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main.c
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1 #include <stdio.h>
2 #include <stdlib.h>
3 #include <unistd.h>
4 
5 #include <uv.h>
6 
7 #define FIB_UNTIL 25
8 uv_loop_t *loop;
9 uv_work_t fib_reqs[FIB_UNTIL];
10 
11 long fib_(long t) {
12  if (t == 0 || t == 1)
13  return 1;
14  else
15  return fib_(t-1) + fib_(t-2);
16 }
17 
18 void fib(uv_work_t *req) {
19  int n = *(int *) req->data;
20  if (random() % 2)
21  sleep(1);
22  else
23  sleep(3);
24  long fib = fib_(n);
25  fprintf(stderr, "%dth fibonacci is %lu\n", n, fib);
26 }
27 
28 void after_fib(uv_work_t *req, int status) {
29  if (status == UV_ECANCELED)
30  fprintf(stderr, "Calculation of %d cancelled.\n", *(int *) req->data);
31 }
32 
33 void signal_handler(uv_signal_t *req, int signum)
34 {
35  printf("Signal received!\n");
36  int i;
37  for (i = 0; i < FIB_UNTIL; i++) {
38  uv_cancel((uv_req_t*) &fib_reqs[i]);
39  }
40  uv_signal_stop(req);
41 }
42 
43 int main() {
44  loop = uv_default_loop();
45 
46  int data[FIB_UNTIL];
47  int i;
48  for (i = 0; i < FIB_UNTIL; i++) {
49  data[i] = i;
50  fib_reqs[i].data = (void *) &data[i];
51  uv_queue_work(loop, &fib_reqs[i], fib, after_fib);
52  }
53 
54  uv_signal_t sig;
55  uv_signal_init(loop, &sig);
56  uv_signal_start(&sig, signal_handler, SIGINT);
57 
58  return uv_run(loop, UV_RUN_DEFAULT);
59 }
i
lzma_index ** i
Definition: index.h:629
printf
_Use_decl_annotations_ int __cdecl printf(const char *const _Format,...)
Definition: cs_driver.c:93
req
static static sync static getppid static getegid const char static filename char static len const char char static bufsiz static mask static vfork const void static prot static getpgrp const char static swapflags static arg static fd static protocol static who struct sockaddr static addrlen static backlog struct timeval struct timezone static tz const struct iovec static count static mode const void const struct sockaddr static tolen const char static pathname void static offset struct stat static buf void long static basep static whence static length const void static len static semflg const void static shmflg const struct timespec req
Definition: sflib.h:128
main
int main(int argc, const char **argv)
Definition: main.c:340
status
static const char struct stat static buf struct stat static buf static vhangup int status
Definition: sflib.h:145
signum
static static fork const void static count static fd const char static mode const char static pathname const char static path const char static dev const char static group static getpid static getuid void void static data static pause const char static mode static sync const char const char static newpath const char static pathname unsigned long static filedes void static end_data_segment signum
Definition: sflib.h:79
n
int n
Definition: mipsasm.c:19
uv_loop_s
Definition: uv.h:1780
uv_req_s
Definition: uv.h:407
uv_signal_s
Definition: uv.h:1574
uv_work_s
Definition: uv.h:1066
loop
uv_loop_t * loop
Definition: main.c:7
fib_
long fib_(long t)
Definition: main.c:11
signal_handler
void signal_handler(uv_signal_t *req, int signum)
Definition: main.c:33
FIB_UNTIL
#define FIB_UNTIL
Definition: main.c:7
fib_reqs
uv_work_t fib_reqs[FIB_UNTIL]
Definition: main.c:9
fib
void fib(uv_work_t *req)
Definition: main.c:18
after_fib
void after_fib(uv_work_t *req, int status)
Definition: main.c:28
UV_RUN_DEFAULT
@ UV_RUN_DEFAULT
Definition: uv.h:255
uv_signal_start
UV_EXTERN int uv_signal_start(uv_signal_t *handle, uv_signal_cb signal_cb, int signum)
Definition: signal.c:340
uv_run
UV_EXTERN int uv_run(uv_loop_t *, uv_run_mode mode)
Definition: core.c:365
uv_signal_stop
UV_EXTERN int uv_signal_stop(uv_signal_t *handle)
Definition: signal.c:513
uv_queue_work
UV_EXTERN int uv_queue_work(uv_loop_t *loop, uv_work_t *req, uv_work_cb work_cb, uv_after_work_cb after_work_cb)
Definition: threadpool.c:338
uv_default_loop
UV_EXTERN uv_loop_t * uv_default_loop(void)
Definition: uv-common.c:763
uv_cancel
UV_EXTERN int uv_cancel(uv_req_t *req)
Definition: threadpool.c:358
uv_signal_init
UV_EXTERN int uv_signal_init(uv_loop_t *loop, uv_signal_t *handle)
Definition: signal.c:319
if
if(dbg->bits==RZ_SYS_BITS_64)
Definition: windows-arm64.h:4