diff options
Diffstat (limited to 'erts/doc/src')
| -rw-r--r-- | erts/doc/src/erl.xml | 35 | ||||
| -rw-r--r-- | erts/doc/src/erl_driver.xml | 2 | ||||
| -rw-r--r-- | erts/doc/src/erl_ext_dist.xml | 2 | ||||
| -rw-r--r-- | erts/doc/src/erl_nif.xml | 70 | ||||
| -rw-r--r-- | erts/doc/src/erl_tracer.xml | 2 | ||||
| -rw-r--r-- | erts/doc/src/erlang.xml | 255 | ||||
| -rw-r--r-- | erts/doc/src/erts_alloc.xml | 2 | ||||
| -rw-r--r-- | erts/doc/src/escript.xml | 24 | ||||
| -rw-r--r-- | erts/doc/src/notes.xml | 164 | ||||
| -rw-r--r-- | erts/doc/src/zlib.xml | 2 |
10 files changed, 467 insertions, 91 deletions
diff --git a/erts/doc/src/erl.xml b/erts/doc/src/erl.xml index 29fef7348b..e1aa5ce76e 100644 --- a/erts/doc/src/erl.xml +++ b/erts/doc/src/erl.xml @@ -4,7 +4,7 @@ <comref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -239,6 +239,13 @@ <item> <p>Useful for debugging. Prints the arguments sent to the emulator.</p> </item> + <tag><c><![CDATA[-emu_type Type]]></c></tag> + <item> + <p>Start an emulator of a different type. For example, to start + the lock-counter emualator, use <c>-emu_type lcnt</c>. (The emulator + must already be built. Use the <c>configure</c> option + <c>--enable-lock-counter</c> to build the lock-counter emulator.)</p> + </item> <tag><c><![CDATA[-env Variable Value]]></c></tag> <item> <p>Sets the host OS environment variable <c><![CDATA[Variable]]></c> to @@ -513,11 +520,11 @@ system with SMP support is available. <c>-smp auto</c> starts the Erlang runtime system with SMP support enabled if it is available and more than one logical processor is detected. - <c>-smp disable</c> starts a runtime system without SMP support.</p> + <c>-smp disable</c> starts a runtime system without SMP support. + The runtime system without SMP support is deprecated and will + be removed in a future major release.</p> <note> - <p>The runtime system with SMP support is not available on all - supported platforms. See also flag - <seealso marker="#+S"><c>+S</c></seealso>.</p> + <p>See also flag<seealso marker="#+S"><c>+S</c></seealso>.</p> </note> </item> <tag><c><![CDATA[-version]]></c> (emulator flag)</tag> @@ -1318,8 +1325,22 @@ <c><![CDATA[+sss size]]></c></tag> <item> <p>Suggested stack size, in kilowords, for scheduler threads. - Valid range is 4-8192 kilowords. The default stack size is - OS-dependent.</p> + Valid range is 20-8192 kilowords. The default suggested + stack size is 128 kilowords.</p> + </item> + <tag><marker id="dcpu_sched_thread_stack_size"/> + <c><![CDATA[+sssdcpu size]]></c></tag> + <item> + <p>Suggested stack size, in kilowords, for dirty CPU scheduler + threads. Valid range is 20-8192 kilowords. The default + suggested stack size is 40 kilowords.</p> + </item> + <tag><marker id="dio_sched_thread_stack_size"/> + <c><![CDATA[+sssdio size]]></c></tag> + <item> + <p>Suggested stack size, in kilowords, for dirty IO scheduler + threads. Valid range is 20-8192 kilowords. The default + suggested stack size is 40 kilowords.</p> </item> <tag><marker id="+stbt"/><c>+stbt BindType</c></tag> <item> diff --git a/erts/doc/src/erl_driver.xml b/erts/doc/src/erl_driver.xml index 7fbe97bc0b..5705100ab2 100644 --- a/erts/doc/src/erl_driver.xml +++ b/erts/doc/src/erl_driver.xml @@ -4,7 +4,7 @@ <cref> <header> <copyright> - <year>2001</year><year>2016</year> + <year>2001</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/erts/doc/src/erl_ext_dist.xml b/erts/doc/src/erl_ext_dist.xml index da2dc94e5b..b7090d0472 100644 --- a/erts/doc/src/erl_ext_dist.xml +++ b/erts/doc/src/erl_ext_dist.xml @@ -5,7 +5,7 @@ <header> <copyright> <year>2007</year> - <year>2016</year> + <year>2017</year> <holder>Ericsson AB, All Rights Reserved</holder> </copyright> <legalnotice> diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml index 6bb1109415..3eb3e04f33 100644 --- a/erts/doc/src/erl_nif.xml +++ b/erts/doc/src/erl_nif.xml @@ -4,7 +4,7 @@ <cref> <header> <copyright> - <year>2001</year><year>2016</year> + <year>2001</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -714,6 +714,7 @@ typedef struct { typedef struct { ErlNifResourceDtor* dtor; ErlNifResourceStop* stop; + ErlNifResourceDown* down; } ErlNifResourceTypeInit;</code> <p>Initialization structure read by <seealso marker="#enif_open_resource_type_x"> enif_open_resource_type_x</seealso>.