114 lines
3.2 KiB
Go
114 lines
3.2 KiB
Go
//go:build libvirt_dlopen
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// +build libvirt_dlopen
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/*
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* This file is part of the libvirt-go-module project
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*
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* Permission is hereby granted, free of charge, to any person obtaining a copy
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* of this software and associated documentation files (the "Software"), to deal
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* in the Software without restriction, including without limitation the rights
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* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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* copies of the Software, and to permit persons to whom the Software is
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* furnished to do so, subject to the following conditions:
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*
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* The above copyright notice and this permission notice shall be included in
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* all copies or substantial portions of the Software.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
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* THE SOFTWARE.
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*
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* Copyright (C) 2022 Red Hat, Inc.
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*
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*/
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/****************************************************************************
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* THIS CODE HAS BEEN GENERATED. DO NOT CHANGE IT DIRECTLY *
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****************************************************************************/
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package libvirt
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/*
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#cgo libvirt_dlopen LDFLAGS: -ldl
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#cgo libvirt_dlopen CFLAGS: -DLIBVIRT_DLOPEN
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#include <dlfcn.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include "libvirt_generated_dlopen.h"
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#include "error_helper.h"
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static void *handle;
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static bool once;
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virConnectAuthPtr *virConnectAuthPtrDefaultVar;
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static void *
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libvirtLoad(virErrorPtr err)
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{
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char *errMsg;
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if (once) {
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if (handle == NULL) {
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setVirError(err, "Failed to open libvirt.so.0");
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}
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return handle;
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}
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handle = dlopen("libvirt.so.0", RTLD_NOW|RTLD_LOCAL);
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once = true;
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if (handle == NULL) {
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setVirError(err, dlerror());
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return handle;
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}
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virConnectAuthPtrDefaultVar = dlsym(handle, "virConnectAuthPtrDefault");
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if ((errMsg = dlerror()) != NULL) {
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setVirError(err, errMsg);
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dlclose(handle);
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return NULL;
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}
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return handle;
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}
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bool
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libvirtSymbol(const char *name,
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void **symbol,
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bool *once,
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bool *success,
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virErrorPtr err)
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{
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char *errMsg;
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if (!libvirtLoad(err)) {
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return *success;
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}
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if (*once) {
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if (!*success) {
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// Set error for successive calls
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char msg[100];
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snprintf(msg, 100, "Failed to load %s", name);
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setVirError(err, msg);
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}
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return *success;
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}
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// Documentation of dlsym says we should use dlerror() to check for failure
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// in dlsym() as a NULL might be the right address for a given symbol.
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// This is also the reason to have the @success argument.
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*symbol = dlsym(handle, name);
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if ((errMsg = dlerror()) != NULL) {
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setVirError(err, errMsg);
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*once = true;
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return *success;
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}
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*once = true;
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*success = true;
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return *success;
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}
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*/
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import "C"
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