zzstoatzz.io
this repo has no description
coral.waow.tech
add persistence, graceful shutdown, and UI refresh
backend:
- init SQLite + load/save entity graph state
- SIGTERM handler for graceful shutdown on fly.io
- periodic saver thread (every 30s)
site:
- updated copy (turbostream-powered, clusters)
- simplified stats display
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
+113
-56
+7
backend/build.zig
+7
backend/build.zig
···
9
.optimize = optimize,
10
});
11
12
const exe = b.addExecutable(.{
13
.name = "coral",
14
.root_module = b.createModule(.{
···
17
.optimize = optimize,
18
.imports = &.{
19
.{ .name = "websocket", .module = websocket.module("websocket") },
20
},
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}),
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});
···
42
.optimize = optimize,
43
.imports = &.{
44
.{ .name = "websocket", .module = websocket.module("websocket") },
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},
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}),
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});
···
9
.optimize = optimize,
10
});
11
12
+
const zqlite = b.dependency("zqlite", .{
13
+
.target = target,
14
+
.optimize = optimize,
15
+
});
16
+
17
const exe = b.addExecutable(.{
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.name = "coral",
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.root_module = b.createModule(.{
···
22
.optimize = optimize,
23
.imports = &.{
24
.{ .name = "websocket", .module = websocket.module("websocket") },
25
+
.{ .name = "zqlite", .module = zqlite.module("zqlite") },
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},
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}),
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});
···
48
.optimize = optimize,
49
.imports = &.{
50
.{ .name = "websocket", .module = websocket.module("websocket") },
51
+
.{ .name = "zqlite", .module = zqlite.module("zqlite") },
52
},
53
}),
54
});
+4
backend/build.zig.zon
+4
backend/build.zig.zon
···
8
.url = "https://github.com/karlseguin/websocket.zig/archive/refs/heads/master.tar.gz",
9
.hash = "websocket-0.1.0-ZPISdRNzAwAGszh62EpRtoQxu8wb1MSMVI6Ow0o2dmyJ",
10
},
11
+
.zqlite = .{
12
+
.url = "https://github.com/karlseguin/zqlite.zig/archive/refs/heads/master.tar.gz",
13
+
.hash = "zqlite-0.0.0-RWLaY_y_mADh2LdbDrG_2HT2dBAcsAR8Jig_7-dOJd0B",
14
+
},
15
},
16
.paths = .{
17
"build.zig",
+9
backend/fly.toml
+9
backend/fly.toml
···
22
internal_port = 3001
23
protocol = "tcp"
24
25
+
[services.concurrency]
26
+
type = "connections"
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+
hard_limit = 1000
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+
soft_limit = 500
29
+
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[[services.ports]]
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port = 3001
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handlers = ["tls"]
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+
34
+
[mounts]
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+
source = "coral_data"
36
+
destination = "/data"
37
38
[[vm]]
39
memory = '256mb'
+79
backend/src/main.zig
+79
backend/src/main.zig
···
6
const lattice = @import("lattice.zig");
7
const http = @import("http.zig");
8
const ws_server = @import("ws_server.zig");
9
10
const log = std.log.scoped(.main);
11
12
const MAX_HTTP_WORKERS = 8;
13
const SOCKET_TIMEOUT_SECS = 30;
14
15
pub fn main() !void {
16
var gpa = std.heap.GeneralPurposeAllocator(.{
···
21
22
// init world with three lattices (32, 128, 512)
23
lattice.init();
24
25
// init websocket client tracking
26
ws_server.init(allocator);
···
83
try posix.setsockopt(fd, posix.SOL.SOCKET, posix.SO.SNDTIMEO, &timeout);
84
}
85
86
test {
87
_ = @import("lattice.zig");
88
_ = @import("http.zig");
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_ = @import("ws_server.zig");
90
_ = @import("entities.zig");
91
}
···
6
const lattice = @import("lattice.zig");
7
const http = @import("http.zig");
8
const ws_server = @import("ws_server.zig");
9
+
const entity_graph = @import("entity_graph.zig");
10
+
const db = @import("db.zig");
11
12
const log = std.log.scoped(.main);
13
14
const MAX_HTTP_WORKERS = 8;
15
const SOCKET_TIMEOUT_SECS = 30;
