modified lib/sdk/crt/crt.rbuild

modified   lib/sdk/crt/libcntpr.rbuild
   Add qsort and div to crt and libcntpr

modified   lib/sdk/crt/include/internal/tls.h
modified   lib/sdk/crt/stdlib/qsort.c
   Fixed ineptly-ported DJGPP qsort to not use TLS

svn path=/trunk/; revision=34396
This commit is contained in:
KJK::Hyperion 2008-07-09 18:44:46 +00:00
parent 5a9807ee6c
commit 0461306bc8
4 changed files with 48 additions and 47 deletions

View file

@ -267,6 +267,7 @@
<file>mbstowcs.c</file> <file>mbstowcs.c</file>
<file>obsol.c</file> <file>obsol.c</file>
<file>putenv.c</file> <file>putenv.c</file>
<file>qsort.c</file>
<file>rot.c</file> <file>rot.c</file>
<file>senv.c</file> <file>senv.c</file>
<file>swab.c</file> <file>swab.c</file>

View file

@ -27,12 +27,6 @@ typedef struct _ThreadData
int fpecode; /* fp exception code */ int fpecode; /* fp exception code */
/* qsort variables */
int (*qcmp)(const void *, const void *); /* the comparison routine */
int qsz; /* size of each record */
int thresh; /* THRESHold in chars */
int mthresh; /* MTHRESHold in chars */
EXCEPTION_RECORD *exc_record; /* Head of exception record list */ EXCEPTION_RECORD *exc_record; /* Head of exception record list */
} THREADDATA, *PTHREADDATA; } THREADDATA, *PTHREADDATA;

View file

@ -54,6 +54,7 @@
</directory> </directory>
</if> </if>
<file>abs.c</file> <file>abs.c</file>
<file>div.c</file>
<file>labs.c</file> <file>labs.c</file>
<file>rand_nt.c</file> <file>rand_nt.c</file>
</directory> </directory>
@ -83,6 +84,10 @@
<file>lfind.c</file> <file>lfind.c</file>
</directory> </directory>
<directory name="stdlib">
<file>qsort.c</file>
</directory>
<directory name="string"> <directory name="string">
<if property="ARCH" value="i386"> <if property="ARCH" value="i386">
<directory name="i386"> <directory name="i386">