</p> @@ -813,6 +814,29 @@ typedef enum { </item> </taglist> </item> + <tag><marker id="ErlNifHash"/><c>ErlNifHash</c></tag> + <item> + <p>An enumeration of the supported hash types that can be generated + using <seealso marker="#enif_hash"><c>enif_hash</c></seealso>. + </p> + <taglist> + <tag><c>ERL_NIF_INTERNAL_HASH</c></tag> + <item> + <p>Non-portable hash function that only guarantees the same hash + for the same term within one Erlang VM instance.</p> + <p>It takes 32-bit salt values and generates hashes within <c>0..2^32-1</c>.</p> + </item> + <tag><c>ERL_NIF_PHASH2</c></tag> + <item> + <p>Portable hash function that gives the same hash for the + same Erlang term regardless of machine architecture and ERTS version.</p> + <p><em>It ignores salt values</em> and generates hashes within <c>0..2^27-1</c>.</p> + <p>Slower than <c>ERL_NIF_INTERNAL_HASH.</c> + It corresponds to <seealso marker="erlang#phash2-1"><c>erlang:phash2/1</c></seealso>. + </p> + </item> + </taglist> + </item> </taglist> </section> @@ -1372,13 +1396,12 @@ typedef enum { <p>Returns <c>true</c> if a pending exception is associated with the environment <c>env</c>. If <c>reason</c> is a <c>NULL</c> pointer, ignore it. Otherwise, if a pending exception associated with - <c>env</c> exists, set <c>ERL_NIF_TERM</c> to which <c>reason</c> - points to the value of the exception's term. For example, if - <seealso marker="#enif_make_badarg"> + <c>env</c> exists, set <c>*reason</c> to the value of the exception + term. For example, if <seealso marker="#enif_make_badarg"> <c>enif_make_badarg</c></seealso> is called to set a pending <c>badarg</c> exception, a later call to <c>enif_has_pending_exception(env, &reason)</c> sets - <c>reason</c> to the atom <c>badarg</c>, then return <c>true</c>.</p> + <c>*reason</c> to the atom <c>badarg</c>, then return <c>true</c>.</p> <p>See also <seealso marker="#enif_make_badarg"> <c>enif_make_badarg</c></seealso> and <seealso marker="#enif_raise_exception"> @@ -1387,6 +1410,19 @@ typedef enum { </func> <func> + <name> + <ret>ErlNifUInt64</ret> + <nametext>enif_hash(ErlNifHash type, ERL_NIF_TERM term, ErlNifUInt64 salt)</nametext> + </name> + <fsummary>Hash terms.</fsummary> + <desc> + <p>Hashes <c>term</c> according to the specified + <seealso marker="#ErlNifHash"><c>ErlNifHash</c></seealso> <c>type</c>.</p> + <p>Ranges of taken salt (if any) and returned value depend on the hash type.</p> + </desc> + </func> + + <func> <name><ret>int</ret><nametext>enif_inspect_binary(ErlNifEnv* env, ERL_NIF_TERM bin_term, ErlNifBinary* bin)</nametext></name> <fsummary>Inspect the content of a binary.</fsummary> @@ -2348,20 +2384,23 @@ enif_map_iterator_destroy(env, &iter);</code> called in the two callbacks <seealso marker="#load"><c>load</c></seealso> and <seealso marker="#upgrade"><c>upgrade</c></seealso>.</p> + <p>See also <seealso marker="#enif_open_resource_type_x"> + <c>enif_open_resource_type_x</c></seealso>.</p> </desc> </func> <func> <name><ret>ErlNifResourceType *</ret> <nametext>enif_open_resource_type_x(ErlNifEnv* env, const char* name, - ErlNifResourceTypeInit* init, + const ErlNifResourceTypeInit* init, ErlNifResourceFlags flags, ErlNifResourceFlags* tried)</nametext> </name> <fsummary>Create or takeover a resource type.</fsummary> <desc> <p>Same as <seealso marker="#enif_open_resource_type"><c>enif_open_resource_type</c></seealso> - except is also accept a <c>stop</c> callback for resource types that are - used together with <seealso marker="#enif_select"><c>enif_select</c></seealso>.</p> + except it accepts additional callback functions for resource types that are + used together with <seealso marker="#enif_select"><c>enif_select</c></seealso> + and <seealso marker="#enif_monitor_process"><c>enif_monitor_process</c></seealso>.</p> <p>Argument <c>init</c> is a pointer to an <seealso marker="#ErlNifResourceTypeInit"><c>ErlNifResourceTypeInit</c></seealso> structure that contains the function pointers for destructor, down and stop callbacks @@ -2659,6 +2698,21 @@ enif_map_iterator_destroy(env, &iter);</code> the event object. This safe way of closing event objects must be used even if all notifications have been received and no further calls to <c>enif_select</c> have been made.