commit 68173de001c5d41c74828a426651e07cfd9e8710
author Pirama Arumuga Nainar <pirama@google.com> Wed Jan 28 12:12:36 2015 -0800
committer Pirama Arumuga Nainar <pirama@google.com> Wed Jan 28 13:48:32 2015 -0800
tree 4818ac1390ef677b03cf8c7c20aa0c51f78ab29c
parent 11e10825d1159b4c7d56bc8b4faf4164d988da44

Mark scripts as threadable or not

bug 19095896

Read embedded flag in .rs.info and use it to mark Scripts as threadable.
In compat lib path, scripts are always threadable.

Change-Id: I85a3753ffae788dbdec5fd130c20581790c4ee07

cpu_ref/rsCpuScript.cpp

diff --git a/cpu_ref/rsCpuScript.cpp b/cpu_ref/rsCpuScript.cpp
index a4e3059..3190d79 100644
--- a/cpu_ref/rsCpuScript.cpp
+++ b/cpu_ref/rsCpuScript.cpp
@@ -436,6 +436,7 @@
 #define EXPORT_FOREACH_STR "exportForEachCount: "
 #define OBJECT_SLOT_STR "objectSlotCount: "
 #define PRAGMA_STR "pragmaCount: "
+#define THREADABLE_STR "isThreadable: "
 
 // Copy up to a newline or size chars from str -> s, updating str
 // Returns s when successful and nullptr when '\0' is finally reached.
@@ -515,6 +516,9 @@
         memset(mBoundAllocs, 0, varCount * sizeof(*mBoundAllocs));
     }
 
+    mIsThreadable = mScriptExec->getThreadable();
+    //ALOGE("Script isThreadable? %d", mIsThreadable);
+
     return true;
 }
 
@@ -527,6 +531,7 @@
     size_t forEachCount = 0;
     size_t objectSlotCount = 0;
     size_t pragmaCount = 0;
+    bool isThreadable = true;
 
     const char *rsInfo = (const char *) dlsym(sharedObj, ".rs.info");
 
@@ -649,10 +654,13 @@
     }
 
 #ifdef RS_COMPATIBILITY_LIB
-    // Do not attempt to read pragmas in compat lib path
+    // Do not attempt to read pragmas or isThreadable flag in compat lib path.
+    // Neither is applicable for compat lib
     std::vector<const char *> pragmaKeys(pragmaCount);
     std::vector<const char *> pragmaValues(pragmaCount);
 
+    isThreadable = true;
+
 #else
     if (strgets(line, MAXLINE, &rsInfo) == nullptr) {
         return nullptr;
@@ -700,11 +708,31 @@
         pragmaValues[i] = pValue;
         //ALOGE("Pragma %zu: Key: '%s' Value: '%s'", i, pKey, pValue);
     }
+
+    if (strgets(line, MAXLINE, &rsInfo) == nullptr) {
+        return nullptr;
+    }
+
+    char tmpFlag[4];
+    if (sscanf(line, THREADABLE_STR "%4s", tmpFlag) != 1) {
+        ALOGE("Invalid threadable flag!: %s", line);
+        return nullptr;
+    }
+    if (strcmp(tmpFlag, "yes") == 0)
+        isThreadable = true;
+    else if (strcmp(tmpFlag, "no") == 0)
+        isThreadable = false;
+    else {
+        ALOGE("Invalid threadable flag!: %s", tmpFlag);
+        return nullptr;
+    }
+
 #endif
 
     return new ScriptExecutable(
         RSContext, fieldAddress, fieldIsObject, invokeFunctions,
-        forEachFunctions, forEachSignatures, pragmaKeys, pragmaValues);
+        forEachFunctions, forEachSignatures, pragmaKeys, pragmaValues,
+        isThreadable);
 }
 
 bool RsdCpuScriptImpl::init(char const *resName, char const *cacheDir,