7c9fe920ce
Type: docs Signed-off-by: John DeNisco <jdenisco@cisco.com> Change-Id: I7280e5c5ad10a66c0787a5282291a2ef000bff5f
23 lines
1.0 KiB
YAML
23 lines
1.0 KiB
YAML
---
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name: VPP Comms Library
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maintainer: Florin Coras <fcoras@cisco.com>
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features:
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- Abstracts vpp host stack sessions to integer session handles
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- Exposes its own async communication functions, i.e., epoll, select, poll
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- Supports multi-worker applications
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- Sessions cannot be shared between multiple threads/processes
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- VCL Locked Sessions (VLS):
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- Ensure through locking that only one thread accesses a session at a
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time
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- Detects and registers forked processes as new VCL workers. It does not
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register threads as new workers.
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- LD_PRELOAD shim (LDP):
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- Intercepts syscalls and injects them into VLS.
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- Applications that are supported work with VCL and implicitly with VPP's
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host stack without any code change
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- It does not support all syscalls and syscall options
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description: "VPP Comms Library (VCL) simplifies app interaction with session layer
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by exposing APIs that are similar to but not POSIX-compliant."
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state: production
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properties: [API, CLI, MULTITHREAD]
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