Commit Graph

432 Commits

Author SHA1 Message Date
Christian Göttsche
323d7e73aa Linux: update IO fields
- fix header width of IO_READ_RATE

- save data in bytes (not kilobytes) to better compute rate

- fix rate data: multiply with 1000 to compensate time difference in
  milliseconds

- rename unit less variable now into realtimeMs

- use Process_printBytes(..., data * pageSize, ...) instead of
  Process_printKBytes(..., data * pageSizeKB, ...) to avoid wrapper
2021-04-26 18:02:58 +02:00
Christian Göttsche
b41e4d9c54 Rework process field print functions
Make functions formatting data for a process field column less error
prone, unify interfaces and improve some internals.

* Process_printBytes
  - rename from Process_humanNumber
  - take number in bytes, not kilobytes
  - handle petabytes
  - increase buffer to avoid crashes when the passed value is
    ~ ULLONG_MAX

* Process_printKBytes
  - add wrapper for Process_printBytes taking kilobytes keeping -1 as
  special value

* Process_printCount
  - rename from Process_colorNumber

* Process_printTime
  - add coloring parameter as other print functions
  - improve coloring and formatting for larger times

* Process_printRate
  - rename from Process_outputRate
  - use local buffer instead of passed one; this function prints to the
    RichString after all
2021-04-26 18:02:58 +02:00
Christian Göttsche
6bbb454881 LinuxProcess: print default buffer in ascii
`RichString_appendWide()` is more expensive than
`RichString_appendAscii()` due to the calls to `mbstowcs(3)` and
`iswprint(3)`.

Use the latter to print the process field buffer by default.

For the following fields this theoretically can corrupt the output:
  - SECATTR
  - CGROUP
  - CTID
2021-04-26 17:51:45 +02:00
Christian Göttsche
436808ff99 Use RichString_appendnAscii where possible
`RichString_appendnAscii()` avoids a `strlen(3)` call over
` RichString_appendAscii()`.
Use the former where the length is available from a previous checked
`snprintf(3)` call.

Keep `RichString_appendAscii()` when passing a string literal and
rely on compilers to optimize the `strlen(3)` call away.
2021-04-26 17:51:45 +02:00
Christian Göttsche
2d7069feb4 Linux: handle Shmem being part of Cached
See https://lore.kernel.org/patchwork/patch/648763/

Do not show twice by subtracting from Cached.

Closes: #591
2021-04-22 10:48:15 +02:00
Christian Göttsche
a05e78f531 Linux: use more robust pid parsing
Also add comment to condition
2021-04-21 20:58:28 +02:00
Christian Göttsche
9a8221568a Rework TTY column
* Rename internal identifier from TTY_NR to just TTY
* Unify column header on platforms
* Use devname(3) on BSD derivate to show the actual terminal,
  simplifies current FreeBSD implementation.
* Use 'unsigned long int' as id type, to fit dev_t on Linux.

Only on Solaris the terminal path is not yet resolved.
2021-04-14 17:29:56 +02:00
Christian Göttsche
36880cd61c Add read-only option
Add command line option to disable all system and process changing
features.
2021-04-14 17:21:43 +02:00
Christian Göttsche
812cfcb94d Rename drop-capabilities options none to off
None might be ambiguous whether we are dropping none or whether we keep
none.

Rename to off to make more clear this option does not drop any.
2021-04-14 17:19:26 +02:00
Christian Göttsche
74d061700c LinuxProcessList_recurseProcTree(): drop non necessary parameter 2021-04-14 17:16:02 +02:00
Nathan Scott
356488aa53 Request the realtime and monotonic clock times once per sample
Refactor the sample time code to make one call to gettimeofday
(aka the realtime clock in clock_gettime, when available) and
one to the monotonic clock.  Stores each in more appropriately
named ProcessList fields for ready access when needed.  Every
platform gets the opportunity to provide their own clock code,
and the existing Mac OS X specific code is moved below darwin
instead of in Compat.

A couple of leftover time(2) calls are converted to use these
ProcessList fields as well, instead of yet again sampling the
system clock.

Related to https://github.com/htop-dev/htop/pull/574
2021-04-05 23:41:07 +02:00
Sohaib
421bdeec60 Merging all the points related to calculating time in one place
The end goal is to consolidate all the points in htop that can only work in
live-only mode today, so that will be able to inject PCP archive mode and have
a chance at it working.
The biggest problem we've got at this moment is all the places that are
independently asking the kernel to 'give me the time right now'.
Each of those needs to be audited and ultimately changed to allow platforms to
manage their own idea of time.
So, all the calls to gettimeofday(2) and time(2) are potential problems.
Ultimately I want to get these down to just one or two.

Related to https://github.com/htop-dev/htop/pull/574
2021-04-05 23:40:41 +02:00
Christian Göttsche
73f5ecf528 Linux: handle garbage in /proc/loadavg
When parsing the content of /proc/loadavg via fscanf(3), ensure client
passed parameters are set to sanitized values.

