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Diffstat (limited to 'docs/nspr/reference/pr_callback.rst')
| -rw-r--r-- | docs/nspr/reference/pr_callback.rst | 24 |
1 files changed, 24 insertions, 0 deletions
diff --git a/docs/nspr/reference/pr_callback.rst b/docs/nspr/reference/pr_callback.rst new file mode 100644 index 0000000000..47798a77b5 --- /dev/null +++ b/docs/nspr/reference/pr_callback.rst @@ -0,0 +1,24 @@ +PR_CALLBACKimplementation +========================= + +Used to define pointers to functions that will be implemented by the +client but called from a (different) shared library. + + +Syntax +------ + +.. code:: + + #include <prtypes.h>type PR_CALLBACKimplementation + + +Description +----------- + +Functions that are implemented in an application (or shared library) +that are intended to be called from another shared library (such as +NSPR) must be declared with the ``PR_CALLBACK`` attribute. Normally such +functions are passed by reference (pointer to function). The +``PR_CALLBACK`` attribute is included as part of the function's +definition between its return value type and the function's name. |