core: fix zombie processes remaining after the end of forked processes (closes #1994)

The clean of processes with waitpid() is now delayed after the kill(), so that there are no more zombies. In addition, this can be done manually if needed with `/sys waitpid`.
2026-07-07 02:03:13 +02:00 · 2023-10-10 19:23:43 +02:00
parent 408901d772
commit 02a05f63d5
23 changed files with 156 additions and 190 deletions
@@ -51,6 +51,7 @@ New features::

 Bug fixes::

+  * core: fix zombie processes after fork (hook process or connect) (issue #1994)
  * core: fix generation of TOTP on Big Endian systems (issue #2021)
  * core: fix cursor position after `/plugin list -i` or `/plugin list -il`
  * core: display focus hashtable for debug even if no key is matching
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Ondřej Súkup <mimi.vx@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2728,7 +2728,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 #, fuzzy
@@ -26,7 +26,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-10-05 08:04+0200\n"
 "Last-Translator: Nils Görs <weechatter@arcor.de>\n"
 "Language-Team: German <kde-i18n-de@kde.org>\n"
@@ -74,12 +74,10 @@ msgstr ""
 "Die Systemzeit ist nicht korrekt (%+ld Sekunden), reinitialisiere alle Uhren"

 #, c-format
-#| msgid "curl error %d (%s) (URL: \"%s\")\n"
 msgid "%sURL transfer error: %s (URL: \"%s\")"
 msgstr "%sURL Transferfehler: %s (URL: \"%s\")"

 #, c-format
-#| msgid "End of command '%s', timeout reached (%.1fs)"
 msgid "End of URL transfer '%s', timeout reached (%.1fs)"
 msgstr "Ende der URL-Übertragung „%s“, Zeitüberschreitung erreicht (%.1fs)"

@@ -1059,16 +1057,12 @@ msgid "WeeChat session saved (files *.upgrade)"
 msgstr "WeeChat Sitzung gesichert (Dateien *.upgrade)"

 #, c-format
-#| msgid ""
-#| "%sCan't upgrade: there is one or more background process (hook type "
-#| "'process' or 'connect')"
 msgid ""
 "%sCan't upgrade: there is one or more background process/thread running "
 "(hook type: process, connect or url)"
 msgstr ""
-"%sAktualisierung nicht möglich: Es laufen ein oder mehrere"
-" Hintergrundprozesse/-threads"
-"(Hook-Typ: 'process', 'connect' oder 'url')"
+"%sAktualisierung nicht möglich: Es laufen ein oder mehrere "
+"Hintergrundprozesse/-threads(Hook-Typ: 'process', 'connect' oder 'url')"

 #, c-format
 msgid "%sCan't upgrade: WeeChat binary \"%s\" does not exist"
@@ -1680,11 +1674,6 @@ msgid "debug functions"
 msgstr "Debug-Funktionen"

 #. TRANSLATORS: only text between angle brackets (eg: "<name>") must be translated
-#| msgid ""
-#| "list || set <plugin> <level> || dump|hooks [<plugin>] || buffer|certs|"
-#| "color|dirs|infolists|libs|memory|tags|term|windows || callbacks "
-#| "<duration>[<unit>] || mouse|cursor [verbose] || hdata [free] || time "
-#| "<command> || unicode <string>"
 msgid ""
 "list || set <plugin> <level> || dump|hooks [<plugin>] || buffer|certs|color|"
 "dirs|infolists|libs|memory|tags|term|url|windows || callbacks "
@@ -1696,50 +1685,6 @@ msgstr ""
 "<duration>[<unit>] || mouse|cursor [verbose] || hdata [free] || time "
 "<command> || unicode <string>"

