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Working TCP echo server and client.

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Required a few changes to APIs, namely janet_root_fiber()
to get topmost fiber that is active in the current scheduler.
This is distinct from janet_current_fiber(), which gets the bottom
most fiber in the fiber stack - it might have a parent, and so cannot
be reliably resumed.
This is the kind of situation that makes symmetric coroutines more
attractive.
This commit is contained in:
Calvin Rose
2020-02-09 19:04:34 -06:00
parent 7f1f684b21
commit f4d7fd97f6
11 changed files with 341 additions and 92 deletions
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src/core/state.h
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@@ -43,6 +43,7 @@ extern JANET_THREAD_LOCAL int janet_vm_stackn;
/* The current running fiber on the current thread.
* Set and unset by janet_run. */
extern JANET_THREAD_LOCAL JanetFiber *janet_vm_fiber;
extern JANET_THREAD_LOCAL JanetFiber *janet_vm_root_fiber;
/* The current pointer to the inner most jmp_buf. The current
* return point for panics. */