</p> + <p>The first call to <c>enif_select</c> for a specific OS <c>event</c> will establish + a relation between the event object and the containing resource. All subsequent calls + for an <c>event</c> must pass its containing resource as argument + <c>obj</c>. The relation is dissolved when <c>enif_select</c> has + been called with <c>mode</c> as <c>ERL_NIF_SELECT_STOP</c> and the + corresponding <c>stop</c> callback has returned. A resource can contain + several event objects but one event object can only be contained within + one resource. A resource will not be destructed until all its contained relations + have been dissolved.</p> + <note> + <p>Use <seealso marker="#enif_monitor_process"><c>enif_monitor_process</c></seealso> + together with <c>enif_select</c> to detect failing Erlang + processes and prevent them from causing permanent leakage of resources + and their contained OS event objects.</p> + </note> <p>Returns a non-negative value on success where the following bits can be set:</p> <taglist> <tag><c>ERL_NIF_SELECT_STOP_CALLED</c></tag> diff --git a/erts/doc/src/erl_tracer.xml b/erts/doc/src/erl_tracer.xml index 2681a19da0..63feebb0b5 100644 --- a/erts/doc/src/erl_tracer.xml +++ b/erts/doc/src/erl_tracer.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2016</year><year>2016</year> + <year>2016</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/erts/doc/src/erlang.xml b/erts/doc/src/erlang.xml index cb2cdec606..d9cc5ef936 100644 --- a/erts/doc/src/erlang.xml +++ b/erts/doc/src/erlang.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>1996</year><year>2016</year> + <year>1996</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -1813,8 +1813,9 @@ true</pre> <fsummary>Get the call stack back-trace of the last exception.</fsummary> <type name="stack_item"/> <desc> - <p>Gets the call stack back-trace (<em>stacktrace</em>) of the - last exception in the calling process as a list of + <p>Gets the call stack back-trace (<em>stacktrace</em>) for an + exception that has just been caught + in the calling process as a list of <c>{<anno>Module</anno>,<anno>Function</anno>,<anno>Arity</anno>,<anno>Location</anno>}</c> tuples. Field <c><anno>Arity</anno></c> in the first tuple can be the argument list of that function call instead of an arity integer, @@ -1822,6 +1823,29 @@ true</pre> <p>If there has not been any exceptions in a process, the stacktrace is <c>[]</c>. After a code change for the process, the stacktrace can also be reset to <c>[]</c>.</p> + <p><c>erlang:get_stacktrace/0</c> is only guaranteed to return + a stacktrace if called (directly or indirectly) from within the + scope of a <c>try</c> expression. That is, the following call works:</p> +<pre> +try Expr +catch + C:R -> + {C,R,erlang:get_stacktrace()} +end</pre> + <p>As does this call:</p> +<pre> +try Expr +catch + C:R -> + {C,R,helper()} +end + +helper() -> + erlang:get_stacktrace().</pre> + + <warning><p>In a future release, + <c>erlang:get_stacktrace/0</c> will return <c>[]</c> if called + from outside a <c>try</c> expression.</p></warning> <p>The stacktrace is the same data as operator <c>catch</c> returns, for example:</p> <pre> @@ -2499,6 +2523,42 @@ os_prompt%</pre> </func> <func> + <name name="list_to_port" arity="1"/> + <fsummary>Convert from text representation to a port.</fsummary> + <desc> + <p>Returns a port identifier whose text representation is a + <c><anno>String</anno></c>, for example:</p> + <pre> +> <input>list_to_port("#Port<0.4>").</input> +#Port<0.4></pre> + <p>Failure: <c>badarg</c> if <c><anno>String</anno></c> contains a bad + representation of a port identifier.</p> + <warning> + <p>This BIF is intended for debugging and is not to be used + in application programs.</p> + </warning> + </desc> + </func> + + <func> + <name name="list_to_ref" arity="1"/> + <fsummary>Convert from text representation to a ref.</fsummary> + <desc> + <p>Returns a reference whose text representation is a + <c><anno>String</anno></c>, for example:</p> + <pre> +> <input>list_to_ref("#Ref<0.4192537678.4073193475.71181>").