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https://github.com/NVIDIA/nvidia-container-toolkit
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04b28d116c
These changes make library lookups more robust. The core change is that library lookups now first look a set of predefined locations before checking the ldcache. This also handles cases where an ldcache is not available more gracefully. Signed-off-by: Evan Lezar <elezar@nvidia.com>
76 lines
1.9 KiB
Go
76 lines
1.9 KiB
Go
/**
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# Copyright (c) NVIDIA CORPORATION. All rights reserved.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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**/
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package cuda
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import (
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"github.com/NVIDIA/nvidia-container-toolkit/internal/logger"
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"github.com/NVIDIA/nvidia-container-toolkit/internal/lookup"
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)
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type cudaLocator struct {
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lookup.Locator
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logger logger.Interface
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driverRoot string
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}
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// Options is a function that configures a cudaLocator.
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type Options func(*cudaLocator)
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// WithLogger is an option that configures the logger used by the locator.
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func WithLogger(logger logger.Interface) Options {
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return func(c *cudaLocator) {
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c.logger = logger
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}
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}
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// WithDriverRoot is an option that configures the driver root used by the locator.
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func WithDriverRoot(driverRoot string) Options {
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return func(c *cudaLocator) {
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c.driverRoot = driverRoot
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}
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}
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// New creates a new CUDA library locator.
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func New(opts ...Options) lookup.Locator {
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c := &cudaLocator{}
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for _, opt := range opts {
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opt(c)
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}
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if c.logger == nil {
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c.logger = logger.New()
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}
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if c.driverRoot == "" {
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c.driverRoot = "/"
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}
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// TODO: Do we want to set the Count to 1 here?
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l, _ := lookup.NewLibraryLocator(
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c.logger,
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c.driverRoot,
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)
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c.Locator = l
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return c
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}
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// Locate returns the path to the libcuda.so.RMVERSION file.
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// libcuda.so is prefixed to the specified pattern.
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func (l *cudaLocator) Locate(pattern string) ([]string, error) {
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return l.Locator.Locate("libcuda.so" + pattern)
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}
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