POSIX_SPAWN_CLOEXEC_DEFAULT = 0x4000;
|
||||
|
||||
pub const PT_TRACE_ME = 0;
|
||||
pub const PT_READ_I = 1;
|
||||
pub const PT_READ_D = 2;
|
||||
pub const PT_READ_U = 3;
|
||||
pub const PT_WRITE_I = 4;
|
||||
pub const PT_WRITE_D = 5;
|
||||
pub const PT_WRITE_U = 6;
|
||||
pub const PT_CONTINUE = 7;
|
||||
pub const PT_KILL = 8;
|
||||
pub const PT_STEP = 9;
|
||||
pub const PT_DETACH = 11;
|
||||
pub const PT_SIGEXC = 12;
|
||||
pub const PT_THUPDATE = 13;
|
||||
pub const PT_ATTACHEXC = 14;
|
||||
pub const PT_FORCEQUOTA = 30;
|
||||
pub const PT_DENY_ATTACH = 31;
|
||||
pub const posix_spawnattr_t = *opaque {};
|
||||
pub const posix_spawn_file_actions_t = *opaque {};
|
||||
pub extern "c" fn posix_spawnattr_init(attr: *posix_spawnattr_t) c_int;
|
||||
pub extern "c" fn posix_spawnattr_destroy(attr: *posix_spawnattr_t) c_int;
|
||||
pub extern "c" fn posix_spawnattr_setflags(attr: *posix_spawnattr_t, flags: c_short) c_int;
|
||||
pub extern "c" fn posix_spawnattr_getflags(attr: *const posix_spawnattr_t, flags: *c_short) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_init(actions: *posix_spawn_file_actions_t) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_destroy(actions: *posix_spawn_file_actions_t) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addclose(actions: *posix_spawn_file_actions_t, filedes: fd_t) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addopen(
|
||||
actions: *posix_spawn_file_actions_t,
|
||||
filedes: fd_t,
|
||||
path: [*:0]const u8,
|
||||
oflag: c_int,
|
||||
mode: mode_t,
|
||||
) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_adddup2(
|
||||
actions: *posix_spawn_file_actions_t,
|
||||
filedes: fd_t,
|
||||
newfiledes: fd_t,
|
||||
) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addinherit_np(actions: *posix_spawn_file_actions_t, filedes: fd_t) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addchdir_np(actions: *posix_spawn_file_actions_t, path: [*:0]const u8) c_int;
|
||||
pub extern "c" fn posix_spawn_file_actions_addfchdir_np(actions: *posix_spawn_file_actions_t, filedes: fd_t) c_int;
|
||||
pub extern "c" fn posix_spawn(
|
||||
pid: *pid_t,
|
||||
path: [*:0]const u8,
|
||||
actions: ?*const posix_spawn_file_actions_t,
|
||||
attr: ?*const posix_spawnattr_t,
|
||||
argv: [*:null]?[*:0]const u8,
|
||||
env: [*:null]?[*:0]const u8,
|
||||
) c_int;
|
||||
pub extern "c" fn posix_spawnp(
|
||||
pid: *pid_t,
|
||||
path: [*:0]const u8,
|
||||
actions: ?*const posix_spawn_file_actions_t,
|
||||
attr: ?*const posix_spawnattr_t,
|
||||
argv: [*:null]?[*:0]const u8,
|
||||
env: [*:null]?[*:0]const u8,
|
||||
) c_int;
|
||||
|
||||
pub const caddr_t = ?[*]u8;
|
||||
pub const PosixSpawn = struct {
|
||||
const errno = std.os.errno;
|
||||
const unexpectedErrno = std.os.unexpectedErrno;
|
||||
|
||||
pub extern "c" fn ptrace(request: c_int, pid: pid_t, addr: caddr_t, data: c_int) c_int;
|
||||
pub const Error = error{
|
||||
SystemResources,
|
||||
InvalidFileDescriptor,
|
||||
NameTooLong,
|
||||
TooBig,
|
||||
PermissionDenied,
|
||||
InputOutput,
|
||||
FileSystem,
|
||||
FileNotFound,
|
||||
InvalidExe,
|
||||
NotDir,
|
||||
FileBusy,
|
||||
/// Returned when the child fails to execute either in the pre-exec() initialization step, or
|
||||
/// when exec(3) is invoked.
