newlib-cygwin/winsup/cygwin/tls_pbuf.cc

58 lines
1.4 KiB
C++

/* tls_pbuf.cc
Copyright 2008, 2010, 2014 Red Hat, Inc.
This software is a copyrighted work licensed under the terms of the
Cygwin license. Please consult the file "CYGWIN_LICENSE" for
details. */
#include <winsup.h>
#include <malloc.h>
#include "cygtls.h"
#include "tls_pbuf.h"
#define tls_pbuf _my_tls.locals.pathbufs
void
tls_pathbuf::destroy ()
{
for (unsigned i = 0; i < TP_NUM_C_BUFS && c_buf[i]; ++i)
free (c_buf[i]);
for (unsigned i = 0; i < TP_NUM_W_BUFS && w_buf[i]; ++i)
free (w_buf[i]);
}
tmp_pathbuf::tmp_pathbuf ()
: c_buf_old (tls_pbuf.c_cnt),
w_buf_old (tls_pbuf.w_cnt)
{}
tmp_pathbuf::~tmp_pathbuf ()
{
tls_pbuf.c_cnt = c_buf_old;
tls_pbuf.w_cnt = w_buf_old;
}
char *
tmp_pathbuf::c_get ()
{
if (tls_pbuf.c_cnt >= TP_NUM_C_BUFS)
api_fatal ("Internal error: TP_NUM_C_BUFS too small: %u", TP_NUM_C_BUFS);
if (!tls_pbuf.c_buf[tls_pbuf.c_cnt]
&& !(tls_pbuf.c_buf[tls_pbuf.c_cnt] = (char *) malloc (NT_MAX_PATH)))
api_fatal ("Internal error: Out of memory for new path buf.");
return tls_pbuf.c_buf[tls_pbuf.c_cnt++];
}
PWCHAR
tmp_pathbuf::w_get ()
{
if (tls_pbuf.w_cnt >= TP_NUM_W_BUFS)
api_fatal ("Internal error: TP_NUM_W_BUFS too small: %u.", TP_NUM_W_BUFS);
if (!tls_pbuf.w_buf[tls_pbuf.w_cnt]
&& !(tls_pbuf.w_buf[tls_pbuf.w_cnt]
= (PWCHAR) malloc (NT_MAX_PATH * sizeof (WCHAR))))
api_fatal ("Internal error: Out of memory for new wide path buf.");
return tls_pbuf.w_buf[tls_pbuf.w_cnt++];
}