Introducing iomgr.

Move eventmanager and platform dependent endpoint functionality into a single
library called 'iomgr'.

This is primarily to prepare for a Windows port - where posix socket semantics
lead to poor quality code.

Mostly this is a code movement CL, with some small changes to help prepare the
way for porting:

- em style fd objects can only be held internally in iomgr, and own their memory
- added grpc_iomgr_create_endpoint_pair() to accomodate the common pattern of
creating a tcp endpoint from the output of socketpair - this will help keep
our tests portable
- separated em alarm interface into a separate file, as this part of event
manager is needed higher up the stack
- made the eventmanager bits a true singleton, simplifying API's across the
stack as there's no longer a reason to carry a pointer there.

Initial design document is here:
https://docs.google.com/document/d/1VmafcHvvrP5kwtQkz84R5yXF7u7fW-9Pn0bkSUQHDt8/edit?disco=AAAAARNByxg
	Change on 2014/12/09 by ctiller <ctiller@google.com>
-------------
Created by MOE: http://code.google.com/p/moe-java
MOE_MIGRATED_REVID=81716456

1 files changed, 3 insertions, 3 deletions

diff --git a/test/core/surface/completion_queue_test.c b/test/core/surface/completion_queue_test.c
index 6df159f697..77decdacea 100644
--- a/test/core/surface/completion_queue_test.c
+++ b/test/core/surface/completion_queue_test.c
@@ -33,12 +33,12 @@
 
 #include "src/core/surface/completion_queue.h"
 
+#include "src/core/iomgr/iomgr.h"
 #include <grpc/support/alloc.h>
 #include <grpc/support/log.h>
 #include <grpc/support/thd.h>
 #include <grpc/support/time.h>
 #include <grpc/support/useful.h>
-#include "src/core/surface/surface_em.h"
 #include "test/core/util/test_config.h"
 
 #define LOG_TEST() gpr_log(GPR_INFO, "%s", __FUNCTION__)
@@ -417,7 +417,7 @@ static void test_threading(int producers, int consumers) {
 
 int main(int argc, char **argv) {
   grpc_test_init(argc, argv);
-  grpc_surface_em_init();
+  grpc_iomgr_init();
   test_no_op();
   test_wait_empty();
   test_cq_end_read();
@@ -430,6 +430,6 @@ int main(int argc, char **argv) {
   test_threading(1, 10);
   test_threading(10, 1);
   test_threading(10, 10);
-  grpc_surface_em_shutdown();
+  grpc_iomgr_shutdown();
   return 0;
 }