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Process: make some assumptions about I/O explicit for type safety

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This commit is contained in:
Dylan K. Taylor 2020-04-15 12:05:13 +01:00
parent 0c9d16f1ef
commit 24d64eedab
1 changed files with 7 additions and 3 deletions
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10
src/pocketmine/utils/Process.php
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@ -55,7 +55,8 @@ final class Process{
$VmSize = null; $VmSize = null;
$VmRSS = null; $VmRSS = null;
if(Utils::getOS() === "linux" or Utils::getOS() === "android"){ if(Utils::getOS() === "linux" or Utils::getOS() === "android"){
$status = file_get_contents("/proc/self/status"); $status = @file_get_contents("/proc/self/status");
if($status === false) throw new AssumptionFailedError("/proc/self/status should always be accessible");
if(preg_match("/VmRSS:[ \t]+([0-9]+) kB/", $status, $matches) > 0){ if(preg_match("/VmRSS:[ \t]+([0-9]+) kB/", $status, $matches) > 0){
$VmRSS = $matches[1] * 1024; $VmRSS = $matches[1] * 1024;
} }
@ -90,7 +91,8 @@ final class Process{
$heap = 0; $heap = 0;
if(Utils::getOS() === "linux" or Utils::getOS() === "android"){ if(Utils::getOS() === "linux" or Utils::getOS() === "android"){
$mappings = file("/proc/self/maps"); $mappings = @file("/proc/self/maps");
if($mappings === false) throw new AssumptionFailedError("/proc/self/maps should always be accessible");
foreach($mappings as $line){ foreach($mappings as $line){
if(preg_match("#([a-z0-9]+)\\-([a-z0-9]+) [rwxp\\-]{4} [a-z0-9]+ [^\\[]*\\[([a-zA-z0-9]+)\\]#", trim($line), $matches) > 0){ if(preg_match("#([a-z0-9]+)\\-([a-z0-9]+) [rwxp\\-]{4} [a-z0-9]+ [^\\[]*\\[([a-zA-z0-9]+)\\]#", trim($line), $matches) > 0){
if(strpos($matches[3], "heap") === 0){ if(strpos($matches[3], "heap") === 0){
@ -107,7 +109,9 @@ final class Process{
public static function getThreadCount() : int{ public static function getThreadCount() : int{
if(Utils::getOS() === "linux" or Utils::getOS() === "android"){ if(Utils::getOS() === "linux" or Utils::getOS() === "android"){
if(preg_match("/Threads:[ \t]+([0-9]+)/", file_get_contents("/proc/self/status"), $matches) > 0){ $status = @file_get_contents("/proc/self/status");
if($status === false) throw new AssumptionFailedError("/proc/self/status should always be accessible");
if(preg_match("/Threads:[ \t]+([0-9]+)/", $status, $matches) > 0){
return (int) $matches[1]; return (int) $matches[1];
} }
} }