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[OS] Implement and expose to scripting APIs get_memory_info method instead of old get_free_static_memory.
This commit is contained in:
bruvzg
parent
f178cad04a
commit
628f3b2f79
10 changed files with 275 additions and 4 deletions
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@ -41,9 +41,12 @@
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#include "drivers/unix/thread_posix.h"
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#include "servers/rendering_server.h"
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#ifdef __APPLE__
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#if defined(__APPLE__)
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#include <mach-o/dyld.h>
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#include <mach/host_info.h>
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#include <mach/mach_host.h>
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#include <mach/mach_time.h>
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#include <sys/sysctl.h>
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#endif
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#if defined(__FreeBSD__) || defined(__OpenBSD__) || defined(__NetBSD__)
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@ -51,6 +54,19 @@
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#include <sys/sysctl.h>
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#endif
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#if defined(__FreeBSD__)
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#include <kvm.h>
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#endif
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#if defined(__OpenBSD__)
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#include <sys/swap.h>
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#include <uvm/uvmexp.h>
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#endif
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#if defined(__NetBSD__)
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#include <uvm/uvm_extern.h>
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#endif
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#include <dlfcn.h>
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#include <errno.h>
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#include <poll.h>
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@ -59,6 +75,7 @@
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/resource.h>
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#include <sys/time.h>
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#include <sys/wait.h>
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#include <time.h>
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@ -274,6 +291,192 @@ uint64_t OS_Unix::get_ticks_usec() const {
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return longtime;
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}
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Dictionary OS_Unix::get_memory_info() const {
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Dictionary meminfo;
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meminfo["physical"] = -1;
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meminfo["free"] = -1;
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meminfo["available"] = -1;
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meminfo["stack"] = -1;
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#if defined(__APPLE__)
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int pagesize = 0;
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size_t len = sizeof(pagesize);
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if (sysctlbyname("vm.pagesize", &pagesize, &len, nullptr, 0) < 0) {
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ERR_PRINT(vformat("Could not get vm.pagesize, error code: %d - %s", errno, strerror(errno)));
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}
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int64_t phy_mem = 0;
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len = sizeof(phy_mem);
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if (sysctlbyname("hw.memsize", &phy_mem, &len, nullptr, 0) < 0) {
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ERR_PRINT(vformat("Could not get hw.memsize, error code: %d - %s", errno, strerror(errno)));
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}
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mach_msg_type_number_t count = HOST_VM_INFO64_COUNT;
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vm_statistics64_data_t vmstat;
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if (host_statistics64(mach_host_self(), HOST_VM_INFO64, (host_info64_t)&vmstat, &count) != KERN_SUCCESS) {
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ERR_PRINT(vformat("Could not get host vm statistics."));
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}
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struct xsw_usage swap_used;
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len = sizeof(swap_used);
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if (sysctlbyname("vm.swapusage", &swap_used, &len, nullptr, 0) < 0) {
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ERR_PRINT(vformat("Could not get vm.swapusage, error code: %d - %s", errno, strerror(errno)));
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}
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if (phy_mem != 0) {
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meminfo["physical"] = phy_mem;
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}
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if (vmstat.free_count * (int64_t)pagesize != 0) {
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meminfo["free"] = vmstat.free_count * (int64_t)pagesize;
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}
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if (swap_used.xsu_avail + vmstat.free_count * (int64_t)pagesize != 0) {
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meminfo["available"] = swap_used.xsu_avail + vmstat.free_count * (int64_t)pagesize;
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}
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#elif defined(__FreeBSD__)
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int pagesize = 0;
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size_t len = sizeof(pagesize);
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if (sysctlbyname("vm.stats.vm.v_page_size", &pagesize, &len, nullptr, 0) < 0) {
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ERR_PRINT(vformat("Could not get vm.stats.vm.v_page_size, error code: %d - %s", errno, strerror(errno)));
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}
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uint64_t mtotal = 0;
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len = sizeof(mtotal);
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if (sysctlbyname("vm.stats.vm.v_page_count", &mtotal, &len, nullptr, 0) < 0) {
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ERR_PRINT(vformat("Could not get vm.stats.vm.v_page_count, error code: %d - %s", errno, strerror(errno)));
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}
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uint64_t mfree = 0;
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len = sizeof(mfree);
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if (sysctlbyname("vm.stats.vm.v_free_count", &mfree, &len, nullptr, 0) < 0) {
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ERR_PRINT(vformat("Could not get vm.stats.vm.v_free_count, error code: %d - %s", errno, strerror(errno)));
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}
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uint64_t stotal = 0;
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uint64_t sused = 0;
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char errmsg[_POSIX2_LINE_MAX] = {};
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kvm_t *kd = kvm_openfiles(nullptr, "/dev/null", nullptr, 0, errmsg);
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if (kd == nullptr) {
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ERR_PRINT(vformat("kvm_openfiles failed, error: %s", errmsg));
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} else {
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struct kvm_swap swap_info[32];
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int count = kvm_getswapinfo(kd, swap_info, 32, 0);
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for (int i = 0; i < count; i++) {
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stotal += swap_info[i].ksw_total;
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sused += swap_info[i].ksw_used;
