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2010-06-08Merge branch 'pg/fix_erts_bld_string_n' into devErlang/OTP
* pg/fix_erts_bld_string_n: Fix erts_bld_string_n (called by enif_make_string and erlang:decode_packet/3) to work with 8 bits characters OTP-8685 pg/fix_erts_bld_string_n Fix bug causing erlang:decode_packet and enif_make_string to generate faulty strings with negative character values for ascii values larger than 127. (Thanks to Paul Guyot)
2010-06-07Merge branch 'ms/file-exclusive-mode' into devErlang/OTP
* ms/file-exclusive-mode: Update preloaded modules Support opening files in exclusive mode OTP-8670 ms/file-exclusive-mode There is a new option 'exclusive' to file:open/2 that uses the OS O_EXCL flag where supported to open the file in exclusive mode.
2010-06-07Fix erts_bld_string_n (called by enif_make_string and ↵Paul Guyot
erlang:decode_packet/3) to work with 8 bits characters
2010-06-07Merge OTP-8681Björn-Egil Dahlberg
2010-06-04Merge branch 'egil/call-time-trace-patterns' into devErlang/OTP
* egil/call-time-trace-patterns: Fix ops.tab to include i_return_time_trace Let trace_call_time_SUITE scheduling test be more relaxed Add documentation for call time breakpoints Fix bp_hash_put to do hash value after rehash Extend trace_call_time_SUITE with bif-tests Fix assertion in trace_pattern for bifs Teach erlang:system_info/1 to list snifs Add bif tests to call time trace tests Teach call time trace patterns to include bifs Fix BeamInstr code array in export.h Add trace call_time tests for nifs and bifs Teach call count tracing to use atomics Add first phase of trace call time test suite Add a scheduler array for BpData at BeamInstr[-4] Add search keys in breakpoints and a searchfunction Fix BeamInstr for call_time Teach call_time trace to use intruction pointers Add return_time trace and PSD deletions Remove trailing character in beam_bif_load Fix set_function_break to use correct breakpoint ... OTP-8677 egil/call-time-trace-patterns
2010-06-04Update preloaded modulesRaimo Niskanen
2010-06-04Support opening files in exclusive modeMichael Santos
Add an option that atomically tests for the existence of a file and creates it if the file does not exist, by passing the O_EXCL flag to open() on Unix and CREATE_NEW flag on Windows. Support for O_EXCL varies across platforms and filesystems. {ok, Fd} = file:open("/tmp/foo", [write,exclusive]), {error, eexist} = file:open("/tmp/foo", [write,exclusive]).
2010-06-04Fix scheduler_suspend test when schedulers online isn't equal to the amount ↵Rickard Green
of schedulers
2010-06-03Fix ops.tab to include i_return_time_traceBjörn-Egil Dahlberg
Without the instruction defined in ops the interpreter will not compile when using NO_JUMPTABLE.
2010-06-03Let trace_call_time_SUITE scheduling test be more relaxedBjörn-Egil Dahlberg
2010-06-03Add documentation for call time breakpointsBjörn-Egil Dahlberg
Documented call time breakpoints in - erlang:trace_pattern/3 - erlang:trace_info/2
2010-06-03Fix bp_hash_put to do hash value after rehashBjörn-Egil Dahlberg
If a rehash was done the old hash value was used. This was incorrect.
2010-06-03Extend trace_call_time_SUITE with bif-testsBjörn-Egil Dahlberg
2010-06-03Fix assertion in trace_pattern for bifsBjörn-Egil Dahlberg
2010-06-03Teach erlang:system_info/1 to list snifsBjörn-Egil Dahlberg
erlang:system_info(snifs) lists all static native implemented functions. The function presents the lists with three tuple values containing MFAs [{Module, Function, Arity}, ...].
