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A Scalable, User-Friendly Source Control System.
5b9ad89016
We are going to use it in the SIGCHLD handler. The handler will be executed in the main thread with the non-blocking version of waitpid, while the waitforworkers thread runs the blocking version. It's possible that one of them collects a worker and makes the other error out (no child to wait). This patch handles these errors: ECHILD is ignored. EINTR needs a retry. The "pids" set is designed to be only modifiable by "waitforworkers". And we only remove items after a successful waitpid. Since a child process can only be "waitpid"-ed once. It's guaranteed that "pids.remove(p)" won't be called with duplicated "p"s. And once a "p" is removed from "pids", that "p" does not need to be killed or waited any more. |
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contrib | ||
doc | ||
hgext | ||
hgext3rd | ||
i18n | ||
mercurial | ||
tests | ||
.editorconfig | ||
.hgignore | ||
.hgsigs | ||
CONTRIBUTING | ||
CONTRIBUTORS | ||
COPYING | ||
hg | ||
hgeditor | ||
hgweb.cgi | ||
Makefile | ||
README | ||
setup.py |
Mercurial ========= Mercurial is a fast, easy to use, distributed revision control tool for software developers. Basic install: $ make # see install targets $ make install # do a system-wide install $ hg debuginstall # sanity-check setup $ hg # see help Running without installing: $ make local # build for inplace usage $ ./hg --version # should show the latest version See https://mercurial-scm.org/ for detailed installation instructions, platform-specific notes, and Mercurial user information.