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Commit Graph

160 Commits

Author SHA1 Message Date
Calvin Rose
c831ecf5d2 Working implementation of process waiting with threads.
Does not require all sorts of signal handling code
that is not thread-safe and can "steal processes".

However, there is a much simpler way to add this functionality
by creating a new stream and thread for each subprocess when it is
waited on. This is perhaps _slightly_ less efficient but oh so much
simpler, since we can reuse all of our concepts from streams and there
is no need to implement a whole system around the selfpipe.
2020-12-31 11:22:18 -06:00
Calvin Rose
9e42ee153c Merge branch 'master' into HEAD 2020-12-30 12:19:13 -06:00
Calvin Rose
ab37ee6ebb Add :all option to ev/read.
Brings ev/read more in line with file/read.
2020-12-29 20:37:59 -06:00
Calvin Rose
eab5f67c5c Fix buffer with NULL data pointer issue.
Simply prevent buffers from ever having a NULL data pointer.
2020-12-13 09:33:57 -06:00
Calvin Rose
aa0de01e5f Fix some formatting and undefined behavior. 2020-12-06 14:33:08 -06:00
Calvin Rose
9d23192614 Add ev/deadline and ev/with-deadline.
This should be more useful than timeouts in real-world
use cases. The deadline system is based on fibers and is target
to much more coarse-grained (and therfor reliable) timeouts than things
like ev/sleep and timeout arguments.
2020-12-05 10:32:34 -06:00
Calvin Rose
cbdea8f331 Make os/execute cooperate with ev module.
os/execute, os/proc-wait do not block (currently posix only).
This uses the self-pipe trick to turn signals into a pollable entity.
2020-11-29 15:36:21 -06:00
Calvin Rose
a0964d44d5 Fix some valgrind errors.
A null pointer dereference and a memory leak with the line/col mapping.
2020-11-27 12:21:23 -06:00
Calvin Rose
ca7c5b8b10 ev/call uses current env as prototype of environment. 2020-11-26 21:13:41 -06:00
Calvin Rose
6c43489fb2 Fix #508 - nil fiber environment.
run-context did not handle a nil environment well, so that was fixed
and ev/call inherits the environment when creating the fiber.
2020-11-26 19:04:45 -06:00
Calvin Rose
a3e812b86d Fix #505 - bat int64 parsing.
Fixes an off-by-1 error.

