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Compress cgroup names based on some heuristics

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This commit is contained in:
Benny Baumann
2021-10-19 23:36:31 +02:00
committed by BenBE
parent ea4282784d
commit 9dc964bb42
7 changed files with 331 additions and 1 deletions
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20
linux/LinuxProcessList.c
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@ -45,6 +45,7 @@ in the source distribution for its full text.
#include "Process.h"
#include "Settings.h"
#include "XUtils.h"
#include "linux/CGroupUtils.h"
#include "linux/LinuxProcess.h"
#include "linux/Platform.h" // needed for GNU/hurd to get PATH_MAX // IWYU pragma: keep
@ -860,6 +861,10 @@ static void LinuxProcessList_readCGroupFile(LinuxProcess* process, openat_arg_t
free(process->cgroup);
process->cgroup = NULL;
}
if (process->cgroup_short) {
free(process->cgroup_short);
process->cgroup_short = NULL;
}
return;
}
char output[PROC_LINE_LENGTH + 1];
@ -892,7 +897,22 @@ static void LinuxProcessList_readCGroupFile(LinuxProcess* process, openat_arg_t
left -= wrote;
}
fclose(file);
bool changed = !process->cgroup || !String_eq(process->cgroup, output);
free_and_xStrdup(&process->cgroup, output);
if (!changed)
return;
char* cgroup_short = xCalloc(strlen(process->cgroup) + 1, 1);
if (CGroup_filterName(process->cgroup, cgroup_short, strlen(process->cgroup) + 1)) {
free_and_xStrdup(&process->cgroup_short, cgroup_short);
} else {
free(process->cgroup_short);
process->cgroup_short = NULL;
}
free(cgroup_short);
}
#ifdef HAVE_VSERVER