-#| msgid ""
-#| "     list: list plugins with debug levels\n"
-#| "      set: set debug level for plugin\n"
-#| "   plugin: name of plugin (\"core\" for WeeChat core)\n"
-#| "    level: debug level for plugin (0 = disable debug)\n"
-#| "     dump: save memory dump in WeeChat log file (same dump is written "
-#| "when WeeChat crashes)\n"
-#| "    hooks: display infos about hooks (with a plugin: display detailed "
-#| "info about hooks created by the plugin)\n"
-#| "   buffer: dump buffer content with hexadecimal values in WeeChat log "
-#| "file\n"
-#| "callbacks: write hook and bar item callbacks that took more than "
-#| "\"duration\" in the WeeChat log file (0 = disable), where optional unit "
-#| "is one of:\n"
-#| "             us: microseconds (default)\n"
-#| "             ms: milliseconds\n"
-#| "              s: seconds\n"
-#| "              m: minutes\n"
-#| "              h: hours\n"
-#| "    certs: display number of loaded trusted certificate authorities\n"
-#| "    color: display infos about current color pairs\n"
-#| "   cursor: toggle debug for cursor mode\n"
-#| "     dirs: display directories\n"
-#| "    hdata: display infos about hdata (with free: remove all hdata in "
-#| "memory)\n"
-#| "infolists: display infos about infolists\n"
-#| "      key: enable keyboard and mouse debug: display raw codes, expanded "
-#| "key name and associated command ('q' to quit this mode)\n"
-#| "     libs: display infos about external libraries used\n"
-#| "   memory: display infos about memory usage\n"
-#| "    mouse: toggle debug for mouse\n"
-#| "     tags: display tags for lines\n"
-#| "     term: display infos about terminal\n"
-#| "  windows: display windows tree\n"
-#| "     time: measure time to execute a command or to send text to the "
-#| "current buffer\n"
-#| "  unicode: display information about string and unicode chars (evaluated, "
-#| "see /help eval)\n"
-#| "\n"
-#| "Examples:\n"
-#| "  /debug set irc 1\n"
-#| "  /debug mouse verbose\n"
-#| "  /debug time /filter toggle\n"
-#| "  /debug unicode ${chars:${\\u26C0}-${\\u26CF}}"
 msgid ""
 "     list: list plugins with debug levels\n"
 "      set: set debug level for plugin\n"
@@ -1820,8 +1765,8 @@ msgstr ""
 "    mouse: schaltet den debug-Modus für den Maus-Modus ein/aus\n"
 "     tags: zeigt für jede einzelne Zeile die dazugehörigen Schlagwörter an\n"
 "     term: zeigt Informationen über das Terminal an\n"
-"      url: zeigt Debug-Informationen für hook_url Aufrufe an (Ausgabe als"
-" Hashtable)\n"
+"      url: zeigt Debug-Informationen für hook_url Aufrufe an (Ausgabe als "
+"Hashtable)\n"
 "  windows: zeigt die Fensterstruktur an\n"
 "     time: misst die Zeit um einen Befehl auszuführen oder um einen Text in "
 "den aktuellen Buffer zu senden\n"
@@ -3575,13 +3520,23 @@ msgstr ""
 msgid "system actions"
 msgstr "Systemaktionen"

+#, fuzzy
+#| msgid ""
+#| "    get: display system info\n"
+#| " rlimit: display resource limits (see /help weechat.startup.sys_rlimit "
+#| "and \"man getrlimit\")\n"
+#| " rusage: display resource usage (see \"man getrusage\")\n"
+#| "suspend: suspend WeeChat and go back to the shell, by sending signal "
+#| "SIGTSTP to the WeeChat process"
 msgid ""
 "    get: display system info\n"
 " rlimit: display resource limits (see /help weechat.startup.sys_rlimit and "
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""
 "    get: Systeminformationen anzeigen\n"
 " rlimit: Ressourcengrenzen anzeigen (siehe /help weechat.startup.sys_rlimit "
@@ -6454,16 +6409,13 @@ msgid "not enough memory"
 msgstr "nicht genügend Speicher"

 #, c-format
-#| msgid "%sFilter \"%s\" not found"
 msgid "file \"%s\" not found"
 msgstr "Datei \"%s\", nicht gefunden"

 #, c-format
-#| msgid "%sCannot create file \"%s\""
 msgid "can not write file \"%s\""
 msgstr "Datei \"%s\" kann nicht erstellt werden"

-#| msgid "fork error"
 msgid "transfer error"
 msgstr "Übertragungsfehler"

@@ -7006,87 +6958,6 @@ msgstr ""
 msgid "bar item with list of buffers"
 msgstr "Bar-Item mit der Liste von Buffern"