16
+
const SAVE_INTERVAL_MS = 30_000; // save every 30 seconds
17
+
const DB_PATH = "/data/coral.db";
18
+
19
+
// shutdown flag for graceful termination
20
+
var shutdown_requested = std.atomic.Value(bool).init(false);
21
22
pub fn main() !void {
23
var gpa = std.heap.GeneralPurposeAllocator(.{
···
28
29
// init world with three lattices (32, 128, 512)
30
lattice.init();
31
+
32
+
// init entity graph config from env vars
33
+
entity_graph.initConfig();
34
+
35
+
// init SQLite database for persistence
36
+
db.init(DB_PATH) catch |err| {
37
+
log.warn("failed to init database: {}, state won't persist", .{err});
38
+
};
39
+
40
+
// load persisted graph state from SQLite
41
+
db.loadState(&entity_graph.graph) catch |err| {
42
+
log.warn("failed to load state from db: {}, starting fresh", .{err});
43
+
};
44
+
45
+
// setup SIGTERM handler for graceful shutdown
46
+
const sigterm_action = posix.Sigaction{
47
+
.handler = .{ .handler = handleSigterm },
48
+
.mask = posix.sigemptyset(),
49
+
.flags = 0,
50
+
};
51
+
posix.sigaction(posix.SIG.TERM, &sigterm_action, null);
52
+
53
+
// spawn periodic saver thread
54
+
const saver_thread = try Thread.spawn(.{}, periodicSaver, .{});
55
+
saver_thread.detach();
56
57
// init websocket client tracking
58
ws_server.init(allocator);
···
115
try posix.setsockopt(fd, posix.SOL.SOCKET, posix.SO.SNDTIMEO, &timeout);
116
}
117
118
+
fn handleSigterm(_: c_int) callconv(.c) void {
119
+
log.info("received SIGTERM, initiating graceful shutdown", .{});
120
+
shutdown_requested.store(true, .release);
121
+
}
122
+
123
+
fn periodicSaver() void {
124
+
while (!shutdown_requested.load(.acquire)) {
125
+
// check shutdown every second, save every SAVE_INTERVAL_MS
126
+
var elapsed_ms: u64 = 0;
127
+
while (elapsed_ms < SAVE_INTERVAL_MS and !shutdown_requested.load(.acquire)) {
128
+
Thread.sleep(1000 * std.time.ns_per_ms); // 1 second
129
+
elapsed_ms += 1000;
130
+
}
131
+
132
+
// save state to SQLite
133
+
entity_graph.graph.mutex.lock();
134
+
db.saveState(&entity_graph.graph) catch |err| {
135
+
log.err("failed to save state: {}", .{err});
136
+
};
137
+
entity_graph.graph.mutex.unlock();
138
+
139
+
// prune posts: keep top N per entity, delete orphans
140
+
db.pruneEntityPosts() catch |err| {
141
+
log.warn("failed to prune entity posts: {}", .{err});
142
+
};
143
+
db.pruneOrphanPosts() catch |err| {
144
+
log.warn("failed to prune orphan posts: {}", .{err});
145
+
};
146
+
147
+
if (shutdown_requested.load(.acquire)) {
148
+
log.info("graceful shutdown: state saved, exiting", .{});
149
+
posix.exit(0);
150
+
}
151
+
}
152
+
153
+
// final save on shutdown
154
+
log.info("shutdown requested, saving final state", .{});
155
+
entity_graph.graph.mutex.lock();
156
+
db.saveState(&entity_graph.graph) catch |err| {
157
+
log.err("failed to save final state: {}", .{err});
158
+
};
159
+
entity_graph.graph.mutex.unlock();
160
+
log.info("graceful shutdown complete", .{});
161
+
posix.exit(0);
162
+
}
163
+
164
test {
165
_ = @import("lattice.zig");
166
_ = @import("http.zig");
167
_ = @import("ws_server.zig");
168
_ = @import("entities.zig");
169
+
_ = @import("entity_graph.zig");
170
}
+14
-56
site/index.html
+14
-56
site/index.html
···
7
8
<!-- open graph -->
9
<meta property="og:title" content="coral">
10
-
<meta property="og:description" content="named entity percolation from the Bluesky firehose">
11
<meta property="og:image" content="https://coral-8hh.pages.dev/og.png">
12
<meta property="og:url" content="https://coral-8hh.pages.dev">
13
<meta property="og:type" content="website">
···
15
<!-- twitter -->
16
<meta name="twitter:card" content="summary_large_image">
17
<meta name="twitter:title" content="coral">
18
-
<meta name="twitter:description" content="named entity percolation from the Bluesky firehose">
19
<meta name="twitter:image" content="https://coral-8hh.pages.dev/og.png">
20
21
<link rel="icon" type="image/svg+xml" href="favicon.svg">
···
38
39
<div class="info">
40
<p class="description">
41
-
Named entities (people, places, orgs) extracted from Bluesky posts
42
-
hash to grid positions. Near <strong>~59%</strong> density, isolated
43
-
clusters merge into a spanning network — a phase transition.
