shm.h

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/*
 * Copyright (C) 1996-2025 The Squid Software Foundation and contributors
 *
 * Squid software is distributed under GPLv2+ license and includes
 * contributions from numerous individuals and organizations.
 * Please see the COPYING and CONTRIBUTORS files for details.
 */
 
#ifndef SQUID_COMPAT_SHM_H
#define SQUID_COMPAT_SHM_H
 
#if HAVE_SHM
 
#if HAVE_SYS_STAT_H
#include <sys/stat.h> /* for mode constants */
#endif
 
#if HAVE_FCNTL_H
#include <fcntl.h> /* for O_* constants */
#endif
 
#if HAVE_SYS_MMAN_H
#include <sys/mman.h>
#endif
 
#else /* HAVE_SHM */
 
#include <cerrno>
 
extern "C" {
 
    inline int
    shm_open(const char *, int, mode_t) {
        errno = ENOTSUP;
        return -1;
    }
 
    inline int
    shm_unlink(const char *) {
        errno = ENOTSUP;
        return -1;
    }
 
} /* extern "C" */
 
#endif /* HAVE_SHM */
 
bool shm_portable_segment_name_is_path();
 
#endif /* SQUID_COMPAT_SHM_H */