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* cpp: Use #pragma once instead of #ifndef guardsBen Gamari2017-04-231-4/+1
| | | | | | | | | | | | | | This both says what we mean and silences a bunch of spurious CPP linting warnings. This pragma is supported by all CPP implementations which we support. Reviewers: austin, erikd, simonmar, hvr Reviewed By: simonmar Subscribers: rwbarton, thomie Differential Revision: https://phabricator.haskell.org/D3482
* Use C99's boolBen Gamari2016-11-291-1/+1
| | | | | | | | | | | | Test Plan: Validate on lots of platforms Reviewers: erikd, simonmar, austin Reviewed By: erikd, simonmar Subscribers: michalt, thomie Differential Revision: https://phabricator.haskell.org/D2699
* Revert "rts: add Emacs 'Local Variables' to every .c file"Simon Marlow2014-09-291-8/+0
| | | | This reverts commit 39b5c1cbd8950755de400933cecca7b8deb4ffcd.
* rts: add Emacs 'Local Variables' to every .c fileAustin Seipp2014-07-281-0/+8
| | | | | | | | This will hopefully help ensure some basic consistency in the forward by overriding buffer variables. In particular, it sets the wrap length, the offset to 4, and turns off tabs. Signed-off-by: Austin Seipp <austin@well-typed.com>
* Don't Terminate the ticker thread (#3748)Simon Marlow2010-01-271-1/+1
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* Declare RTS-private prototypes with __attribute__((visibility("hidden")))Simon Marlow2009-08-051-2/+2
| | | | | | | | | | This has no effect with static libraries, but when the RTS is in a shared library it does two things: - it prevents the function from being exposed by the shared library - internal calls to the function can use the faster non-PLT calls, because the function cannot be overriden at link time.
* RTS tidyup sweep, first phaseSimon Marlow2009-08-021-4/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | The first phase of this tidyup is focussed on the header files, and in particular making sure we are exposinng publicly exactly what we need to, and no more. - Rts.h now includes everything that the RTS exposes publicly, rather than a random subset of it. - Most of the public header files have moved into subdirectories, and many of them have been renamed. But clients should not need to include any of the other headers directly, just #include the main public headers: Rts.h, HsFFI.h, RtsAPI.h. - All the headers needed for via-C compilation have moved into the stg subdirectory, which is self-contained. Most of the headers for the rest of the RTS APIs have moved into the rts subdirectory. - I left MachDeps.h where it is, because it is so widely used in Haskell code. - I left a deprecated stub for RtsFlags.h in place. The flag structures are now exposed by Rts.h. - Various internal APIs are no longer exposed by public header files. - Various bits of dead code and declarations have been removed - More gcc warnings are turned on, and the RTS code is more warning-clean. - More source files #include "PosixSource.h", and hence only use standard POSIX (1003.1c-1995) interfaces. There is a lot more tidying up still to do, this is just the first pass. I also intend to standardise the names for external RTS APIs (e.g use the rts_ prefix consistently), and declare the internal APIs as hidden for shared libraries.
* FIX #1623: disable the timer signal when the system is idle (threaded RTS only)Simon Marlow2007-09-031-3/+3
| | | | | | | | | | Having a timer signal go off regularly is bad for power consumption, and generally bad practice anyway (it means the app cannot be completely swapped out, for example). Fortunately the threaded RTS already had a way to detect when the system was idle, so that it can trigger a GC and thereby find deadlocks. After performing the GC, we now turn off timer signals, and re-enable them again just before running any Haskell code.
* Use timer_create() for the interval timer, if availableSimon Marlow2007-03-021-2/+2
| | | | | | | | | | | This lets the threaded RTS use SIGVTALRM rather than SIGALRM for its interval timer signal, so the threaded and non-threaded RTS are compatible. It unfortunately doesn't completely fix #850/#1156, for that we really have to use a restartable sleep instead of usleep(). Also I cleaned up the timer API a little: instead of returning an error value that ultimately gets ignored, we now report errors from system calls and exit.
* new RTS flag: -V to modify the resolution of the RTS timerIan Lynagh2006-09-051-9/+2
| | | | | | | | | Fixed version of an old patch by Simon Marlow. His description read: Also, now an arbitrarily short context switch interval may now be specified, as we increase the RTS ticker's resolution to match the requested context switch interval. This also applies to +RTS -i (heap profiling) and +RTS -I (the idle GC timer). +RTS -V is actually only required for increasing the resolution of the profile timer.
* Reorganisation of the source treeSimon Marlow2006-04-071-0/+24
Most of the other users of the fptools build system have migrated to Cabal, and with the move to darcs we can now flatten the source tree without losing history, so here goes. The main change is that the ghc/ subdir is gone, and most of what it contained is now at the top level. The build system now makes no pretense at being multi-project, it is just the GHC build system. No doubt this will break many things, and there will be a period of instability while we fix the dependencies. A straightforward build should work, but I haven't yet fixed binary/source distributions. Changes to the Building Guide will follow, too.
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