Gecko [ www.bigdataconsulting.fr ]

Name	Size	Permission	Date
clinic	[ DIR ]	drwxr-xr-x	2024-03-19 22:46
Python-ast.c	403.1 KB	-rw-r--r--	2024-03-19 22:46
Python-ast.gcda	73.55 KB	-rw-r--r--	2025-06-04 09:21
Python-ast.o	1.64 MB	-rw-r--r--	2025-06-04 09:22
README	62 B	-rw-r--r--	2024-03-19 22:46
_warnings.c	37.47 KB	-rw-r--r--	2024-03-19 22:46
_warnings.gcda	10.5 KB	-rw-r--r--	2025-06-04 09:21
_warnings.o	274.36 KB	-rw-r--r--	2025-06-04 09:22
asdl.c	188 B	-rw-r--r--	2024-03-19 22:46
asdl.gcda	3.98 KB	-rw-r--r--	2025-06-04 09:21
asdl.o	41.46 KB	-rw-r--r--	2025-06-04 09:22
ast.c	33.83 KB	-rw-r--r--	2024-03-19 22:46
ast.gcda	8.98 KB	-rw-r--r--	2025-06-04 09:21
ast.o	162 KB	-rw-r--r--	2025-06-04 09:22
ast_opt.c	29.15 KB	-rw-r--r--	2024-03-19 22:46
ast_opt.gcda	10.67 KB	-rw-r--r--	2025-06-04 09:21
ast_opt.o	464.67 KB	-rw-r--r--	2025-06-04 09:22
ast_unparse.c	25.85 KB	-rw-r--r--	2024-03-19 22:46
ast_unparse.gcda	9.81 KB	-rw-r--r--	2025-06-04 09:21
ast_unparse.o	204.5 KB	-rw-r--r--	2025-06-04 09:22
bltinmodule.c	88.5 KB	-rw-r--r--	2024-03-19 22:46
bltinmodule.gcda	17.87 KB	-rw-r--r--	2025-06-04 09:21
bltinmodule.o	611.81 KB	-rw-r--r--	2025-06-04 09:22
bootstrap_hash.c	18.18 KB	-rw-r--r--	2024-03-19 22:46
bootstrap_hash.gcda	4.34 KB	-rw-r--r--	2025-06-04 09:21
bootstrap_hash.o	63.27 KB	-rw-r--r--	2025-06-04 09:22
ceval.c	206.97 KB	-rw-r--r--	2024-03-19 22:46
ceval.gcda	29.57 KB	-rw-r--r--	2025-06-04 09:21
ceval.o	1.21 MB	-rw-r--r--	2025-06-04 09:22
ceval_gil.h	12.19 KB	-rw-r--r--	2024-03-19 22:46
codecs.c	45.02 KB	-rw-r--r--	2024-03-19 22:46
codecs.gcda	12.75 KB	-rw-r--r--	2025-06-04 09:21
codecs.o	329.38 KB	-rw-r--r--	2025-06-04 09:22
compile.c	233.08 KB	-rw-r--r--	2024-03-19 22:46
compile.gcda	43.95 KB	-rw-r--r--	2025-06-04 09:21
compile.o	1.79 MB	-rw-r--r--	2025-06-04 09:22
condvar.h	8.44 KB	-rw-r--r--	2024-03-19 22:46
context.c	30.93 KB	-rw-r--r--	2024-03-19 22:46
context.gcda	9.95 KB	-rw-r--r--	2025-06-04 09:21
context.o	200.97 KB	-rw-r--r--	2025-06-04 09:22
dtoa.c	78.28 KB	-rw-r--r--	2024-03-19 22:46
dtoa.gcda	10.32 KB	-rw-r--r--	2025-06-04 09:21
dtoa.o	658.92 KB	-rw-r--r--	2025-06-04 09:22
dup2.c	759 B	-rw-r--r--	2024-03-19 22:46
dynamic_annotations.c	6.59 KB	-rw-r--r--	2024-03-19 22:46
dynamic_annotations.o	2.16 KB	-rw-r--r--	2025-06-04 09:22
dynload_hpux.c	2.12 KB	-rw-r--r--	2024-03-19 22:46
dynload_shlib.c	3.47 KB	-rw-r--r--	2024-03-19 22:46
dynload_shlib.gcda	3.77 KB	-rw-r--r--	2025-06-04 09:21
dynload_shlib.o	78.03 KB	-rw-r--r--	2025-06-04 09:22
dynload_stub.c	186 B	-rw-r--r--	2024-03-19 22:46
dynload_win.c	9.97 KB	-rw-r--r--	2024-03-19 22:46
errors.c	49.3 KB	-rw-r--r--	2024-03-19 22:46
errors.gcda	11.97 KB	-rw-r--r--	2025-06-04 09:21
errors.o	604.46 KB	-rw-r--r--	2025-06-04 09:22
fileutils.c	65.03 KB	-rw-r--r--	2024-03-19 22:46
fileutils.gcda	9.9 KB	-rw-r--r--	2025-06-04 09:21
fileutils.o	235.27 KB	-rw-r--r--	2025-06-04 09:22
formatter_unicode.c	50.35 KB	-rw-r--r--	2024-03-19 22:46
formatter_unicode.gcda	7.99 KB	-rw-r--r--	2025-06-04 09:21