44
</p>
45
46
-
<div class="density-meter">
47
-
<div class="density-bar">
48
-
<div class="density-fill" id="density-fill"></div>
49
-
<div class="density-critical"></div>
50
-
</div>
51
-
<div class="density-labels">
52
-
<span>0%</span>
53
-
<span class="critical-label">59%</span>
54
-
<span>100%</span>
55
-
</div>
56
-
</div>
57
-
58
-
<div class="scaling-curve" title="universal scaling function: (p - 0.593) × L^(3/4)">
59
-
<canvas id="scaling-canvas" width="260" height="80"></canvas>
60
-
<div class="scaling-label">
61
-
<span>x = <span id="scaling-x">--</span></span>
62
-
</div>
63
-
</div>
64
-
65
-
<div class="status-row">
66
-
<div class="big-stat" title="does a cluster connect top to bottom?">
67
-
<span class="big-value" id="spanning">--</span>
68
-
<span class="big-label">spanning</span>
69
-
</div>
70
-
<div class="big-stat" title="sites in the largest connected cluster">
71
-
<span class="big-value" id="largest">--</span>
72
-
<span class="big-label">largest cluster</span>
73
</div>
74
-
</div>
75
-
76
-
<div class="mini-stats">
77
-
<div class="mini-stat" title="named entities extracted from posts">
78
-
<span class="mini-value" id="posts">--</span>
79
-
<span class="mini-label">entities</span>
80
</div>
81
-
<div class="mini-stat" title="number of isolated connected components">
82
-
<span class="mini-value" id="clusters">--</span>
83
-
<span class="mini-label">clusters</span>
84
-
</div>
85
-
<div class="mini-stat" title="times the system crossed the percolation threshold">
86
-
<span class="mini-value" id="crossings">--</span>
87
-
<span class="mini-label">crossings</span>
88
</div>
89
</div>
90
···
97
<div class="section-label">live</div>
98
<div class="live-feed" id="live-feed"></div>
99
</div>
100
-
</div>
101
-
</div>
102
-
103
-
<div class="mini-grids">
104
-
<div class="mini-grid">
105
-
<canvas id="grid-32" data-size="32"></canvas>
106
-
<span>32x32 (70%)</span>
107
-
</div>
108
-
<div class="mini-grid">
109
-
<canvas id="grid-512" data-size="512"></canvas>
110
-
<span>512x512 (40%)</span>
111
</div>
112
</div>
113
···
7
8
<!-- open graph -->
9
<meta property="og:title" content="coral">
10
+
<meta property="og:description" content="real-time entity visualization powered by turbostream">
11
<meta property="og:image" content="https://coral-8hh.pages.dev/og.png">
12
<meta property="og:url" content="https://coral-8hh.pages.dev">
13
<meta property="og:type" content="website">
···
15
<!-- twitter -->
16
<meta name="twitter:card" content="summary_large_image">
17
<meta name="twitter:title" content="coral">
18
+
<meta name="twitter:description" content="real-time entity visualization powered by turbostream">
19
<meta name="twitter:image" content="https://coral-8hh.pages.dev/og.png">
20
21
<link rel="icon" type="image/svg+xml" href="favicon.svg">
···
38
39
<div class="info">
40
<p class="description">
41
+
Named entities extracted in real-time, powered by <a href="https://graze.social/docs/graze-turbostream" target="_blank">turbostream</a>.
42
+
Co-occurring entities form <strong>clusters</strong> as conversations develop.
43
</p>
44
45
+
<div class="stats-row">
46
+
<div class="stat" title="active entities on grid">
47
+
<span class="stat-value" id="active-count">--</span>
48
+
<span class="stat-label">active</span>
49
</div>
50
+
<div class="stat" title="connected clusters">
51
+
<span class="stat-value" id="clusters">--</span>
52
+
<span class="stat-label">clusters</span>
53
</div>
54
+
<div class="stat" title="entities in largest cluster">
55
+
<span class="stat-value" id="largest">--</span>
56
+
<span class="stat-label">largest</span>
57
</div>
58
</div>
59
···
66
<div class="section-label">live</div>
67
<div class="live-feed" id="live-feed"></div>
68
</div>
69
</div>
70
</div>
71