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* Overhaul logging system in runtimeMarijn Haverbeke2011-04-191-115/+65
| | | | | | | | | | | | | | See https://github.com/graydon/rust/wiki/Logging-vision The runtime logging categories are now treated in the same way as modules in compiled code. Each domain now has a log_lvl that can be used to restrict the logging from that domain (will be used to allow logging to be restricted to a single domain). Features dropped (can be brought back to life if there is interest): - Logger indentation - Multiple categories per log statement - I possibly broke some of the color code -- it confuses me
* Update foregoing patches to leave rust_crate alone.Marijn Haverbeke2011-04-181-0/+83
| | | | | | | | | Apparently it can't live in the main binary, since on non-Linux platforms, dynamics libs won't find symbols in the binary. This removes the crate_map pointer from rust_crate again, and instead passes it as an extra argument to rust_start. Rustboot doesn't pass this argument, but supposedly that's okay as long as we don't actually use it on that platform.
* Make log the log level configurable per moduleMarijn Haverbeke2011-04-181-2/+2
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | This overloads the meaning of RUST_LOG to also allow 'module.submodule' or 'module.somethingelse=2' forms. The first turn on all logging for a module (loglevel 3), the second sets its loglevel to 2. Log levels are: 0: Show only errors 1: Errors and warnings 2: Errors, warnings, and notes 3: Everything, including debug logging Right now, since we only have one 'log' operation, everything happens at level 1 (warning), so the only meaningful thing that can be done with the new RUST_LOG support is disable logging (=0) for some modules. TODOS: * Language support for logging at a specific level * Also add a log level field to tasks, query the current task as well as the current module before logging (log if one of them allows it) * Revise the C logging API to conform to this set-up (globals for per-module log level, query the task level before logging, stop using a global mask) Implementation notes: Crates now contain two extra data structures. A 'module map' that contains names and pointers to the module-log-level globals for each module in the crate that logs, and a 'crate map' that points at the crate's module map, as well as at the crate maps of all external crates it depends on. These are walked by the runtime (in rust_crate.cpp) to set the currect log levels based on RUST_LOG. These module log globals are allocated as-needed whenever a log expression is encountered, and their location is hard-coded into the logging code, which compares the current level to the log statement's level, and skips over all logging code when it is lower.
* Move to macro-based logging checks in the C++ codeMarijn Haverbeke2011-04-071-5/+0
| | | | | No functions should be called for log statements that turn out to be inactive.
* Further corrections to the logging layer in runtime.Graydon Hoare2011-01-141-3/+5
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* Change log buffer butes to a symbolic const in runtime.Graydon Hoare2011-01-141-2/+2
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* Use new and delete instead of alloca(). Should put out the burning tinderbox.Patrick Walton2010-10-111-2/+3
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* Try to print backtraces on failurePatrick Walton2010-10-111-17/+25
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* Tidy up the sync dir, remove dead or mis-designed code in favour of OS ↵Graydon Hoare2010-09-081-2/+1
| | | | primitives, switch rust_kernel to use a lock/signal pair and wait rather than spin.
* Added a few utility classes, cleaned up the include order of .h files, and ↵Michael Bebenita2010-09-071-1/+2
| | | | started to make the Rust kernel own domain message queues rather than the Rust domains themselves.
* Add a "special" rust_log flag to be used for debugging in cases where the ↵Michael Bebenita2010-08-171-0/+1
| | | | full log output prevents races from occurring.
* Add vec debugging utility to _vec module.Roy Frostig2010-08-121-0/+1
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* Print domain and task names in log prefix.Michael Bebenita2010-08-111-4/+13
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* Added "none" option to rust_log env string to disable all log output.Michael Bebenita2010-08-091-0/+1
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* Log a separator when logging switches between threads.Michael Bebenita2010-07-281-2/+7
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* Back out "::ALL" default logbits.Graydon Hoare2010-07-201-1/+1
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* Added a message passing system based on lock free queues for inter-thread ↵Michael Bebenita2010-07-191-49/+128
| | | | communication. Channels now buffer on the sending side, and no longer require blocking when sending. Lots of other refactoring and bug fixes.
* Move more of the GC logic into the runtime.Graydon Hoare2010-06-281-0/+1
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* Populate tree.Graydon Hoare2010-06-231-0/+117