meta-openembedded/meta-networking/recipes-connectivity/dibbler/dibbler/0001-linux-port-Rename-pthread_mutex_t-variable-lock.patch

From 630086cf1b3fba71822319a268d3711734cd6aa8 Mon Sep 17 00:00:00 2001
From: Khem Raj <raj.khem@gmail.com>
Date: Thu, 31 Jan 2019 12:56:13 -0800
Subject: [PATCH] linux-port: Rename pthread_mutex_t variable 'lock'

lock is also used by libc++ in std namespace and using it here causes
clang to fail e.g.

dibbler-client.cpp:47:25: error: reference to 'lock' is ambiguous
    pthread_mutex_lock(&lock);
                        ^
../../../../../../../workspace/sources/dibbler/Port-linux/dibbler-client.cpp:29:26: note: candidate found by name lookup is 'lock'
extern ::pthread_mutex_t lock;
                         ^
/mnt/a/yoe/build/tmp/work/aarch64-yoe-linux/dibbler/1.0.1+1.0.2RC1+gitc4b0ed52e751da7823dd9a36e91f93a6310e5525-r0/recipe-sysroot/usr/include/c++/v1/mutex:446:1: note: candidate found by name lookup is 'std::__1::lock'
lock(_L0& __l0, _L1& __l1, _L2& __l2, _L3& ...__l3)

Upstream-Status: Submitted [https://github.com/tomaszmrugalski/dibbler/pull/37]

Signed-off-by: Khem Raj <raj.khem@gmail.com>
---
 Port-linux/dibbler-client.cpp          | 6 +++---
 Port-linux/lowlevel-linux-link-state.c | 6 +++---
 2 files changed, 6 insertions(+), 6 deletions(-)

diff --git a/Port-linux/dibbler-client.cpp b/Port-linux/dibbler-client.cpp
index 78f34241..b5ebb9f0 100644
--- a/Port-linux/dibbler-client.cpp
+++ b/Port-linux/dibbler-client.cpp
@@ -26,7 +26,7 @@ using namespace std;
 
 #define IF_RECONNECTED_DETECTED -1
 
-extern pthread_mutex_t lock;
+extern pthread_mutex_t dibbler_lock;
 
 TDHCPClient* ptr = 0;
 
@@ -44,8 +44,8 @@ void signal_handler(int n) {
 #ifdef MOD_CLNT_CONFIRM
 void signal_handler_of_linkstate_change(int n) {
     Log(Notice) << "Network switch off event detected. initiating CONFIRM." << LogEnd;
-    pthread_mutex_lock(&lock);
-    pthread_mutex_unlock(&lock);
+    pthread_mutex_lock(&dibbler_lock);
+    pthread_mutex_unlock(&dibbler_lock);
 }
 #endif
 
diff --git a/Port-linux/lowlevel-linux-link-state.c b/Port-linux/lowlevel-linux-link-state.c
index 76293ea1..e6b94063 100644
--- a/Port-linux/lowlevel-linux-link-state.c
+++ b/Port-linux/lowlevel-linux-link-state.c
@@ -34,7 +34,7 @@ volatile int * notifier = 0;
 int isDone = 0;
 pthread_t parent_id;
 pthread_t ntid;
-pthread_mutex_t lock;
+pthread_mutex_t dibbler_lock;
 
 struct state {
     int id;
@@ -86,9 +86,9 @@ void link_state_changed(int ifindex)
     {
 	if (changed_links->cnt<16)
 	    changed_links->ifindex[changed_links->cnt++] = ifindex;
-	pthread_mutex_lock(&lock);
+	pthread_mutex_lock(&dibbler_lock);
 	*notifier = 1; /* notify that change has occured */
-	pthread_mutex_unlock(&lock);
+	pthread_mutex_unlock(&dibbler_lock);
 	pthread_kill(parent_id,SIGUSR1);
     } else
     {