-#| msgid ""
-#| " enable: enable buflist\n"
-#| "disable: disable buflist\n"
-#| " toggle: toggle buflist\n"
-#| "    bar: add the \"buflist\" bar\n"
-#| "refresh: force the refresh of the bar items (buflist, buflist2 buflist3, "
-#| "buflist4 and buflist5)\n"
-#| "\n"
-#| "The lines with buffers are displayed using string evaluation (see /help "
-#| "eval for the format), with these options:\n"
-#| "  - buflist.look.display_conditions: conditions to display a buffer in "
-#| "the list\n"
-#| "  - buflist.format.buffer: format for a buffer which is not current "
-#| "buffer\n"
-#| "  - buflist.format.buffer_current: format for the current buffer\n"
-#| "\n"
-#| "The following variables can be used in these options:\n"
-#| "  - bar item data (see hdata \"bar_item\" in API doc for a complete "
-#| "list), for example:\n"
-#| "    - ${bar_item.name}\n"
-#| "  - window data, where the bar item is displayed (there's no window in "
-#| "root bars, see hdata \"window\" in API doc for a complete list), for "
-#| "example:\n"
-#| "    - ${window.number}\n"
-#| "    - ${window.buffer.full_name}\n"
-#| "  - buffer data (see hdata \"buffer\" in API doc for a complete list), "
-#| "for example:\n"
-#| "    - ${buffer.number}\n"
-#| "    - ${buffer.name}\n"
-#| "    - ${buffer.full_name}\n"
-#| "    - ${buffer.short_name}\n"
-#| "    - ${buffer.nicklist_nicks_count}\n"
-#| "  - irc_server: IRC server data, defined only on an IRC buffer (see hdata "
-#| "\"irc_server\" in API doc)\n"
-#| "  - irc_channel: IRC channel data, defined only on an IRC channel buffer "
-#| "(see hdata \"irc_channel\" in API doc)\n"
-#| "  - extra variables added by buflist for convenience:\n"
-#| "    - ${format_buffer}: the evaluated value of option buflist.format."
-#| "buffer; this can be used in option buflist.format.buffer_current to just "
-#| "change the background color for example\n"
-#| "    - ${current_buffer}: a boolean (\"0\" or \"1\"), \"1\" if this is the "
-#| "current buffer; it can be used in a condition: ${if:"
-#| "${current_buffer}?...:...}\n"
-#| "    - ${merged}: a boolean (\"0\" or \"1\"), \"1\" if the buffer is "
-#| "merged with at least another buffer; it can be used in a condition: ${if:"
-#| "${merged}?...:...}\n"
-#| "    - ${format_number}: indented number with separator (evaluation of "
-#| "option buflist.format.number)\n"
-#| "    - ${number}: indented number, for example \" 1\" if there are between "
-#| "10 and 99 buffers; for merged buffers, this variable is set with number "
-#| "for the first buffer and spaces for the next buffers with same number\n"
-#| "    - ${number2}: indented number, for example \" 1\" if there are "
-#| "between 10 and 99 buffers\n"
-#| "    - ${number_displayed}: \"1\" if the number is displayed, otherwise "
-#| "\"0\"\n"
-#| "    - ${indent}: indentation for name (channel, private and list buffers "
-#| "are indented) (evaluation of option buflist.format.indent)\n"
-#| "    - ${format_nick_prefix}: colored nick prefix for a channel "
-#| "(evaluation of option buflist.format.nick_prefix)\n"
-#| "    - ${color_nick_prefix}: color of nick prefix for a channel (set only "
-#| "if the option buflist.look.nick_prefix is enabled)\n"
-#| "    - ${nick_prefix}: nick prefix for a channel (set only if the option "
-#| "buflist.look.nick_prefix is enabled)\n"
-#| "    - ${format_name}: formatted name (evaluation of option buflist.format."
-#| "name)\n"
-#| "    - ${name}: the short name (if set), with a fallback on the name\n"
-#| "    - ${color_hotlist}: the color depending on the highest hotlist level "
-#| "for the buffer (evaluation of option buflist.format.hotlist_xxx where xxx "
-#| "is the level)\n"
-#| "    - ${format_hotlist}: the formatted hotlist (evaluation of option "
-#| "buflist.format.hotlist)\n"
-#| "    - ${hotlist}: the raw hotlist\n"
-#| "    - ${hotlist_priority}: \"none\", \"low\", \"message\", \"private\" or "
-#| "\"highlight\"\n"
-#| "    - ${hotlist_priority_number}: -1 = none, 0 = low, 1 = message, 2 = "
-#| "private, 3 = highlight\n"
-#| "    - ${format_lag}: the lag for an IRC server buffer, empty if there's "
-#| "no lag (evaluation of option buflist.format.lag)\n"
-#| "    - ${format_tls_version}: indicator of TLS version for a server "
-#| "buffer, empty for channels (evaluation of option buflist.format."
-#| "tls_version)"
 msgid ""
 " enable: enable buflist\n"
 "disable: disable buflist\n"
@@ -7170,9 +7041,9 @@ msgstr ""
 "disable: buflist deaktivieren\n"
 " toggle: buflist umschalten\n"
 "    bar: fügt eine \"buflist\" Bar hinzu\n"
-"refresh: erzwingt die Aktualisierung einiger Bar-Items (wenn kein Element"
-" angegeben ist, werden alle Bar-Items aktualisiert, entsprechend der Option"
-" buflist.look.use_items)\n"
+"refresh: erzwingt die Aktualisierung einiger Bar-Items (wenn kein Element "
+"angegeben ist, werden alle Bar-Items aktualisiert, entsprechend der Option "
+"buflist.look.use_items)\n"
 "\n"
 "Jede Zeile die einen Buffer anzeigt, wird mittels Zeichenketten-Evaluation "
 "dargestellt (siehe /help eval für das Format), dazu werden folgende Optionen "
@@ -7251,7 +7122,6 @@ msgstr ""
 "    - ${format_tls_version}: Indikator der TLS Version für den Serverbuffer, "
 "Channels bleiben unberührt (evaluiert aus Option buflist.format.tls_version)"