formatter_unicode.o	352.49 KB	-rw-r--r--	2025-06-04 09:22
frozen.c	1.31 KB	-rw-r--r--	2024-03-19 22:46
frozen.o	122.48 KB	-rw-r--r--	2025-06-04 09:22
frozen_hello.h	547 B	-rw-r--r--	2024-03-19 22:46
frozenmain.c	3.12 KB	-rw-r--r--	2024-03-19 22:46
frozenmain.o	55.7 KB	-rw-r--r--	2025-06-04 09:22
future.c	4.35 KB	-rw-r--r--	2024-03-19 22:46
future.gcda	3.91 KB	-rw-r--r--	2025-06-04 09:21
future.o	69.3 KB	-rw-r--r--	2025-06-04 09:22
getargs.c	83.81 KB	-rw-r--r--	2024-03-19 22:46
getargs.gcda	14.68 KB	-rw-r--r--	2025-06-04 09:21
getargs.o	702.23 KB	-rw-r--r--	2025-06-04 09:22
getcompiler.c	534 B	-rw-r--r--	2024-03-19 22:46
getcompiler.gcda	3.48 KB	-rw-r--r--	2025-06-04 09:21
getcompiler.o	31.86 KB	-rw-r--r--	2025-06-04 09:22
getcopyright.c	511 B	-rw-r--r--	2024-03-19 22:46
getcopyright.gcda	3.48 KB	-rw-r--r--	2025-06-04 09:21
getcopyright.o	32.27 KB	-rw-r--r--	2025-06-04 09:22
getopt.c	4.6 KB	-rw-r--r--	2024-03-19 22:46
getopt.gcda	3.82 KB	-rw-r--r--	2025-06-04 09:21
getopt.o	43.34 KB	-rw-r--r--	2025-06-04 09:22
getplatform.c	133 B	-rw-r--r--	2024-03-19 22:46
getplatform.gcda	3.48 KB	-rw-r--r--	2025-06-04 09:21
getplatform.o	31.85 KB	-rw-r--r--	2025-06-04 09:22
getversion.c	308 B	-rw-r--r--	2024-03-19 22:46
getversion.gcda	3.5 KB	-rw-r--r--	2025-06-04 09:21
getversion.o	32.93 KB	-rw-r--r--	2025-06-04 09:22
hamt.c	78.82 KB	-rw-r--r--	2024-03-19 22:46
hamt.gcda	11.18 KB	-rw-r--r--	2025-06-04 09:21
hamt.o	257.84 KB	-rw-r--r--	2025-06-04 09:22
hashtable.c	11.17 KB	-rw-r--r--	2024-03-19 22:46
hashtable.gcda	5.66 KB	-rw-r--r--	2025-06-04 09:21
hashtable.o	84.36 KB	-rw-r--r--	2025-06-04 09:22
import.c	62.01 KB	-rw-r--r--	2024-03-19 22:46
import.gcda	17.11 KB	-rw-r--r--	2025-06-04 09:21
import.o	461.4 KB	-rw-r--r--	2025-06-04 09:22
importdl.c	7.32 KB	-rw-r--r--	2024-03-19 22:46
importdl.gcda	4.35 KB	-rw-r--r--	2025-06-04 09:21
importdl.h	487 B	-rw-r--r--	2024-03-19 22:46
importdl.o	71.44 KB	-rw-r--r--	2025-06-04 09:22
importlib.h	99.12 KB	-rw-r--r--	2024-03-19 22:46
importlib_external.h	147.15 KB	-rw-r--r--	2024-03-19 22:46
importlib_zipimport.h	57.35 KB	-rw-r--r--	2024-03-19 22:46
initconfig.c	89.33 KB	-rw-r--r--	2024-03-19 22:46
initconfig.gcda	20.45 KB	-rw-r--r--	2025-06-04 09:21
initconfig.o	482.04 KB	-rw-r--r--	2025-06-04 09:22
makeopcodetargets.py	1.55 KB	-rwxr-xr-x	2024-03-19 22:46
marshal.c	48.33 KB	-rw-r--r--	2024-03-19 22:46
marshal.gcda	13.91 KB	-rw-r--r--	2025-06-04 09:21
marshal.o	325.08 KB	-rw-r--r--	2025-06-04 09:22
modsupport.c	18.12 KB	-rw-r--r--	2024-03-19 22:46
modsupport.gcda	6.66 KB	-rw-r--r--	2025-06-04 09:21
modsupport.o	243.86 KB	-rw-r--r--	2025-06-04 09:22
mysnprintf.c	2.49 KB	-rw-r--r--	2024-03-19 22:46
mysnprintf.gcda	3.56 KB	-rw-r--r--	2025-06-04 09:21
mysnprintf.o	39.3 KB	-rw-r--r--	2025-06-04 09:22
mystrtoul.c	8.09 KB	-rw-r--r--	2024-03-19 22:46
mystrtoul.gcda	3.93 KB	-rw-r--r--	2025-06-04 09:21
mystrtoul.o	64.22 KB	-rw-r--r--	2025-06-04 09:22
opcode_targets.h	6.31 KB	-rw-r--r--	2024-03-19 22:46
pathconfig.c	19.75 KB	-rw-r--r--	2024-03-19 22:46
