#define ONE_K_BUFSIZE 1024
+#ifdef __BORLANDC__
+/* Silence STDERR grumblings from Borland's math library. */
+DllExport int
+_matherr(struct _exception *a)
+{
+ PERL_UNUSED_VAR(a);
+ return 1;
+}
+#endif
+
int
IsWin95(void)
{
: w32_perldll_handle),
w32_module_name, sizeof(w32_module_name));
+ /* remove \\?\ prefix */
+ if (memcmp(w32_module_name, "\\\\?\\", 4) == 0)
+ memmove(w32_module_name, w32_module_name+4, strlen(w32_module_name+4)+1);
+
/* try to get full path to binary (which may be mangled when perl is
* run from a 16-bit app) */
/*PerlIO_printf(Perl_debug_log, "Before %s\n", w32_module_name);*/
dTHX;
if (!*prev_pathp)
*prev_pathp = sv_2mortal(newSVpvn("",0));
- sv_catpvn(*prev_pathp, ";", 1);
+ else if (SvPVX(*prev_pathp))
+ sv_catpvn(*prev_pathp, ";", 1);
sv_catpv(*prev_pathp, mod_name);
return SvPVX(*prev_pathp);
}
|| (IsWinNT() && stricmp(&cname[clen-4], ".cmd") == 0)))
{
bat_file = TRUE;
- len += 3;
+ if (!IsWin95())
+ len += 3;
}
else {
char *exe = strrchr(cname, '/');
New(1310, cmd, len, char);
ptr = cmd;
- if (bat_file) {
+ if (bat_file && !IsWin95()) {
*ptr++ = '"';
extra_quotes = TRUE;
}
/* look in PATH */
pathstr = PerlEnv_getenv("PATH");
- New(0, fullcmd, MAX_PATH+1, char);
+
+ /* worst case: PATH is a single directory; we need additional space
+ * to append "/", ".exe" and trailing "\0" */
+ New(0, fullcmd, (pathstr ? strlen(pathstr) : 0) + cmdlen + 6, char);
curfullcmd = fullcmd;
while (1) {
if (*pathstr == '"') { /* foo;"baz;etc";bar */
pathstr++; /* skip initial '"' */
while (*pathstr && *pathstr != '"') {
- if ((STRLEN)(curfullcmd-fullcmd) < MAX_PATH-cmdlen-5)
- *curfullcmd++ = *pathstr;
- pathstr++;
+ *curfullcmd++ = *pathstr++;
}
if (*pathstr)
pathstr++; /* skip trailing '"' */
}
else {
- if ((STRLEN)(curfullcmd-fullcmd) < MAX_PATH-cmdlen-5)
- *curfullcmd++ = *pathstr;
- pathstr++;
+ *curfullcmd++ = *pathstr++;
}
}
if (*pathstr)
static char *reserved = NULL; /* XXX threadead */
static char *brk = NULL; /* XXX threadead */
static DWORD pagesize = 0; /* XXX threadead */
-static DWORD allocsize = 0; /* XXX threadead */
void *
sbrk(ptrdiff_t need)
* call the OS to commit just one page ...
*/
pagesize = info.dwPageSize << 3;
- allocsize = info.dwAllocationGranularity;
}
- /* This scheme fails eventually if request for contiguous
- * block is denied so reserve big blocks - this is only
- * address space not memory ...
- */
if (brk+need >= reserved)
{
- DWORD size = 64*1024*1024;
+ DWORD size = brk+need-reserved;
char *addr;
+ char *prev_committed = NULL;
if (committed && reserved && committed < reserved)
{
/* Commit last of previous chunk cannot span allocations */
addr = (char *) VirtualAlloc(committed,reserved-committed,MEM_COMMIT,PAGE_READWRITE);
if (addr)
+ {
+ /* Remember where we committed from in case we want to decommit later */
+ prev_committed = committed;
committed = reserved;
+ }
}
/* Reserve some (more) space
+ * Contiguous blocks give us greater efficiency, so reserve big blocks -
+ * this is only address space not memory...
* Note this is a little sneaky, 1st call passes NULL as reserved
* so lets system choose where we start, subsequent calls pass
* the old end address so ask for a contiguous block
*/
+sbrk_reserve:
+ if (size < 64*1024*1024)
+ size = 64*1024*1024;
+ size = ((size + pagesize - 1) / pagesize) * pagesize;
addr = (char *) VirtualAlloc(reserved,size,MEM_RESERVE,PAGE_NOACCESS);
if (addr)
{
if (!brk)
brk = committed;
}
+ else if (reserved)
+ {
+ /* The existing block could not be extended far enough, so decommit
+ * anything that was just committed above and start anew */
+ if (prev_committed)
+ {
+ if (!VirtualFree(prev_committed,reserved-prev_committed,MEM_DECOMMIT))
+ return (void *) -1;
+ }
+ reserved = base = committed = brk = NULL;
+ size = need;
+ goto sbrk_reserve;
+ }
else
{
return (void *) -1;
if (brk > committed)
{
DWORD size = ((brk-committed + pagesize -1)/pagesize) * pagesize;
- char *addr = (char *) VirtualAlloc(committed,size,MEM_COMMIT,PAGE_READWRITE);
+ char *addr;
+ if (committed+size > reserved)
+ size = reserved-committed;
+ addr = (char *) VirtualAlloc(committed,size,MEM_COMMIT,PAGE_READWRITE);
if (addr)
- {
- committed += size;
- }
+ committed += size;
else
return (void *) -1;
}
SV *fullpath;
char *filepart;
DWORD len;
+ STRLEN filename_len;
+ char *filename_p;
if (items != 1)
Perl_croak(aTHX_ "usage: Win32::GetFullPathName($filename)");
filename = ST(0);
- fullpath = sv_mortalcopy(filename);
- SvUPGRADE(fullpath, SVt_PV);
+ filename_p = SvPV(filename, filename_len);
+ fullpath = sv_2mortal(newSVpvn(filename_p, filename_len));
if (!SvPVX(fullpath) || !SvLEN(fullpath))
XSRETURN_UNDEF;
New(1313, w32_pseudo_children, 1, child_tab);
w32_num_pseudo_children = 0;
# endif
- w32_init_socktype = 0;
w32_timerid = 0;
w32_poll_count = 0;
for (i=0; i < SIG_SIZE; i++) {
Newz(1313, dst->children, 1, child_tab);
dst->pseudo_id = 0;
Newz(1313, dst->pseudo_children, 1, child_tab);
- dst->thr_intern.Winit_socktype = 0;
dst->timerid = 0;
dst->poll_count = 0;
Copy(src->sigtable,dst->sigtable,SIG_SIZE,Sighandler_t);
projects / p5sagit/p5-mst-13.2.git / blobdiff