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[2.38] bmalloc: check WPE_RAM_SIZE #1421

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Merged
magomez merged 1 commit into from
Oct 22, 2024
Merged

[2.38] bmalloc: check WPE_RAM_SIZE #1421

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27 changes: 27 additions & 0 deletions Source/bmalloc/bmalloc/AvailableMemory.cpp
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Original file line number Diff line number Diff line change
Expand Up @@ -149,6 +149,29 @@ struct LinuxMemory {
};
#endif

static size_t customRAMSize()
{
// Syntax: Case insensitive, unit multipliers (M=Mb, K=Kb, <empty>=bytes).
// Example: WPE_RAM_SIZE='500M'

size_t customSize = 0;

const char *s = getenv("WPE_RAM_SIZE");
if (s) {
size_t len = strlen(s);
size_t val = atoi(s);
size_t units = 1;
if (s[len-1] == 'k' || s[len-1] == 'K')
units = 1024;
else if (s[len-1] == 'm' || s[len-1] == 'M')
units = 1024*1024;
return units * val;
}

return customSize;
}


static size_t computeAvailableMemory()
{
#if BOS(DARWIN)
Expand All @@ -162,6 +185,10 @@ static size_t computeAvailableMemory()
// (for example) and we have code that depends on those boundaries.
return ((sizeAccordingToKernel + multiple - 1) / multiple) * multiple;
#elif BOS(FREEBSD) || BOS(LINUX)
size_t customRamSize = customRAMSize();
if (customRamSize) {
return customRamSize;
}
struct sysinfo info;
if (!sysinfo(&info))
return info.totalram * info.mem_unit;
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