View file

@ -2,7 +2,6 @@
#include <stdlib.h> #include <stdlib.h>
#include <search.h> #include <search.h>
#include <internal/tls.h>
/*- /*-
* Copyright (c) 1980, 1983 The Regents of the University of California. * Copyright (c) 1980, 1983 The Regents of the University of California.
@ -51,12 +50,17 @@
*/ */
static void static void
qst(PTHREADDATA pThreadData, char *base, char *max) qst(size_t size, int (*compar)(const void*, const void*), char *base, char *max)
{ {
char c, *i, *j, *jj; char c, *i, *j, *jj;
int ii; int ii;
char *mid, *tmp; char *mid, *tmp;
int lo, hi; int lo, hi;
size_t thresh;
size_t mthresh;
thresh = size * THRESH;
mthresh = size * MTHRESH;
/* /*
* At the top here, lo is the number of characters of elements in the * At the top here, lo is the number of characters of elements in the
@ -69,20 +73,20 @@ qst(PTHREADDATA pThreadData, char *base, char *max)
*/ */
lo = max - base; /* number of elements as chars */ lo = max - base; /* number of elements as chars */
do { do {
mid = i = base + pThreadData->qsz * ((lo / pThreadData->qsz) >> 1); mid = i = base + size * ((lo / size) >> 1);
if (lo >= pThreadData->mthresh) if (lo >= mthresh)
{ {
j = (pThreadData->qcmp((jj = base), i) > 0 ? jj : i); j = (compar((jj = base), i) > 0 ? jj : i);
if (pThreadData->qcmp(j, (tmp = max - pThreadData->qsz)) > 0) if (compar(j, (tmp = max - size)) > 0)
{ {
/* switch to first loser */ /* switch to first loser */
j = (j == jj ? i : jj); j = (j == jj ? i : jj);
if (pThreadData->qcmp(j, tmp) < 0) if (compar(j, tmp) < 0)
j = tmp; j = tmp;
} }
if (j != i) if (j != i)
{ {
ii = pThreadData->qsz; ii = size;
do { do {
c = *i; c = *i;
*i++ = *j; *i++ = *j;
@ -93,18 +97,18 @@ qst(PTHREADDATA pThreadData, char *base, char *max)
/* /*
* Semi-standard quicksort partitioning/swapping * Semi-standard quicksort partitioning/swapping
*/ */
for (i = base, j = max - pThreadData->qsz; ; ) for (i = base, j = max - size; ; )
{ {
while (i < mid && pThreadData->qcmp(i, mid) <= 0) while (i < mid && compar(i, mid) <= 0)
i += pThreadData->qsz; i += size;
while (j > mid) while (j > mid)
{ {
if (pThreadData->qcmp(mid, j) <= 0) if (compar(mid, j) <= 0)
{ {
j -= pThreadData->qsz; j -= size;
continue; continue;
} }
tmp = i + pThreadData->qsz; /* value of i after swap */ tmp = i + size; /* value of i after swap */
if (i == mid) if (i == mid)
{ {
/* j <-> mid, new mid is j */ /* j <-> mid, new mid is j */
@ -114,7 +118,7 @@ qst(PTHREADDATA pThreadData, char *base, char *max)
{ {
/* i <-> j */ /* i <-> j */
jj = j; jj = j;
j -= pThreadData->qsz; j -= size;
} }
goto swap; goto swap;
} }
@ -127,10 +131,10 @@ qst(PTHREADDATA pThreadData, char *base, char *max)
/* i <-> mid, new mid is i */ /* i <-> mid, new mid is i */
jj = mid; jj = mid;
tmp = mid = i; /* value of i after swap */ tmp = mid = i; /* value of i after swap */
j -= pThreadData->qsz; j -= size;
} }
swap: swap:
ii = pThreadData->qsz; ii = size;
do { do {
c = *i; c = *i;
*i++ = *jj; *i++ = *jj;
@ -146,21 +150,21 @@ qst(PTHREADDATA pThreadData, char *base, char *max)
* (recursively or by branching) if the partition is * (recursively or by branching) if the partition is
* of at least size THRESH. * of at least size THRESH.
*/ */
i = (j = mid) + pThreadData->qsz; i = (j = mid) + size;
if ((lo = j - base) <= (hi = max - i)) if ((lo = j - base) <= (hi = max - i))
{ {
if (lo >= pThreadData->thresh) if (lo >= thresh)
qst(pThreadData, base, j); qst(size, compar, base, j);
base = i; base = i;
lo = hi; lo = hi;
} }
else else
{ {
if (hi >= pThreadData->thresh) if (hi >= thresh)
qst(pThreadData, i, max); qst(size, compar, i, max);
max = j; max = j;
} }
} while (lo >= pThreadData->thresh); } while (lo >= thresh);
} }
/* /*
@ -174,25 +178,22 @@ qst(PTHREADDATA pThreadData, char *base, char *max)
void void
qsort(void *base0, size_t n, size_t size, int (*compar)(const void*, const void*)) qsort(void *base0, size_t n, size_t size, int (*compar)(const void*, const void*))
{ {
PTHREADDATA pThreadData;
char *base = (char *)base0; char *base = (char *)base0;
char c, *i, *j, *lo, *hi; char c, *i, *j, *lo, *hi;
char *min, *max; char *min, *max;
size_t thresh;
if (n <= 1) if (n <= 1)
return; return;
pThreadData = GetThreadData(); size = size;
compar = compar;
pThreadData->qsz = size; thresh = size * THRESH;
pThreadData->qcmp = compar; max = base + n * size;
pThreadData->thresh = pThreadData->qsz * THRESH;
pThreadData->mthresh = pThreadData->qsz * MTHRESH;
max = base + n * pThreadData->qsz;
if (n >= THRESH) if (n >= THRESH)
{ {
qst(pThreadData, base, max); qst(size, compar, base, max);
hi = base + pThreadData->thresh; hi = base + thresh;
} }
else else
{ {
@ -204,13 +205,13 @@ qsort(void *base0, size_t n, size_t size, int (*compar)(const void*, const void*
* the first THRESH elements (or the first n if n < THRESH), finding * the first THRESH elements (or the first n if n < THRESH), finding
* the min, and swapping it into the first position. * the min, and swapping it into the first position.
*/ */
for (j = lo = base; (lo += pThreadData->qsz) < hi; ) for (j = lo = base; (lo += size) < hi; )
if (pThreadData->qcmp(j, lo) > 0) if (compar(j, lo) > 0)
j = lo; j = lo;
if (j != base) if (j != base)
{ {
/* swap j into place */ /* swap j into place */
for (i = base, hi = base + pThreadData->qsz; i < hi; ) for (i = base, hi = base + size; i < hi; )
{ {
c = *j; c = *j;
*j++ = *i; *j++ = *i;
@ -224,15 +225,15 @@ qsort(void *base0, size_t n, size_t size, int (*compar)(const void*, const void*
* Then, do the standard insertion sort shift on a character at a time * Then, do the standard insertion sort shift on a character at a time
* basis for each element in the frob. * basis for each element in the frob.
*/ */
for (min = base; (hi = min += pThreadData->qsz) < max; ) for (min = base; (hi = min += size) < max; )
{ {
while (pThreadData->qcmp(hi -= pThreadData->qsz, min) > 0) while (compar(hi -= size, min) > 0)
/* void */; /* void */;
if ((hi += pThreadData->qsz) != min) { if ((hi += size) != min) {
for (lo = min + pThreadData->qsz; --lo >= min; ) for (lo = min + size; --lo >= min; )
{ {
c = *lo; c = *lo;
for (i = j = lo; (j -= pThreadData->qsz) >= hi; i = j) for (i = j = lo; (j -= size) >= hi; i = j)
*i = *j; *i = *j;
*i = c; *i = c;
} }