-#| msgid "list of bar items"
 msgid "buflist bar items"
 msgstr "Buflist Bar-Items"

@@ -13836,8 +13706,8 @@ msgstr ""
 msgid ""
 "%s%s: zstd compression is not available, logger files will not be compressed"
 msgstr ""
-"%s%s: zstd Komprimierung ist nicht verfügbar, Logger-Dateien werden nicht"
-" komprimiert"
+"%s%s: zstd Komprimierung ist nicht verfügbar, Logger-Dateien werden nicht "
+"komprimiert"

 msgid ""
 "logging level for this buffer (0 = logging disabled, 1 = a few messages "
@@ -16820,8 +16690,7 @@ msgstr "verwaltet Trigger, das Schweizer Armeemesser für WeeChat"
 msgid ""
 "list [-o|-ol|-i|-il] || listfull || listdefault || add|addoff|addreplace "
 "<name> <hook> "
-"[\"<arguments>\" [\"<conditions>\" [\"<regex>\" [\"<command>\" [\"<"
-"return_code>\" [\"<post_action>\"]]]]]] "
+"[\"<arguments>\" [\"<conditions>\" [\"<regex>\" [\"<command>\" [\"<return_code>\" [\"<post_action>\"]]]]]] "
 "|| addinput [<hook>] || input|output|recreate <name> || set <name> <option> "
 "<value> || rename|copy <name> <new_name> || enable|disable|toggle [<name>|-"
 "all [<name>...]] || restart <name>|-all [<name>...] || show <name> || del "
@@ -16830,8 +16699,7 @@ msgid ""
 msgstr ""
 "list [-o|-ol|-i|-il] || listfull || listdefault || add|addoff|addreplace "
 "<name> <hook> "
-"[\"<arguments>\" [\"<conditions>\" [\"<regex>\" [\"<command>\" [\"<"
-"return_code>\" [\"<post_action>\"]]]]]] "
+"[\"<arguments>\" [\"<conditions>\" [\"<regex>\" [\"<command>\" [\"<return_code>\" [\"<post_action>\"]]]]]] "
 "|| addinput [<hook>] || input|output|recreate <name> || set <name> <option> "
 "<value> || rename|copy <name> <new_name> || enable|disable|toggle [<name>|-"
 "all [<name>...]] || restart <name>|-all [<name>...] || show <name> || del "
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Santiago Forero <santiago@forero.xyz>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -3287,7 +3287,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 #, fuzzy
@@ -21,8 +21,8 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
-"PO-Revision-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
+"PO-Revision-Date: 2023-10-10 19:22+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
 "Language: fr\n"
@@ -3449,14 +3449,18 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""
 "    get : afficher des informations système\n"
 " rlimit : afficher les limites de ressource (voir /help weechat.startup."
 "sys_rlimit et \"man getrlimit\")\n"
 " rusage : afficher l'utilisation des ressources (voir \"man getrusage\")\n"
 "suspend : suspendre WeeChat et retourner au shell, en envoyant le signal "
-"SIGTSTP au processus WeeChat"
+"SIGTSTP au processus WeeChat\n"
+"waitpid : prendre connaissance des processus fils qui sont terminés (pour "
+"éviter les processus \"zombies\")"

