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vfprintf: Move jump table definition and the macros out of function

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The second jump table will be moved to a separate function
in the next commit.
This commit is contained in:
Florian Weimer 2015-05-21 15:45:09 +01:00
parent 608f897106
commit f0f98189d8
2 changed files with 72 additions and 65 deletions
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8
ChangeLog
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@ -1,3 +1,11 @@
2015-05-21 Florian Weimer <fweimer@redhat.com>
* stdio-common/vfprintf.c (jump_table): Move out of the vfprintf
function.
(NOT_IN_JUMP_RANGE, CHAR_CLASS, LABEL, REF, JUMP, STEP0_3_TABLE,
STEP4_TABLE, process_arg): Move macro definitions
out of the vfprintf function. (Cosmetic change only.)
2015-05-21 Carlos O'Donell <carlos@redhat.com>
* benchtests/Makefile (stdio-common-bench): Define.

129
stdio-common/vfprintf.c
View File

@ -202,71 +202,9 @@ static const CHAR_T null[] = L_("(null)");
/* Size of the work_buffer variable (in characters, not bytes. */
enum { WORK_BUFFER_SIZE = 1000 };
/* Helper function to provide temporary buffering for unbuffered streams. */
static int buffered_vfprintf (FILE *stream, const CHAR_T *fmt, va_list)
__THROW __attribute__ ((noinline)) internal_function;
/* Handle unknown format specifier. */
static int printf_unknown (FILE *, const struct printf_info *,
const void *const *) __THROW;
/* Group digits of number string. */
static CHAR_T *group_number (CHAR_T *, CHAR_T *, const char *, THOUSANDS_SEP_T)
__THROW internal_function;
/* The function itself. */
int
vfprintf (FILE *s, const CHAR_T *format, va_list ap)
{
/* The character used as thousands separator. */
THOUSANDS_SEP_T thousands_sep = 0;
/* The string describing the size of groups of digits. */
const char *grouping;
/* Place to accumulate the result. */
int done;
/* Current character in format string. */
const UCHAR_T *f;
/* End of leading constant string. */
const UCHAR_T *lead_str_end;
/* Points to next format specifier. */
const UCHAR_T *end_of_spec;
/* Buffer intermediate results. */
CHAR_T work_buffer[WORK_BUFFER_SIZE];
CHAR_T *workstart = NULL;
CHAR_T *workend;
/* We have to save the original argument pointer. */
va_list ap_save;
/* Count number of specifiers we already processed. */
int nspecs_done;
/* For the %m format we may need the current `errno' value. */
int save_errno = errno;
/* 1 if format is in read-only memory, -1 if it is in writable memory,
0 if unknown. */
int readonly_format = 0;
/* For the argument descriptions, which may be allocated on the heap. */
void *args_malloced = NULL;
/* For positional argument handling. */
struct printf_spec *specs;
/* Track if we malloced the SPECS array and thus must free it. */
bool specs_malloced = false;
/* This table maps a character into a number representing a
class. In each step there is a destination label for each
class. */
static const uint8_t jump_table[] =
/* This table maps a character into a number representing a class. In
each step there is a destination label for each class. */
static const uint8_t jump_table[] =
{
/* ' ' */ 1, 0, 0, /* '#' */ 4,
0, /* '%' */ 14, 0, /* '\''*/ 6,
@ -1267,6 +1205,67 @@ vfprintf (FILE *s, const CHAR_T *format, va_list ap)
break;
#endif
/* Helper function to provide temporary buffering for unbuffered streams. */
static int buffered_vfprintf (FILE *stream, const CHAR_T *fmt, va_list)
__THROW __attribute__ ((noinline)) internal_function;
/* Handle unknown format specifier. */
static int printf_unknown (FILE *, const struct printf_info *,
const void *const *) __THROW;
/* Group digits of number string. */
static CHAR_T *group_number (CHAR_T *, CHAR_T *, const char *, THOUSANDS_SEP_T)
__THROW internal_function;
/* The function itself. */
int
vfprintf (FILE *s, const CHAR_T *format, va_list ap)
{
/* The character used as thousands separator. */
THOUSANDS_SEP_T thousands_sep = 0;
/* The string describing the size of groups of digits. */
const char *grouping;
/* Place to accumulate the result. */
int done;
/* Current character in format string. */
const UCHAR_T *f;
/* End of leading constant string. */
const UCHAR_T *lead_str_end;
/* Points to next format specifier. */
const UCHAR_T *end_of_spec;
/* Buffer intermediate results. */
CHAR_T work_buffer[WORK_BUFFER_SIZE];
CHAR_T *workstart = NULL;
CHAR_T *workend;
/* We have to save the original argument pointer. */
va_list ap_save;
/* Count number of specifiers we already processed. */
int nspecs_done;
/* For the %m format we may need the current `errno' value. */
int save_errno = errno;
/* 1 if format is in read-only memory, -1 if it is in writable memory,
0 if unknown. */
int readonly_format = 0;
/* For the argument descriptions, which may be allocated on the heap. */
void *args_malloced = NULL;
/* For positional argument handling. */
struct printf_spec *specs;
/* Track if we malloced the SPECS array and thus must free it. */
bool specs_malloced = false;
/* Orient the stream. */
#ifdef ORIENT
ORIENT;