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2 * Copyright (c) Kongsberg Oil & Gas Technologies AS
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31\**************************************************************************/
32
33/* This file should only be included from condvar.c */
34
35#include <stdio.h>
36
37#include <Inventor/C/base/time.h>
38
39#include "threads/mutexp.h"
40
41static int
42internal_condvar_struct_init(cc_condvar * condvar_struct)
43{
44  int status = pthread_cond_init(&(condvar_struct->pthread.condid), NULL);
45  if (status != 0) {
46    if (COIN_DEBUG)
47      cc_debugerror_post("internal_condvar_struct_init",
48                         "pthread_cond_init() error: %d\n", status);
49    return CC_ERROR;
50  }
51  return CC_OK;
52}
53
54static int
55internal_condvar_struct_clean(cc_condvar * condvar_struct)
56{
57  int status;
58  int ret = CC_OK;
59  status = pthread_cond_destroy(&(condvar_struct->pthread.condid));
60  if (status != 0) {
61    if (COIN_DEBUG)
62      cc_debugerror_post("internal_condvar_struct_clean",
63                         "pthread_cond_destroy() error: %d\n", status);
64    ret = CC_ERROR;
65  }
66  return ret;
67}
68
69static int
70internal_condvar_wait(cc_condvar * condvar, cc_mutex * mutex)
71{
72  int status;
73
74  status = pthread_cond_wait(&condvar->pthread.condid,
75                             &mutex->pthread.mutexid);
76  if (status != 0) {
77    if (COIN_DEBUG)
78      cc_debugerror_post("internal_condvar_wait",
79                         "pthread_cond_wait() error: %d\n", status);
80    return CC_ERROR;
81  }
82  return CC_OK;
83}
84
85static int
86internal_condvar_timed_wait(cc_condvar * condvar, cc_mutex * mutex, cc_time period)
87{
88  struct timespec timeout;
89  cc_time when;
90  int status, ret;
91  double sec;
92
93  when = cc_time_gettimeofday() + period;
94  sec = floor(when);
95  timeout.tv_sec = (int) sec;
96#if defined(HAVE_PTHREAD_TIMESPEC_NSEC)
97  timeout.tv_nsec = (int) ((when - sec) * 1000000000.0);
98#else
99  timeout.tv_usec = (int) ((when - sec) * 1000000.0);
100#endif
101  status = pthread_cond_timedwait(&condvar->pthread.condid,
102                                  &mutex->pthread.mutexid, &timeout);
103  ret = CC_OK;
104  if (status != 0) {
105    if (status == ETIMEDOUT) {
106      ret = CC_TIMEOUT;
107    }
108    else {
109      ret = CC_ERROR;
110      if (COIN_DEBUG) {
111        cc_debugerror_post("internal_condvar_timed_wait",
112                           "pthread_cond_timedwait() error: %d", status);
113        switch (status) {
114        case EINTR: cc_debugerror_post("internal_condvar_timed_wait",
115                                       "EINTR\n"); break;
116        case EBUSY: cc_debugerror_post("internal_condvar_timed_wait",
117                                       "EBUSY\n"); break;
118        default: cc_debugerror_post("internal_condvar_timed_wait",
119                                    "default\n"); break;
120        }
121      }
122    }
123  }
124  return ret;
125}
126
127static int
128internal_condvar_wake_one(cc_condvar * condvar)
129{
130  int status;
131  status = pthread_cond_signal(&condvar->pthread.condid);
132  if (status != 0) {
133    if (COIN_DEBUG)
134      cc_debugerror_post("internal_condvar_wake_one",
135                         "pthread_cond_signal() error: %d\n", status);
136    return CC_ERROR;
137  }
138  return CC_OK;
139}
140
141static int
142internal_condvar_wake_all(cc_condvar * condvar)
143{
144  int status = pthread_cond_broadcast(&condvar->pthread.condid);
145  if (status != 0) {
146    if (COIN_DEBUG)
147      cc_debugerror_post("internal_condvar_wake_all",
148                         "pthread_cond_broadcast() error: %d\n", status);
149    return CC_ERROR;
150  }
151  return CC_OK;
152}
153