</input> +#Ref<0.4192537678.4073193475.71181></pre> + <p>Failure: <c>badarg</c> if <c><anno>String</anno></c> contains a bad + representation of a reference.</p> + <warning> + <p>This BIF is intended for debugging and is not to be used + in application programs.</p> + </warning> + </desc> + </func> + + <func> <name name="list_to_tuple" arity="1"/> <fsummary>Convert a list to a tuple.</fsummary> <desc> @@ -6088,28 +6148,60 @@ true</pre> <fsummary>Information about active processes and ports.</fsummary> <desc> <marker id="statistics_active_tasks"></marker> + <p>Returns the same as + <seealso marker="#statistics_active_tasks_all"> + <c>statistics(active_tasks_all)</c></seealso> + with the exception that no information about the dirty + IO run queue and its associated schedulers is part of + the result. That is, only tasks that are expected to be + CPU bound are part of the result.</p> + </desc> + </func> + + <func> + <name name="statistics" arity="1" clause_i="2"/> + <fsummary>Information about active processes and ports.</fsummary> + <desc> + <marker id="statistics_active_tasks_all"></marker> <p>Returns a list where each element represents the amount of active processes and ports on each run queue and its - associated scheduler. That is, the number of processes and - ports that are ready to run, or are currently running. The - element location in the list corresponds to the scheduler - and its run queue. The first element corresponds to scheduler - number 1 and so on. The information is <em>not</em> gathered - atomically. That is, the result is not necessarily a - consistent snapshot of the state, but instead quite - efficiently gathered.</p> + associated schedulers. That is, the number of processes and + ports that are ready to run, or are currently running. + Values for normal run queues and their associated schedulers + are located first in the resulting list. The first element + corresponds to scheduler number 1 and so on. If support for + dirty schedulers exist, an element with the value for the + dirty CPU run queue and its associated dirty CPU schedulers + follow and then as last element the value for the the dirty + IO run queue and its associated dirty IO schedulers follow. + The information is <em>not</em> gathered atomically. That is, + the result is not necessarily a consistent snapshot of the + state, but instead quite efficiently gathered.</p> + <note><p>Each normal scheduler has one run queue that it + manages. If dirty schedulers schedulers are supported, all + dirty CPU schedulers share one run queue, and all dirty IO + schedulers share one run queue. That is, we have multiple + normal run queues, one dirty CPU run queue and one dirty + IO run queue. Work can <em>not</em> migrate between the + different types of run queues. Only work in normal run + queues can migrate to other normal run queues. This has + to be taken into account when evaluating the result.</p></note> <p>See also <seealso marker="#statistics_total_active_tasks"> <c>statistics(total_active_tasks)</c></seealso>, <seealso marker="#statistics_run_queue_lengths"> - <c>statistics(run_queue_lengths)</c></seealso>, and + <c>statistics(run_queue_lengths)</c></seealso>, + <seealso marker="#statistics_run_queue_lengths_all"> + <c>statistics(run_queue_lengths_all)</c></seealso>, <seealso marker="#statistics_total_run_queue_lengths"> - <c>statistics(total_run_queue_lengths)</c></seealso>.</p> + <c>statistics(total_run_queue_lengths)</c></seealso>, and + <seealso marker="#statistics_total_run_queue_lengths_all"> + <c>statistics(total_run_queue_lengths_all)</c></seealso>.</p> </desc> </func> <func> - <name name="statistics" arity="1" clause_i="2"/> + <name name="statistics" arity="1" clause_i="3"/> <fsummary>Information about context switches.</fsummary> <desc> <p>Returns the total number of context switches since the @@ -6118,7 +6210,7 @@ true</pre> </func> <func> - <name name="statistics" arity="1" clause_i="3"/> + <name name="statistics" arity="1" clause_i="4"/> <fsummary>Information about exact reductions.</fsummary> <desc> <marker id="statistics_exact_reductions"></marker> @@ -6134,7 +6226,7 @@ true</pre> </func> <func> - <name name="statistics" arity="1" clause_i="4"/> + <name name="statistics" arity="1" clause_i="5"/> <fsummary>Information about garbage collection.