[libc] move clock_time to time.

Author: BernardXiong

components/libc/compilers/newlib/syscalls.c

@@ -27,9 +27,6 @@
 
 int pthread_system_init(void)
 {
-    /* initialize clock and time */
-    clock_time_system_init();
-
     /* initialize key area */
     pthread_key_system_init();
     /* initialize posix mqueue */

components/libc/pthreads/pthread.c

@@ -276,35 +276,4 @@ int pthread_barrier_init(pthread_barrier_t           *barrier,
 
 int pthread_barrier_wait(pthread_barrier_t *barrier);
 
-/* posix clock and timer */
-#define MILLISECOND_PER_SECOND  1000UL
-#define MICROSECOND_PER_SECOND  1000000UL
-#define NANOSECOND_PER_SECOND   1000000000UL
-
-#define MILLISECOND_PER_TICK    (MILLISECOND_PER_SECOND / RT_TICK_PER_SECOND)
-#define MICROSECOND_PER_TICK    (MICROSECOND_PER_SECOND / RT_TICK_PER_SECOND)
-#define NANOSECOND_PER_TICK     (NANOSECOND_PER_SECOND  / RT_TICK_PER_SECOND)
-
-#ifndef CLOCK_REALTIME
-#define CLOCK_REALTIME      1
-#endif
-
-#define CLOCK_CPUTIME_ID    2
-
-#ifndef CLOCK_PROCESS_CPUTIME_ID
-#define CLOCK_PROCESS_CPUTIME_ID CLOCK_CPUTIME_ID
-#endif
-#ifndef CLOCK_THREAD_CPUTIME_ID
-#define CLOCK_THREAD_CPUTIME_ID  CLOCK_CPUTIME_ID
 #endif
-
-#ifndef CLOCK_MONOTONIC
-#define CLOCK_MONOTONIC     4
-#endif
-
-int clock_getres  (clockid_t clockid, struct timespec *res);
-int clock_gettime (clockid_t clockid, struct timespec *tp);
-int clock_settime (clockid_t clockid, const struct timespec *tp);
-
-#endif
-

components/libc/pthreads/pthread.h

@@ -83,7 +83,7 @@ rt_inline _pthread_data_t *_pthread_get_data(pthread_t thread)
 }
 
 int clock_time_to_tick(const struct timespec *time);
-void clock_time_system_init(void);
+
 void posix_mq_system_init(void);
 void posix_sem_system_init(void);
 void pthread_key_system_init(void);

components/libc/pthreads/pthread_internal.h

@@ -6,7 +6,7 @@ cwd = GetCurrentDir()
 src = Glob('*.c') + Glob('*.cpp')
 CPPPATH = [cwd]
 
-group = DefineGroup('libc', src, 
-    depend = ['RT_USING_LIBC', 'RT_USING_POSIX_TIMER'], CPPPATH = CPPPATH)
+group = DefineGroup('pthreads', src, 
+    depend = ['RT_USING_PTHREADS'], CPPPATH = CPPPATH)
 
 Return('group')

components/libc/timer/SConscript renamed to components/libc/time/SConscript

@@ -24,10 +24,13 @@
  */
 
 #include <rtthread.h>
+#include <rtdevice.h>
 #include <pthread.h>
 
+#include "clock_time.h"
+
 struct timeval _timevalue;
-void clock_time_system_init()
+int clock_time_system_init()
 {
     time_t time;
     rt_tick_t tick;
@@ -46,7 +49,10 @@ void clock_time_system_init()
 
     _timevalue.tv_usec = (tick%RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK;
     _timevalue.tv_sec = time - tick/RT_TICK_PER_SECOND - 1;
+
+    return 0;
 }
+INIT_COMPONENT_EXPORT(clock_time_system_init);
 
 int clock_time_to_tick(const struct timespec *time)
 {
@@ -83,38 +89,80 @@ RTM_EXPORT(clock_time_to_tick);
 
 int clock_getres(clockid_t clockid, struct timespec *res)
 {
-    if ((clockid != CLOCK_REALTIME) || (res == RT_NULL))
+    int ret = 0;
+
+    if (res == RT_NULL)
     {
         rt_set_errno(EINVAL);
-
         return -1;
     }
 
-    res->tv_sec = 0;
-    res->tv_nsec = NANOSECOND_PER_SECOND/RT_TICK_PER_SECOND;
+    switch (clockid)
+    {
+    case CLOCK_REALTIME:
+        res->tv_sec = 0;
+        res->tv_nsec = NANOSECOND_PER_SECOND/RT_TICK_PER_SECOND;
+        break;
+
+#ifdef RT_USING_CPUTIME
+    case CLOCK_CPUTIME_ID:
+        res->tv_sec  = 0;
+        res->tv_nsec = clock_cpu_getres();
+        break;
+#endif
+
+    default:
+        ret = -1;
+        rt_set_errno(EINVAL);
+        break;
+    }
 
