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use CheckMemory() to avoid crash due to memory allocation problem

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This commit is contained in:
eap 2011-05-04 09:33:50 +00:00
parent bce4a113cf
commit b0e0902d31
1 changed files with 25 additions and 22 deletions
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47
src/SMDS/SMDS_Mesh.cxx
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@ -58,7 +58,7 @@ using namespace std;
#endif
// number of added entities to check memory after
#define CHECKMEMORY_INTERVAL 1000
#define CHECKMEMORY_INTERVAL 100000
vector<SMDS_Mesh*> SMDS_Mesh::_meshList = vector<SMDS_Mesh*>();
int SMDS_Mesh::chunkSize = 1024;
@ -80,35 +80,38 @@ int SMDS_Mesh::CheckMemory(const bool doNotRaise) throw (std::bad_alloc)
if ( err )
return -1;
const unsigned long Mbyte = 1024 * 1024;
static int limit = -1;
if ( limit < 0 ) {
int status = system("SMDS_MemoryLimit"); // it returns lower limit of free RAM
if (status >= 0 ) {
limit = WEXITSTATUS(status);
}
else {
double factor = ( si.totalswap == 0 ) ? 0.1 : 0.2;
limit = int(( factor * si.totalram * si.mem_unit ) / Mbyte );
}
if ( limit < 20 )
limit = 20;
else
limit = int( limit * 1.5 );
#ifdef _DEBUG_
limit = limit * 2;
MESSAGE ( "SMDS_Mesh::CheckMemory() memory limit = " << limit << " MB" );
#endif
}
const unsigned long Mbyte = 1024 * 1024;
// compute separately to avoid overflow
int freeMb =
( si.freeram * si.mem_unit ) / Mbyte +
( si.freeswap * si.mem_unit ) / Mbyte;
//cout << "freeMb = " << freeMb << " limit = " << limit << endl;
if ( freeMb > limit )
return freeMb - limit;
if ( doNotRaise )
return 0;
#ifdef _DEBUG_
MESSAGE ("SMDS_Mesh::CheckMemory() throws as free memory too low: " << freeMb <<" MB" );
#endif
throw std::bad_alloc();
#else
return -1;
@ -268,7 +271,7 @@ SMDS_Mesh0DElement* SMDS_Mesh::Add0DElementWithID(const SMDS_MeshNode * n, int I
{
if (!n) return 0;
//if (my0DElements.Extent() % CHECKMEMORY_INTERVAL == 0) CheckMemory();
if (Nb0DElements() % CHECKMEMORY_INTERVAL == 0) CheckMemory();
//MESSAGE("Add0DElementWithID" << ID)
SMDS_Mesh0DElement * el0d = new SMDS_Mesh0DElement(n);
if (myElementIDFactory->BindID(ID, el0d)) {
@ -475,7 +478,7 @@ SMDS_MeshFace* SMDS_Mesh::AddFaceWithID(const SMDS_MeshEdge * e1,
return NULL;
if ( !e1 || !e2 || !e3 ) return 0;
//if ( myFaces.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbFaces() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
MESSAGE("AddFaceWithID" << ID);
SMDS_MeshFace * face = new SMDS_FaceOfEdges(e1,e2,e3);
@ -521,7 +524,7 @@ SMDS_MeshFace* SMDS_Mesh::AddFaceWithID(const SMDS_MeshEdge * e1,
return NULL;
MESSAGE("AddFaceWithID" << ID);
if ( !e1 || !e2 || !e3 || !e4 ) return 0;
//if ( myFaces.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbFaces() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
SMDS_MeshFace * face = new SMDS_FaceOfEdges(e1,e2,e3,e4);
adjustmyCellsCapacity(ID);
myCells[ID] = face;
@ -591,7 +594,7 @@ SMDS_MeshVolume* SMDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
//MESSAGE("AddVolumeWithID " << ID);
SMDS_MeshVolume* volume = 0;
if ( !n1 || !n2 || !n3 || !n4) return volume;
//if ( myVolumes.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbVolumes() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if(hasConstructionFaces()) {
SMDS_MeshFace * f1=FindFaceOrCreate(n1,n2,n3);
SMDS_MeshFace * f2=FindFaceOrCreate(n1,n2,n4);
@ -698,7 +701,7 @@ SMDS_MeshVolume* SMDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
//MESSAGE("AddVolumeWithID " << ID);
SMDS_MeshVolume* volume = 0;
if ( !n1 || !n2 || !n3 || !n4 || !n5) return volume;
//if ( myVolumes.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbVolumes() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if(hasConstructionFaces()) {
SMDS_MeshFace * f1=FindFaceOrCreate(n1,n2,n3,n4);
SMDS_MeshFace * f2=FindFaceOrCreate(n1,n2,n5);
@ -810,7 +813,7 @@ SMDS_MeshVolume* SMDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