</fsummary> <desc> <p>Returns information about garbage collection, for example:</p> @@ -6146,7 +6238,7 @@ true</pre> </func> <func> - <name name="statistics" arity="1" clause_i="5"/> + <name name="statistics" arity="1" clause_i="6"/> <fsummary>Information about I/O.</fsummary> <desc> <p>Returns <c><anno>Input</anno></c>, @@ -6157,7 +6249,7 @@ true</pre> </func> <func> - <name name="statistics" arity="1" clause_i="6"/> + <name name="statistics" arity="1" clause_i="7"/> <fsummary>Information about microstate accounting.</fsummary> <desc> <marker id="statistics_microstate_accounting"></marker> @@ -6293,7 +6385,7 @@ lists:map( </func> <func> - <name name="statistics" arity="1" clause_i="7"/> + <name name="statistics" arity="1" clause_i="8"/> <fsummary>Information about reductions.</fsummary> <desc> <marker id="statistics_reductions"></marker> @@ -6312,12 +6404,13 @@ lists:map( </func> <func> - <name name="statistics" arity="1" clause_i="8"/> + <name name="statistics" arity="1" clause_i="9"/> <fsummary>Information about the run-queues.</fsummary> <desc><marker id="statistics_run_queue"></marker> - <p>Returns the total length of the run-queues. That is, the number + <p>Returns the total length of all normal run-queues. That is, the number of processes and ports that are ready to run on all available - run-queues. The information is gathered atomically. That + normal run-queues. Dirty run queues are not part of the + result. The information is gathered atomically. That is, the result is a consistent snapshot of the state, but this operation is much more expensive compared to <seealso marker="#statistics_total_run_queue_lengths"> @@ -6327,29 +6420,63 @@ lists:map( </func> <func> - <name name="statistics" arity="1" clause_i="9"/> + <name name="statistics" arity="1" clause_i="10"/> <fsummary>Information about the run-queue lengths.</fsummary> <desc><marker id="statistics_run_queue_lengths"></marker> + <p>Returns the same as + <seealso marker="#statistics_run_queue_lengths_all"> + <c>statistics(run_queue_lengths_all)</c></seealso> + with the exception that no information about the dirty + IO run queue is part of the result. That is, only + run queues with work that is expected to be CPU bound + is part of the result.</p> + </desc> + </func> + + <func> + <name name="statistics" arity="1" clause_i="11"/> + <fsummary>Information about the run-queue lengths.</fsummary> + <desc><marker id="statistics_run_queue_lengths_all"></marker> <p>Returns a list where each element represents the amount - of processes and ports ready to run for each run queue. The - element location in the list corresponds to the run queue - of a scheduler. The first element corresponds to the run - queue of scheduler number 1 and so on. The information is - <em>not</em> gathered atomically. That is, the result is - not necessarily a consistent snapshot of the state, but - instead quite efficiently gathered.</p> + of processes and ports ready to run for each run queue. + Values for normal run queues are located first in the + resulting list. The first element corresponds to the + normal run queue of scheduler number 1 and so on. If + support for dirty schedulers exist, values for the dirty + CPU run queue and the dirty IO run queue follow (in that + order) at the end. The information is <em>not</em> + gathered atomically. That is, the result is not + necessarily a consistent snapshot of the state, but + instead quite efficiently gathered.</p> + <note><p>Each normal scheduler has one run queue that it + manages. If dirty schedulers schedulers are supported, all + dirty CPU schedulers share one run queue, and all dirty IO + schedulers share one run queue. That is, we have multiple + normal run queues, one dirty CPU run queue and one dirty + IO run queue. Work can <em>not</em> migrate between the + different types of run queues. Only work in normal run + queues can migrate to other normal run queues. This has + to be taken into account when evaluating the result.