C++ (Cpp) erts_sys_ddll_sym Examples

Example #1

File: erl_win32_sys_ddll.c Project: 0x00evil/otp

int erts_sys_ddll_load_driver_init(void *handle, void **function)
{
    void *fn;
    int res;
    if ((res = erts_sys_ddll_sym(handle, "driver_init", &fn)) != ERL_DE_NO_ERROR) {
	return res;
    }
    *function = fn;
    return res;
}

Example #2

File: erl_vxworks_sys_ddll.c Project: AlainODea/otp

int erts_sys_ddll_load_driver_init(void *handle, void **function)
{
    MODULE_ID mid = (MODULE_ID) handle;
    char *modname;
    char *cp;
    static char statbuf[PREALLOC_BUFFER_SIZE];
    char *fname = statbuf;
    int len;
    int res;
    void *func;
    int need;

    if((modname = moduleNameGet(mid)) == NULL) {
	return ERL_DE_DYNAMIC_ERROR_OFFSET - ((int) ModuleNotFound);
    }
    
    if((cp = strrchr(modname, '.')) == NULL) {
	len = strlen(modname);
    } else {
	len = cp - modname;
    }
    
    need =  len + strlen(DRIVER_INIT_SUFFIX) + 1;
    if (need > PREALLOC_BUFFER_SIZE) {
	fname = erts_alloc(ERTS_ALC_T_DDLL_TMP_BUF, need); /* erts_alloc exits on failure */
    }
    sys_strncpy(fname, modname, len);
    fname[len] = '\0';
    sys_strcat(fname, DRIVER_INIT_SUFFIX);
    res = erts_sys_ddll_sym(handle, fname, &func);
    if (fname != statbuf) {
	erts_free(ERTS_ALC_T_DDLL_TMP_BUF, fname);
    }
    if ( res != ERL_DE_NO_ERROR) {
	return res;
    }
    *function = func;
    return ERL_DE_NO_ERROR;
}