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}
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kvm_close(kd);
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}
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if (mtotal * pagesize != 0) {
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meminfo["physical"] = mtotal * pagesize;
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}
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if (mfree * pagesize != 0) {
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meminfo["free"] = mfree * pagesize;
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}
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if ((mfree + stotal - sused) * pagesize != 0) {
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meminfo["available"] = (mfree + stotal - sused) * pagesize;
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}
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#elif defined(__OpenBSD__)
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int pagesize = sysconf(_SC_PAGESIZE);
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const int mib[] = { CTL_VM, VM_UVMEXP };
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uvmexp uvmexp_info;
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size_t len = sizeof(uvmexp_info);
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if (sysctl(mib, 2, &uvmexp_info, &len, nullptr, 0) < 0) {
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ERR_PRINT(vformat("Could not get CTL_VM, VM_UVMEXP, error code: %d - %s", errno, strerror(errno)));
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}
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uint64_t stotal = 0;
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uint64_t sused = 0;
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int count = swapctl(SWAP_NSWAP, 0, 0);
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if (count > 0) {
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swapent swap_info[count];
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count = swapctl(SWAP_STATS, swap_info, count);
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for (int i = 0; i < count; i++) {
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if (swap_info[i].se_flags & SWF_ENABLE) {
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sused += swap_info[i].se_inuse;
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stotal += swap_info[i].se_nblks;
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}
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}
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}
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if (uvmexp_info.npages * pagesize != 0) {
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meminfo["physical"] = uvmexp_info.npages * pagesize;
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}
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if (uvmexp_info.free * pagesize != 0) {
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meminfo["free"] = uvmexp_info.free * pagesize;
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}
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if ((uvmexp_info.free * pagesize) + (stotal - sused) * DEV_BSIZE != 0) {
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meminfo["available"] = (uvmexp_info.free * pagesize) + (stotal - sused) * DEV_BSIZE;
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}
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#elif defined(__NetBSD__)
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int pagesize = sysconf(_SC_PAGESIZE);
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const int mib[] = { CTL_VM, VM_UVMEXP2 };
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uvmexp_sysctl uvmexp_info;
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size_t len = sizeof(uvmexp_info);
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if (sysctl(mib, 2, &uvmexp_info, &len, nullptr, 0) < 0) {
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ERR_PRINT(vformat("Could not get CTL_VM, VM_UVMEXP2, error code: %d - %s", errno, strerror(errno)));
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}
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if (uvmexp_info.npages * pagesize != 0) {
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meminfo["physical"] = uvmexp_info.npages * pagesize;
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}
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if (uvmexp_info.free * pagesize != 0) {
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meminfo["free"] = uvmexp_info.free * pagesize;
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}
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if ((uvmexp_info.free + uvmexp_info.swpages - uvmexp_info.swpginuse) * pagesize != 0) {
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meminfo["available"] = (uvmexp_info.free + uvmexp_info.swpages - uvmexp_info.swpginuse) * pagesize;
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}
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#else
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Error err;
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Ref<FileAccess> f = FileAccess::open("/proc/meminfo", FileAccess::READ, &err);
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uint64_t mtotal = 0;
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uint64_t mfree = 0;
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uint64_t sfree = 0;
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while (f.is_valid() && !f->eof_reached()) {
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String s = f->get_line().strip_edges();
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if (s.begins_with("MemTotal:")) {
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Vector<String> stok = s.replace("MemTotal:", "").strip_edges().split(" ");
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if (stok.size() == 2) {
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mtotal = stok[0].to_int() * 1024;
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}
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}
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if (s.begins_with("MemFree:")) {
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Vector<String> stok = s.replace("MemFree:", "").strip_edges().split(" ");
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if (stok.size() == 2) {
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mfree = stok[0].to_int() * 1024;
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}
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}
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if (s.begins_with("SwapFree:")) {
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Vector<String> stok = s.replace("SwapFree:", "").strip_edges().split(" ");
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if (stok.size() == 2) {
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sfree = stok[0].to_int() * 1024;
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}
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}
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}
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if (mtotal != 0) {
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meminfo["physical"] = mtotal;
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}
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if (mfree != 0) {
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meminfo["free"] = mfree;
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}
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if (mfree + sfree != 0) {
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meminfo["available"] = mfree + sfree;
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}
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#endif
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rlimit stackinfo = {};
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getrlimit(RLIMIT_STACK, &stackinfo);
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if (stackinfo.rlim_cur != 0) {
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meminfo["stack"] = (int64_t)stackinfo.rlim_cur;
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}
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return meminfo;
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}
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Error OS_Unix::execute(const String &p_path, const List<String> &p_arguments, String *r_pipe, int *r_exitcode, bool read_stderr, Mutex *p_pipe_mutex, bool p_open_console) {
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#ifdef __EMSCRIPTEN__
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// Don't compile this code at all to avoid undefined references.
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