aboutsummaryrefslogtreecommitdiffstats
path: root/lib/kernel
diff options
context:
space:
mode:
Diffstat (limited to 'lib/kernel')
-rw-r--r--lib/kernel/doc/src/code.xml61
1 files changed, 47 insertions, 14 deletions
diff --git a/lib/kernel/doc/src/code.xml b/lib/kernel/doc/src/code.xml
index eb0f4b7a06..1bd52040a0 100644
--- a/lib/kernel/doc/src/code.xml
+++ b/lib/kernel/doc/src/code.xml
@@ -287,6 +287,46 @@
was given to <c>set_path/1</c>).</p>
</section>
+ <section>
+ <marker id="error_reasons"></marker>
+ <title>Error Reasons for Code-Loading Functions</title>
+
+ <p>Functions that load code (such as <c>load_file/1</c>) will
+ return <c>{error,Reason}</c> if the load operation fails.
+ Here follows a description of the common reasons.</p>
+
+ <taglist>
+ <tag><c>badfile</c></tag>
+ <item>
+ <p>The object code has an incorrect format or the module
+ name in the object code is not the expected module name.</p>
+ </item>
+
+ <tag><c>nofile</c></tag>
+ <item>
+ <p>No file with object code was found.</p>
+ </item>
+
+ <tag><c>not_purged</c></tag>
+ <item>
+ <p>The object code could not be loaded because an old version
+ of the code already existed.</p>
+ </item>
+
+ <tag><c>on_load_failure</c></tag>
+ <item>
+ <p>The module has an
+ <seealso marker="doc/reference_manual:code_loading#on_load">-on_load function</seealso>
+ that failed when it was called.</p>
+ </item>
+
+ <tag><c>sticky_directory</c></tag>
+ <item>
+ <p>The object code resides in a sticky directory.</p>
+ </item>
+
+ </taglist>
+ </section>
<datatypes>
<datatype>
<name name="load_ret"/>
@@ -411,12 +451,8 @@
be used to load object code with a module name that is
different from the file name.</p>
<p>Returns <c>{module, <anno>Module</anno>}</c> if successful, or
- <c>{error, nofile}</c> if no object code is found, or
- <c>{error, sticky_directory}</c> if the object code resides in
- a sticky directory. Also if the loading fails, an error tuple is
- returned. See
- <seealso marker="erts:erlang#load_module/2">erlang:load_module/2</seealso>
- for possible values of <c><anno>What</anno></c>.</p>
+ <c>{error, Reason}</c> if loading fails.
+ See <seealso marker="#error_reasons">Error Reasons for Code-Loading Functions</seealso> for a description of the possible error reasons.</p>
</desc>
</func>
<func>
@@ -428,7 +464,7 @@
<desc>
<p>Does the same as <c>load_file(<anno>Module</anno>)</c>, but
<c><anno>Filename</anno></c> is either an absolute file name, or a
- relative file name. The code path is not searched. It returns
+ relative file name. The code path is not searched. It returns
a value in the same way as
<seealso marker="#load_file/1">load_file/1</seealso>. Note
that <c><anno>Filename</anno></c> should not contain the extension (for
@@ -444,7 +480,8 @@
<seealso marker="#load_file/1">load_file/1</seealso>,
unless the module is already loaded.
In embedded mode, however, it does not load a module which is not
- already loaded, but returns <c>{error, embedded}</c> instead.</p>
+ already loaded, but returns <c>{error, embedded}</c> instead.
+ See <seealso marker="#error_reasons">Error Reasons for Code-Loading Functions</seealso> for a description of other possible error reasons.</p>
</desc>
</func>
<func>
@@ -461,12 +498,8 @@
comes. Accordingly, <c><anno>Filename</anno></c> is not opened and read by
the code server.</p>
<p>Returns <c>{module, <anno>Module</anno>}</c> if successful, or
- <c>{error, sticky_directory}</c> if the object code resides in
- a sticky directory, or <c>{error, badarg}</c> if any argument
- is invalid. Also if the loading fails, an error tuple is
- returned. See
- <seealso marker="erts:erlang#load_module/2">erlang:load_module/2</seealso>
- for possible values of <c><anno>What</anno></c>.</p>
+ <c>{error, Reason}</c> if loading fails.
+ See <seealso marker="#error_reasons">Error Reasons for Code-Loading Functions</seealso> for a description of the possible error reasons.</p>
</desc>
</func>
<func>