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0031467: Foundation Classes, OSD_MemInfo - disable reading /proc/%d/status with Emscripten

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OSD_MemInfo::Update() no more uses procfs with Emscripten.
OSD_MemInfo::MemVirtual counter is now set to WebAssembly module heap length.
This commit is contained in:
kgv 2020-03-26 23:59:02 +03:00 committed by bugmaster
parent 85b147584e
commit 420f5c8682
1 changed files with 41 additions and 11 deletions
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52
src/OSD/OSD_MemInfo.cxx
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@ -37,6 +37,15 @@
#include <OSD_MemInfo.hxx>
#if defined(__EMSCRIPTEN__)
#include <emscripten.h>
//! Return WebAssembly heap size in bytes.
EM_JS(size_t, OSD_MemInfo_getModuleHeapLength, (), {
return Module.HEAP8.length;
});
#endif
// =======================================================================
// function : OSD_MemInfo
// purpose :
@ -146,23 +155,44 @@ void OSD_MemInfo::Update()
}
}
#elif (defined(__linux__) || defined(__linux) || defined(__EMSCRIPTEN__))
const struct mallinfo aMI = mallinfo();
#elif defined(__EMSCRIPTEN__)
if (IsActive (MemHeapUsage)
|| IsActive (MemWorkingSet)
|| IsActive (MemWorkingSetPeak))
{
// /proc/%d/status is not emulated - get more info from mallinfo()
const struct mallinfo aMI = mallinfo();
if (IsActive (MemHeapUsage))
{
myCounters[MemHeapUsage] = aMI.uordblks;
}
if (IsActive (MemWorkingSet))
{
myCounters[MemWorkingSet] = aMI.uordblks;
}
if (IsActive (MemWorkingSetPeak))
{
myCounters[MemWorkingSetPeak] = aMI.usmblks;
}
}
if (IsActive (MemVirtual))
{
myCounters[MemVirtual] = OSD_MemInfo_getModuleHeapLength();
}
#elif (defined(__linux__) || defined(__linux))
if (IsActive (MemHeapUsage))
{
const struct mallinfo aMI = mallinfo();
myCounters[MemHeapUsage] = aMI.uordblks;
}
#if defined(__EMSCRIPTEN__)
// /proc/%d/status is not emulated - get more info from mallinfo()
if (IsActive (MemWorkingSet))
if (!IsActive (MemVirtual)
&& !IsActive (MemWorkingSet)
&& !IsActive (MemWorkingSetPeak)
&& !IsActive (MemPrivate))
{
myCounters[MemWorkingSet] = aMI.uordblks;
return;
}
if (IsActive (MemWorkingSetPeak))
{
myCounters[MemWorkingSetPeak] = aMI.usmblks;
}
#endif
// use procfs on Linux
char aBuff[4096];