</p></note> <p>See also + <seealso marker="#statistics_run_queue_lengths"> + <c>statistics(run_queue_lengths)</c></seealso>, + <seealso marker="#statistics_total_run_queue_lengths_all"> + <c>statistics(total_run_queue_lengths_all)</c></seealso>, <seealso marker="#statistics_total_run_queue_lengths"> <c>statistics(total_run_queue_lengths)</c></seealso>, <seealso marker="#statistics_active_tasks"> - <c>statistics(active_tasks)</c></seealso>, and + <c>statistics(active_tasks)</c></seealso>, + <seealso marker="#statistics_active_tasks_all"> + <c>statistics(active_tasks_all)</c></seealso>, and <seealso marker="#statistics_total_active_tasks"> - <c>statistics(total_active_tasks)</c></seealso>.</p> + <c>statistics(total_active_tasks)</c></seealso>, + <seealso marker="#statistics_total_active_tasks_all"> + <c>statistics(total_active_tasks_all)</c></seealso>.</p> </desc> </func> <func> - <name name="statistics" arity="1" clause_i="10"/> + <name name="statistics" arity="1" clause_i="12"/> <fsummary>Information about runtime.</fsummary> <desc> <p>Returns information about runtime, in milliseconds.</p> @@ -6364,7 +6491,7 @@ lists:map( </func> <func> - <name name="statistics" arity="1" clause_i="11"/> + <name name="statistics" arity="1" clause_i="13"/> <fsummary>Information about each schedulers work time.</fsummary> <desc> <marker id="statistics_scheduler_wall_time"></marker> @@ -6485,7 +6612,7 @@ ok </func> <func> - <name name="statistics" arity="1" clause_i="12"/> + <name name="statistics" arity="1" clause_i="14"/> <fsummary>Information about each schedulers work time.</fsummary> <desc> <marker id="statistics_scheduler_wall_time_all"></marker> @@ -6510,47 +6637,47 @@ ok </desc> </func> <func> - <name name="statistics" arity="1" clause_i="13"/> + <name name="statistics" arity="1" clause_i="15"/> <fsummary>Information about active processes and ports.</fsummary> <desc><marker id="statistics_total_active_tasks"></marker> - <p>Returns the total amount of active processes and ports in - the system. That is, the number of processes and ports that - are ready to run, or are currently running. The information - is <em>not</em> gathered atomically. That is, the result - is not necessarily a consistent snapshot of the state, but - instead quite efficiently gathered.</p> - <p>See also - <seealso marker="#statistics_active_tasks"> - <c>statistics(active_tasks)</c></seealso>, - <seealso marker="#statistics_run_queue_lengths"> - <c>statistics(run_queue_lengths)</c></seealso>, and - <seealso marker="#statistics_total_run_queue_lengths"> - <c>statistics(total_run_queue_lengths)</c></seealso>.</p> + <p>The same as calling + <c>lists:sum(</c><seealso marker="#statistics_active_tasks"><c>statistics(active_tasks)</c></seealso><c>)</c>, + but more efficient.</p> </desc> </func> <func> - <name name="statistics" arity="1" clause_i="14"/> + <name name="statistics" arity="1" clause_i="16"/> + <fsummary>Information about active processes and ports.</fsummary> + <desc><marker id="statistics_total_active_tasks_all"></marker> + <p>The same as calling + <c>lists:sum(</c><seealso marker="#statistics_active_tasks_all"><c>statistics(active_tasks_all)</c></seealso><c>)</c>, + but more efficient.</p> + </desc> + </func> + + <func> + <name name="statistics" arity="1" clause_i="17"/> <fsummary>Information about the run-queue lengths.</fsummary> <desc><marker id="statistics_total_run_queue_lengths"></marker> - <p>Returns the total length of the run queues. That is, the number - of processes and ports that are ready to run on all available - run queues. The information is <em>not</em> gathered atomically. - That is, the result is not necessarily a consistent snapshot of - the state, but much more efficiently gathered compared to - <seealso marker="#statistics_run_queue"> - <c>statistics(run_queue)</c></seealso>.</p> - <p>See also <seealso marker="#statistics_run_queue_lengths"> - <c>statistics(run_queue_lengths)</c></seealso>, - <seealso marker="#statistics_total_active_tasks"> - <c>statistics(total_active_tasks)</c></seealso>, and - <seealso marker="#statistics_active_tasks"> - <c>statistics(active_tasks)</c></seealso>.</p> + <p>The same as calling + <c>lists:sum(</c><seealso marker="#statistics_run_queue_lengths"><c>statistics(run_queue_lengths)</c></seealso><c>)</c>, + but more efficient.