dist/nvi/common/pthread.c

   1 /*      $NetBSD$ */
   2
   3 /*-
   4  * Copyright (c) 2000
   5  *      Sven Verdoolaege.  All rights reserved.
   6  *
   7  * See the LICENSE file for redistribution information.
   8  */
   9
  10 #include "config.h"
  11
  12 #ifndef lint
  13 static const char sccsid[] = "Id: pthread.c,v 1.4 2000/07/22 14:52:37 skimo Exp (Berkeley) Date: 2000/07/22 14:52:37";
  14 #endif /* not lint */
  15
  16 #include <sys/types.h>
  17 #include <sys/queue.h>
  18
  19 #include <bitstring.h>
  20 #include <ctype.h>
  21 #include <errno.h>
  22 #include <stdio.h>
  23 #include <stdlib.h>
  24 #include <string.h>
  25 #include <unistd.h>
  26
  27 #include <pthread.h>
  28
  29 #include "../common/common.h"
  30
  31 static int vi_pthread_run __P((WIN *wp, void *(*fun)(void*), void *data));
  32 static int vi_pthread_lock_init __P((WIN *, void **));
  33 static int vi_pthread_lock_end __P((WIN *, void **));
  34 static int vi_pthread_lock_try __P((WIN *, void **));
  35 static int vi_pthread_lock_unlock __P((WIN *, void **));
  36
  37 /*
  38  * thread_init
  39  *
  40  * PUBLIC: void thread_init __P((GS *gp));
  41  */
  42 void
  43 thread_init(GS *gp)
  44 {
  45         gp->run = vi_pthread_run;
  46         gp->lock_init = vi_pthread_lock_init;
  47         gp->lock_end = vi_pthread_lock_end;
  48         gp->lock_try = vi_pthread_lock_try;
  49         gp->lock_unlock = vi_pthread_lock_unlock;
  50 }
  51
  52 static int
  53 vi_pthread_run(WIN *wp, void *(*fun)(void*), void *data)
  54 {
  55         pthread_t *t = malloc(sizeof(pthread_t));
  56         pthread_create(t, NULL, fun, data);
  57         return 0;
  58 }
  59
  60 static int
  61 vi_pthread_lock_init (WIN * wp, void **p)
  62 {
  63         pthread_mutex_t *mutex;
  64         int rc;
  65
  66         MALLOC_RET(NULL, mutex, pthread_mutex_t *, sizeof(*mutex));
  67
  68         if (rc = pthread_mutex_init(mutex, NULL)) {
  69                 free(mutex);
  70                 *p = NULL;
  71                 return rc;
  72         }
  73         *p = mutex;
  74         return 0;
  75 }
  76
  77 static int
  78 vi_pthread_lock_end (WIN * wp, void **p)
  79 {
  80         int rc;
  81         pthread_mutex_t *mutex = (pthread_mutex_t *)*p;
  82
  83         if (rc = pthread_mutex_destroy(mutex))
  84                 return rc;
  85
  86         free(mutex);
  87         *p = NULL;
  88         return 0;
  89 }
  90
  91 static int
  92 vi_pthread_lock_try (WIN * wp, void **p)
  93 {
  94         printf("try %p\n", *p);
  95         fflush(stdout);
  96         return 0;
  97         return pthread_mutex_trylock((pthread_mutex_t *)*p);
  98 }
  99
 100 static int
 101 vi_pthread_lock_unlock (WIN * wp, void **p)
 102 {
 103         printf("unlock %p\n", *p);
 104         return 0;
 105         return pthread_mutex_unlock((pthread_mutex_t *)*p);
 106 }
 107