diff options
Diffstat (limited to 'lib/std/Thread.zig')
| -rw-r--r-- | lib/std/Thread.zig | 38 |
1 files changed, 20 insertions, 18 deletions
diff --git a/lib/std/Thread.zig b/lib/std/Thread.zig index a0f66b3fa8..795dfb2daa 100644 --- a/lib/std/Thread.zig +++ b/lib/std/Thread.zig @@ -18,7 +18,6 @@ pub const Condition = @import("Thread/Condition.zig"); pub const RwLock = @import("Thread/RwLock.zig"); pub const use_pthreads = target.os.tag != .windows and target.os.tag != .wasi and builtin.link_libc; -const is_gnu = target.abi.isGnu(); const Thread = @This(); const Impl = if (target.os.tag == .windows) @@ -171,21 +170,27 @@ pub fn getName(self: Thread, buffer_ptr: *[max_name_len:0]u8) GetNameError!?[]co var buffer: [:0]u8 = buffer_ptr; switch (target.os.tag) { - .linux => if (use_pthreads and is_gnu) { - const err = std.c.pthread_getname_np(self.getHandle(), buffer.ptr, max_name_len + 1); - switch (err) { - .SUCCESS => return std.mem.sliceTo(buffer, 0), - .RANGE => unreachable, - else => |e| return os.unexpectedErrno(e), - } - } else if (use_pthreads and self.getHandle() == std.c.pthread_self()) { - // Get the name of the calling thread (no thread id required). - const err = try os.prctl(.GET_NAME, .{@ptrToInt(buffer.ptr)}); - switch (@intToEnum(os.E, err)) { - .SUCCESS => return std.mem.sliceTo(buffer, 0), - else => |e| return os.unexpectedErrno(e), + .linux => if (use_pthreads) { + if (self.getHandle() == std.c.pthread_self()) { + // Get the name of the calling thread (no thread id required). + const err = try os.prctl(.GET_NAME, .{@ptrToInt(buffer.ptr)}); + switch (@intToEnum(os.E, err)) { + .SUCCESS => return std.mem.sliceTo(buffer, 0), + else => |e| return os.unexpectedErrno(e), + } + } else { + if (target.abi.isMusl()) { + // musl doesn't provide pthread_getname_np and there's no way to retrieve the thread id of an arbitrary thread. + return error.Unsupported; + } + const err = std.c.pthread_getname_np(self.getHandle(), buffer.ptr, max_name_len + 1); + switch (err) { + .SUCCESS => return std.mem.sliceTo(buffer, 0), + .RANGE => unreachable, + else => |e| return os.unexpectedErrno(e), + } } - } else if (!use_pthreads) { + } else { var buf: [32]u8 = undefined; const path = try std.fmt.bufPrint(&buf, "/proc/self/task/{d}/comm", .{self.getHandle()}); @@ -195,9 +200,6 @@ pub fn getName(self: Thread, buffer_ptr: *[max_name_len:0]u8) GetNameError!?[]co const data_len = try file.reader().readAll(buffer_ptr[0 .. max_name_len + 1]); return if (data_len >= 1) buffer[0 .. data_len - 1] else null; - } else { - // musl doesn't provide pthread_getname_np and there's no way to retrieve the thread id of an arbitrary thread. - return error.Unsupported; }, .windows => { const buf_capacity = @sizeOf(os.windows.UNICODE_STRING) + (@sizeOf(u16) * max_name_len); |