2010-06-03Add bif tests to call time trace testsBjörn-Egil Dahlberg
2010-06-03Teach call time trace patterns to include bifsBjörn-Egil Dahlberg
2010-06-03Fix BeamInstr code array in export.hBjörn-Egil Dahlberg
2010-06-03Add trace call_time tests for nifs and bifsBjörn-Egil Dahlberg
2010-06-03Teach call count tracing to use atomicsBjörn-Egil Dahlberg
Call count previously used a global lock for accessing and writing its counter in the breakpoint. This is now changed to atomics instead. The change will let call count tracing and cprof to scale better when increasing the number of schedulers.
2010-06-03Add first phase of trace call time test suiteBjörn-Egil Dahlberg
2010-06-03Add a scheduler array for BpData at BeamInstr[-4]Björn-Egil Dahlberg
To solve the issue of multiple schedulers constantly updating the head pointer to the bp data wheel, each scheduler now has its own entrypoint to the wheel. This head pointer can be updated without a locking being taken. Previously there were no lock ...
2010-06-03Add search keys in breakpoints and a searchfunctionBjörn-Egil Dahlberg
2010-06-03Fix BeamInstr for call_timeBjörn-Egil Dahlberg
2010-06-03Teach call_time trace to use intruction pointersBjörn-Egil Dahlberg
call_time trace will use instruction pointers instead of breakpoint data pointers. More costly lookup but the bdt structure might be deallocated, we do not want that. Remove unnecessary pattern lock.
2010-06-03Add return_time trace and PSD deletionsBjörn-Egil Dahlberg
2010-06-03Remove trailing character in beam_bif_loadBjörn-Egil Dahlberg
2010-06-03Fix set_function_break to use correct breakpointBjörn-Egil Dahlberg
op_i_time_breakpoint is now used
2010-06-03Add processes hashes for call time breakpointsBjörn-Egil Dahlberg
Call time breakpoint tracing traces per call trace per process. - Add hashes to support the extra dimension. - Teach trace_info/2 to handle the extra information dimension.
2010-06-03Fix lock-checking for PSD call_time breakpointsBjörn-Egil Dahlberg
2010-06-03Call time breakpoint tracing frameworkBjörn-Egil Dahlberg
Initial commit with a new breakpoint instruction and PSD areas for temporary time storage during tracing.
2010-06-03OTP-8675 Fix erroneous return value from erlang:system_info(multi_scheduling)Rickard Green
erlang:system_info(multi_scheduling) sometimes erroneously returned enabled when it should have returned blocked.
2010-06-03OTP-8673 Adjust alignment of scheduler data and run queuesRickard Green
Alignment of scheduler data and run queues were adjusted.
2010-06-03OTP-8666 Enable automatic binding of schedulers when possibleRickard Green
The runtime system will by default bind schedulers to logical processors using the default_bind bind type if the amount of schedulers are at least equal to the amount of logical processors configured, binding of schedulers is supported, and a CPU topology is available at startup. NOTE: If the Erlang runtime system is the only operating system process that binds threads to logical processors, this improves the performance of the runtime system. However, if other operating system processes (as for example another Erlang runtime system) also bind threads to logical processors, there might be a performance penalty instead. If this is the case you, are are advised to unbind the schedulers using the <seealso marker="erl#+sbt">+sbtu</seealso> command line argument, or by invoking <seealso marker="erlang#system_flag_scheduler_bind_type">erlang:system_flag(schedule r_bind_type, unbound)</seealso>.
