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Updating the 'available memory' measurement for Apple ARM 64 bit

This commit is contained in:
Holger Vogt 2026-04-17 17:10:31 +02:00
parent 1a621eb08e
commit 7859aa0db9
1 changed files with 17 additions and 16 deletions
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33
src/frontend/get_avail_mem_size.c
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@ -65,26 +65,27 @@ unsigned long long getAvailableMemorySize(void)
#elif defined(__APPLE__) && defined(__MACH__)
mach_port_t host_port;
mach_msg_type_number_t host_size;
vm_size_t pagesize;
#include <stdio.h>
#include <stdlib.h>
#include <sys/sysctl.h>
#include <mach/mach.h>
host_port = mach_host_self();
host_size = sizeof(vm_statistics_data_t) / sizeof(integer_t);
host_page_size(host_port, &pagesize);
mach_msg_type_number_t count = HOST_VM_INFO64_COUNT;
vm_statistics_data_t vm_stat;
vm_statistics64_data_t vmstats;
if (host_statistics(host_port, HOST_VM_INFO, (host_info_t) &vm_stat,
&host_size) != KERN_SUCCESS) {
fprintf(stderr, "Failed to fetch vm statistics");
if (host_statistics64(mach_host_self(), HOST_VM_INFO64,
(host_info64_t)&vmstats, &count) == KERN_SUCCESS) {
// Calculate available memory (free + inactive)
const int page_size = PAGE_SIZE;
uint64_t free_memory = (uint64_t)vmstats.free_count * page_size;
uint64_t inactive_memory = (uint64_t)vmstats.inactive_count * page_size;
uint64_t available_memory = free_memory + inactive_memory;
return available_memory;
}
/* Stats in bytes */
/* natural_t mem_used = (vm_stat.active_count + vm_stat.inactive_count +
vm_stat.wire_count) * pagesize; */
return (unsigned long long)(vm_stat.free_count * pagesize);
// natural_t mem_total = mem_used + mem_free;
else
return 0;
#elif defined(__unix__) || defined(__unix) || defined(unix)
/* Linux/UNIX variants. ------------------------------------------- */