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Add a constant for the maximum vector allocation (5 Mbyte)

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This commit is contained in:
Pieter Wuille
2017-09-06 11:25:03 -07:00
parent c1607b5df4
commit 37d800bea0
1 changed files with 5 additions and 2 deletions
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7
src/serialize.h
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@@ -25,6 +25,9 @@
static const unsigned int MAX_SIZE = 0x02000000; static const unsigned int MAX_SIZE = 0x02000000;
/** Maximum amount of memory (in bytes) to allocate at once when deserializing vectors. */
static const unsigned int MAX_VECTOR_ALLOCATE = 5000000;
/** /**
* Dummy data type to identify deserializing constructors. * Dummy data type to identify deserializing constructors.
* *
@@ -750,7 +753,7 @@ void Unserialize_impl(Stream& is, prevector<N, T>& v, const V&)
unsigned int nMid = 0; unsigned int nMid = 0;
while (nMid < nSize) while (nMid < nSize)
{ {
nMid += 5000000 / sizeof(T); nMid += MAX_VECTOR_ALLOCATE / sizeof(T);
if (nMid > nSize) if (nMid > nSize)
nMid = nSize; nMid = nSize;
v.resize_uninitialized(nMid); v.resize_uninitialized(nMid);
@@ -830,7 +833,7 @@ void Unserialize_impl(Stream& is, std::vector<T, A>& v, const V&)
unsigned int nMid = 0; unsigned int nMid = 0;
while (nMid < nSize) while (nMid < nSize)
{ {
nMid += 5000000 / sizeof(T); nMid += MAX_VECTOR_ALLOCATE / sizeof(T);
if (nMid > nSize) if (nMid > nSize)
nMid = nSize; nMid = nSize;
v.resize(nMid); v.resize(nMid);