dlib.c

/*
 *  Copyright (C) 2004-2008 Christos Tsantilas
 *
 *  This program is free software; you can redistribute it and/or
 *  modify it under the terms of the GNU Lesser General Public
 *  License as published by the Free Software Foundation; either
 *  version 2.1 of the License, or (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 *  Lesser General Public License for more details.
 *
 *  You should have received a copy of the GNU Lesser General Public
 *  License along with this library; if not, write to the Free Software
 *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
 *  MA  02110-1301  USA.
 */

#include "common.h"
#include "c-icap.h"
#include "dlib.h"


struct dlib_entry {
    char *file;
    char *name;
    CI_DLIB_HANDLE handle;
    int forceUnload;
    struct dlib_entry *next;
};

struct dlib_entry *dlib_list = NULL;


int ci_dlib_entry(const char *name, const char *file, CI_DLIB_HANDLE handle, int forceUnload)
{
    struct dlib_entry *dl_e, *dl_cur;

    if (!name || !file || !handle)
        return 0;
    dl_e = malloc(sizeof(struct dlib_entry));
    if (!dl_e)
        return 0;
    dl_e->file = strdup(file);
    if (!dl_e->file) {
        free(dl_e);
        return 0;
    }
    dl_e->name = strdup(name);
    if (!dl_e->name) {
        free(dl_e->file);
        free(dl_e);
        return 0;
    }
    dl_e->handle = handle;
    dl_e->forceUnload = forceUnload;
    dl_e->next = NULL;

    if (dlib_list == NULL) {
        dlib_list = dl_e;
        return 1;
    }
    dl_cur = dlib_list;
    while (dl_cur->next != NULL)
        dl_cur = dl_cur->next;

    dl_cur->next = dl_e;
    return 1;
}



int ci_dlib_closeall()
{
    struct dlib_entry *dl_e, *dl_cur;
    int ret, error = 0;
    dl_cur = dlib_list;
    while (dl_cur != NULL) {
        dl_e = dl_cur;
        dl_cur = dl_cur->next;
        if (dl_e->forceUnload) {
            ret = ci_module_unload(dl_e->handle, dl_e->name);
            if (!ret)
                error = 1;
        }
        if (dl_e->name)
            free(dl_e->name);
        if (dl_e->file)
            free(dl_e->file);
        free(dl_e);
    }
    dlib_list = NULL;
    if (error)
        return 0;
    return 1;
}