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PR 1937
* buildrun.cxx (run_pass): Pass new "-d PID" option to stpd.
Set SIGHUP to SIG_IGN too.
2005-12-08 Frank Ch. Eigler <fche@elastic.org>
PR 1937
* stpd.c (main): Support new "-d" option.
(usage): Document it.
* librelay.c (driver_poll): New function to react to death of
driver process.
(stp_main_loop): Call it if "-d PID" given. Treat SIGHUP like others.
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* librelay.c: Remove all USE_PROCFS ifdefs.
(sig_usr): Signal handler for SIGUSR1.
(start_cmd): New function to handle "-c" option, forks()
off a new process then waits for SIGUSR1 to exec it.
(init_stp): Call start_cmd().
(stp_main_loop): Set a signal handler for SIGCHLD.
* stpd.c (main): Add "-t" and "-c" options.
(usage): Update with new options.
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* stpd.c main): Add enable_relayfs flag.
Turn it off with "-r".
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* librelay.c (modpath): New global. Use it for insmod only.
* stpd.c (main): Set both modpath and modname, to support
modules specified by full path name.
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* stpd.c (main): Simplify buffer size code.
* librelay.c: Major changes to support procfs instead of netlink.
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* librelay.c (open_control_channel): Set the receive buffer
to 512K, or the max allowed.
* stpd.c: Remove "-n" subbug option and change "-b" option
so you can specify buffering in different ways. Add a verbose option.
Exec the "stp_check" script.
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* librelay.c: Correct fwrite api usage.
* all: Correct copyright holder name.
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* librelay.h: Get structs and enums from
../transport/transport_msgs.h to eliminate duplication.
* librelay.c (send_request): Retry if send fails.
(open_relayfs_files): Use fopen() instead of open() for the
percpu tmpfiles.
(request_last_buffers): Just send cpu number for STP_BUF_INFO request.
(reader_thread): Ditto.
(process_subbufs): Use fwrite_unlocked() instead of write().
(sigchld): Removed.
(init_stp): Go back to using system() instead of fork and exec
to load module. When done, send a TRANSPORT_INFO request.
(cleanup_and_exit): Change parameter to simple flag to
indicate if the module needs removing.
(sigproc): Remove complicated logic and just send STP_EXIT.
(stp_main_loop): When receiving STP_TRANSPORT_INFO, set
the local params and reply with a STP_START. When
receiving STP_START, there was an error, so cleanup and exit.
* stpd.c (main): Added new options to set number of
buffers and their size.
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* stpd.c (main): Pass !quiet mode to init_stp().
* librelay.c (init_relayfs): Be quiet if !print_totals.
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* stpd.c (usage): Fix usage string.
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* librelay.c (sigchld): Signal handler to detect
completion of module loading.
(init_stp): Use fork/exec instead of system() so
we can get async signal of module load success/failure.
(cleanup_and_exit): New function.
(sigproc): If module is not loaded, don't send message to it.
(stp_main_loop): Call cleanup_and_exit() when STP_EXIT
is received. Don't send a request for the transport
mode. The module will send notification to the daemon
when it is ready.
* stpd.c (main): Don't print message until module
is loaded.
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* stpd.c (main): Add new command line arg, "-m"
to disable the per-cpu merging.
* librelay.c (merge_output): Replacement for sort_output().
Efficiently merges per-cpu streams.
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