Related to: #581
2021-03-28 19:20:28 +02:00
Christian Göttsche
5ef3c26168 Drop always true condition
The variable 'dir' is checked in line 645:
    if (!dir)
        return AC_ERROR;
2021-03-24 19:36:34 +01:00
Christian Göttsche
a19b176099 Correct spelling in comment 2021-03-24 19:27:57 +01:00
Christian Göttsche
9c437ceb0c Drop unused attributes of actually used function parameters
These parameters were once unused, but not anymore.
2021-03-24 19:27:03 +01:00
Christian Göttsche
7b293dc3e2 Linux: fix --drop-capabilities
Do not return false (= argument not handled) when actually handled
2021-03-22 11:56:19 +01:00
Nathan Scott
253ff23f9e Use a platform-specific routine for long option usage
Related to https://github.com/htop-dev/htop/pull/564
2021-03-22 17:16:40 +11:00
Nathan Scott
0ada9f325f Move libcap use to (Linux) platform-specific code
The libcap code is Linux-specific so move it all below
the linux/ platform subdirectory.  As this feature has
custom command-line long options I provide a mechanism
whereby each platform can add custom long options that
augment the main htop options.  We'll make use this of
this with the pcp/ platform in due course to implement
the --host and --archive options there.

Related to https://github.com/htop-dev/htop/pull/536
2021-03-22 17:16:40 +11:00
Benny Baumann
57e0ce7b4f Use #if defined() syntax when #elif defined() is present
This prefers the `#if defined()` syntax over the `#ifdef` variant
whenever there's also a `#elif defined()` clause, thus making the
multiple branching structure more obvious and the overall use
more consistent.
2021-03-21 21:49:04 +01:00
Daniel Lange
1cb3aee07a Merge branch 'cputemp' of cgzones/htop 2021-03-21 18:09:14 +01:00
Christian Göttsche
a11d01568c Use unsigned types for CPU counts and associated variables 2021-03-19 23:30:54 +01:00
Christian Göttsche
f46fcf094e Linux: Rework libsensors parsing
Do not read driver depended labels, just count the number of
temperatures given:

  on #CPU:
    platform temp = max cpu temp
    CPU temps = first to last
  on #CPU + 1:
    platform temp = first temp
    CPU temps = second to last
  on #CPU / 2:
    platform temp = max cpu temp
    CPU temps = first to last concat first to last
      (with SMT core x + cpu count is the logical core of the physical
      core x)
  on #CPU / 2 + 1:
    platform temp = first temp
    CPU temps = second to last concat second to last
      (with SMT core x + cpu count is the logical core of the physical
      core x)

Closes: #529
Closes: #538
2021-03-19 22:11:22 +01:00
Daniel Lange
67b815a817 Merge branch 'shared_before_cached' of cgzones/htop 2021-03-19 09:49:36 +01:00
Christian Göttsche
e942736267 LinuxProcessList: drop unnecessary parenthesis 2021-03-17 17:53:00 +01:00
Christian Göttsche
9f41dc3332 MemoryMeter: show shared memory before cached
Shared memory is less free-able than cached memory.

Show it beforehand.
2021-03-17 16:32:16 +01:00
Christian Göttsche
d9f2eacbc5 Linux: individually show shared memory
Shmem: Total memory used by shared memory (shmem) and tmpfs

Source: https://www.kernel.org/doc/Documentation/filesystems/proc.txt

Closes: #556
2021-03-15 22:34:14 +01:00
Christian Göttsche
0cfc9b0980 LinuxProcessList: refactor /proc/stat parsing
Combine reading CPU count and CPU usage, only open the file once.
Do not separately initialize totalPeriod and totalTime, cause the value
0 is handled in Platform_setCPUValues().

Take the number of currently running process from the entry
procs_running in /proc/stat instead of counting all scanned process
with state 'R', to include hidden tasks, e.g. threads.
2021-03-12 17:31:45 +01:00
Nathan Scott
31e59cc60d Merge branch 'misc' of https://github.com/cgzones/htop into cgzones-misc 2021-03-05 13:38:19 +11:00
Christian Göttsche
2d1042adb3 Save text buffer in Meter 2021-03-04 23:57:45 +01:00
Nathan Scott
adaf748ab6 Fix include file ordering of generic headers 2021-03-04 13:44:40 +11:00
Nathan Scott
61ef1134d9 Move generic (shared) code into its own sub-directory
Code that is shared across some (but not all) platforms
is moved into a 'generic' home. Makefile.am cleanups to
match plus some minor alphabetic reordering/formatting.

