[Python-checkins] r82290 - in python/branches/py3k: Include/longobject.h Modules/xxmodule.c Objects/floatobject.c Objects/frameobject.c

mark.dickinson python-checkins at python.org
Sun Jun 27 20:19:09 CEST 2010


Author: mark.dickinson
Date: Sun Jun 27 20:19:09 2010
New Revision: 82290

Log:
Issue #9089: Remove references to intobject.c and intobject.h from comments.

Modified:
   python/branches/py3k/Include/longobject.h
   python/branches/py3k/Modules/xxmodule.c
   python/branches/py3k/Objects/floatobject.c
   python/branches/py3k/Objects/frameobject.c

Modified: python/branches/py3k/Include/longobject.h
==============================================================================
--- python/branches/py3k/Include/longobject.h	(original)
+++ python/branches/py3k/Include/longobject.h	Sun Jun 27 20:19:09 2010
@@ -58,7 +58,7 @@
 #error "sizeof(pid_t) is neither sizeof(int), sizeof(long) or sizeof(long long)"
 #endif /* SIZEOF_PID_T */
 
-/* For use by intobject.c only */
+/* Used by Python/mystrtoul.c. */
 PyAPI_DATA(unsigned char) _PyLong_DigitValue[256];
 
 /* _PyLong_Frexp returns a double x and an exponent e such that the

Modified: python/branches/py3k/Modules/xxmodule.c
==============================================================================
--- python/branches/py3k/Modules/xxmodule.c	(original)
+++ python/branches/py3k/Modules/xxmodule.c	Sun Jun 27 20:19:09 2010
@@ -10,7 +10,7 @@
    your own types of attributes instead.  Maybe you want to name your
    local variables other than 'self'.  If your object type is needed in
    other files, you'll have to create a file "foobarobject.h"; see
-   intobject.h for an example. */
+   floatobject.h for an example. */
 
 /* Xxo objects */
 

Modified: python/branches/py3k/Objects/floatobject.c
==============================================================================
--- python/branches/py3k/Objects/floatobject.c	(original)
+++ python/branches/py3k/Objects/floatobject.c	Sun Jun 27 20:19:09 2010
@@ -21,7 +21,22 @@
 extern int finite(double);
 #endif
 
-/* Special free list -- see comments for same code in intobject.c. */
+/* Special free list
+
+   Since some Python programs can spend much of their time allocating
+   and deallocating floats, these operations should be very fast.
+   Therefore we use a dedicated allocation scheme with a much lower
+   overhead (in space and time) than straight malloc(): a simple
+   dedicated free list, filled when necessary with memory from malloc().
+
+   block_list is a singly-linked list of all PyFloatBlocks ever allocated,
+   linked via their next members.  PyFloatBlocks are never returned to the
+   system before shutdown (PyFloat_Fini).
+
+   free_list is a singly-linked list of available PyFloatObjects, linked
+   via abuse of their ob_type members.
+*/
+
 #define BLOCK_SIZE      1000    /* 1K less typical malloc overhead */
 #define BHEAD_SIZE      8       /* Enough for a 64-bit pointer */
 #define N_FLOATOBJECTS  ((BLOCK_SIZE - BHEAD_SIZE) / sizeof(PyFloatObject))

Modified: python/branches/py3k/Objects/frameobject.c
==============================================================================
--- python/branches/py3k/Objects/frameobject.c	(original)
+++ python/branches/py3k/Objects/frameobject.c	Sun Jun 27 20:19:09 2010
@@ -391,7 +391,7 @@
        the local variables in f_localsplus are NULL.
 
    2. We also maintain a separate free list of stack frames (just like
-   integers are allocated in a special way -- see intobject.c).  When
+   floats are allocated in a special way -- see floatobject.c).  When
    a stack frame is on the free list, only the following members have
    a meaning:
     ob_type             == &Frametype


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