Prepare for more smart pointers: shared_ptr instead of unique_ptr.

native/src/impl/file_local.cpp

@@ -256,7 +256,7 @@ LocalFileLinux::xx_readv(const ReadList& requests, bool parallel_ok, bool immuta
   // terms of the other is an implementation detail.
   if (!parallel_ok || requests.size() < 2) {
     for (const ReadRequest& r : requests) {
-      std::unique_ptr<char[]> data(new char[r.size]);
+      std::shared_ptr<char> data(new char[r.size]);
       this->LocalFileLinux::xx_read(data.get(), r.offset, r.size, usagehint);
       r.delivery(data.get(), r.size);
     }
@@ -292,7 +292,7 @@ LocalFileLinux::xx_readv(const ReadList& requests, bool parallel_ok, bool immuta
     MTGuard guard;
 #pragma omp parallel num_threads(threadcount)
     {
-      std::unique_ptr<char[]> data(new char[maxsize]);
+      std::shared_ptr<char> data(new char[maxsize]);
 #pragma omp for
       for (std::int64_t ii=0; ii<requestcount; ++ii) {
         const ReadRequest& r = requests[ii];

native/src/impl/file_sd.cpp

@@ -1153,7 +1153,7 @@ SeismicStoreFile::xx_readv(const ReadList& requests, bool parallel_ok, bool immu
 #if 0
   // For now just implement xx_readv in terms of xx_read.
   for (const ReadRequest& r : requests) {
-    std::unique_ptr<char[]> data(new char[r.size]);
+    std::shared_ptr<char> data(new char[r.size]);
     this->SeismicStoreFile::xx_read(data.get(), r.offset, r.size, usagehint);
     r.delivery(data.get(), r.size);
   }
@@ -1220,7 +1220,7 @@ SeismicStoreFile::xx_readv(const ReadList& requests, bool parallel_ok, bool immu
                       return std::max(a, b.local_size + b.outpos);
                     });
 
-  std::unique_ptr<char[]> data(new char[realsize]);
+  std::shared_ptr<char> data(new char[realsize]);
 
   if (this->_config->_debug_trace)
     this->_config->_debug_trace("readv", /*need=*/asked, /*want=*/realsize,/*parts*/ work.size(), this->_dataset->info()->allSizes(-1));
@@ -1808,7 +1808,7 @@ SeismicStoreFileDelayedWrite::xx_readv(const ReadList& requests, bool parallel_o
     // of xx_read() or vice versa. Because this is an implementation
     // detail and overriding one of them should not affect the other.
     for (const ReadRequest& r : requests) {
-      std::unique_ptr<char> data(new char[r.size]);
+      std::shared_ptr<char> data(new char[r.size]);
       this->SeismicStoreFileDelayedWrite::xx_read(data.get(), r.offset, r.size, usagehint);
       r.delivery(data.get(), r.size);
     }