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authorSverker Eriksson <[email protected]>2016-02-12 18:59:44 +0100
committerLukas Larsson <[email protected]>2016-03-29 14:57:11 +0200
commit42a7116dc64892ef4bf7a1483aa9df82d9a34439 (patch)
tree2afe4178c43ed1be1a43310532f472b869c4b7ed /erts/doc/src/erl_nif.xml
parenta2a86dadc648dda68b5221a7c1d83b9238be1e25 (diff)
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erts: Polish erl_nif docs
Diffstat (limited to 'erts/doc/src/erl_nif.xml')
-rw-r--r--erts/doc/src/erl_nif.xml69
1 files changed, 32 insertions, 37 deletions
diff --git a/erts/doc/src/erl_nif.xml b/erts/doc/src/erl_nif.xml
index 7a8325c200..1e95634d1b 100644
--- a/erts/doc/src/erl_nif.xml
+++ b/erts/doc/src/erl_nif.xml
@@ -614,13 +614,13 @@ typedef enum {
<tag><marker id="ErlNifUniqueInteger"/>ErlNifUniqueInteger</tag>
<item>
<p>An enumeration of the properties that can be requested from
- <seealso marker="#enif_unique_integer">
- enif_unique_integer</seealso>.</p>
+ <seealso marker="#enif_make_unique_integer">enif_unique_integer</seealso>.
+ For default properties, use the value <c>0</c>.</p>
<taglist>
<tag><c>ERL_NIF_UNIQUE_POSITIVE</c></tag>
- <item><p>A positive integer</p></item>
+ <item><p>Return only positive integers</p></item>
<tag><c>ERL_NIF_UNIQUE_MONOTONIC</c></tag>
- <item><p>A
+ <item><p>Return only
<seealso marker="time_correction#Strictly_Monotonically_Increasing">strictly
monotonically increasing</seealso> integer corresponding to creation time</p></item>
</taglist>
@@ -765,11 +765,10 @@ typedef enum {
rounded using the floor function.</p>
<p>Returns <c>ERL_NIF_TIME_ERROR</c> if called with an invalid
time unit argument.</p>
- <p>See also:</p>
- <list>
- <item><seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso></item>
- <item><seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso></item>
- </list>
+ <p>See also:
+ <seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso> and
+ <seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso>.
+ </p>
</desc>
</func>
@@ -842,7 +841,7 @@ typedef enum {
</func>
<func><name><ret>int</ret><nametext>enif_get_local_port(ErlNifEnv* env, ERL_NIF_TERM term, ErlNifPort* port_id)</nametext></name>
<fsummary>Read an local port term</fsummary>
- <desc><p>If <c>term</c> is the port of a node local port, initialize the
+ <desc><p>If <c>term</c> identifies a node local port, initialize the
port variable <c>*port_id</c> from it and return true. Otherwise return false.
No check if the port is alive is done.</p></desc>
</func>
@@ -1074,7 +1073,7 @@ typedef enum {
<seealso marker="#enif_is_exception">enif_is_exception</seealso>, but
not to any other NIF API function.</p>
<p>See also: <seealso marker="#enif_has_pending_exception">enif_has_pending_exception</seealso>
- and <seealso marker="#enif_raise_exception">enif_raise_exception</seealso>
+ and <seealso marker="#enif_raise_exception">enif_raise_exception</seealso>.
</p>
<note><p>In earlier versions (older than erts-7.0, OTP 18) the return value
from <c>enif_make_badarg</c> had to be returned from the NIF. This
@@ -1320,10 +1319,9 @@ typedef enum {
integer returned. It is possible to combine them by or:ing the
two values together.
</p>
- <p>See also:</p>
- <list>
- <item><seealso marker="#ErlNifUniqueInteger"><c>ErlNifUniqueInteger</c></seealso></item>
- </list>
+ <p>See also:
+ <seealso marker="#ErlNifUniqueInteger"><c>ErlNifUniqueInteger</c></seealso>.
+ </p>
</desc>
</func>
<func><name><ret>ERL_NIF_TERM</ret><nametext>enif_make_ulong(ErlNifEnv* env, unsigned long i)</nametext></name>
@@ -1408,7 +1406,7 @@ enif_map_iterator_destroy(env, &amp;iter);
<item>Time unit of returned value.</item>
</taglist>
<p>
- Returns
+ Returns the current
<seealso marker="time_correction#Erlang_Monotonic_Time">Erlang
monotonic time</seealso>. Note that it is not uncommon with
negative values.