|
||||
ChildExecFailed,
|
||||
} || std.os.UnexpectedError;
|
||||
|
||||
pub const Attr = struct {
|
||||
attr: posix_spawnattr_t,
|
||||
|
||||
pub fn init() Error!Attr {
|
||||
var attr: posix_spawnattr_t = undefined;
|
||||
switch (errno(posix_spawnattr_init(&attr))) {
|
||||
.SUCCESS => return Attr{ .attr = attr },
|
||||
.NOMEM => return error.SystemResources,
|
||||
.INVAL => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn deinit(self: *Attr) void {
|
||||
defer self.* = undefined;
|
||||
switch (errno(posix_spawnattr_destroy(&self.attr))) {
|
||||
.SUCCESS => return,
|
||||
.INVAL => unreachable, // Invalid parameters.
|
||||
else => unreachable,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn get(self: Attr) Error!u16 {
|
||||
var flags: c_short = undefined;
|
||||
switch (errno(posix_spawnattr_getflags(&self.attr, &flags))) {
|
||||
.SUCCESS => return @bitCast(u16, flags),
|
||||
.INVAL => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn set(self: *Attr, flags: u16) Error!void {
|
||||
switch (errno(posix_spawnattr_setflags(&self.attr, @bitCast(c_short, flags)))) {
|
||||
.SUCCESS => return,
|
||||
.INVAL => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
pub const Actions = struct {
|
||||
actions: posix_spawn_file_actions_t,
|
||||
|
||||
pub fn init() Error!Actions {
|
||||
var actions: posix_spawn_file_actions_t = undefined;
|
||||
switch (errno(posix_spawn_file_actions_init(&actions))) {
|
||||
.SUCCESS => return Actions{ .actions = actions },
|
||||
.NOMEM => return error.SystemResources,
|
||||
.INVAL => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn deinit(self: *Actions) void {
|
||||
defer self.* = undefined;
|
||||
switch (errno(posix_spawn_file_actions_destroy(&self.actions))) {
|
||||
.SUCCESS => return,
|
||||
.INVAL => unreachable, // Invalid parameters.
|
||||
else => unreachable,
|
||||
}
|
||||
}
|
||||
|
||||
pub fn open(self: *Actions, fd: fd_t, path: []const u8, flags: u32, mode: mode_t) Error!void {
|
||||
const posix_path = try std.os.toPosixPath(path);
|
||||
return self.openZ(fd, &posix_path, flags, mode);
|
||||
}
|
||||
|
||||
pub fn openZ(self: *Actions, fd: fd_t, path: [*:0]const u8, flags: u32, mode: mode_t) Error!void {
|
||||
switch (errno(posix_spawn_file_actions_addopen(&self.actions, fd, path, @bitCast(c_int, flags), mode))) {
|
||||
.SUCCESS => return,
|
||||
.BADF => return error.InvalidFileDescriptor,
|
||||
.NOMEM => return error.SystemResources,
|
||||
.NAMETOOLONG => return error.NameTooLong,
|
||||
.INVAL => unreachable, // the value of file actions is invalid
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn close(self: *Actions, fd: fd_t) Error!void {
|
||||
switch (errno(posix_spawn_file_actions_addclose(&self.actions, fd))) {
|
||||
.SUCCESS => return,
|
||||
.BADF => return error.InvalidFileDescriptor,
|
||||
.NOMEM => return error.SystemResources,
|
||||
.INVAL => unreachable, // the value of file actions is invalid
|
||||
.NAMETOOLONG => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn dup2(self: *Actions, fd: fd_t, newfd: fd_t) Error!void {
|
||||
switch (errno(posix_spawn_file_actions_adddup2(&self.actions, fd, newfd))) {
|
||||
.SUCCESS => return,
|
||||
.BADF => return error.InvalidFileDescriptor,
|
||||
.NOMEM => return error.SystemResources,
|
||||
.INVAL => unreachable, // the value of file actions is invalid
|
||||
.NAMETOOLONG => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn inherit(self: *Actions, fd: fd_t) Error!void {
|
||||
switch (errno(posix_spawn_file_actions_addinherit_np(&self.actions, fd))) {
|
||||
.SUCCESS => return,
|
||||
.BADF => return error.InvalidFileDescriptor,
|
||||
.NOMEM => return error.SystemResources,
|
||||
