42 lines
1.1 KiB
C++
42 lines
1.1 KiB
C++
/* tls_pbuf.h
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Copyright 2008, 2014 Red Hat, Inc.
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This software is a copyrighted work licensed under the terms of the
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Cygwin license. Please consult the file "CYGWIN_LICENSE" for
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details. */
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#pragma once
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class tmp_pathbuf
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{
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unsigned c_buf_old;
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unsigned w_buf_old;
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public:
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tmp_pathbuf () __attribute__ ((always_inline))
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: c_buf_old (_my_tls.locals.pathbufs.c_cnt),
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w_buf_old (_my_tls.locals.pathbufs.w_cnt)
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{}
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~tmp_pathbuf () __attribute__ ((always_inline))
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{
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_my_tls.locals.pathbufs.c_cnt = c_buf_old;
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_my_tls.locals.pathbufs.w_cnt = w_buf_old;
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}
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inline bool check_usage (unsigned c_need, unsigned w_need)
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{
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return c_need + c_buf_old < TP_NUM_C_BUFS
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&& w_need + w_buf_old < TP_NUM_W_BUFS;
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}
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char *c_get (); /* Create temporary TLS path buf of size NT_MAX_PATH. */
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PWCHAR w_get (); /* Create temporary TLS path buf of size 2 * NT_MAX_PATH. */
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inline char *t_get () { return (char *) w_get (); }
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inline PUNICODE_STRING u_get (PUNICODE_STRING up)
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{
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up->Length = 0;
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up->MaximumLength = (NT_MAX_PATH - 1) * sizeof (WCHAR);
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up->Buffer = w_get ();
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return up;
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}
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};
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