48 lines
1.4 KiB
Zig
48 lines
1.4 KiB
Zig
const std = @import("std");
|
|
|
|
const Hook = *const fn (i32, i32) callconv(.c) i32;
|
|
|
|
pub fn main() !void {
|
|
std.log.debug("setting up watches...", .{});
|
|
|
|
var event: std.os.linux.inotify_event = undefined;
|
|
const event_buf = std.mem.asBytes(&event);
|
|
|
|
const fd: i32 = @intCast(std.os.linux.inotify_init1(std.os.linux.IN.NONBLOCK));
|
|
defer _ = std.os.linux.close(fd);
|
|
|
|
_ = std.os.linux.inotify_add_watch(fd, "./libroot.so", std.os.linux.IN.MODIFY);
|
|
|
|
std.log.debug("loading dylib...", .{});
|
|
|
|
var lib = try std.DynLib.open("./libroot.so");
|
|
defer lib.close();
|
|
|
|
var hook: Hook = lib.lookup(Hook, "hook").?;
|
|
|
|
var polls = [_]std.os.linux.pollfd{
|
|
.{ .fd = fd, .events = std.os.linux.POLL.IN, .revents = 0 },
|
|
};
|
|
|
|
while (true) {
|
|
const eps = std.os.linux.poll(&polls, polls.len, 0);
|
|
std.log.debug("eps: {d}", .{eps});
|
|
if (eps > 0) {
|
|
std.log.debug("event!", .{});
|
|
while (std.os.linux.read(fd, event_buf.ptr, event_buf.len) > 0) {
|
|
std.log.debug("consume.", .{});
|
|
}
|
|
std.log.debug("reloading.", .{});
|
|
lib.close();
|
|
lib = try std.DynLib.open("./libroot.so");
|
|
hook = lib.lookup(Hook, "hook").?;
|
|
}
|
|
|
|
std.log.debug("update", .{});
|
|
const res = hook(5, 7);
|
|
std.log.debug("hook(5, 7) = {d}", .{res});
|
|
|
|
std.time.sleep(std.time.ns_per_s);
|
|
}
|
|
}
|