 msgid "toggle value of a config option"
 msgstr "basculer la valeur d'une option de configuration"
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Andras Voroskoi <voroskoi@frugalware.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2447,7 +2447,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 #, fuzzy
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Esteban I. Ruiz Moreno <exio4.com@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2887,7 +2887,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 #, fuzzy
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: AYANOKOUZI, Ryuunosuke <i38w7i3@yahoo.co.jp>\n"
 "Language-Team: Japanese <https://github.com/l/weechat/tree/master/"
@@ -3441,7 +3441,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 #, fuzzy
@@ -22,7 +22,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Krzysztof Korościk <soltys@soltys.info>\n"
 "Language-Team: Polish <kde-i18n-doc@kde.org>\n"
@@ -3914,7 +3914,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 msgid "toggle value of a config option"
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Vasco Almeida <vascomalmeida@sapo.pt>\n"
 "Language-Team: Portuguese <>\n"
@@ -3409,7 +3409,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 #, fuzzy
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Érico Nogueira <ericonr@disroot.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2952,7 +2952,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 #, fuzzy
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Aleksey V Zapparov AKA ixti <ixti@member.fsf.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2471,7 +2471,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 #, fuzzy
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Ivan Pešić <ivan.pesic@gmail.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -3440,13 +3440,23 @@ msgstr ""
 msgid "system actions"
 msgstr "системске акције"

+#, fuzzy
+#| msgid ""
+#| "    get: display system info\n"
+#| " rlimit: display resource limits (see /help weechat.startup.sys_rlimit "
+#| "and \"man getrlimit\")\n"
+#| " rusage: display resource usage (see \"man getrusage\")\n"
+#| "suspend: suspend WeeChat and go back to the shell, by sending signal "
+#| "SIGTSTP to the WeeChat process"
 msgid ""
 "    get: display system info\n"
 " rlimit: display resource limits (see /help weechat.startup.sys_rlimit and "
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""
 "    get: приказује информације о систему\n"
 " rlimit: приказује границе ресурса (погледајте /help weechat.startup."
@@ -20,7 +20,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2023-09-06 19:13+0200\n"
 "Last-Translator: Emir SARI <emir_sari@icloud.com>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -3525,7 +3525,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 msgid "toggle value of a config option"
@@ -21,7 +21,7 @@ msgid ""
 msgstr ""
 "Project-Id-Version: WeeChat\n"
 "Report-Msgid-Bugs-To: flashcode@flashtux.org\n"
-"POT-Creation-Date: 2023-10-01 16:11+0200\n"
+"POT-Creation-Date: 2023-10-10 19:22+0200\n"
 "PO-Revision-Date: 2014-08-16 10:27+0200\n"
 "Last-Translator: Sébastien Helleu <flashcode@flashtux.org>\n"
 "Language-Team: weechat-dev <weechat-dev@nongnu.org>\n"
@@ -2279,7 +2279,9 @@ msgid ""
 "\"man getrlimit\")\n"
 " rusage: display resource usage (see \"man getrusage\")\n"
 "suspend: suspend WeeChat and go back to the shell, by sending signal SIGTSTP "
-"to the WeeChat process"
+"to the WeeChat process\n"
+"waitpid: acknowledge the end of children processes (to prevent \"zombie\" "
+"processes)"
 msgstr ""

 msgid "toggle value of a config option"
@@ -270,7 +270,7 @@ hook_connect_free_data (struct t_hook *hook)
    if (HOOK_CONNECT(hook, child_pid) > 0)
    {
        kill (HOOK_CONNECT(hook, child_pid), SIGKILL);
-        waitpid (HOOK_CONNECT(hook, child_pid), NULL, 0);
+        hook_schedule_clean_children ();
        HOOK_CONNECT(hook, child_pid) = 0;
    }
    if (HOOK_CONNECT(hook, child_read) != -1)
@@ -603,7 +603,6 @@ hook_process_timer_cb (const void *pointer, void *data, int remaining_calls)
                             ((float)HOOK_PROCESS(hook_process, timeout)) / 1000);
        }
        kill (HOOK_PROCESS(hook_process, child_pid), SIGKILL);
-        usleep (1000);
        unhook (hook_process);
    }
    else
@@ -863,7 +862,7 @@ hook_process_free_data (struct t_hook *hook)
    if (HOOK_PROCESS(hook, child_pid) > 0)
    {
        kill (HOOK_PROCESS(hook, child_pid), SIGKILL);
-        waitpid (HOOK_PROCESS(hook, child_pid), NULL, 0);
+        hook_schedule_clean_children ();
        HOOK_PROCESS(hook, child_pid) = 0;
    }
    if (HOOK_PROCESS(hook, child_read[HOOK_PROCESS_STDIN]) != -1)
@@ -6795,6 +6795,12 @@ COMMAND_CALLBACK(sys)
        return WEECHAT_RC_OK;
    }

