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Prefer 'namespace which' over 'info commands', as it is faster (on local tests, around 2x) and returns a single value. Many thanks to Nathan Coulter.

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introduced "ad_file" as a means to avoid unexpected tilde substitution in file names

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merged changes from the oacs-5-9 branch and resolved conflicts

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try to re-init packages on apm-load to overcome problems with blueprint updates on AOLserver

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Standardize spellings of names

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Fix spelling errors, use OpenACS

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- Use global variables to reduce lock contention on busy sites:

* $::acs::default_database replaces [nsv_get db_default_database .]

* $::acs::known_database_types replaces [nsv_get ad_known_database_types .]

- Cache db_driverkey per-thread (variable ::acs::db_driverkey($dbn))

to reduce high number of locks

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- add editor hints to keep spaces/tabs in the furture more consistent

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- optional performance boost for site-nodes:

the site-node code contains an optional performance booster,

that speeds up site-node operations froma factor of 2 to

several thousand times. The performance boost ist just

available for the time being for PostgreSQL, XOTcl2 and

NaviServer and is only activated, when these componentes

are available.

- bump version numbers

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ad_proc reform:

- use nsf::proc for defining ad_procs, when nsf::proc is available

- nsf::proc is part of the environment of XOTcl2 and provides

an efficient, C-implemented argument parser that can replace

the scripted *__arg_parser of OpenACS.

- The benefits are performance and reduced memory consumption.

* Simple functions (where the calling overhead was a large

part of the execution times can become several times faster

(e.g. db_name is 3x faster, cookie handling is 2x faster),

for functions with much db-activities the percentage will

be less.

* The memory consumption (RSS) of a site like OpenACS.org

is reduced by about 15%.

NEW (with nsf::proc)

::ad_get_cookie x: 10.93 microseconds per iteration

::ad_get_cookie ad_session_id: 21.95 microseconds per iteration

::dt_systime: 24.89 microseconds per iteration

::db_name: 8.70 microseconds per iteration

::db_string dbqd.null.g "select version() from dual": 316.66 microseconds per iteration

::ad_convert_to_html "hello world": 102.29 microseconds per iteration

OLD (without nsf::proc)

::ad_get_cookie x: 19.42 microseconds per iteration

::ad_get_cookie ad_session_id: 30.10 microseconds per iteration

::dt_systime: 27.55 microseconds per iteration

::db_name: 32.28 microseconds per iteration

::db_string dbqd.null.g "select version() from dual": 366.69 microseconds per iteration

::ad_convert_to_html "hello world": 160.51 microseconds per iteration


proc mtime cmd {set c 5000

set t [time [list time $cmd $c]];

regexp {^(-?[0-9]+) +} $t _ mS1;

set ms [expr {$mS1*1.0/$c}];

return "[format %6.2f $ms] microseconds per iteration"


set tests {

{::ad_get_cookie x} {::ad_get_cookie ad_session_id} {::dt_systime}

{::db_name} {::db_string dbqd.null.g "select version() from dual"}

{::ad_convert_to_html "hello world"}


foreach t $tests {append ::_ $t ": " [mtime $t] \n}

set ::_


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Merging back to HEAD branch oacs-5-8 (using tag vg-merge-oacs-5-8-from-20141027).

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- allow to upgrade basic startup files (openacs-4/tcl/*tcl)

to be upgraded via "install from repository" by adding

and after-upgrade callback to bootstrap-installer and

copying the files from there.

- move initialization of nsv_arrays for apm to -init file in acs-tcl

(as suggested by Peter Marklund, but never implemented)

- use double colon prefix rather than "global" statement

to denote global variables

- bump version number to 5.8.1d3

  1. … 2 more files in changeset.
file 0-acs-init.tcl was initially added on branch oacs-5-8.

file zz-postload.tcl was initially added on branch oacs-5-8.