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gio: add fallback implementation of g_memory_monitor_base_query_mem_ratio

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Fallback for non-Linux systems that support the _SC_PHYS_PAGES and
_SC_AVPHYS_PAGES sysconf selectors, such as Solaris & OpenBSD.

Signed-off-by: Alan Coopersmith <alan.coopersmith@oracle.com>
This commit is contained in:
Alan Coopersmith
2025-10-14 17:32:11 -07:00
committed by Philip Withnall
parent 80b1e3843f
commit db165063f0
1 changed files with 11 additions and 0 deletions
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11
gio/gmemorymonitorbase.c
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@@ -31,6 +31,8 @@
#ifdef HAVE_SYSINFO
#include <sys/sysinfo.h>
#elif defined(HAVE_UNISTD_H)
#include <unistd.h>
#endif
/**
@@ -79,6 +81,15 @@ g_memory_monitor_base_query_mem_ratio (void)
return -1.0;
return (gdouble) ((gdouble) info.freeram / (gdouble) info.totalram);
#elif defined(_SC_PHYS_PAGES) && defined(_SC_AVPHYS_PAGES)
/* Implementation for Solaris, where sysinfo() does not return RAM usage information */
long totalram = sysconf (_SC_PHYS_PAGES);
long freeram = sysconf (_SC_AVPHYS_PAGES);
if (totalram <= 0 || freeram < 0)
return -1.0;
return (gdouble) ((gdouble) freeram / (gdouble) totalram);
#else
return -1.0;
#endif