Move std C time APIs to libc.time; Move posix.sys_time to simply posix.time...

Move std C time APIs to libc.time; Move posix.sys_time to simply posix.time for system-level things like timer_* clock_*.

Cython/Includes/libc/time.pxd

+# http://pubs.opengroup.org/onlinepubs/009695399/basedefs/sys/time.h.html
+
+from posix.signal cimport sigevent
+from posix.types cimport clock_t, clockid_t, suseconds_t, time_t, timer_t
+
+cdef extern from "time.h" nogil:
+
+    enum: CLOCKS_PER_SEC
+    enum: CLOCK_PROCESS_CPUTIME_ID
+    enum: CLOCK_THREAD_CPUTIME_ID
+
+    enum: CLOCK_REALTIME
+    enum: TIMER_ABSTIME
+    enum: CLOCK_MONOTONIC
+
+    # FreeBSD-specific clocks
+    enum: CLOCK_UPTIME
+    enum: CLOCK_UPTIME_PRECISE
+    enum: CLOCK_UPTIME_FAST
+    enum: CLOCK_REALTIME_PRECISE
+    enum: CLOCK_REALTIME_FAST
+    enum: CLOCK_MONOTONIC_PRECISE
+    enum: CLOCK_MONOTONIC_FAST
+    enum: CLOCK_SECOND
+
+    # Linux-specific clocks
+    enum: CLOCK_PROCESS_CPUTIME_ID
+    enum: CLOCK_THREAD_CPUTIME_ID
+    enum: CLOCK_MONOTONIC_RAW
+    enum: CLOCK_REALTIME_COARSE
+    enum: CLOCK_MONOTONIC_COARSE
+    enum: CLOCK_BOOTTIME
+    enum: CLOCK_REALTIME_ALARM
+    enum: CLOCK_BOOTTIME_ALARM
+
+    cdef struct timespec:
+        time_t tv_sec
+        long   tv_nsec
+
+    cdef struct itimerspec:
+        timespec it_interval
+        timespec it_value
+
+    cdef struct tm:
+        int  tm_sec
+        int  tm_min
+        int  tm_hour
+        int  tm_mday
+        int  tm_mon
+        int  tm_year
+        int  tm_wday
+        int  tm_yday
+        int  tm_isdst
+        char *tm_zone
+        long tm_gmtoff
+
+    char    *asctime(const tm *)
+    char    *asctime_r(const tm *, char *)
+    clock_t clock()
+    int     clock_getcpuclockid(pid_t, clockid_t *)
+    int     clock_getres(clockid_t, timespec *)
+    int     clock_gettime(clockid_t, timespec *)
+    int     clock_nanosleep(clockid_t, int, const timespec *, timespec *)
+    int     clock_settime(clockid_t, const timespec *)
+    char    *ctime(const time_t *)
+    char    *ctime_r(const time_t *, char *)
+    double  difftime(time_t, time_t)
+    tm      *getdate(const char *)
+    tm      *gmtime(const time_t *)
+    tm      *gmtime_r(const time_t *, tm *)
+    tm      *localtime(const time_t *)
+    tm      *localtime_r(const time_t *, tm *)
+    time_t  mktime(tm *)
+    int     nanosleep(const timespec *, timespec *)
+    size_t  strftime(char *, size_t, const char *, const tm *)
+    char    *strptime(const char *, const char *, tm *)
+    time_t  time(time_t *)
+    int     timer_create(clockid_t, sigevent *, timer_t *)
+    int     timer_delete(timer_t)
+    int     timer_gettime(timer_t, itimerspec *)
+    int     timer_getoverrun(timer_t)
+    int     timer_settime(timer_t, int, const itimerspec *, itimerspec *)
+    void    tzset()
+
+    int daylight
+    long timezone
+    char *tzname[2]

Cython/Includes/posix/sys_time.pxd

-# http://pubs.opengroup.org/onlinepubs/009695399/basedefs/sys/time.h.html
-
-from posix.types cimport suseconds_t, time_t
-
-cdef extern from "sys/time.h" nogil:
-
-    enum: ITIMER_REAL
-    enum: ITIMER_VIRTUAL
-    enum: ITIMER_PROF
-
-    cdef struct timezone:
-        int tz_minuteswest
-        int dsttime
-
-    cdef struct timeval:
-        time_t      tv_sec
-        suseconds_t tv_usec
-
-    cdef struct itimerval:
-        timeval it_interval
-        timeval it_value
-
-    int     getitimer(int, itimerval *)
-    int     gettimeofday(timeval *tp, timezone *tzp)
-    int     setitimer(int, const itimerval *, itimerval *)

