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ntdll: Added numa nodes information to SystemLogicalProcessorInformation (linux).

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This commit is contained in:
Piotr Caban 2012-09-04 13:38:36 +02:00 committed by Alexandre Julliard
parent a3d0a19624
commit 59a54b0f8a
1 changed files with 81 additions and 1 deletions
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82
dlls/ntdll/nt.c
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@ -1369,12 +1369,26 @@ static inline BOOL logical_proc_info_add_cache(SYSTEM_LOGICAL_PROCESSOR_INFORMAT
return TRUE;
}
static inline BOOL logical_proc_info_add_numa_node(SYSTEM_LOGICAL_PROCESSOR_INFORMATION *data,
DWORD *len, DWORD max_len, ULONG_PTR mask, DWORD node_id)
{
if(*len == max_len)
return FALSE;
data[*len].Relationship = RelationNumaNode;
data[*len].ProcessorMask = mask;
data[*len].u.NumaNode.NodeNumber = node_id;
(*len)++;
return TRUE;
}
static NTSTATUS create_logical_proc_info(SYSTEM_LOGICAL_PROCESSOR_INFORMATION **data, DWORD *max_len)
{
static const char core_info[] = "/sys/devices/system/cpu/cpu%d/%s";
static const char cache_info[] = "/sys/devices/system/cpu/cpu%d/cache/index%d/%s";
static const char numa_info[] = "/sys/devices/system/node/node%d/cpumap";
FILE *fcpu_list, *f;
FILE *fcpu_list, *fnuma_list, *f;
DWORD len = 0, beg, end, i, j, r;
char op, name[MAX_PATH];
@ -1523,6 +1537,72 @@ static NTSTATUS create_logical_proc_info(SYSTEM_LOGICAL_PROCESSOR_INFORMATION **
}
fclose(fcpu_list);
fnuma_list = fopen("/sys/devices/system/node/online", "r");
if(!fnuma_list)
{
ULONG_PTR mask = 0;
for(i=0; i<len; i++)
if((*data)[i].Relationship == RelationProcessorCore)
mask |= (*data)[i].ProcessorMask;
if(len == *max_len)
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION *new_data;
*max_len *= 2;
new_data = RtlReAllocateHeap(GetProcessHeap(), 0, *data, *max_len*sizeof(*new_data));
if(!new_data)
return STATUS_NO_MEMORY;
*data = new_data;
}
logical_proc_info_add_numa_node(*data, &len, *max_len, mask, 0);
}
else
{
while(!feof(fnuma_list))
{
if(!fscanf(fnuma_list, "%u%c ", &beg, &op))
break;
if(op == '-') fscanf(fnuma_list, "%u%c ", &end, &op);
else end = beg;
for(i=beg; i<=end; i++)
{
ULONG_PTR mask = 0;
sprintf(name, numa_info, i);
f = fopen(name, "r");
if(!f) continue;
while(!feof(f))
{
if(!fscanf(f, "%x%c ", &r, &op))
break;
mask = (sizeof(ULONG_PTR)>sizeof(int) ? mask<<(8*sizeof(DWORD)) : 0) + r;
}
fclose(f);
if(len == *max_len)
{
SYSTEM_LOGICAL_PROCESSOR_INFORMATION *new_data;
*max_len *= 2;
new_data = RtlReAllocateHeap(GetProcessHeap(), 0, *data, *max_len*sizeof(*new_data));
if(!new_data)
{
fclose(fnuma_list);
return STATUS_NO_MEMORY;
}
*data = new_data;
}
logical_proc_info_add_numa_node(*data, &len, *max_len, mask, i);
}
}
fclose(fnuma_list);
}
*max_len = len * sizeof(**data);
return STATUS_SUCCESS;
}