-    return 0;
+    return ret;
 }
 RTM_EXPORT(clock_getres);
 
 int clock_gettime(clockid_t clockid, struct timespec *tp)
 {
-    rt_tick_t tick;
+    int ret = 0;
 
-    if ((clockid != CLOCK_REALTIME) || (tp == RT_NULL))
+    if (tp == RT_NULL)
     {
         rt_set_errno(EINVAL);
-
         return -1;
     }
 
-    /* get tick */
-    tick = rt_tick_get();
+    switch (clockid)
+    {
+    case CLOCK_REALTIME:
+        {
+            /* get tick */
+            int tick = rt_tick_get();
 
-    tp->tv_sec = _timevalue.tv_sec + tick / RT_TICK_PER_SECOND;
-    tp->tv_nsec = (_timevalue.tv_usec + (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK) * 1000;
+            tp->tv_sec  = _timevalue.tv_sec + tick / RT_TICK_PER_SECOND;
+            tp->tv_nsec = (_timevalue.tv_usec + (tick % RT_TICK_PER_SECOND) * MICROSECOND_PER_TICK) * 1000;
+        }
+        break;
 
-    return 0;
+#ifdef RT_USING_CPUTIME
+    case CLOCK_CPUTIME_ID:
+        {
+            float unit = 0;
+            long long cpu_tick;
+
+            unit = clock_cpu_getres();
+            cpu_tick = clock_cpu_gettime();
+
+            tp->tv_sec  = ((int)(cpu_tick * unit)) / NANOSECOND_PER_SECOND;
+            tp->tv_nsec = ((int)(cpu_tick * unit)) % NANOSECOND_PER_SECOND;
+        }
+        break;
+#endif
+    default:
+        rt_set_errno(EINVAL);
+        ret = -1;
+    }
+
+    return ret;
 }
 RTM_EXPORT(clock_gettime);
 

components/libc/pthreads/clock_time.c renamed to components/libc/time/clock_time.c

@@ -0,0 +1,58 @@
+/*
+ * File      : clock_time.h
+ * This file is part of RT-Thread RTOS
+ * COPYRIGHT (C) 2006 - 2017, RT-Thread Development Team
+ *
+ *  This program is free software; you can redistribute it and/or modify
+ *  it under the terms of the GNU General Public License as published by
+ *  the Free Software Foundation; either version 2 of the License, or
+ *  (at your option) any later version.
+ *
+ *  This program is distributed in the hope that it will be useful,
+ *  but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ *  GNU General Public License for more details.
+ *
+ *  You should have received a copy of the GNU General Public License along
+ *  with this program; if not, write to the Free Software Foundation, Inc.,
+ *  51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
+ *
+ * Change Logs:
+ * Date           Author       Notes
+ * 2017-12-31     Bernard      the first version
+ */
+
+#ifndef CLOCK_TIME_H__
+#define CLOCK_TIME_H__
+
+/* posix clock and timer */
+#define MILLISECOND_PER_SECOND  1000UL
+#define MICROSECOND_PER_SECOND  1000000UL
+#define NANOSECOND_PER_SECOND   1000000000UL
+
+#define MILLISECOND_PER_TICK    (MILLISECOND_PER_SECOND / RT_TICK_PER_SECOND)
+#define MICROSECOND_PER_TICK    (MICROSECOND_PER_SECOND / RT_TICK_PER_SECOND)
+#define NANOSECOND_PER_TICK     (NANOSECOND_PER_SECOND  / RT_TICK_PER_SECOND)
+
+#ifndef CLOCK_REALTIME
+#define CLOCK_REALTIME      1
+#endif
+
+#define CLOCK_CPUTIME_ID    2
+
+#ifndef CLOCK_PROCESS_CPUTIME_ID
+#define CLOCK_PROCESS_CPUTIME_ID CLOCK_CPUTIME_ID
+#endif
+#ifndef CLOCK_THREAD_CPUTIME_ID
+#define CLOCK_THREAD_CPUTIME_ID  CLOCK_CPUTIME_ID
+#endif
+
+#ifndef CLOCK_MONOTONIC
+#define CLOCK_MONOTONIC     4
+#endif
+
+int clock_getres  (clockid_t clockid, struct timespec *res);
+int clock_gettime (clockid_t clockid, struct timespec *tp);
+int clock_settime (clockid_t clockid, const struct timespec *tp);
+
+#endif