Cython/Includes/posix/time.pxd

 # http://pubs.opengroup.org/onlinepubs/009695399/basedefs/sys/time.h.html
 
-from posix.signal cimport sigevent
-from posix.types cimport clock_t, clockid_t, suseconds_t, time_t, timer_t
+from posix.types cimport suseconds_t, time_t
 
-cdef extern from "time.h" nogil:
+cdef extern from "sys/time.h" nogil:
 
-    enum: CLOCKS_PER_SEC
-    enum: CLOCK_PROCESS_CPUTIME_ID
-    enum: CLOCK_THREAD_CPUTIME_ID
+    enum: ITIMER_REAL
+    enum: ITIMER_VIRTUAL
+    enum: ITIMER_PROF
 
-    enum: CLOCK_REALTIME
-    enum: TIMER_ABSTIME
-    enum: CLOCK_MONOTONIC
+    cdef struct timezone:
+        int tz_minuteswest
+        int dsttime
 
-    # FreeBSD-specific clocks
-    enum: CLOCK_UPTIME
-    enum: CLOCK_UPTIME_PRECISE
-    enum: CLOCK_UPTIME_FAST
-    enum: CLOCK_REALTIME_PRECISE
-    enum: CLOCK_REALTIME_FAST
-    enum: CLOCK_MONOTONIC_PRECISE
-    enum: CLOCK_MONOTONIC_FAST
-    enum: CLOCK_SECOND
+    cdef struct timeval:
+        time_t      tv_sec
+        suseconds_t tv_usec
 
-    # Linux-specific clocks
-    enum: CLOCK_PROCESS_CPUTIME_ID
-    enum: CLOCK_THREAD_CPUTIME_ID
-    enum: CLOCK_MONOTONIC_RAW
-    enum: CLOCK_REALTIME_COARSE
-    enum: CLOCK_MONOTONIC_COARSE
-    enum: CLOCK_BOOTTIME
-    enum: CLOCK_REALTIME_ALARM
-    enum: CLOCK_BOOTTIME_ALARM
+    cdef struct itimerval:
+        timeval it_interval
+        timeval it_value
 
-    cdef struct timespec:
-        time_t tv_sec
-        long   tv_nsec
-
-    cdef struct itimerspec:
-        timespec it_interval
-        timespec it_value
-
-    cdef struct tm:
-        int  tm_sec
-        int  tm_min
-        int  tm_hour
-        int  tm_mday
-        int  tm_mon
-        int  tm_year
-        int  tm_wday
-        int  tm_yday
-        int  tm_isdst
-        char *tm_zone
-        long tm_gmtoff
-
-    char    *asctime(const tm *)
-    char    *asctime_r(const tm *, char *)
-    clock_t clock()
-    int     clock_getcpuclockid(pid_t, clockid_t *)
-    int     clock_getres(clockid_t, timespec *)
-    int     clock_gettime(clockid_t, timespec *)
-    int     clock_nanosleep(clockid_t, int, const timespec *, timespec *)
-    int     clock_settime(clockid_t, const timespec *)
-    char    *ctime(const time_t *)
-    char    *ctime_r(const time_t *, char *)
-    double  difftime(time_t, time_t)
-    tm      *getdate(const char *)
-    tm      *gmtime(const time_t *)
-    tm      *gmtime_r(const time_t *, tm *)
-    tm      *localtime(const time_t *)
-    tm      *localtime_r(const time_t *, tm *)
-    time_t  mktime(tm *)
-    int     nanosleep(const timespec *, timespec *)
-    size_t  strftime(char *, size_t, const char *, const tm *)
-    char    *strptime(const char *, const char *, tm *)
-    time_t  time(time_t *)
-    int     timer_create(clockid_t, sigevent *, timer_t *)
-    int     timer_delete(timer_t)
-    int     timer_gettime(timer_t, itimerspec *)
-    int     timer_getoverrun(timer_t)
-    int     timer_settime(timer_t, int, const itimerspec *, itimerspec *)
-    void    tzset()
-
-    int daylight
-    long timezone
-    char *tzname[2]
+    int     getitimer(int, itimerval *)
+    int     gettimeofday(timeval *tp, timezone *tzp)
+    int     setitimer(int, const itimerval *, itimerval *)