pd/src m_sched.c,1.5.4.35.2.6,1.5.4.35.2.7 - Pd-cvs

6 Nov 2005


      Update of /cvsroot/pure-data/pd/src
In directory sc8-pr-cvs1.sourceforge.net:/tmp/cvs-serv710
Modified Files:
      Tag: devel_0_39
    m_sched.c 
Log Message:
reverting to oldschool list for clock callbacks ...
we need a heap to gain more efficiency
Index: m_sched.c
===================================================================
RCS file: /cvsroot/pure-data/pd/src/m_sched.c,v
retrieving revision 1.5.4.35.2.6
retrieving revision 1.5.4.35.2.7
diff -C2 -d -r1.5.4.35.2.6 -r1.5.4.35.2.7
*** m_sched.c	28 Oct 2005 12:18:23 -0000	1.5.4.35.2.6
--- m_sched.c	6 Nov 2005 21:11:17 -0000	1.5.4.35.2.7
***************
*** 50,68 ****
  typedef void (*t_clockmethod)(void *client);
struct _clock
  {
!     double c_settime; /* -1 if unset */
      void *c_owner;
      t_clockmethod c_fn;
!     struct _clock *c_next_time; /* clocks with settimes > c_settime */
!     struct _clock *c_next;      /* clocks with settimes == c_settime */
  };
t_clock *clock_setlist;
- 
- #ifdef UNISTD
- #include <unistd.h>
- #endif
- 
  t_clock *clock_new(void *owner, t_method fn)
  {
--- 50,66 ----
  typedef void (*t_clockmethod)(void *client);
+ #ifdef UNISTD
+ #include <unistd.h>
+ #endif
+ 
  struct _clock
  {
!     double c_settime;
      void *c_owner;
      t_clockmethod c_fn;
!     struct _clock *c_next;
  };
t_clock *clock_setlist;
  t_clock *clock_new(void *owner, t_method fn)
  {
***************
*** 71,182 ****
      x->c_owner = owner;
      x->c_fn = (t_clockmethod)fn;
-     x->c_next_time = 0;
      x->c_next = 0;
      return (x);
  }
void clock_unset(t_clock *x)
  {
! 	if (x->c_settime == -1)
! 		return;
! 
! 	assert (clock_setlist);
! 	if (x == clock_setlist)
! 	{
! 		if (x->c_next == 0)
! 			clock_setlist = x->c_next_time;
! 		else
! 		{
! 			x->c_next->c_next_time = x->c_next_time;
! 			clock_setlist = x->c_next;
! 		}
! 	}
! 	else
! 	{
! 		t_clock *x2 = clock_setlist;
! 		t_clock *x_before = 0;
! 		
! 		/* find correct settime list */
! 		while (x2->c_settime != x->c_settime)
! 		{
! 			assert (x2->c_next_time != 0);
! 			
! 			x_before = x2;
! 			x2 = x2->c_next_time;
! 		}
! 		
! 		if (x2 == x) /* we're the first in the settime list */
! 		{
! 			if (x->c_next == NULL) /* we're the only one in the list */
! 				x_before->c_next_time = x->c_next_time;
! 			else
! 			{
! 				x_before->c_next_time = x->c_next;
! 				x->c_next->c_next_time = x->c_next_time;
! 			}
! 		}
! 		else
! 		{
! 			while (x2->c_next != x)
! 			{
! 				x2 = x2->c_next;
! 				assert(x2->c_next);
! 			} 
! 			x2->c_next = x->c_next;
! 		}
! 	}
! 	x->c_settime = -1;
  }
!     /* set the clock to call back at an absolute system time */
  void clock_set(t_clock *x, double setticks)
  {
      if (setticks < sys_time) setticks = sys_time;
      clock_unset(x);
! 	x->c_settime = setticks;
! 	
      if (clock_setlist && clock_setlist->c_settime <= setticks)
      {
! 		if (clock_setlist->c_settime == setticks)
! 		{
! 			/* our slot is the first in the list */
! 			x->c_next_time = 0;
! 			x->c_next = clock_setlist->c_next;
! 			clock_setlist->c_next = x;
! 		}
! 		else
! 		{
! 			t_clock *cbefore = clock_setlist;
! 			t_clock *cafter = clock_setlist->c_next_time;
! 			
! 			while (cafter && cafter->c_settime < setticks)
! 			{
! 				cbefore = cafter;
! 				cafter = cafter->c_next_time;
! 			}
! 
! 			if (cafter && cafter->c_settime == setticks)
! 			{
! 				/* we found our slot */
! 				x->c_next_time = 0;
! 				x->c_next = cafter->c_next;
! 				cafter->c_next = x;
! 			}
! 			else
! 			{
! 				/* we have to create our slot */
! 				x->c_next_time = cafter;
! 				x->c_next = 0;
! 				cbefore->c_next_time = x;
! 			}
! 		}
      }
!     else 
! 	{
! 		/* we have to create a new slot and prepend it */
! 		x->c_next = 0;
! 		x->c_next_time = clock_setlist;
! 		clock_setlist = x;
! 	}
  }
--- 69,113 ----
      x->c_owner = owner;
      x->c_fn = (t_clockmethod)fn;
      x->c_next = 0;
      return (x);
  }
+ 
  void clock_unset(t_clock *x)
  {
!     if (x->c_settime >= 0)
!     {
!         if (x == clock_setlist) clock_setlist = x->c_next;
!         else
!         {
!             t_clock *x2 = clock_setlist;
!             while (x2->c_next != x) x2 = x2->c_next;
!             x2->c_next = x->c_next;
!         }
!         x->c_settime = -1;
!     }
  }
! /* set the clock to call back at an absolute system time */
  void clock_set(t_clock *x, double setticks)
  {
      if (setticks < sys_time) setticks = sys_time;
      clock_unset(x);
!     x->c_settime = setticks;
      if (clock_setlist && clock_setlist->c_settime <= setticks)
      {
!         t_clock *cbefore, *cafter;
!         for (cbefore = clock_setlist, cafter = clock_setlist->c_next;
!             cbefore; cbefore = cafter, cafter = cbefore->c_next)
!         {
!             if (!cafter || cafter->c_settime > setticks)
!             {
!                 cbefore->c_next = x;
!                 x->c_next = cafter;
!                 return;
!             }
!         }
      }
!     else x->c_next = clock_setlist, clock_setlist = x;
  }
***************
*** 187,190 ****
--- 118,122 ----
  }
+ 
      /* get current logical time.  We don't specify what units this is in;
      use clock_gettimesince() to measure intervals from time of this call.