pathconfig.gcda	7.42 KB	-rw-r--r--	2025-06-04 09:21
pathconfig.o	110.59 KB	-rw-r--r--	2025-06-04 09:22
preconfig.c	25.21 KB	-rw-r--r--	2024-03-19 22:46
preconfig.gcda	6.76 KB	-rw-r--r--	2025-06-04 09:21
preconfig.o	140.21 KB	-rw-r--r--	2025-06-04 09:22
pyarena.c	5.52 KB	-rw-r--r--	2024-03-19 22:46
pyarena.gcda	3.97 KB	-rw-r--r--	2025-06-04 09:21
pyarena.o	48.03 KB	-rw-r--r--	2025-06-04 09:22
pyctype.c	7.73 KB	-rw-r--r--	2024-03-19 22:46
pyctype.o	32.77 KB	-rw-r--r--	2025-06-04 09:22
pyfpe.c	345 B	-rw-r--r--	2024-03-19 22:46
pyfpe.o	4.01 KB	-rw-r--r--	2025-06-04 09:22
pyhash.c	13.45 KB	-rw-r--r--	2024-03-19 22:46
pyhash.gcda	4.16 KB	-rw-r--r--	2025-06-04 09:21
pyhash.o	70.6 KB	-rw-r--r--	2025-06-04 09:22
pylifecycle.c	80.77 KB	-rw-r--r--	2024-03-19 22:46
pylifecycle.gcda	15.06 KB	-rw-r--r--	2025-06-04 09:21
pylifecycle.o	390.44 KB	-rw-r--r--	2025-06-04 09:22
pymath.c	1.6 KB	-rw-r--r--	2024-03-19 22:46
pymath.gcda	3.54 KB	-rw-r--r--	2025-06-04 09:21
pymath.o	32.34 KB	-rw-r--r--	2025-06-04 09:22
pystate.c	56.36 KB	-rw-r--r--	2024-03-19 22:46
pystate.gcda	12.61 KB	-rw-r--r--	2025-06-04 09:21
pystate.o	238.3 KB	-rw-r--r--	2025-06-04 09:22
pystrcmp.c	753 B	-rw-r--r--	2024-03-19 22:46
pystrcmp.gcda	3.62 KB	-rw-r--r--	2025-06-04 09:21
pystrcmp.o	37.12 KB	-rw-r--r--	2025-06-04 09:22
pystrhex.c	5.24 KB	-rw-r--r--	2024-03-19 22:46
pystrhex.gcda	4.09 KB	-rw-r--r--	2025-06-04 09:21
pystrhex.o	55.29 KB	-rw-r--r--	2025-06-04 09:22
pystrtod.c	40.06 KB	-rw-r--r--	2024-03-19 22:46
pystrtod.gcda	5.14 KB	-rw-r--r--	2025-06-04 09:21
pystrtod.o	96.01 KB	-rw-r--r--	2025-06-04 09:22
pythonrun.c	42.71 KB	-rw-r--r--	2024-03-19 22:46
pythonrun.gcda	11.89 KB	-rw-r--r--	2025-06-04 09:21
pythonrun.o	282.42 KB	-rw-r--r--	2025-06-04 09:22
pytime.c	28.68 KB	-rw-r--r--	2024-03-19 22:46
pytime.gcda	7.47 KB	-rw-r--r--	2025-06-04 09:21
pytime.o	120.86 KB	-rw-r--r--	2025-06-04 09:22
stdlib_module_names.h	3.49 KB	-rw-r--r--	2024-03-19 22:46
structmember.c	8.83 KB	-rw-r--r--	2024-03-19 22:46
structmember.gcda	4.83 KB	-rw-r--r--	2025-06-04 09:21
structmember.o	73.16 KB	-rw-r--r--	2025-06-04 09:22
suggestions.c	8.46 KB	-rw-r--r--	2024-03-19 22:46
suggestions.gcda	4.29 KB	-rw-r--r--	2025-06-04 09:21
suggestions.o	57.27 KB	-rw-r--r--	2025-06-04 09:22
symtable.c	72.25 KB	-rw-r--r--	2024-03-19 22:46
symtable.gcda	15.05 KB	-rw-r--r--	2025-06-04 09:21
symtable.o	638.03 KB	-rw-r--r--	2025-06-04 09:22
sysmodule.c	94.57 KB	-rw-r--r--	2024-03-19 22:46
sysmodule.gcda	19.89 KB	-rw-r--r--	2025-06-04 09:21
sysmodule.o	579.73 KB	-rw-r--r--	2025-06-04 09:22
thread.c	5.8 KB	-rw-r--r--	2024-03-19 22:46
thread.gcda	6.58 KB	-rw-r--r--	2025-06-04 09:21
thread.o	133.44 KB	-rw-r--r--	2025-06-04 09:22
thread_nt.h	12.16 KB	-rw-r--r--	2024-03-19 22:46
thread_pthread.h	25.32 KB	-rw-r--r--	2024-03-19 22:46
traceback.c	25.55 KB	-rw-r--r--	2024-03-19 22:46
traceback.gcda	8.3 KB	-rw-r--r--	2025-06-04 09:21
traceback.o	169.99 KB	-rw-r--r--	2025-06-04 09:22
wordcode_helpers.h	1.25 KB	-rw-r--r--	2024-03-19 22:46