Also makes windows testing hopefully a bit less flaky.
2020-11-25 09:45:46 -06:00
Calvin Rose
a3f98091c4 Fix #509
janet_fiber returns NULL if there is a bad arity, check that before
continuing.
2020-11-23 15:28:28 -06:00
Calvin Rose
53aa19a916 Several changes to move pipe creation back into ev.c 2020-11-18 10:53:36 -06:00
Calvin Rose
cff52ded58 Add JANET_ASYNC_EVENT_CANCEL
also fix bug that could cause event loop to hang.
2020-11-16 18:46:59 -06:00
Calvin Rose
078f50d45a When reading from a stream, EPIPE is considered EOS.
Before, EPIPE caused an error, but in most cases it is better
to consider it an end of stream. In the future, we may want to allow
cusomtization of this behavior with flags on the stream but for now
let's keep it simpler.
2020-11-16 16:49:27 -06:00
Calvin Rose
9ec5689d6b Don't use gcroot/unroot for tracking IO operations.
This could have bad effects in higher load situations, and
duplicates code. It is better to keep a dedicated list of
scheduled IO operations which can be efficiently added and
removed from. It also provides and easy way to enumerate
scheduled IO operations.
2020-11-16 09:30:04 -06:00
Calvin Rose
a25b030e36 Fix EPOLL implementation. 2020-11-15 19:40:47 -06:00
Calvin Rose
d7af4596e1 Move math.h include out of windows ifdef 2020-11-15 10:21:37 -06:00
Calvin Rose
a7ed3dea4b Remove some flags in os/open. 2020-11-15 10:06:20 -06:00
Calvin Rose
cdcb774dc8 Add os/pipe and os/open.
ev/pipe -> os/pipe, and os/open is a wrapper
around the open system call.
2020-11-15 09:57:29 -06:00
Calvin Rose
d199c817dc Broken Pipe error on windows should just be end of stream. 2020-11-14 16:03:51 -06:00
Calvin Rose
139e3fab25 Invert status check for (Read/Write)File 2020-11-14 15:52:01 -06:00
Calvin Rose
7a98f9aa02 Improve windows error messages on write failures. 2020-11-14 15:48:21 -06:00
Calvin Rose
b53dd67e74 Use custom pipe implementation for overlapped io. 2020-11-14 15:44:19 -06:00
Calvin Rose
d50c4ef6da Try again for windows build. 2020-11-14 15:01:52 -06:00
Calvin Rose
7d0b1955a2 typo 2020-11-14 14:55:26 -06:00
Calvin Rose
16cf7681f0 Fix some windows issues. 2020-11-14 14:40:39 -06:00
Calvin Rose
12f09ad2d7 Add ev/pipe and move stream code into ev.c
Also adds a lot to the C API and changes things up.
2020-11-14 14:29:11 -06:00
Calvin Rose
b3e88a8d80 Move read/write functions into ev.c from net.c
This code can also be used for non-network streams.
2020-11-14 11:48:23 -06:00
Calvin Rose
caa6576719 Fix formatting. 2020-11-11 15:35:44 -06:00
Calvin Rose
56b1ea3726 Include math.h to fix some bugs on 32 bit windows. 2020-11-08 19:06:35 -06:00
Calvin Rose
d6391f2d70 Get windows IOCP working for accept.
This also changes the api of servers slightly -
in light of having support for ev tasks, it is probably better
to remove the "simple" server code and replace it with some Janet
or remove it all together. While convenient, it has issues with error
handling and rigidity.
2020-11-08 18:56:13 -06:00
Calvin Rose
07910272e2 Get socket reads and writes working with IOCP. 2020-11-08 10:38:28 -06:00
Calvin Rose
8942e348bd Small change to windows ev. 2020-11-02 08:27:45 -06:00
Calvin Rose
9f27336827 Update windows ev code. 2020-11-02 08:19:53 -06:00
Calvin Rose
88c1cf3ee7 Reformat files. 2020-10-11 09:33:07 -05:00
Calvin Rose
813e3fdcfd Merge branch 'windows-ev' into ev 2020-10-11 09:32:17 -05:00
Calvin Rose
cb4903fa86 Overhaul of poll loop, redo ev/select. 2020-10-11 09:14:14 -05:00
Calvin Rose
964a800d51 More work on windows event loop code. 2020-10-06 19:07:29 -05:00
Calvin Rose
2e944931b3 Update timestamp function to work on windows. 2020-10-04 15:18:31 -05:00
Calvin Rose
db67538311 Work on getting ev support on windows. 2020-10-04 12:46:15 -05:00
Calvin Rose
191d0001f4 Add header on BSDs. 2020-09-07 15:22:18 -05:00
Calvin Rose
1a04ce33f1 Conditionally include epoll headers. 2020-09-07 13:13:28 -05:00
Calvin Rose
babfe50550 Merge branch 'master' into ev
Also add poll implementation for ev.
2020-09-07 12:52:50 -05:00
Calvin Rose
86e00e865e Merge branch 'master' into ev 2020-08-23 11:25:04 -05:00
Calvin Rose
30522bbf7d Merge branch 'master' into ev 2020-08-16 17:52:36 -05:00
Calvin Rose
fb26c9b2c4 Add ev/select and ev/rselect initial implementation.
Getting closer to a CSP implmententation. Probably
useful to move scheduling fields outside of fibers
and into an external table.
2020-08-09 00:20:27 -05:00
Calvin Rose
78ffb63429 Disallow mutlitple state machines waiting for a single fiber.
A 'select' operator will be channel based, not state machine based.
2020-08-08 07:51:46 -05:00
Calvin Rose
cb898fabf4 Set default channel size to 0. 2020-08-03 07:57:02 -05:00
Calvin Rose
742c5bb639 Use a common queue implementation.
Queues occur in three places, so we use a single
implementation rather than three separate ones. This also
has the result that janet_vm_spawn will not overflow in the case
of channel-heavy, IO-light operation.
2020-08-01 14:20:58 -05:00
Calvin Rose
297de01d95 Add preliminary channel implementation. 2020-08-01 13:13:58 -05:00
Calvin Rose
2eb2dddb59 Begin work on channels. 2020-07-26 23:45:25 -05:00
Calvin Rose
553b4d9428 Add timeouts to net functions.
Further debugging of the general timeout system, as well
as having a single fiber wait on multiple state machines (select).
2020-07-19 19:41:12 -05:00
Calvin Rose
cd197e8be3 Add ev/call.
This is a common operation, and making fibers manually can be tedious.
2020-07-06 19:13:32 -05:00
Calvin Rose
9ba94d2c6b More work on timeouts and racing listeners.
When two listeners are racing to resume the same fiber, the
first should cancel out the other.
2020-07-05 17:26:17 -05:00
Calvin Rose
ec0d0ba368 Initial UDP implementation. 2020-06-02 19:47:50 -05:00
Calvin Rose
a78af0a7fb Do not explicitly free state machines, instead return a status.
This makes it harder to have some kind of use after free issue.
2020-05-30 11:31:05 -05:00
Calvin Rose
117ae196fd Add net/flush.
Useful for simple TCP protocols (netrepl), which benefit from being able
to immediately send a message.
2020-05-28 19:22:38 -05:00
Calvin Rose
4c211c8dce More updates to the ev library. 2020-05-28 16:51:11 -05:00
Calvin Rose
b68b0a256e Start with ev module. 2020-05-28 10:39:40 -05:00