As discussed in https://github.com/htop-dev/htop/pull/553
2021-03-04 13:40:59 +11:00
Nathan Scott
5b50ae3aa3 Separate display from sampling in SysArch and Hostname Meters
Several of our newer meters have merged coding concerns in terms
of extracting values and displaying those values.  This commit
rectifies that for the SysArch and Hostname meters, allowing use
of this code with alternative front/back ends.  The SysArch code
is also refined to detect whether the platform has an os-release
file at all and/or the sys/utsname.h header via configure.ac.
2021-03-04 13:40:11 +11:00
Christian Göttsche
ff4ee2eafc LinuxProcess: Drop dead assignment
Modern compilers are very good at finding uninitialized paths, lets rely
on them.
2021-03-02 22:37:47 +01:00
Christian Göttsche
13b28fa9ed Enclose macro argument in parentheses 2021-03-02 22:03:20 +01:00
Nathan Scott
29570c0133
Merge pull request #550 from natoscott/diskio-types
Fix integer sizing issues in the DiskIO Meter
2021-03-02 13:34:52 +11:00
Nathan Scott
00339087b0 Fix integer sizing issues in the DiskIO Meter
On Linux kernels the size of the values exported for block
device bytes has used a 64 bit integer for quite some time
(2.6+ IIRC).  Make the procfs value extraction use correct
types and change internal types used to rate convert these
counters (within the DiskIO Meter) 64 bit integers, where
appropriate.
2021-03-01 12:10:18 +11:00
Nathan Scott
2d1839289e Fix integer sizing issues in the NetworkIO Meter
On Linux kernels the size of the values exported for network
device bytes and packets has used a 64 bit integer for quite
some time (2.6+ IIRC).  Make the procfs value extraction use
correct types and change internal types used to rate convert
these counters (within the NetworkIO Meter) 64 bit integers,
where appropriate.
2021-03-01 11:55:15 +11:00
Nathan Scott
7433bf4b18 Correctly detect failure to initialize boottime
A zero value for btime (boottime) in /proc/stat is a
real situation that happens, so deal with this case.

Resolves https://github.com/htop-dev/htop/issues/527
2021-02-15 19:32:55 +11:00
Nathan Scott
8cd90f0c4a Fix a couple of small spelling mistakes in comments 2021-02-15 12:54:20 +11:00
Christian Göttsche
f273bfd083 Linux: restore memory calculation regarding HugePages
Subtract the total amount of huge page memory from total and used memory.

Restores behavior from #450 (see also #447)

Follow-up of 3d497a37
2021-02-09 16:01:05 +01:00
Christian Göttsche
3d497a3760 Linux: overhaul memory partition
Use similar calculation than procps.
Show AvailableMemory in text mode.
Use total minus available memory instead of manually computed used-
memory as fraction part in bar mode (if available).
2021-02-07 12:41:52 +01:00
Christian Göttsche
fd4e6b432b Use MainPanel type in State struct
The State struct holds a pointer to the main process panel.
Use the distinct MainPanel type, to improve maintainability regrading
its usage.
This avoids usages of down-casts from Panel to MainPanel, only up-casts
from MainPanel to Panel are now required.
2021-02-05 14:12:49 +01:00
Daniel Lange
ef87877826 Fix typo, align with man page, drop dots 2021-02-02 10:08:59 +01:00
Daniel Lange
de3e271206 Merge branch 'comm' of cgzones/htop
Already in Debian so making sure upstream has it, too
2021-02-02 09:56:32 +01:00
Benny Baumann
12208af777 DiD: Avoid negative cmdlineBasenameOffset 2021-02-01 22:09:39 +01:00
ahgamut
51e79ddc07 [#480] SysArchMeter to view kernel/arch info
At start, SysArchMeter calls the uname function to obtain the kernel
version and architecture. If available, the distro version is obtained
by calling lsb_release. The obtained values are stored in static
variables and used when updating the meter.
2021-01-31 20:08:09 +01:00
Christian Göttsche
7bfa466abe Linux: silence UBSAN implicit conversions
pgrp and session might be -1

linux/LinuxProcessList.c:312:20: runtime error: implicit conversion from type 'unsigned long' of value 18446744073709551615 (64-bit, unsigned) to type 'unsigned int' changed the value to 4294967295 (32-bit, unsigned)
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior linux/LinuxProcessList.c:312:20 in
linux/LinuxProcessList.c:314:23: runtime error: implicit conversion from type 'unsigned long' of value 18446744073709551615 (64-bit, unsigned) to type 'unsigned int' changed the value to 4294967295 (32-bit, unsigned)
SUMMARY: UndefinedBehaviorSanitizer: undefined-behavior linux/LinuxProcessList.c:314:23 in
2021-01-30 14:21:26 +01:00
Christian Göttsche
1014e897a7 Linux: document /proc/PID/stat field parsing 2021-01-30 14:21:26 +01:00
Christian Göttsche
69efa94f9f Use String_eq wrapper instead of raw strcmp 2021-01-30 14:21:26 +01:00