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Merge pull request #633 from crestfallnatwork/main

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[fix] Made disks statvfs logic asynchronous.
This commit is contained in:
Jakob P. Liljenberg 2023-09-29 10:43:21 +02:00 committed by GitHub
commit 1f72e56c7d
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1 changed files with 44 additions and 21 deletions
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59
src/linux/btop_collect.cpp
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@ -29,6 +29,7 @@ tab-size = 4
#include <net/if.h>
#include <arpa/inet.h> // for inet_ntop()
#include <filesystem>
#include <future>
#if !(defined(STATIC_BUILD) && defined(__GLIBC__))
#include <pwd.h>
@ -48,12 +49,17 @@ using std::numeric_limits;
using std::round;
using std::streamsize;
using std::vector;
using std::future;
using std::async;
using std::pair;
namespace fs = std::filesystem;
namespace rng = std::ranges;
using namespace Tools;
using namespace std::literals; // for operator""s
using namespace std::chrono_literals;
//? --------------------------------------------------- FUNCTIONS -----------------------------------------------------
namespace Cpu {
@ -939,6 +945,7 @@ namespace Mem {
auto only_physical = Config::getB("only_physical");
auto zfs_hide_datasets = Config::getB("zfs_hide_datasets");
auto& disks = mem.disks;
static unordered_flat_map<string, future<pair<disk_info, int>>> disks_stats_promises;
ifstream diskread;
vector<string> filter;
@ -1078,31 +1085,47 @@ namespace Mem {
diskread.close();
//? Get disk/partition stats
bool new_ignored = false;
for (auto& [mountpoint, disk] : disks) {
if (std::error_code ec; not fs::exists(mountpoint, ec) or v_contains(ignore_list, mountpoint)) continue;
struct statvfs vfs;
if (statvfs(mountpoint.c_str(), &vfs) < 0) {
Logger::warning("Failed to get disk/partition stats for mount \""+ mountpoint + "\" with statvfs error code: " + to_string(errno) + ". Ignoring...");
ignore_list.push_back(mountpoint);
new_ignored = true;
for (auto it = disks.begin(); it != disks.end(); ) {
auto &[mountpoint, disk] = *it;
if (v_contains(ignore_list, mountpoint)) {
it = disks.erase(it);
continue;
}
if(auto promises_it = disks_stats_promises.find(mountpoint); promises_it != disks_stats_promises.end()){
auto& promise = promises_it->second;
if(promise.valid() &&
promise.wait_for(0s) == std::future_status::timeout) {
++it;
continue;
}
auto promise_res = promises_it->second.get();
if(promise_res.second != -1){
ignore_list.push_back(mountpoint);
Logger::warning("Failed to get disk/partition stats for mount \""+ mountpoint + "\" with statvfs error code: " + to_string(promise_res.second) + ". Ignoring...");
it = disks.erase(it);
continue;
}
auto &updated_stats = promise_res.first;
disk.total = updated_stats.total;
disk.free = updated_stats.free;
disk.used = updated_stats.used;
disk.used_percent = updated_stats.used_percent;
disk.free_percent = updated_stats.free_percent;
}
disks_stats_promises[mountpoint] = async(std::launch::async, [mountpoint, &free_priv]() -> pair<disk_info, int> {
struct statvfs vfs;
disk_info disk;
if (statvfs(mountpoint.c_str(), &vfs) < 0) {
return pair{disk, errno};
}
disk.total = vfs.f_blocks * vfs.f_frsize;
disk.free = (free_priv ? vfs.f_bfree : vfs.f_bavail) * vfs.f_frsize;
disk.used = disk.total - disk.free;
disk.used_percent = round((double)disk.used * 100 / disk.total);
disk.free_percent = 100 - disk.used_percent;
}
//? Remove any problematic disks added to the ignore_list
if (new_ignored) {
for (auto it = disks.begin(); it != disks.end();) {
if (v_contains(ignore_list, it->first))
it = disks.erase(it);
else
it++;
}
return pair{disk, -1};
});
++it;
}
//? Setup disks order in UI and add swap if enabled