//MESSAGE("AddVolumeWithID " << ID);
SMDS_MeshVolume* volume = 0;
if ( !n1 || !n2 || !n3 || !n4 || !n5 || !n6) return volume;
//if ( myVolumes.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbVolumes() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if(hasConstructionFaces()) {
SMDS_MeshFace * f1=FindFaceOrCreate(n1,n2,n3);
SMDS_MeshFace * f2=FindFaceOrCreate(n4,n5,n6);
@ -935,7 +938,7 @@ SMDS_MeshVolume* SMDS_Mesh::AddVolumeWithID(const SMDS_MeshNode * n1,
//MESSAGE("AddVolumeWithID " << ID);
SMDS_MeshVolume* volume = 0;
if ( !n1 || !n2 || !n3 || !n4 || !n5 || !n6 || !n7 || !n8) return volume;
//if ( myVolumes.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbVolumes() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if(hasConstructionFaces()) {
SMDS_MeshFace * f1=FindFaceOrCreate(n1,n2,n3,n4);
SMDS_MeshFace * f2=FindFaceOrCreate(n5,n6,n7,n8);
@ -1018,7 +1021,7 @@ SMDS_MeshVolume* SMDS_Mesh::AddVolumeWithID(const SMDS_MeshFace * f1,
if (!hasConstructionFaces())
return NULL;
if ( !f1 || !f2 || !f3 || !f4) return 0;
//if ( myVolumes.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbVolumes() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
SMDS_MeshVolume * volume = new SMDS_VolumeOfFaces(f1,f2,f3,f4);
adjustmyCellsCapacity(ID);
myCells[ID] = volume;
@ -1066,7 +1069,7 @@ SMDS_MeshVolume* SMDS_Mesh::AddVolumeWithID(const SMDS_MeshFace * f1,
if (!hasConstructionFaces())
return NULL;
if ( !f1 || !f2 || !f3 || !f4 || !f5) return 0;
//if ( myVolumes.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbVolumes() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
SMDS_MeshVolume * volume = new SMDS_VolumeOfFaces(f1,f2,f3,f4,f5);
adjustmyCellsCapacity(ID);
myCells[ID] = volume;
@ -1116,7 +1119,7 @@ SMDS_MeshVolume* SMDS_Mesh::AddVolumeWithID(const SMDS_MeshFace * f1,
if (!hasConstructionFaces())
return NULL;
if ( !f1 || !f2 || !f3 || !f4 || !f5 || !f6) return 0;
//if ( myVolumes.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbVolumes() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
SMDS_MeshVolume * volume = new SMDS_VolumeOfFaces(f1,f2,f3,f4,f5,f6);
adjustmyCellsCapacity(ID);
myCells[ID] = volume;
@ -1156,7 +1159,7 @@ SMDS_MeshFace* SMDS_Mesh::AddPolygonalFaceWithID
{
SMDS_MeshFace * face;
//if ( myFaces.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbFaces() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if (hasConstructionEdges())
{
MESSAGE("Error : Not implemented");
@ -1246,7 +1249,7 @@ SMDS_MeshVolume* SMDS_Mesh::AddPolyhedralVolumeWithID
const int ID)
{
SMDS_MeshVolume* volume;
//if ( myVolumes.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbVolumes() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if (hasConstructionFaces())
{
MESSAGE("Error : Not implemented");
@ -1445,7 +1448,7 @@ SMDS_MeshFace * SMDS_Mesh::createTriangle(const SMDS_MeshNode * node1,
int ID)
{
if ( !node1 || !node2 || !node3) return 0;
// if ( myFaces.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbFaces() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if(hasConstructionEdges())
{
SMDS_MeshEdge *edge1, *edge2, *edge3;
@ -1498,7 +1501,7 @@ SMDS_MeshFace * SMDS_Mesh::createQuadrangle(const SMDS_MeshNode * node1,
int ID)
{
if ( !node1 || !node2 || !node3 || !node4 ) return 0;
// if ( myFaces.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbFaces() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if(hasConstructionEdges())
{
//MESSAGE("createQuadrangle hasConstructionEdges "<< ID);
@ -1828,7 +1831,7 @@ SMDS_MeshEdge* SMDS_Mesh::FindEdgeOrCreate(const SMDS_MeshNode * node1,
SMDS_MeshEdge * toReturn=NULL;
toReturn=const_cast<SMDS_MeshEdge*>(FindEdge(node1,node2));
if(toReturn==NULL) {
//if ( myEdges.Extent() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
if ( NbEdges() % CHECKMEMORY_INTERVAL == 0 ) CheckMemory();
int ID = myElementIDFactory->GetFreeID(); // -PR- voir si on range cet element
adjustmyCellsCapacity(ID);
vector<vtkIdType> nodeIds;