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Minor beautification. Move struct definitions to the top. Fix-up a comment.

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Raymond Hettinger 2015-03-02 22:31:35 -08:00
parent f30f5b9ba6
commit 30c9074b96
1 changed files with 15 additions and 15 deletions
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30
Modules/_collectionsmodule.c
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@ -15,9 +15,9 @@
/* The block length may be set to any number over 1. Larger numbers /* The block length may be set to any number over 1. Larger numbers
* reduce the number of calls to the memory allocator, give faster * reduce the number of calls to the memory allocator, give faster
* indexing and rotation, and reduce the link::data overhead ratio. * indexing and rotation, and reduce the link to data overhead ratio.
* Making the block length a power of two speeds-up the modulo * Making the block length a power of two speeds-up the modulo
* calculation in deque_item(). * and division calculations in deque_item() and deque_ass_item().
*/ */
#define BLOCKLEN 64 #define BLOCKLEN 64
@ -56,6 +56,19 @@ typedef struct BLOCK {
struct BLOCK *rightlink; struct BLOCK *rightlink;
} block; } block;
typedef struct {
PyObject_VAR_HEAD
block *leftblock;
block *rightblock;
Py_ssize_t leftindex; /* in range(BLOCKLEN) */
Py_ssize_t rightindex; /* in range(BLOCKLEN) */
long state; /* incremented whenever the indices move */
Py_ssize_t maxlen;
PyObject *weakreflist; /* List of weak references */
} dequeobject;
static PyTypeObject deque_type;
/* For debug builds, add error checking to track the endpoints /* For debug builds, add error checking to track the endpoints
* in the chain of links. The goal is to make sure that link * in the chain of links. The goal is to make sure that link
* assignments only take place at endpoints so that links already * assignments only take place at endpoints so that links already
@ -119,19 +132,6 @@ freeblock(block *b)
} }
} }
typedef struct {
PyObject_VAR_HEAD
block *leftblock;
block *rightblock;
Py_ssize_t leftindex; /* in range(BLOCKLEN) */
Py_ssize_t rightindex; /* in range(BLOCKLEN) */
long state; /* incremented whenever the indices move */
Py_ssize_t maxlen;
PyObject *weakreflist; /* List of weak references */
} dequeobject;
static PyTypeObject deque_type;
/* XXX Todo: /* XXX Todo:
If aligned memory allocations become available, make the If aligned memory allocations become available, make the
deque object 64 byte aligned so that all of the fields deque object 64 byte aligned so that all of the fields