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Added preliminary attempt at jails support on FreeBSD - JID and JAIL (name) columns, somewhat more correct kernel "thread" detection.

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Seems FreeBSD kernel can spawn both kernel processes (what is what htop currently sees) and kernel threads.
For now let's consider kernel processes kernel "threads".
This commit is contained in:
Martin "eto" Misuth
2015-09-30 22:04:26 +02:00
parent 2d1507ad5a
commit 8c00fa4582
2 changed files with 111 additions and 21 deletions
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40
freebsd/FreeBSDProcess.c
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@ -12,6 +12,7 @@ in the source distribution for its full text.
#include "CRT.h"
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/syscall.h>
@ -19,15 +20,22 @@ in the source distribution for its full text.
typedef enum FreeBSDProcessFields {
// Add platform-specific fields here, with ids >= 100
LAST_PROCESSFIELD = 100,
JID = 100,
JAIL = 101,
LAST_PROCESSFIELD = 102,
} FreeBSDProcessField;
typedef struct FreeBSDProcess_ {
Process super;
int kernel;
int jid;
char* jname;
} FreeBSDProcess;
#ifndef Process_isKernelThread
#define Process_isKernelThread(_process) (_process->pgrp == 0)
#define Process_isKernelThread(_process) (_process->kernel == 1)
#endif
#ifndef Process_isUserlandThread
@ -72,10 +80,13 @@ ProcessFieldData Process_fields[] = {
[TIME] = { .name = "TIME", .title = " TIME+ ", .description = "Total time the process has spent in user and system time", .flags = 0, },
[NLWP] = { .name = "NLWP", .title = "NLWP ", .description = "Number of threads in the process", .flags = 0, },
[TGID] = { .name = "TGID", .title = " TGID ", .description = "Thread group ID (i.e. process ID)", .flags = 0, },
[JID] = { .name = "JID", .title = " JID ", .description = "Jail prison ID", .flags = 0, },
[JAIL] = { .name = "JAIL", .title = "JAIL ", .description = "Jail prison name", .flags = 0, },
[LAST_PROCESSFIELD] = { .name = "*** report bug! ***", .title = NULL, .description = NULL, .flags = 0, },
};
ProcessPidColumn Process_pidColumns[] = {
{ .id = JID, .label = "JID" },
{ .id = PID, .label = "PID" },
{ .id = PPID, .label = "PPID" },
{ .id = TPGID, .label = "TPGID" },
@ -95,16 +106,26 @@ FreeBSDProcess* FreeBSDProcess_new(Settings* settings) {
void Process_delete(Object* cast) {
FreeBSDProcess* this = (FreeBSDProcess*) cast;
Process_done((Process*)cast);
free(this->jname);
free(this);
}
void FreeBSDProcess_writeField(Process* this, RichString* str, ProcessField field) {
//FreeBSDProcess* fp = (FreeBSDProcess*) this;
FreeBSDProcess* fp = (FreeBSDProcess*) this;
char buffer[256]; buffer[255] = '\0';
int attr = CRT_colors[DEFAULT_COLOR];
//int n = sizeof(buffer) - 1;
int n = sizeof(buffer) - 1;
switch (field) {
// add FreeBSD-specific fields here
case JID: snprintf(buffer, n, Process_pidFormat, fp->jid); break;
case JAIL:{
snprintf(buffer, n, "%-11s ", fp->jname); break;
if (buffer[11] != '\0') {
buffer[11] = ' ';
buffer[12] = '\0';
}
break;
}
default:
Process_writeField(this, str, field);
return;
@ -124,11 +145,20 @@ long FreeBSDProcess_compare(const void* v1, const void* v2) {
}
switch (settings->sortKey) {
// add FreeBSD-specific fields here
case JID:
return (p1->jid - p2->jid);
case JAIL:
return strcmp(p1->jname ? p1->jname : "", p2->jname ? p2->jname : "");
default:
return Process_compare(v1, v2);
}
}
bool Process_isThread(Process* this) {
return (Process_isKernelThread(this));
FreeBSDProcess* fp = (FreeBSDProcess*) this;
if (fp->kernel == 1 )
return 1;
else
return (Process_isUserlandThread(this));
}