5f3cd4079c
vm: make signal pipe nonblocking
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On the off chance the Factor end of the signal handler mechanism isn't listening, we don't want to tie up the VM because the pipe's buffer got full.
2011-11-08 22:07:22 -08:00
820fd6417d
vm: don't send foreign samples to outer space
2011-11-08 14:00:33 -08:00
90609cc5d8
vm: don't pass this to safepoint constructor
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It's bad juju and MSVC calls us out on it.
2011-11-08 11:06:00 -08:00
fc7c175c9f
new module unix.signals: app-level signal handlers
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example:
IN: scratchpad USING: unix.ffi unix.signals ;
Loading resource:basis/unix/signals/signals.factor
IN: scratchpad [ V{ "Me not that kind of orc!" "Me busy, leave me alone!" "Work work" "Zug zug" } pop print flush ] SIGINFO add-signal-handler
IN: scratchpad load: 0.60 cmd: factor 41541 running 0.28u 0.16s
Zug zug
load: 0.71 cmd: factor 41541 running 0.28u 0.16s
Work work
load: 0.71 cmd: factor 41541 running 0.28u 0.16s
Me busy, leave me alone!
load: 0.73 cmd: factor 41541 running 0.28u 0.16s
Me not that kind of orc!
2011-11-08 10:21:49 -08:00
0c58fd5c26
vm: more commentary on lock_console() stuff
2011-11-08 08:52:52 -08:00
5f811c0573
vm: don't mask SIGTTIN from stdin_loop
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Fixes #360
2011-11-08 08:42:48 -08:00
f9aa0419c4
vm: interrupt stdin_loop when entering fep
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The stdin_loop thread will keep trying to consume input unless we stop it by sending it a signal. Use SIGUSR2 to stop the read syscall and a mutex to hold up the loop while the fep is active.
2011-11-08 08:42:48 -08:00
04c6b2c393
vm: write signals to pipe immediately
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The whole point is to wake up the mx without waiting for the next safepoint derp
2011-11-08 08:42:47 -08:00
18e01f7770
vm: enqueue signals for FEP signals too
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Although SIGINT still can't interrupt the current Factor thread in a sane way, this will at least wake up the run loop when waiting for input and fix #348 when implemented at the application level.
2011-11-08 08:42:47 -08:00
72d335f2b5
vm: write async signals to pipe for multiplexer
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also factor out safepoint logic into its own file
2011-11-08 08:42:46 -08:00
92445d77e2
vm: restore sigaltstack setup on unix
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#ifdef __OpenBSD__ is different from #ifndef __OpenBSD
2011-11-03 11:57:43 -07:00
30ed9b535b
vm: parameterize sampling rate
2011-11-02 13:23:15 -07:00
1351e30e52
vm: sampling profiler timer for windows
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Spawn a thread and have it spin on the performance counter, triggering safepoints on the main thread every sample time
2011-11-02 13:23:11 -07:00
f5cdfaeb2a
vm: count samples from foreign threads
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On OS X it appears the mach exception thread and libdispatch queue threads occasionally get the SIGALRM from the itimer. Count those as foreign_thread_samples instead of letting the signal kill the process.
2011-11-02 13:23:10 -07:00
80fb7788d9
vm: groundwork for sampling profiler
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Set up the state necessary to collect samples. We still need to add GC support for walking the sample set, and the compiler needs to register GC roots before safepoints as well. We also need primitives to expose the data to Factor for reporting.
2011-11-02 13:23:06 -07:00
2d5360778f
cleanups from code review
2011-10-27 21:18:23 -07:00
9eee44ce4a
vm: remove half-assed signal queueing scaffolding
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Should implement it right later. See #297 .
2011-10-27 21:18:22 -07:00
6d57eb4f59
vm: update windows for resumable signals
2011-10-27 21:18:21 -07:00
5d59faa7d1
vm: move dispatch_signal_handler to cpu-x86.cpp
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The new signal handler dispatch is logic is CISC-centric; defer fixing it until we find someone who cares
2011-10-27 21:18:20 -07:00
dca0fd3487
vm: Revert extra canary page before callstack
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This reverts commit 7d5c8d6990385b94569116a23163d7e75ae21f49. We pretty much can't avoid unwinding frames without some more drastic redesign.
2011-10-27 21:14:50 -07:00
c3f007ce0a
vm: allocate an extra canary page before callstack
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This will let us safely unguard the callstack overflow guard page as a grace page so the callstack overflow handler can do its business without discarding frames.