</p> </desc> </func> <func> - <name name="statistics" arity="1" clause_i="15"/> + <name name="statistics" arity="1" clause_i="18"/> + <fsummary>Information about the run-queue lengths.</fsummary> + <desc><marker id="statistics_total_run_queue_lengths_all"></marker> + <p>The same as calling + <c>lists:sum(</c><seealso marker="#statistics_run_queue_lengths_all"><c>statistics(run_queue_lengths_all)</c></seealso><c>)</c>, + but more efficient.</p> + </desc> + </func> + + <func> + <name name="statistics" arity="1" clause_i="19"/> <fsummary>Information about wall clock.</fsummary> <desc> <p>Returns information about wall clock. <c>wall_clock</c> can diff --git a/erts/doc/src/erts_alloc.xml b/erts/doc/src/erts_alloc.xml index b11328c3a8..d3f725ef99 100644 --- a/erts/doc/src/erts_alloc.xml +++ b/erts/doc/src/erts_alloc.xml @@ -4,7 +4,7 @@ <cref> <header> <copyright> - <year>2002</year><year>2016</year> + <year>2002</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> diff --git a/erts/doc/src/escript.xml b/erts/doc/src/escript.xml index 1d5d280338..9b0d42185e 100644 --- a/erts/doc/src/escript.xml +++ b/erts/doc/src/escript.xml @@ -4,7 +4,7 @@ <comref> <header> <copyright> - <year>2007</year><year>2016</year> + <year>2007</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -35,6 +35,28 @@ <p><c>escript</c> provides support for running short Erlang programs without having to compile them first, and an easy way to retrieve the command-line arguments.</p> + + <p>It is possible to bundle <c>escript</c>(s) with an Erlang + runtime system to make it self-sufficient and relocatable. In such + a standalone system, the <c>escript</c>(s) should be located in + the top <c>bin</c> directory of the standalone system and given + <c>.escript</c> as file extension. Further the (built-in) + <c>escript</c> program should be copied to the same directory and + given the scripts original name (without the <c>.escript</c> + extension). This will enable use of the bundled Erlang runtime + system.</p> + + <p>The (built-in) <c>escript</c> program first determines which + Erlang runtime system to use and then starts it to execute your + script. Usually the runtime system is located in the same Erlang + installation as the <c>escript</c> program itself. But for + standalone systems with one or more escripts it may be the case + that the <c>escript</c> program in your path actually starts the + runtime system bundled with the escript. This is intentional, and + typically happens when the standalone system <c>bin</c> directory is not + in the execution path (as it may cause its <c>erl</c> program to + override the desired one) and the <c>escript</c>(s) are referred to via + symbolic links from a <c>bin</c> directory in the path.</p> </description> <funcs> diff --git a/erts/doc/src/notes.xml b/erts/doc/src/notes.xml index f93b386392..08f6732036 100644 --- a/erts/doc/src/notes.xml +++ b/erts/doc/src/notes.xml @@ -4,7 +4,7 @@ <chapter> <header> <copyright> - <year>2004</year><year>2016</year> + <year>2004</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> @@ -32,22 +32,52 @@ <p>This document describes the changes made to the ERTS application.</p> -<section><title>Erts 8.3.1</title> +<section><title>Erts 8.3.3</title> <section><title>Fixed Bugs and Malfunctions</title> <list> <item> <p> - Trying to open a directory with file:read_file/1 on Unix - leaked a file descriptor. This bug has now been fixed.</p> + Fixed memory segment cache used for multiblock carriers. + Huge (> 2GB) memory segments could cause a VM crash. + Creation of such huge memory segments used for multiblock + carriers is however very uncommon.</p> <p> - Own Id: OTP-14308 Aux Id: ERL-383 </p> + Own Id: OTP-14360 Aux Id: ERL-401, PR-1417 </p> + </item> + <item> + <p> + Fix release note for OTP-14290 in ERTS version 8.3.1. It + was erroneously placed under "Known Bugs and Problems".</p> + <p> + Own Id: OTP-14363 Aux Id: OTP-14290 </p> </item> </list> </section> +</section> + +<section><title>Erts 8.3.2</title> - <section><title>Known Bugs and Problems</title> + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + The <c>+Bi</c> command line argument of <c>erl</c> + erroneously caused <c>SIGTERM</c> to be ignored by the VM + as well as of all its child processes. This bug was + introduced in erts version 8.3.