Adding upstream version 115.7.0esr.upstream/115.7.0esr

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 41 insertions, 0 deletions

diff --git a/docs/nspr/reference/pr_entermonitor.rst b/docs/nspr/reference/pr_entermonitor.rst
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+PR_EnterMonitor
+===============
+
+Enters the lock associated with a specified monitor.
+
+
+Syntax
+------
+
+.. code::
+
+   #include <prmon.h>
+
+   void PR_EnterMonitor(PRMonitor *mon);
+
+
+Parameter
+~~~~~~~~~
+
+The function has the following parameter:
+
+``mon``
+   A reference to an existing structure of type :ref:`PRMonitor`.
+
+
+Description
+-----------
+
+When the calling thread returns, it will have acquired the monitor's
+lock. Attempts to acquire the lock for a monitor that is held by some
+other thread will result in the caller blocking. The operation is
+neither timed nor interruptible.
+
+If the monitor's entry count is greater than zero and the calling thread
+is recognized as the holder of the lock, :ref:`PR_EnterMonitor` increments
+the entry count by one and returns. If the entry count is greater than
+zero and the calling thread is not recognized as the holder of the lock,
+the thread is blocked until the entry count reaches zero. When the entry
+count reaches zero (or if it is already zero), the entry count is
+incremented by one and the calling thread is recorded as the lock's
+holder.