Branch: refs/heads/main
Home: https://github.com/WebKit/WebKit
Commit: 57a73ac7aa737d6fc8364eb591060f885923ee41
https://github.com/WebKit/WebKit/commit/57a73ac7aa737d6fc8364eb591060f885923ee41
Author: Povilas Kanapickas <[email protected]>
Date: 2024-09-26 (Thu, 26 Sep 2024)
Changed paths:
M Source/WebKit/Platform/IPC/unix/ConnectionUnix.cpp
Log Message:
-----------
[WPE][GTK] Handle EINTR in recvmsg() in IPC socket on Linux
https://bugs.webkit.org/show_bug.cgi?id=280366
Reviewed by Adrian Perez de Castro.
recvmsg() may fail with EINTR in case it is interrupted by a signal.
In the referred bug this happens due to a child process exiting (with a
zero exit code indicating success). This causes SIGCHLD signal which
just happens to occur during the time recvmsg was waiting for a message.
As recvmsg invocation has no handling for EINTR it will fail, bringing
down whole application with it.
Handling EINTR in a while loop is a canonical solution used in
many places across WebKit codebase already.
* Source/WebKit/Platform/IPC/unix/ConnectionUnix.cpp:
(IPC::readPIDFromPeer):
Canonical link: https://commits.webkit.org/284274@main
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