Add offset handling in MemoryHeapBase class
diff --git a/MemoryHeapBase.cpp b/MemoryHeapBase.cpp
index ac38f51..5df078f 100644
--- a/MemoryHeapBase.cpp
+++ b/MemoryHeapBase.cpp
@@ -78,13 +78,13 @@
}
}
-MemoryHeapBase::MemoryHeapBase(int fd, size_t size, uint32_t flags)
+MemoryHeapBase::MemoryHeapBase(int fd, size_t size, uint32_t flags, uint32_t offset)
: mFD(-1), mSize(0), mBase(MAP_FAILED), mFlags(flags),
mDevice(0), mNeedUnmap(false)
{
const size_t pagesize = getpagesize();
size = ((size + pagesize-1) & ~(pagesize-1));
- mapfd(dup(fd), size);
+ mapfd(dup(fd), size, offset);
}
status_t MemoryHeapBase::init(int fd, void *base, int size, int flags, const char* device)
@@ -100,7 +100,7 @@
return NO_ERROR;
}
-status_t MemoryHeapBase::mapfd(int fd, size_t size)
+status_t MemoryHeapBase::mapfd(int fd, size_t size, uint32_t offset)
{
if (size == 0) {
// try to figure out the size automatically
@@ -121,7 +121,7 @@
if ((mFlags & DONT_MAP_LOCALLY) == 0) {
void* base = (uint8_t*)mmap(0, size,
- PROT_READ|PROT_WRITE, MAP_SHARED, fd, 0);
+ PROT_READ|PROT_WRITE, MAP_SHARED, fd, offset);
if (base == MAP_FAILED) {
LOGE("mmap(fd=%d, size=%u) failed (%s)",
fd, uint32_t(size), strerror(errno));