2011-10-27 21:14:49 -07:00
6e4117035e
vm: factor out dispatch_signal_handler logic
2011-10-27 21:14:49 -07:00
dc42365007
vm: fep on SIGINT or SIGQUIT instead of exception
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It's not robust currently to raise an exception because a lot of our code that isn't already written with exceptions in mind breaks. Also, a signal is likely to be received by an FFI callback installed on the IO multiplexer, which will cause Factor to die since the callback cannot handle the exception. We need a more robust solution to dealing with SIGINT.
Also lay some groundwork for counting profile samples and reporting non-interrupting asynchronous signals.
2011-10-27 21:14:49 -07:00
1dc31d133b
vm: clean up signal handler dispatch
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Remove the weird and broken functions fix_callstack_top and scrub_return_address. Instead, simply decrement the SP and store the PC from the front end of the signal handler so that the back end can return back into the original context normally. Currently aborts for leaf procedure frames pending a more robust solution.
2011-10-27 21:14:48 -07:00
3726f61c70
vm: fatal_error if VM-less thread gets a signal
2011-10-27 21:14:48 -07:00
552711e903
vm: block all signals from unix stdin_loop thread
2011-10-27 21:14:47 -07:00
b3e5f75c9e
vm: handle async signals at safepoints on unix
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Factor now supports the new 4.0BSD feature of "signals".
2011-10-27 21:14:46 -07:00
99804d5e3f
vm: code_heap::(un)guard_safepoint methods
2011-10-27 21:14:44 -07:00
64252dbdbc
32 and 64 bit Linux PPC support
2011-05-23 23:36:14 -04:00
8ccaa417ab
vm/os-unix.cpp: remove dead code
2010-09-20 21:36:19 -07:00
5378f2a0c7
vm/os-unix.cpp: set pipe file descriptors to close on exec
2010-09-15 22:20:24 -07:00
7374d868e7
Change how SIGPIPE is ignored, and add a unit test to io.launcher.unix to ensure that this ignoredness is not inherited by child processes
2010-09-02 22:11:45 -07:00
d74817cedf
vm: Remove signal_callstack_top nonsense
2010-09-02 22:57:17 -05:00
1818bcb780
Fix three problems discovered by running math.floats.env tests in a loop:
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- Crash if allocating error triggers a GC from a signal/SEH handler
- Crash if GC runs with floating point traps enabled on Windows
- Floating point traps didn't prettyprint properly
2010-09-02 22:57:14 -05:00
e8d528ad93
Remove system_micros from vm, implement gmt hook on windows
2010-06-16 23:39:16 -05:00
d9d12ab8fb
vm: don't try loading Factor VM DLL anymore
2010-04-02 00:03:26 -04:00
6d8c30ad98
statically link factor executable to VM so dylib is only needed for embedding
2010-04-01 14:25:02 -07:00
43b2e02534
vm: split up TLS code and add a dummy implementation for a dummy OS known as NetBSD
2010-03-29 02:23:21 -04:00
b40382f412
vm: don't use sigaltstack() on OpenBSD because OpenBSD sucks
2010-03-28 18:26:39 -05:00
84c01e1ab3
vm: fix compilation on FreeBSD
2010-03-28 12:52:16 -04:00
9ffe0a69d1
vm: use sigaltstack to handle callstack overflow properly
2010-03-28 11:37:28 -04:00
031ea6c39c
vm: fix factor_vm::dispatch_signal()
2010-03-28 08:29:10 -04:00
19aef06741
vm: fix compilation on various Unices
2010-03-27 09:44:20 -04:00
11ddbc03a4
vm: signal handling cleanup
2010-03-27 07:33:28 -04:00
69bb81dab8
vm: clean up TLS usage
2010-03-27 03:44:40 -04:00
950eaed73a
Change the MOVE_FILE macro to a function named move_file
2010-02-03 15:12:13 -06:00
e4da687413
vm: Tweak Factor VM to compile with Microsoft Visual Studio on Windows, in addition to Mingw. Add an Nmakefile which can be used for this purpose. Rename Makefile to GNUmakefile.
2010-01-17 03:43:22 +13:00
63edd20a55
vm: eliminating register variables work in progress. Works on x86-32 with non-optimizing compiler
2009-12-19 10:59:56 +13:00
987602235e
remove sleep_micros, add sleeo_nanos to vm
2009-11-19 04:49:29 -06:00
6f7ec206a1
rename millis to system-millis, micros to system-micros, add nano-count
2009-11-18 15:58:48 -06:00
Joe Groff
Erik Charlebois
Slava Pestov
Slava Pestov
Slava Pestov
Doug Coleman