| ********************* | |
| GPI Library Reference | |
| ********************* | |
| Cocotb contains a library called ``GPI`` (in directory :file:`src/cocotb/share/lib/gpi/`) written in C++ | |
| that is an abstraction layer for the VPI, VHPI, and FLI simulator interfaces. | |
| .. image:: diagrams/svg/cocotb_overview.svg | |
| The interaction between Python and GPI is via a Python extension module called ``simulator`` | |
| (in directory :file:`src/cocotb/share/lib/simulator/`) which provides routines for | |
| traversing the hierarchy, getting/setting an object's value, registering callbacks etc. | |
| .. doxygenfile:: gpi.h | |