upstream/mercurial-mirror Files · mercurial/cext/charencode.h

dirstate-v2: Add storage space for nanoseconds precision in file mtimes...

dirstate-v2: Add storage space for nanoseconds precision in file mtimes For now the sub-second component is always set to zero for tracked files and symlinks. (The mtime of directories for the `readdir`-skipping optimization is a different code path and already uses the full precision available.) This extra storage uses the space previously freed by replacing the 32-bit `mode` field by two bits in the existing `flags` field, so the overall size of nodes is unchanged. (This space had been left as padding for this purpose.) Also move things around in the node layout and documentation to have less duplication. Now that they have the same representation, directory mtime and file mtime are kept in the same field. (Only either one can exist for a given node.) Differential Revision: https://phab.mercurial-scm.org/D11655

Augie Fackler - - Load All Authors

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      /*

       charencode.h - miscellaneous character encoding

       This software may be used and distributed according to the terms of

       the GNU General Public License, incorporated herein by reference.

      */

      #ifndef _HG_CHARENCODE_H_

      #define _HG_CHARENCODE_H_

      #include <Python.h>

      #include "compat.h"

      /* This should be kept in sync with normcasespecs in encoding.py. */

      enum normcase_spec {

      	NORMCASE_LOWER = -1,

      	NORMCASE_UPPER = 1,

      	NORMCASE_OTHER = 0

      };

      PyObject *unhexlify(const char *str, Py_ssize_t len);

      PyObject *isasciistr(PyObject *self, PyObject *args);

      PyObject *asciilower(PyObject *self, PyObject *args);

      PyObject *asciiupper(PyObject *self, PyObject *args);

      PyObject *make_file_foldmap(PyObject *self, PyObject *args);

      PyObject *jsonescapeu8fast(PyObject *self, PyObject *args);

      /* clang-format off */

      static const int8_t hextable[256] = {

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	 0,  1,  2,  3,  4,  5,  6,  7,  8,  9, -1, -1, -1, -1, -1, -1, /* 0-9 */

      	-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* A-F */

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* a-f */

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,

      	-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1

      };

      /* clang-format on */

      static inline int hexdigit(const char *p, Py_ssize_t off)

      {

      	int8_t val = hextable[(unsigned char)p[off]];

      	if (val >= 0) {

      		return val;

      	}

      	PyErr_SetString(PyExc_ValueError, "input contains non-hex character");

      	return 0;

      }

      #endif /* _HG_CHARENCODE_H_ */

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				/*
				charencode.h - miscellaneous character encoding

				This software may be used and distributed according to the terms of
				the GNU General Public License, incorporated herein by reference.
				*/

				#ifndef _HG_CHARENCODE_H_
				#define _HG_CHARENCODE_H_

				#include <Python.h>
				#include "compat.h"

				/* This should be kept in sync with normcasespecs in encoding.py. */
				enum normcase_spec {
				NORMCASE_LOWER = -1,
				NORMCASE_UPPER = 1,
				NORMCASE_OTHER = 0
				};

				PyObject unhexlify(const char str, Py_ssize_t len);
				PyObject isasciistr(PyObject self, PyObject *args);
				PyObject asciilower(PyObject self, PyObject *args);
				PyObject asciiupper(PyObject self, PyObject *args);
				PyObject make_file_foldmap(PyObject self, PyObject *args);
				PyObject jsonescapeu8fast(PyObject self, PyObject *args);

				/* clang-format off */
				static const int8_t hextable[256] = {
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				0, 1, 2, 3, 4, 5, 6, 7, 8, 9, -1, -1, -1, -1, -1, -1, /* 0-9 */
				-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* A-F */
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, 10, 11, 12, 13, 14, 15, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* a-f */
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
				-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1, -1
				};
				/* clang-format on */

				static inline int hexdigit(const char *p, Py_ssize_t off)
				{
				int8_t val = hextable[(unsigned char)p[off]];

				if (val >= 0) {
				return val;
				}

				PyErr_SetString(PyExc_ValueError, "input contains non-hex character");
				return 0;
				}

				#endif /* _HG_CHARENCODE_H_ */