@@ -1416,11 +1414,10 @@ enif_map_iterator_destroy(env, &amp;iter);
<p>Returns <c>ERL_NIF_TIME_ERROR</c> if called with an invalid
time unit argument, or if called from a thread that is not a
scheduler thread.</p>
- <p>See also:</p>
- <list>
- <item><seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso></item>
- <item><seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso></item>
- </list>
+ <p>See also:
+ <seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso> and
+ <seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso>.
+ </p>
</desc>
</func>
@@ -1509,10 +1506,7 @@ enif_map_iterator_destroy(env, &amp;iter);
and <c>enif_free_env</c> into one call. This optimization is only usefull
when a majority of the terms are to be copied from <c>env</c> to the <c>msg_env</c>.</p>
<p>The call may return false if it detects that the command failed for some reason. Otherwise true is returned.</p>
- <p>See also:</p>
- <list>
- <item><seealso marker="#enif_get_local_port"><c>enif_get_local_port</c></seealso></item>
- </list>
+ <p>See also: <seealso marker="#enif_get_local_port"><c>enif_get_local_port</c></seealso>.</p>
</desc>
</func>
<func><name><ret>void *</ret><nametext>enif_priv_data(ErlNifEnv* env)</nametext></name>
@@ -1649,6 +1643,8 @@ enif_map_iterator_destroy(env, &amp;iter);
of cleared for reuse with <seealso marker="#enif_clear_env">enif_clear_env</seealso>.</p>
<p>This function is only thread-safe when the emulator with SMP support is used.
It can only be used in a non-SMP emulator from a NIF-calling thread.</p>
+ <note><p>Passing <c>msg_env</c> as <c>NULL</c> is only supported since
+ erts-8.0 (OTP 19).</p></note>
</desc>
</func>
<func><name><ret>unsigned</ret><nametext>enif_sizeof_resource(void* obj)</nametext></name>
@@ -1665,13 +1661,13 @@ enif_map_iterator_destroy(env, &amp;iter);
<func><name><ret>int</ret><nametext>enif_term_to_binary(ErlNifEnv *env, ERL_NIF_TERM term, ErlNifBinary *bin)</nametext></name>
<fsummary>Convert a term to the external format</fsummary>
<desc>
- <p>Returns a binary data object that is the result of encoding <c>term</c>
- according to the Erlang external term format.</p>
- <p>See also:</p>
- <list>
- <item><seealso marker="erlang#term_to_binary-1"><c>erlang:term_to_binary/1</c></seealso></item>
- <item><seealso marker="#enif_binary_to_term"><c>enif_binary_to_term</c></seealso></item>
- </list>
+ <p>Allocates a new binary with <seealso marker="#enif_alloc_binary">enif_alloc_binary</seealso>
+ and stores the result of encoding <c>term</c> according to the Erlang external term format.</p>
+ <p>Returns true on success or false if allocation failed.</p>
+ <p>See also:
+ <seealso marker="erlang#term_to_binary-1"><c>erlang:term_to_binary/1</c></seealso> and
+ <seealso marker="#enif_binary_to_term"><c>enif_binary_to_term</c></seealso>.
+ </p>
</desc>
</func>
<func><name><ret>int</ret><nametext>enif_thread_create(char *name,ErlNifTid *tid,void * (*func)(void *),void *args,ErlNifThreadOpts *opts)</nametext></name>
@@ -1723,11 +1719,10 @@ enif_map_iterator_destroy(env, &amp;iter);
<p>Returns <c>ERL_NIF_TIME_ERROR</c> if called with an invalid
time unit argument, or if called from a thread that is not a
scheduler thread.</p>
- <p>See also:</p>
- <list>
- <item><seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso></item>
- <item><seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso></item>
- </list>
+ <p>See also:
+ <seealso marker="#ErlNifTime"><c>ErlNifTime</c></seealso> and
+ <seealso marker="#ErlNifTimeUnit"><c>ErlNifTimeUnit</c></seealso>.
+ </p>
</desc>
</func>