From ba607d53c6a94ea8c4c12571980c4ad159af308b Mon Sep 17 00:00:00 2001
From: Jesse Hall <jessehall@google.com>
Date: Mon, 1 Oct 2012 14:05:20 -0700
Subject: Add Fence::waitForever which logs a warning timeout, and use it

Bug: 7217641
Change-Id: If0c1a613ead307c4045a47824174bf40c72bc7d7
---
 libs/gui/BufferItemConsumer.cpp   |  2 +-
 libs/gui/CpuConsumer.cpp          |  2 +-
 libs/gui/SurfaceTexture.cpp       |  3 ++-
 libs/gui/SurfaceTextureClient.cpp | 13 ++++++++-----
 libs/ui/Fence.cpp                 | 14 ++++++++++++++
 5 files changed, 26 insertions(+), 8 deletions(-)

(limited to 'libs')

diff --git a/libs/gui/BufferItemConsumer.cpp b/libs/gui/BufferItemConsumer.cpp
index 74b684f..fdfd15e 100644
--- a/libs/gui/BufferItemConsumer.cpp
+++ b/libs/gui/BufferItemConsumer.cpp
@@ -63,7 +63,7 @@ status_t BufferItemConsumer::acquireBuffer(BufferItem *item, bool waitForFence)
     }
 
     if (waitForFence && item->mFence.get()) {
-        err = item->mFence->wait(Fence::TIMEOUT_NEVER);
+        err = item->mFence->waitForever(1000, "BufferItemConsumer::acquireBuffer");
         if (err != OK) {
             BI_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
                     strerror(-err), err);
diff --git a/libs/gui/CpuConsumer.cpp b/libs/gui/CpuConsumer.cpp
index e1a2838..710e1af 100644
--- a/libs/gui/CpuConsumer.cpp
+++ b/libs/gui/CpuConsumer.cpp
@@ -78,7 +78,7 @@ status_t CpuConsumer::lockNextBuffer(LockedBuffer *nativeBuffer) {
     int buf = b.mBuf;
 
     if (b.mFence.get()) {
-        err = b.mFence->wait(Fence::TIMEOUT_NEVER);
+        err = b.mFence->waitForever(1000, "CpuConsumer::lockNextBuffer");
         if (err != OK) {
             CC_LOGE("Failed to wait for fence of acquired buffer: %s (%d)",
                     strerror(-err), err);
diff --git a/libs/gui/SurfaceTexture.cpp b/libs/gui/SurfaceTexture.cpp
index 7daa074..8df1302 100644
--- a/libs/gui/SurfaceTexture.cpp
+++ b/libs/gui/SurfaceTexture.cpp
@@ -812,7 +812,8 @@ status_t SurfaceTexture::doGLFenceWaitLocked() const {
                 return UNKNOWN_ERROR;
             }
         } else {
-            status_t err = mCurrentFence->wait(Fence::TIMEOUT_NEVER);
+            status_t err = mCurrentFence->waitForever(1000,
+                    "SurfaceTexture::doGLFenceWaitLocked");
             if (err != NO_ERROR) {
                 ST_LOGE("doGLFenceWait: error waiting for fence: %d", err);
                 return err;
diff --git a/libs/gui/SurfaceTextureClient.cpp b/libs/gui/SurfaceTextureClient.cpp
index 18a0c10..afdbf04 100644
--- a/libs/gui/SurfaceTextureClient.cpp
+++ b/libs/gui/SurfaceTextureClient.cpp
@@ -129,15 +129,18 @@ int SurfaceTextureClient::hook_queueBuffer(ANativeWindow* window,
 int SurfaceTextureClient::hook_dequeueBuffer_DEPRECATED(ANativeWindow* window,
         ANativeWindowBuffer** buffer) {
     SurfaceTextureClient* c = getSelf(window);
+    ANativeWindowBuffer* buf;
     int fenceFd = -1;
-    int result = c->dequeueBuffer(buffer, &fenceFd);
+    int result = c->dequeueBuffer(&buf, &fenceFd);
     sp<Fence> fence(new Fence(fenceFd));
-    int waitResult = fence->wait(Fence::TIMEOUT_NEVER);
+    int waitResult = fence->waitForever(1000, "dequeueBuffer_DEPRECATED");
     if (waitResult != OK) {
-        ALOGE("hook_dequeueBuffer_DEPRECATED: Fence::wait returned an "
-                "error: %d", waitResult);
+        ALOGE("dequeueBuffer_DEPRECATED: Fence::wait returned an error: %d",
+                waitResult);
+        c->cancelBuffer(buf, -1);
         return waitResult;
     }
+    *buffer = buf;
     return result;
 }
 
@@ -751,7 +754,7 @@ status_t SurfaceTextureClient::lock(
         sp<GraphicBuffer> backBuffer(GraphicBuffer::getSelf(out));
         sp<Fence> fence(new Fence(fenceFd));
 
-        err = fence->wait(Fence::TIMEOUT_NEVER);
+        err = fence->waitForever(1000, "SurfaceTextureClient::lock");
         if (err != OK) {
             ALOGE("Fence::wait failed (%s)", strerror(-err));
             cancelBuffer(out, fenceFd);
diff --git a/libs/ui/Fence.cpp b/libs/ui/Fence.cpp
index cec5876..d2dbad2 100644
--- a/libs/ui/Fence.cpp
+++ b/libs/ui/Fence.cpp
@@ -50,6 +50,20 @@ int Fence::wait(unsigned int timeout) {
     return sync_wait(mFenceFd, timeout);
 }
 
+int Fence::waitForever(unsigned int warningTimeout, const char* logname) {
+    ATRACE_CALL();
+    if (mFenceFd == -1) {
+        return NO_ERROR;
+    }
+    int err = sync_wait(mFenceFd, warningTimeout);
+    if (err == -ETIME) {
+        ALOGE("%s: fence %d didn't signal in %u ms", logname, mFenceFd,
+                warningTimeout);
+        err = sync_wait(mFenceFd, TIMEOUT_NEVER);
+    }
+    return err;
+}
+
 sp<Fence> Fence::merge(const String8& name, const sp<Fence>& f1,
         const sp<Fence>& f2) {
     ATRACE_CALL();
-- 
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