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build runner: more useful failure handling for fanotify_mark

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This commit is contained in:
Andrew Kelley 2024-07-09 23:13:28 -07:00
parent dcbb3aa1f3
commit 0994e22a64
1 changed files with 5 additions and 3 deletions
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8
lib/compiler/build_runner.zig
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@ -416,10 +416,12 @@ pub fn main() !void {
const reaction_set = rs: {
const gop = try w.dir_table.getOrPut(gpa, path);
if (!gop.found_existing) {
try std.posix.fanotify_mark(w.fan_fd, .{
std.posix.fanotify_mark(w.fan_fd, .{
.ADD = true,
.ONLYDIR = true,
}, Watch.fan_mask, path.root_dir.handle.fd, path.subPathOpt());
}, Watch.fan_mask, path.root_dir.handle.fd, path.subPathOpt()) catch |err| {
fatal("unable to watch {}: {s}", .{ path, @errorName(err) });
};
const dir_handle = try Watch.getDirHandle(gpa, path);
try w.handle_table.putNoClobber(gpa, dir_handle, .{});
@ -489,7 +491,7 @@ pub fn main() !void {
.revents = undefined,
},
};
var caption_buf: [40]u8 = undefined;
var caption_buf: [std.Progress.Node.max_name_len]u8 = undefined;
const caption = std.fmt.bufPrint(&caption_buf, "Watching {d} Directories", .{
w.dir_table.entries.len,
}) catch &caption_buf;