Add doxygen to taskprocessor tests.

git-svn-id: https://origsvn.digium.com/svn/asterisk/team/mmichelson/threadpool@376498 65c4cc65-6c06-0410-ace0-fbb531ad65f3

tests/test_taskprocessor.c

@@ -36,12 +36,25 @@
 #include "asterisk/module.h"
 #include "asterisk/astobj2.h"
 
+/*!
+ * \brief userdata associated with baseline taskprocessor test
+ */
 struct task_data {
+	/* Condition used to signal to queuing thread that task was executed */
 	ast_cond_t cond;
+	/* Lock protecting the condition */
 	ast_mutex_t lock;
+	/*! Boolean indicating that the task was run */
 	int task_complete;
 };
 
+/*!
+ * \brief Queued task for baseline test.
+ *
+ * The task simply sets a boolean to indicate the
+ * task has been run and then signals a condition
+ * saying it's complete
+ */
 static int task(void *data)
 {
 	struct task_data *task_data = data;
@@ -51,6 +64,13 @@ static int task(void *data)
 	return 0;
 }
 
+/*!
+ * \brief Baseline test for default taskprocessor
+ *
+ * This test ensures that when a task is added to a taskprocessor that
+ * has been allocated with a default listener that the task gets executed
+ * as expected
+ */
 AST_TEST_DEFINE(default_taskprocessor)
 {
 	struct ast_taskprocessor *tps;
@@ -66,7 +86,7 @@ AST_TEST_DEFINE(default_taskprocessor)
 		info->category = "/main/taskprocessor/";
 		info->summary = "Test of default taskproccesor";
 		info->description =
-			"Ensures that queued tasks are executed.";
+			"Ensures that a queued task gets executed.";
 		return AST_TEST_NOT_RUN;
 	case TEST_EXECUTE:
 		break;
@@ -112,13 +132,26 @@ test_end:
 
 #define NUM_TASKS 20000
 
+/*!
+ * \brief Relevant data associated with taskprocessor load test
+ */
 static struct load_task_data {
+	/*! Condition used to indicate a task has completed executing */
 	ast_cond_t cond;
+	/*! Lock used to protect the condition */
 	ast_mutex_t lock;
+	/*! Counter of the number of completed tasks */
 	int tasks_completed;
+	/*! Storage for task-specific data */
 	int task_rand[NUM_TASKS];
 } load_task_results;
 
+/*!
+ * \brief a queued task to be used in the taskprocessor load test
+ *
+ * The task increments the number of tasks executed and puts the passed-in
+ * data into the next slot in the array of random data.
+ */
 static int load_task(void *data)
 {
 	int *randdata = data;
@@ -128,6 +161,13 @@ static int load_task(void *data)
 	return 0;
 }
 
+/*!
+ * \brief Load test for taskprocessor with default listener
+ *
+ * This test queues a large number of tasks, each with random data associated.
+ * The test ensures that all of the tasks are run and that the tasks are executed
+ * in the same order that they were queued
+ */
 AST_TEST_DEFINE(default_taskprocessor_load)
 {
 	struct ast_taskprocessor *tps;
@@ -144,7 +184,7 @@ AST_TEST_DEFINE(default_taskprocessor_load)
 		info->category = "/main/taskprocessor/";
 		info->summary = "Load test of default taskproccesor";
 		info->description =
-			"Ensure that many queued tasks are executed.";
+			"Ensure that a large number of queued tasks are executed in the proper order.";
 		return AST_TEST_NOT_RUN;
 	case TEST_EXECUTE:
 		break;
@@ -201,13 +241,23 @@ test_end:
 	return res;
 }
 
+/*!
+ * \brief Private data for the test taskprocessor listener
+ */
 struct test_listener_pvt {
+	/* Counter of number of tasks pushed to the queue */
 	int num_pushed;
+	/* Counter of number of times the queue was emptied */
 	int num_emptied;
+	/* Counter of number of times that a pushed task occurred on an empty queue */
 	int num_was_empty;
+	/* Boolean indicating whether the shutdown callback was called */
 	int shutdown;
 };
 
+/*!
+ * \brief test taskprocessor listener's alloc callback
+ */
 static void *test_alloc(struct ast_taskprocessor_listener *listener)
 {
 	struct test_listener_pvt *pvt;
@@ -216,6 +266,11 @@ static void *test_alloc(struct ast_taskprocessor_listener *listener)
 	return pvt;
 }
 
+/*!
+ * \brief test taskprocessor listener's task_pushed callback
+ *
+ * Adjusts private data's stats as indicated by the parameters.
+ */
 static void test_task_pushed(struct ast_taskprocessor_listener *listener, int was_empty)
 {
 	struct test_listener_pvt *pvt = listener->private_data;
@@ -225,18 +280,27 @@ static void test_task_pushed(struct ast_taskprocessor_listener *listener, int wa
 	}
 }
 
+/*!
+ * \brief test taskprocessor listener's emptied callback.
+ */
 static void test_emptied(struct ast_taskprocessor_listener *listener)
 {
 	struct test_listener_pvt *pvt = listener->private_data;
 	++pvt->num_emptied;
 }
 
+/*!
+ * \brief test taskprocessor listener's shutdown callback.
+ */
 static void test_shutdown(struct ast_taskprocessor_listener *listener)
 {
 	struct test_listener_pvt *pvt = listener->private_data;
 	pvt->shutdown = 1;
 }
 
+/*!
+ * \brief test taskprocessor listener's destroy callback.
+ */
 static void test_destroy(void *private_data)
 {
 	struct test_listener_pvt *pvt = private_data;
@@ -251,11 +315,27 @@ static const struct ast_taskprocessor_listener_callbacks test_callbacks = {
 	.destroy = test_destroy,
 };
 
+/*!
+ * \brief Queued task for taskprocessor listener test.
+ *
+ * Does nothing.
+ */
 static int listener_test_task(void *ignore)
 {
 	return 0;
 }
 
+/*!
+ * \brief helper to ensure that statistics the listener is keeping are what we expect
+ *
+ * \param test The currently-running test
+ * \param pvt The private data for the taskprocessor listener
+ * \param num_pushed The expected current number of tasks pushed to the processor
+ * \param num_emptied The expected current number of times the taskprocessor has become empty
+ * \param num_was_empty The expected current number of times that tasks were pushed to an empty taskprocessor
+ * \retval -1 Stats were not as expected
+ * \retval 0 Stats were as expected
+ */
 static int check_stats(struct ast_test *test, const struct test_listener_pvt *pvt, int num_pushed, int num_emptied, int num_was_empty)
 {
 	if (pvt->num_pushed != num_pushed) {
@@ -279,6 +359,15 @@ static int check_stats(struct ast_test *test, const struct test_listener_pvt *pv
 	return 0;
 }
 
+/*!
+ * \brief Test for a taskprocessor with custom listener.
+ *
+ * This test pushes tasks to a taskprocessor with a custom listener, executes the taskss,
+ * and destroys the taskprocessor.
+ *
+ * The test ensures that the listener's callbacks are called when expected and that the data
+ * being passed in is accurate.
+ */
 AST_TEST_DEFINE(taskprocessor_listener)
 {
 	struct ast_taskprocessor *tps;