.INVAL => unreachable, // the value of file actions is invalid
|
||||
.NAMETOOLONG => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn chdir(self: *Actions, path: []const u8) Error!void {
|
||||
const posix_path = try std.os.toPosixPath(path);
|
||||
return self.chdirZ(&posix_path);
|
||||
}
|
||||
|
||||
pub fn chdirZ(self: *Actions, path: [*:0]const u8) Error!void {
|
||||
switch (errno(posix_spawn_file_actions_addchdir_np(&self.actions, path))) {
|
||||
.SUCCESS => return,
|
||||
.NOMEM => return error.SystemResources,
|
||||
.NAMETOOLONG => return error.NameTooLong,
|
||||
.BADF => unreachable,
|
||||
.INVAL => unreachable, // the value of file actions is invalid
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn fchdir(self: *Actions, fd: fd_t) Error!void {
|
||||
switch (errno(posix_spawn_file_actions_addfchdir_np(&self.actions, fd))) {
|
||||
.SUCCESS => return,
|
||||
.BADF => return error.InvalidFileDescriptor,
|
||||
.NOMEM => return error.SystemResources,
|
||||
.INVAL => unreachable, // the value of file actions is invalid
|
||||
.NAMETOOLONG => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
pub fn spawn(
|
||||
path: []const u8,
|
||||
actions: ?Actions,
|
||||
attr: ?Attr,
|
||||
argv: [*:null]?[*:0]const u8,
|
||||
envp: [*:null]?[*:0]const u8,
|
||||
) Error!pid_t {
|
||||
const posix_path = try std.os.toPosixPath(path);
|
||||
return spawnZ(&posix_path, actions, attr, argv, envp);
|
||||
}
|
||||
|
||||
pub fn spawnZ(
|
||||
path: [*:0]const u8,
|
||||
actions: ?Actions,
|
||||
attr: ?Attr,
|
||||
argv: [*:null]?[*:0]const u8,
|
||||
envp: [*:null]?[*:0]const u8,
|
||||
) Error!pid_t {
|
||||
var pid: pid_t = undefined;
|
||||
switch (errno(posix_spawn(
|
||||
&pid,
|
||||
path,
|
||||
if (actions) |a| &a.actions else null,
|
||||
if (attr) |a| &a.attr else null,
|
||||
argv,
|
||||
envp,
|
||||
))) {
|
||||
.SUCCESS => return pid,
|
||||
.@"2BIG" => return error.TooBig,
|
||||
.NOMEM => return error.SystemResources,
|
||||
.BADF => return error.InvalidFileDescriptor,
|
||||
.ACCES => return error.PermissionDenied,
|
||||
.IO => return error.InputOutput,
|
||||
.LOOP => return error.FileSystem,
|
||||
.NAMETOOLONG => return error.NameTooLong,
|
||||
.NOENT => return error.FileNotFound,
|
||||
.NOEXEC => return error.InvalidExe,
|
||||
.NOTDIR => return error.NotDir,
|
||||
.TXTBSY => return error.FileBusy,
|
||||
.BADARCH => return error.InvalidExe,
|
||||
.BADEXEC => return error.InvalidExe,
|
||||
.FAULT => unreachable,
|
||||
.INVAL => unreachable,
|
||||
else => |err| return unexpectedErrno(err),
|
||||
}
|
||||
}
|
||||
|
||||
pub fn waitpid(pid: pid_t, flags: u32) Error!std.os.WaitPidResult {
|
||||
var status: c_int = undefined;
|
||||
while (true) {
|
||||
const rc = waitpid(pid, &status, @intCast(c_int, flags));
|
||||
switch (errno(rc)) {
|
||||
.SUCCESS => return std.os.WaitPidResult{
|
||||
.pid = @intCast(pid_t, rc),
|
||||
.status = @bitCast(u32, status),
|
||||
},
|
||||
.INTR => continue,
|
||||
.CHILD => return error.ChildExecFailed,
|
||||
.INVAL => unreachable, // Invalid flags.
|
||||
else => unreachable,
|
||||
}
|
||||
}
|
||||
}
|
||||
};
|
||||
|
||||
pub fn getKernError(err: kern_return_t) KernE {
|
||||
return @intToEnum(KernE, @truncate(u32, @intCast(usize, err)));
|
||||
}
|
||||
|
||||
pub fn unexpectedKernError(err: KernE) std.os.UnexpectedError {
|
||||
if (std.os.unexpected_error_tracing) {
|
||||
std.debug.print("unexpected errno: {d}\n", .{@enumToInt(err)});
|
||||
std.debug.dumpCurrentStackTrace(null);
|
||||
}
|
||||
return error.Unexpected;
|
||||
}
|
||||
|
||||
pub const MachError = error{
|
||||
/// Not enough permissions held to perform the requested kernel
|
||||
|
||||
Loading…
x
Reference in New Issue
Block a user