newlib-cygwin/winsup/cygwin/tls_pbuf.h

33 lines
880 B
C++

/* tls_pbuf.h
Copyright 2008, 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. */
class tmp_pathbuf
{
unsigned c_buf_old;
unsigned w_buf_old;
public:
tmp_pathbuf ();
~tmp_pathbuf ();
inline bool check_usage (unsigned c_need, unsigned w_need)
{
return c_need + c_buf_old < TP_NUM_C_BUFS
&& w_need + w_buf_old < TP_NUM_W_BUFS;
}
char *c_get (); /* Create temporary TLS path buf of size NT_MAX_PATH. */
PWCHAR w_get (); /* Create temporary TLS path buf of size 2 * NT_MAX_PATH. */
inline char *t_get () { return (char *) w_get (); }
inline PUNICODE_STRING u_get (PUNICODE_STRING up)
{
up->Length = 0;
up->MaximumLength = (NT_MAX_PATH - 1) * sizeof (WCHAR);
up->Buffer = w_get ();
return up;
}
};