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comparison third_party/libuv/docs/code/idle-compute/main.c @ 173:827c6ac504cd hg-web

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Merged in default here.
author MrJuneJune <me@mrjunejune.com>
date Mon, 19 Jan 2026 18:59:10 -0800
parents 948de3f54cea
children
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151:c033667da5f9 173:827c6ac504cd
1 #include <stdio.h>
2
3 #include <uv.h>
4
5 uv_loop_t *loop;
6 uv_fs_t stdin_watcher;
7 uv_idle_t idler;
8 char buffer[1024];
9
10 void crunch_away(uv_idle_t* handle) {
11 // Compute extra-terrestrial life
12 // fold proteins
13 // computer another digit of PI
14 // or similar
15 fprintf(stderr, "Computing PI...\n");
16 // just to avoid overwhelming your terminal emulator
17 uv_idle_stop(handle);
18 }
19
20 void on_type(uv_fs_t *req) {
21 if (stdin_watcher.result > 0) {
22 buffer[stdin_watcher.result] = '\0';
23 printf("Typed %s\n", buffer);
24
25 uv_buf_t buf = uv_buf_init(buffer, 1024);
26 uv_fs_read(loop, &stdin_watcher, 0, &buf, 1, -1, on_type);
27 uv_idle_start(&idler, crunch_away);
28 }
29 else if (stdin_watcher.result < 0) {
30 fprintf(stderr, "error opening file: %s\n", uv_strerror(req->result));
31 }
32 }
33
34 int main() {
35 loop = uv_default_loop();
36
37 uv_idle_init(loop, &idler);
38
39 uv_buf_t buf = uv_buf_init(buffer, 1024);
40 uv_fs_read(loop, &stdin_watcher, 0, &buf, 1, -1, on_type);
41 uv_idle_start(&idler, crunch_away);
42 return uv_run(loop, UV_RUN_DEFAULT);
43 }