2010-06-03OTP-8555 Send message from NIFSverker Eriksson
New NIF features: Send messages from a NIF, or from thread created by NIF, to any local process (enif_send) Store terms between NIF calls (enif_alloc_env, enif_make_copy) Create binary terms with user defined memory management (enif_make_resource_binary)
2010-06-03Merge branch 'pan/otp_8579_autoimport_override' into devErlang/OTP
* origin/pan/otp_8579_autoimport_override: Update preloaded modules Update primary bootstrap Remove outcommented code from erl_lint Make port_command/3 auto-imported Remove (harmless) warnings about min/max in core applications Autoimport min/2 and max/2 Improve coverage of erl_int in testcases Change warning to error for nowarn_bif_clash compiler directive Add -compile({no_auto_import,[F/A]}) doc to compiler.xml Add some testcases to compiler to verify that overriding really happens Return nowarn_bif_clash functionality but with warning Teach erl_lint to better override BIFs with local functions and imports Teach compiler to override autoimport with import First prototype for local functions overriding autoimported OTP-8579 Local functions should override auto-imported Local and imported functions now override the autoimported BIFs when the names clash. The pre R14 behaviour was that autoimported BIFs would override local functions. To avoid that old programs change behaviour, the following will generate an error: Doing a call without explicit module name to a local function having a name clashing with the name of an autoimported BIF that was present (and autoimported) before OTP R14A Explicitly importing a function having a name clashing with the name of an autoimported BIF that was present (and autoimported) before OTP R14A Using any form of the old compiler directive nowarn_bif_clash If the BIF was added or autoimported in OTP R14A or later, overriding it with an import or a local function will only result in a warning, To resolve clashes, you can either use the explicit module name erlang to call the BIF, or you can remove the autoimport of that specific BIF by using the new compiler directive -compile({no_auto_import,[F/A]})., which makes all calls to the local or imported function without explicit module name pass without warnings or errors. The change makes it possible to add autoimported BIFs without breaking or silently changing old code in the future. However some current code ingeniously utilizing the old behaviour or the nowarn_bif_clash compiler directive, might need changing to be accepted by the compiler.
2010-06-03Merge branch 'pan/unregister_error' into devErlang/OTP
* pan/unregister_error: Add possibly missing process lock before unregistering oneself Keep process lock over trace of unregister OTP-8663 Unregister may crash VM Extreme combinations of register/unregister in a highly parallell SMP application could crash the VM. The error is corrected.
2010-06-03Merge branch 'pan/otp_8086_ms_grammar' into devErlang/OTP
* pan/otp_8086_ms_grammar: Add match_specification grammar documentation specifically for ets OTP-8086 Grammar for match specification describes tracing only The grammar for match specifications in ERTS users guide only described the tracing dialect of match specifications. An informal grammar for the ETS dialect is added.
2010-06-02Update preloaded modulesPatrik Nyblom
2010-06-02Make port_command/3 auto-importedPatrik Nyblom
2010-06-02Remove (harmless) warnings about min/max in core applicationsPatrik Nyblom
2010-06-02Autoimport min/2 and max/2Patrik Nyblom
2010-06-02Change warning to error for nowarn_bif_clash compiler directivePatrik Nyblom
2010-06-02First prototype for local functions overriding autoimportedPatrik Nyblom
Import directives still not sorted out!
2010-06-02Merge branch 'jv/autoimport-binary_to_term_2' into devErlang/OTP
* jv/autoimport-binary_to_term_2: Change binary_to_term/2 to be auto-imported OTP-8671 jv/autoimport-binary_to_term_2 Now, binary_to_term/2 is auto-imported. This will cause a compile warning if and only if a module has got a local function with that name.
2010-06-02Windows: Open files with FILE_SHARE_DELETE to get closer to UNIX semanticsJan Lehnardt
See dwShareMode on http://msdn.microsoft.com/en-us/library/aa363858(VS.85).aspx
2010-06-02Add match_specification grammar documentation specifically for etsPatrik Nyblom
2010-06-01OTP-8662 Fix ethr_rwmutex_tryrlockRickard Green
ethr_rwmutex_tryrlock() acquired and refused to acquire a lock with inverted logic. The lock was however never acquired in a thread unsafe manner. (Thanks to JR Zhang for noting this issue)
2010-06-01OTP-8661 Enable writer preferred pthread read/write locks on LinuxRickard Green
Writer preferred pthread read/write locks has been enabled on Linux.
2010-06-01OTP-8660 Increase atomic fallback locksRickard Green
The number of spinlocks used when implementing atomic fall-backs when no native atomic implementation is available has been increased from 16 to 1024.