Rename

#include "Python.h"
#include "pycore_pyarena.h"       // PyArena

/* A simple arena block structure.

Measurements with standard library modules suggest the average
   allocation is about 20 bytes and that most compiles use a single
   block.

TODO(jhylton): Think about a realloc API, maybe just for the last
   allocation?
*/

#define DEFAULT_BLOCK_SIZE 8192
#define ALIGNMENT               8

typedef struct _block {
    /* Total number of bytes owned by this block available to pass out.
     * Read-only after initialization.  The first such byte starts at
     * ab_mem.
     */
    size_t ab_size;

/* Total number of bytes already passed out.  The next byte available
     * to pass out starts at ab_mem + ab_offset.
     */
    size_t ab_offset;

/* An arena maintains a singly-linked, NULL-terminated list of
     * all blocks owned by the arena.  These are linked via the
     * ab_next member.
     */
    struct _block *ab_next;

/* Pointer to the first allocatable byte owned by this block.  Read-
     * only after initialization.
     */
    void *ab_mem;
} block;

/* The arena manages two kinds of memory, blocks of raw memory
   and a list of PyObject* pointers.  PyObjects are decrefed
   when the arena is freed.
*/

struct _arena {
    /* Pointer to the first block allocated for the arena, never NULL.
       It is used only to find the first block when the arena is
       being freed.
     */
    block *a_head;

/* Pointer to the block currently used for allocation.  Its
       ab_next field should be NULL.  If it is not-null after a
       call to block_alloc(), it means a new block has been allocated
       and a_cur should be reset to point it.
     */
    block *a_cur;

/* A Python list object containing references to all the PyObject
       pointers associated with this arena.  They will be DECREFed
       when the arena is freed.
    */
    PyObject *a_objects;

