tffi-dev contains the extensions to core Pharo to get Iceberg / LibGit working with Threaded FFI.

The code relies on a modified version of libPThreadedPlugin.so with a single callbackStack.

While the code can be loaded, it will not function until the modified library is present.

Ensure you have the current headless VM:

curl get.pharo.org/64/80+vmHeadlessLatest | bash

Replace libPThreadedPlugin.so with the single callbackStack version - available on request. :-)

Copy the following in to a script, e.g. tffi.st:

"Load Threaded FFI and the extensions for LibGit"
EpMonitor disableDuring:
[ 
Metacello new
	baseline: 'GtThreadedFFIDev';
	repository: 'github://feenkcom/tffi-dev/src';
	load.
].

"Alien callbacks and Threaded FFI callbacks may not be used in the same session.
The following message send must be the last thing executed before saving the image and quitting."
ThreadedFFIMigration enableThreadedFFI.

Run the script with the following:

pharo Pharo.image ../tffi.st --save --quit

As of 13 December 2019 Gtoolkit loads Threaded FFI automatically, so the equivalent script may be used

Ensure you have the current headless VM:

curl get.pharo.org/64/80+vmHeadlessLatest | bash

Replace libPThreadedPlugin.so with the single callbackStack version - available on request. :-)

EpMonitor disableDuring:
[ 
  Metacello new
    baseline: 'GToolkit';
    repository: 'github://feenkcom/gtoolkit/src';
    load.

].

"Alien callbacks and Threaded FFI callbacks may not be used in the same session.
The following message send must be the last thing executed before saving the image and quitting."
ThreadedFFIMigration enableThreadedFFI.

To then run Pharo with Bloc graphics:

./pharo Pharo.image eval --interactive --no-quit "GtWorld open."

To run Pharo with the old Morphic world:

1. Disable the suppression of the old morphic windowing system:

Start pharo using a standard VM (available with curl get.pharo.org/64/vm80 | bash).

BlNullWorldRenderer disable.

save the image.

2. Start the image with the old morphic windowing system:

./pharo-ui Pharo.image