The program notes
A program that keeps its state when it stops and when the machine stops: a note and a count, in its private store.
Each change goes to the storage service when it happens: the program has no save action. The note is the object "note". The count is the object "count": three blocks that each hold the count in each of their 512 numbers, so that a part of one commit with a part of another would show.
Keys: a character adds to the note, Backspace removes the last one, Enter writes the note on the log. Tab counts 1000 more, one commit for each step.
Versions: each key is one commit, and the storage service keeps the state before it as a version, so the program has undo to any earlier version with no code of its own to keep them. Up shows the version before the one shown, Down the one after; Enter restores the version shown (a new commit: nothing is lost); Escape goes back to the current note. The bar under the note has one mark for each version.
| Fact | Value |
|---|---|
| Source | programs/notes |
| Boot image | in the boot image; the image is not built, so its size is not known |
| Imports | none |
| Imported by | none |
Exports
| Export | What it does |
|---|---|
| entry() |
Read from the source of the module, as the build reads it to describe the exports (tools/kerneltool/describe.odin).
What the root service gives it
| What | Value | As the root service says |
|---|---|---|
| Grants | {.Store} | |
| Budget: pages, programs, threads | {pages = 2048, programs = 1, threads = 1} | Not named in things_of: the budget of each other program. |
Read from grants_of and things_of in programs/root/main.odin; budget_of in the same file adds the limits of processor time and of log records.