#if defined(Py_DEBUG)
    /* Debug output */
    size_t total_allocs;
    size_t total_size;
    size_t total_blocks;
    size_t total_block_size;
    size_t total_big_blocks;
#endif
};

static block *
block_new(size_t size)
{
    /* Allocate header and block as one unit.
       ab_mem points just past header. */
    block *b = (block *)PyMem_Malloc(sizeof(block) + size);
    if (!b)
        return NULL;
    b->ab_size = size;
    b->ab_mem = (void *)(b + 1);
    b->ab_next = NULL;
    b->ab_offset = (char *)_Py_ALIGN_UP(b->ab_mem, ALIGNMENT) -
            (char *)(b->ab_mem);
    return b;
}

static void
block_free(block *b) {
    while (b) {
        block *next = b->ab_next;
        PyMem_Free(b);
        b = next;
    }
}

static void *
block_alloc(block *b, size_t size)
{
    void *p;
    assert(b);
    size = _Py_SIZE_ROUND_UP(size, ALIGNMENT);
    if (b->ab_offset + size > b->ab_size) {
        /* If we need to allocate more memory than will fit in
           the default block, allocate a one-off block that is
           exactly the right size. */
        /* TODO(jhylton): Think about space waste at end of block */
        block *newbl = block_new(
                        size < DEFAULT_BLOCK_SIZE ?
                        DEFAULT_BLOCK_SIZE : size);
        if (!newbl)
            return NULL;
        assert(!b->ab_next);
        b->ab_next = newbl;
        b = newbl;
    }

assert(b->ab_offset + size <= b->ab_size);
    p = (void *)(((char *)b->ab_mem) + b->ab_offset);
    b->ab_offset += size;
    return p;
}

PyArena *
_PyArena_New(void)
{
    PyArena* arena = (PyArena *)PyMem_Malloc(sizeof(PyArena));
    if (!arena)
        return (PyArena*)PyErr_NoMemory();

arena->a_head = block_new(DEFAULT_BLOCK_SIZE);
    arena->a_cur = arena->a_head;
    if (!arena->a_head) {
        PyMem_Free((void *)arena);
        return (PyArena*)PyErr_NoMemory();
    }
    arena->a_objects = PyList_New(0);
    if (!arena->a_objects) {
        block_free(arena->a_head);
        PyMem_Free((void *)arena);
        return (PyArena*)PyErr_NoMemory();
    }
#if defined(Py_DEBUG)
    arena->total_allocs = 0;
    arena->total_size = 0;
    arena->total_blocks = 1;
    arena->total_block_size = DEFAULT_BLOCK_SIZE;
    arena->total_big_blocks = 0;
#endif
    return arena;
}

void
_PyArena_Free(PyArena *arena)
{
    assert(arena);
#if defined(Py_DEBUG)
    /*
    fprintf(stderr,
        "alloc=%zu size=%zu blocks=%zu block_size=%zu big=%zu objects=%zu\n",
        arena->total_allocs, arena->total_size, arena->total_blocks,
        arena->total_block_size, arena->total_big_blocks,
        PyList_Size(arena->a_objects));
    */
#endif
    block_free(arena->a_head);
    /* This property normally holds, except when the code being compiled
       is sys.getobjects(0), in which case there will be two references.
    assert(arena->a_objects->ob_refcnt == 1);
    */

Py_DECREF(arena->a_objects);
    PyMem_Free(arena);
}

void *
_PyArena_Malloc(PyArena *arena, size_t size)
{
    void *p = block_alloc(arena->a_cur, size);
    if (!p)
        return PyErr_NoMemory();
#if defined(Py_DEBUG)
    arena->total_allocs++;
    arena->total_size += size;
#endif
    /* Reset cur if we allocated a new block. */
    if (arena->a_cur->ab_next) {
        arena->a_cur = arena->a_cur->ab_next;
#if defined(Py_DEBUG)
        arena->total_blocks++;
        arena->total_block_size += arena->a_cur->ab_size;
        if (arena->a_cur->ab_size > DEFAULT_BLOCK_SIZE)
            ++arena->total_big_blocks;
#endif
    }
    return p;
}

int
_PyArena_AddPyObject(PyArena *arena, PyObject *obj)
{
    int r = PyList_Append(arena->a_objects, obj);
    if (r >= 0) {
        Py_DECREF(obj);
    }
    return r;
}