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/* PR rtl-optimization/16199 */

/* Origin: Olaf Klein <oklein@smallo.ruhr.de> */

typedef enum {

    APR_LOCK_FCNTL,

    APR_LOCK_FLOCK,

    APR_LOCK_SYSVSEM,

    APR_LOCK_PROC_PTHREAD,

    APR_LOCK_POSIXSEM,

    APR_LOCK_DEFAULT

} apr_lockmech_e;

struct apr_proc_mutex_unix_lock_methods_t {

    unsigned int flags;

    const char *name;

};

typedef struct apr_proc_mutex_unix_lock_methods_t apr_proc_mutex_unix_lock_methods_t;

extern const apr_proc_mutex_unix_lock_methods_t apr_proc_mutex_unix_sysv_methods;

struct apr_proc_mutex_t {

    const apr_proc_mutex_unix_lock_methods_t *inter_meth;

    int curr_locked;

    char *fname;

};

typedef struct apr_proc_mutex_t apr_proc_mutex_t;

extern const apr_proc_mutex_unix_lock_methods_t apr_proc_mutex_unix_proc_pthread_methods;

extern const apr_proc_mutex_unix_lock_methods_t apr_proc_mutex_unix_fcntl_methods;

static int proc_mutex_choose_method(apr_proc_mutex_t *new_mutex, apr_lockmech_e mech)

{

    switch (mech) {

    case APR_LOCK_FCNTL:

        new_mutex->inter_meth = &apr_proc_mutex_unix_fcntl_methods;

        break;

    case APR_LOCK_FLOCK:

        return ((20000 + 50000) + 23);

        break;

    case APR_LOCK_SYSVSEM:

        new_mutex->inter_meth = &apr_proc_mutex_unix_sysv_methods;

        break;

    case APR_LOCK_POSIXSEM:

        return ((20000 + 50000) + 23);

        break;

    case APR_LOCK_PROC_PTHREAD:

        new_mutex->inter_meth = &apr_proc_mutex_unix_proc_pthread_methods;

        break;

    case APR_LOCK_DEFAULT:

        new_mutex->inter_meth = &apr_proc_mutex_unix_proc_pthread_methods;

        break;

    default:

        return ((20000 + 50000) + 23);

    }

    return 0;

}

const char* apr_proc_mutex_defname(void)

{

    apr_proc_mutex_t mutex;

    if (proc_mutex_choose_method(&mutex, APR_LOCK_DEFAULT) != 0) {

        return "unknown";

    }

}