</p> + <p> + Own Id: OTP-14358 Aux Id: OTP-14085 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 8.3.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> <list> <item> <p> @@ -58,6 +88,13 @@ <p> Own Id: OTP-14290</p> </item> + <item> + <p> + Trying to open a directory with file:read_file/1 on Unix + leaked a file descriptor. This bug has now been fixed.</p> + <p> + Own Id: OTP-14308 Aux Id: ERL-383 </p> + </item> </list> </section> @@ -1636,6 +1673,96 @@ </section> +<section><title>Erts 7.3.1.3</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + A bug has been fixed where if erlang was started +B on a + unix platform it would be killed by a SIGUSR2 signal when + creating a crash dump.</p> + <p> + Own Id: OTP-13425 Aux Id: ERL-94 </p> + </item> + <item> + <p> + Calls to <c>erl_drv_send_term()</c> or + <c>erl_drv_output_term()</c> from a non-scheduler thread + while the corresponding port was invalid caused the + emulator to enter an inconsistent state which eventually + caused an emulator crash.</p> + <p> + Own Id: OTP-13866</p> + </item> + <item> + <p>Driver and NIF operations accessing processes or ports + could cause an emulator crash when used from + non-scheduler threads. Those operations are:</p> <list> + <item><c>erl_drv_send_term()</c></item> + <item><c>driver_send_term()</c></item> + <item><c>erl_drv_output_term()</c></item> + <item><c>driver_output_term()</c></item> + <item><c>enif_send()</c></item> + <item><c>enif_port_command()</c></item> </list> + <p> + Own Id: OTP-13869</p> + </item> + <item> + <p> + Fix bug in <c>binary_to_term</c> for binaries created by + <c>term_to_binary </c> with option <c>compressed</c>. The + bug can cause <c>badarg</c> exception for a valid binary + when Erlang VM is linked against a <c>zlib</c> library of + version 1.2.9 or newer. Bug exists since OTP 17.0.</p> + <p> + Own Id: OTP-14159 Aux Id: ERL-340 </p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 7.3.1.2</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fixed a race that could cause a lost wakeup of a process + that timed out in a <c>receive ... after</c>. This bug + was introduced in ERTS version 7.0.</p> + <p> + Own Id: OTP-13798 Aux Id: OTP-11997 </p> + </item> + <item> + <p> + Fixed segfault after writing an erl crash dump.</p> + <p> + Own Id: OTP-13799</p> + </item> + </list> + </section> + +</section> + +<section><title>Erts 7.3.1.1</title> + + <section><title>Fixed Bugs and Malfunctions</title> + <list> + <item> + <p> + Fix scheduler deadlock bug in <c>ets:update_counter/4</c> + when key is not found and inserting the default object + causes the table to grow.</p> + <p> + Own Id: OTP-13731 Aux Id: ERL-188 </p> + </item> + </list> + </section> + +</section> + <section><title>Erts 7.3.1</title> <section><title>Fixed Bugs and Malfunctions</title> @@ -1887,6 +2014,31 @@ </section> +<section><title>Erts 7.2.1.1</title> + + <section><title>Improvements and New Features</title> + <list> + <item> + <p>Introduced new statistics functionality in order to + more efficiently retrieve information about run able and + active processes and ports. For more information see:</p> + <list> <item><seealso + marker="erlang#statistics_total_run_queue_lengths"><c>statistics(total_run_queue_lengths)</c></seealso></item> + <item><seealso + marker="erlang#statistics_run_queue_lengths"><c>statistics(run_queue_lengths)</c></seealso></item> + <item><seealso + marker="erlang#statistics_total_active_tasks"><c>statistics(total_active_tasks)</c></seealso></item> + <item><seealso + marker="erlang#statistics_active_tasks"><c>statistics(active_tasks)</c></seealso></item> + </list> + <p> + Own Id: OTP-13201</p> + </item> + </list> + </section> + +</section> + <section><title>Erts 7.2.1</title> <section><title>Fixed Bugs and Malfunctions</title> diff --git a/erts/doc/src/zlib.xml b/erts/doc/src/zlib.xml index 04fcc4285d..1d272c4c18 100644 --- a/erts/doc/src/zlib.xml +++ b/erts/doc/src/zlib.xml @@ -4,7 +4,7 @@ <erlref> <header> <copyright> - <year>2005</year><year>2016</year> + <year>2005</year><year>2017</year> <holder>Ericsson AB. All Rights Reserved.</holder> </copyright> <legalnotice> |