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tryRegisterRingFd() — netty Function Reference

Architecture documentation for the tryRegisterRingFd() function in SubmissionQueue.java from the netty codebase.

Function java Buffer Search calls 1

Entity Profile

Dependency Diagram

graph TD
  960730d2_3253_4848_e62d_c72351b93285["tryRegisterRingFd()"]
  1d316f16_48b4_d00e_edf3_3c8fd55f9a6a["SubmissionQueue"]
  960730d2_3253_4848_e62d_c72351b93285 -->|defined in| 1d316f16_48b4_d00e_edf3_3c8fd55f9a6a
  8a51d74d_fd76_09f6_f454_5a079f4faf11["checkClosed()"]
  960730d2_3253_4848_e62d_c72351b93285 -->|calls| 8a51d74d_fd76_09f6_f454_5a079f4faf11
  style 960730d2_3253_4848_e62d_c72351b93285 fill:#6366f1,stroke:#818cf8,color:#fff

Relationship Graph

Source Code

transport-classes-io_uring/src/main/java/io/netty/channel/uring/SubmissionQueue.java lines 113–128

    void tryRegisterRingFd() {
        checkClosed();
        // Try to use IORING_REGISTER_RING_FDS.
        // See https://manpages.debian.org/unstable/liburing-dev/io_uring_register.2.en.html#IORING_REGISTER_RING_FDS
        int enterRingFd = Native.ioUringRegisterRingFds(ringFd);
        final int enterFlags;
        if (enterRingFd < 0) {
            // Use of IORING_REGISTER_RING_FDS failed, just use the ring fd directly.
            enterRingFd = ringFd;
            enterFlags = 0;
        } else {
            enterFlags = Native.IORING_ENTER_REGISTERED_RING;
        }
        this.enterRingFd = enterRingFd;
        this.enterFlags = enterFlags;
    }

Domain

Subdomains

Defined In

Calls

Source

Frequently Asked Questions

What does tryRegisterRingFd() do?
tryRegisterRingFd() is a function in the netty codebase, defined in transport-classes-io_uring/src/main/java/io/netty/channel/uring/SubmissionQueue.java.
Where is tryRegisterRingFd() defined?
tryRegisterRingFd() is defined in transport-classes-io_uring/src/main/java/io/netty/channel/uring/SubmissionQueue.java at line 113.
What does tryRegisterRingFd() call?
tryRegisterRingFd() calls 1 function(s): checkClosed.

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