1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
|
/*
* blogc: A blog compiler.
* Copyright (C) 2016 Rafael G. Martins <rafael@rafaelmartins.eng.br>
*
* This program can be distributed under the terms of the BSD License.
* See the file LICENSE.
*/
#include <errno.h>
#include <pthread.h>
#include <stdbool.h>
#include <stdlib.h>
#include <string.h>
#include "error.h"
#include "utils.h"
#include "thread-pool.h"
typedef struct {
bc_threadpool_t *pool;
pthread_t thread;
size_t id;
} thread_info_t;
typedef struct {
bc_threadpool_t *pool;
void *user_data;
} job_t;
static void*
worker(void *arg)
{
thread_info_t *info = arg;
printf("aqui\n");
while (1) {
job_t *job = NULL;
pthread_mutex_lock(&(info->pool->jobs_mutex));
info->pool->jobs = bc_slist_pop(info->pool->jobs, (void**) &job);
pthread_mutex_unlock(&(info->pool->jobs_mutex));
if (job != NULL)
printf("dentro[%d]: %s\n", info->id, job);
}
return NULL;
}
bc_threadpool_t*
bc_threadpool_new(bc_threadpool_func_t func, size_t max_threads,
void *user_data, bc_error_t **err)
{
if (err != NULL && *err != NULL)
return NULL;
bc_threadpool_t *rv = bc_malloc(sizeof(bc_threadpool_t));
rv->jobs = NULL;
pthread_mutex_init(&(rv->jobs_mutex), NULL);
rv->threads = NULL;
rv->func = func;
rv->max_threads = max_threads;
rv->user_data = user_data;
int e;
for (size_t i = 0; i < rv->max_threads; i++) {
thread_info_t *info = bc_malloc(sizeof(thread_info_t));
info->pool = rv;
info->id = i+1;
if (0 != (e = pthread_create(&(info->thread), NULL, worker, info))) {
*err = bc_error_new_printf(BC_ERROR_THREADPOOL,
"Failed to create pool: %s", strerror(e));
// FIXME: kill any existing threads. currently leaking.
free(info);
return NULL;
}
rv->threads = bc_slist_append(rv->threads, info);
}
return rv;
}
void
bc_threadpool_append(bc_threadpool_t *pool, void *user_data)
{
pthread_mutex_lock(&(pool->jobs_mutex));
pool->jobs = bc_slist_append(pool->jobs, user_data);
pthread_mutex_unlock(&(pool->jobs_mutex));
}
|
