git: HAMMER: Add "hammer abort-cleanup" command

John Marino marino at
Wed May 20 01:21:53 PDT 2015

commit a360fddeb570fb9649151b00d79c90c61a6d3eab
Author: John Marino <draco at>
Date:   Sun Apr 5 13:06:49 2015 +0200

    HAMMER: Add "hammer abort-cleanup" command
    A new command has been added to HAMMER: abort-cleanup.  As could be
    deduced from its name, this command will terminate all active cleanup
    operations.  It takes no arguments.
    It works by searching the /var/run directory for pidfiles starting with
    "hammer.cleanup.".  It gets the pid from the filename rather than by
    reading the contents of the pidfile.  Once the pid is obtained, the
    SIGTERM signal is set to it.  Any successfully terminated process will
    be announced on stdout.
    The SIGINT signal could also be used, but this one does not print
    "Terminated" on the process's terminal, which I find useful.
    Currently if the cleanup is interrupted another way, the pidfile will
    not be removed.  These hammer.cleanup pidfiles will accumulate until
    the next "hammer abort-cleanup" command is executed.  Stale pidfiles
    will be removed if encountered by abort-cleanup command.

Summary of changes:
 sbin/hammer/Makefile      |  2 +-
 sbin/hammer/cmd_abort.c   | 97 +++++++++++++++++++++++++++++++++++++++++++++++
 sbin/hammer/cmd_cleanup.c | 16 +++++++-
 sbin/hammer/hammer.8      |  7 +++-
 sbin/hammer/hammer.c      |  7 +++-
 sbin/hammer/hammer.h      |  3 +-
 sbin/hammer/hammer_util.h |  7 ++++
 7 files changed, 131 insertions(+), 8 deletions(-)
 create mode 100644 sbin/hammer/cmd_abort.c

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