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This commit is contained in:
Igor Pavlov
2023-12-22 17:17:05 +00:00
committed by Kornel
parent ec44a8a070
commit a36c48cece
954 changed files with 42199 additions and 25482 deletions
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58
CPP/Windows/System.cpp
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@@ -4,6 +4,7 @@
#ifndef _WIN32
#include <unistd.h>
#include <limits.h>
#ifdef __APPLE__
#include <sys/sysctl.h>
#else
@@ -74,7 +75,7 @@ BOOL CProcessAffinity::Get()
return TRUE;
*/
#ifdef _7ZIP_AFFINITY_SUPPORTED
#ifdef Z7_AFFINITY_SUPPORTED
// numSysThreads = sysconf(_SC_NPROCESSORS_ONLN); // The number of processors currently online
if (sched_getaffinity(0, sizeof(cpu_set), &cpu_set) != 0)
@@ -93,7 +94,7 @@ BOOL CProcessAffinity::Get()
UInt32 GetNumberOfProcessors()
{
#ifndef _7ZIP_ST
#ifndef Z7_ST
long n = sysconf(_SC_NPROCESSORS_CONF); // The number of processors configured
if (n < 1)
n = 1;
@@ -110,7 +111,8 @@ UInt32 GetNumberOfProcessors()
#ifndef UNDER_CE
#if !defined(_WIN64) && defined(__GNUC__)
#if !defined(_WIN64) && \
(defined(__MINGW32_VERSION) || defined(Z7_OLD_WIN_SDK))
typedef struct _MY_MEMORYSTATUSEX {
DWORD dwLength;
@@ -131,7 +133,7 @@ typedef struct _MY_MEMORYSTATUSEX {
#endif
typedef BOOL (WINAPI *GlobalMemoryStatusExP)(MY_LPMEMORYSTATUSEX lpBuffer);
typedef BOOL (WINAPI *Func_GlobalMemoryStatusEx)(MY_LPMEMORYSTATUSEX lpBuffer);
#endif // !UNDER_CE
@@ -155,9 +157,11 @@ bool GetRamSize(UInt64 &size)
#else
#ifndef UNDER_CE
GlobalMemoryStatusExP globalMemoryStatusEx = (GlobalMemoryStatusExP)
(void *)::GetProcAddress(::GetModuleHandleA("kernel32.dll"), "GlobalMemoryStatusEx");
if (globalMemoryStatusEx && globalMemoryStatusEx(&stat))
const
Func_GlobalMemoryStatusEx fn = Z7_GET_PROC_ADDRESS(
Func_GlobalMemoryStatusEx, ::GetModuleHandleA("kernel32.dll"),
"GlobalMemoryStatusEx");
if (fn && fn(&stat))
{
size = MyMin(stat.ullTotalVirtual, stat.ullTotalPhys);
return true;
@@ -231,4 +235,44 @@ bool GetRamSize(UInt64 &size)
#endif
unsigned long Get_File_OPEN_MAX()
{
#ifdef _WIN32
return (1 << 24) - (1 << 16); // ~16M handles
#else
// some linux versions have default open file limit for user process of 1024 files.
long n = sysconf(_SC_OPEN_MAX);
// n = -1; // for debug
// n = 9; // for debug
if (n < 1)
{
// n = OPEN_MAX; // ???
// n = FOPEN_MAX; // = 16 : <stdio.h>
#ifdef _POSIX_OPEN_MAX
n = _POSIX_OPEN_MAX; // = 20 : <limits.h>
#else
n = 30; // our limit
#endif
}
return (unsigned long)n;
#endif
}
unsigned Get_File_OPEN_MAX_Reduced_for_3_tasks()
{
unsigned long numFiles_OPEN_MAX = NSystem::Get_File_OPEN_MAX();
const unsigned delta = 10; // the reserve for another internal needs of process
if (numFiles_OPEN_MAX > delta)
numFiles_OPEN_MAX -= delta;
else
numFiles_OPEN_MAX = 1;
numFiles_OPEN_MAX /= 3; // we suppose that we have up to 3 tasks in total for multiple file processing
numFiles_OPEN_MAX = MyMax(numFiles_OPEN_MAX, (unsigned long)3);
unsigned n = (UInt32)(UInt32)-1;
if (n > numFiles_OPEN_MAX)
n = (unsigned)numFiles_OPEN_MAX;
return n;
}
}}