+    if (string_strcmp (argv[1], "waitpid") == 0)
+    {
+        sys_waitpid ();
+        return WEECHAT_RC_OK;
+    }
+
    COMMAND_ERROR;
 }

@@ -9273,15 +9279,19 @@ command_init ()
        NULL, "sys",
        N_("system actions"),
        "get rlimit|rusage"
-        " || suspend",
+        " || suspend"
+        " || waitpid",
        N_("    get: display system info\n"
           " rlimit: display resource limits "
           "(see /help weechat.startup.sys_rlimit and \"man getrlimit\")\n"
           " rusage: display resource usage (see \"man getrusage\")\n"
           "suspend: suspend WeeChat and go back to the shell, by sending "
-           "signal SIGTSTP to the WeeChat process"),
+           "signal SIGTSTP to the WeeChat process\n"
+           "waitpid: acknowledge the end of children processes (to prevent "
+           "\"zombie\" processes)"),
        "get rlimit|rusage"
-        " || suspend",
+        " || suspend"
+        " || waitpid",
        &command_sys, NULL, NULL);
    hook_command (
        NULL, "toggle",
@@ -38,6 +38,7 @@
 #include "wee-log.h"
 #include "wee-signal.h"
 #include "wee-string.h"
+#include "wee-sys.h"
 #include "wee-util.h"
 #include "../gui/gui-chat.h"
 #include "../plugins/plugin.h"
@@ -627,6 +628,35 @@ hook_set (struct t_hook *hook, const char *property, const char *value)
    }
 }

+/*
+ * Callback used to clean all children (forked processes) by acknowledging
+ * their end.
+ */
+
+int
+hook_timer_clean_children_cb (const void *pointer, void *data,
+                              int remaining_calls)
+{
+    /* make C compiler happy */
+    (void) pointer;
+    (void) data;
+    (void) remaining_calls;
+
+    sys_waitpid ();
+
+    return WEECHAT_RC_OK;
+}
+
+/*
+ * Schedule a cleanup timer to clean children (forked processes).
+ */
+
+void
+hook_schedule_clean_children ()
+{
+    hook_timer (NULL, 100, 0, 1, &hook_timer_clean_children_cb, NULL, NULL);
+}
+
 /*
 * Unhooks something.
 */
@@ -146,6 +146,7 @@ extern void hook_callback_end (struct t_hook *hook,
 extern char *hook_get_description (struct t_hook *hook);
 extern void hook_set (struct t_hook *hook, const char *property,
                      const char *value);
+extern void hook_schedule_clean_children ();
 extern void unhook (struct t_hook *hook);
 extern void unhook_all_plugin (struct t_weechat_plugin *plugin,
                               const char *subplugin);
@@ -32,6 +32,7 @@
 #ifdef HAVE_SYS_RESOURCE_H
 #include <sys/resource.h>
 #endif
+#include <sys/wait.h>

 #include "weechat.h"
 #include "wee-config.h"
@@ -341,3 +342,21 @@ sys_display_rusage ()
                     "getrusage");
 #endif /* HAVE_SYS_RESOURCE_H */
 }
+
+/*
+ * Calls waitpid() to acknowledge the end of forked processes, thus preventing
+ * them to become zombies.
+ */
+
+void
+sys_waitpid ()
+{
+    int i;
+
+    /* acknowledge the end of up to 42 forked processes */
+    i = 0;
+    while ((i < 42) && (waitpid (-1, NULL, WNOHANG) > 0))
+    {
+        i++;
+    }
+}
@@ -31,5 +31,6 @@ struct t_rlimit_resource
 extern void sys_setrlimit ();
 extern void sys_display_rlimit ();
 extern void sys_display_rusage ();
+extern void sys_waitpid ();

 #endif /* WEECHAT_SYS_H */
@@ -483,7 +483,8 @@ xfer_network_child_kill (struct t_xfer *xfer)
    if (xfer->child_pid > 0)
    {
        kill (xfer->child_pid, SIGKILL);
-        waitpid (xfer->child_pid, NULL, 0);
+        weechat_command (weechat_buffer_search_main (),
+                         "/mute /wait 100ms /sys waitpid");
        xfer->child_pid = 0;
    }