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311 lines
9.0 KiB
Bash
311 lines
9.0 KiB
Bash
# invoked in worker: _p9k_worker_main <pgid>
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function _p9k_worker_main() {
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local pgid=$1
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mkfifo $_p9k__worker_file_prefix.fifo || return
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echo -nE - s${1}$'\x1e' || return
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exec 0<$_p9k__worker_file_prefix.fifo || return
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rm $_p9k__worker_file_prefix.fifo || return
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function _p9k_worker_reply_begin() { print -nr -- e }
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function _p9k_worker_reply_end() { print -nr -- $'\x1e' }
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function _p9k_worker_reply() { print -nr -- e${(pj:\n:)@}$'\x1e' }
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typeset -g IFS=$' \t\n\0'
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local req fd
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local -a ready
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local -A inflight # fd => id$'\x1f'sync
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local -A last_async
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local -ri _p9k_worker_runs_me=1
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{
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while zselect -a ready 0 ${(k)inflight}; do
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[[ $ready[1] == -r ]] || return
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for fd in ${ready:1}; do
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if [[ $fd == 0 ]]; then
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local buf=
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while true; do
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sysread -t 0 'buf[$#buf+1]' && continue
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(( $? == 4 )) || return
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[[ $buf[-1] == (|$'\x1e') ]] && break
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sysread 'buf[$#buf+1]' || return
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done
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for req in ${(ps:\x1e:)buf}; do
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local parts=("${(@ps:\x1f:)req}") # id cond async sync
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if () { eval $parts[2] }; then
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if [[ -n $parts[3] ]]; then
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sysopen -r -o cloexec -u fd <(
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() { eval $parts[3]; } && print -n '\x1e') || return
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inflight[$fd]=$parts[1]$'\x1f'$parts[4]
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continue
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fi
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() { eval $parts[4] }
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fi
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if [[ -n $parts[1] ]]; then
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print -rn -- d$parts[1]$'\x1e' || return
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fi
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done
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else
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local cur=
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while true; do
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sysread -i $fd 'cur[$#cur+1]' && continue
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(( $? == 5 )) || return
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break
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done
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local parts=("${(@ps:\x1f:)inflight[$fd]}") # id sync
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if [[ $cur == *$'\x1e' ]]; then
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cur[-1]=""
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() {
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local prev
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if [[ -n $parts[1] ]]; then
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prev=$last_async[$parts[1]]
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last_async[$parts[1]]=$cur
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fi
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eval $parts[2]
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}
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fi
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if [[ -n $parts[1] ]]; then
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print -rn -- d$parts[1]$'\x1e' || return
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fi
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unset "inflight[$fd]"
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exec {fd}>&-
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fi
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done
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done
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} always {
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kill -- -$pgid
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}
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}
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typeset -g _p9k__worker_pid
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typeset -g _p9k__worker_req_fd
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typeset -g _p9k__worker_resp_fd
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typeset -g _p9k__worker_shell_pid
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typeset -g _p9k__worker_file_prefix
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typeset -gA _p9k__worker_request_map
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typeset -ga _p9k__worker_request_queue
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# invoked in master: _p9k_worker_send_params [param]...
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function _p9k_worker_send_params() { }
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# invoked in master: _p9k_worker_send_functions [function-name]...
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function _p9k_worker_send_functions() { }
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# invoked in master: _p9k_worker_invoke <request-id> <cond> <async> <sync>
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function _p9k_worker_invoke() {
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if [[ -n $_p9k__worker_resp_fd ]]; then
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local req=$1$'\x1f'$2$'\x1f'$3$'\x1f'$4$'\x1e'
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if [[ -n $_p9k__worker_req_fd && $+_p9k__worker_request_map[$1] == 0 ]]; then
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[[ -n $1 ]] && _p9k__worker_request_map[$1]=
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print -rnu $_p9k__worker_req_fd -- $req
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return
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fi
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if [[ -n $1 ]]; then
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(( $+_p9k__worker_request_map[$1] )) || _p9k__worker_request_queue+=$1
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_p9k__worker_request_map[$1]=$req
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else
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_p9k__worker_request_queue+=$req
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fi
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else
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if () { eval $2 }; then
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local REPLY=
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() { eval $3 }
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() { eval $4 }
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fi
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fi
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}
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function _p9k_worker_cleanup() {
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emulate -L zsh
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setopt no_hist_expand extended_glob no_prompt_bang prompt_{percent,subst} no_aliases
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[[ $_p9k__worker_shell_pid == $sysparams[pid] ]] && _p9k_worker_stop
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return 0
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}
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function _p9k_worker_stop() {
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emulate -L zsh
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setopt no_hist_expand extended_glob no_prompt_bang prompt_{percent,subst} no_aliases
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add-zsh-hook -D zshexit _p9k_worker_cleanup
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[[ -n $_p9k__worker_resp_fd ]] && zle -F $_p9k__worker_resp_fd
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[[ -n $_p9k__worker_resp_fd ]] && exec {_p9k__worker_resp_fd}>&-
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[[ -n $_p9k__worker_req_fd ]] && exec {_p9k__worker_req_fd}>&-
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[[ -n $_p9k__worker_pid ]] && kill -- -$_p9k__worker_pid 2>/dev/null
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_p9k__worker_pid=
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_p9k__worker_req_fd=
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_p9k__worker_resp_fd=
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_p9k__worker_shell_pid=
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_p9k__worker_request_map=()
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_p9k__worker_request_queue=()
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return 0
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}
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function _p9k_worker_receive() {
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emulate -L zsh
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setopt no_hist_expand extended_glob no_prompt_bang prompt_{percent,subst} no_aliases
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{
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(( $# <= 1 )) || return
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local buf resp reset
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while true; do
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sysread -t 0 -i $_p9k__worker_resp_fd 'buf[$#buf+1]' && continue
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(( $? == 4 )) || return
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[[ $buf[-1] == (|$'\x1e') ]] && break
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sysread -i $_p9k__worker_resp_fd 'buf[$#buf+1]' || return
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done
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for resp in ${(ps:\x1e:)buf}; do
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local arg=$resp[2,-1]
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case $resp[1] in
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p) ;;
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d)
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local req=$_p9k__worker_request_map[$arg]
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if [[ -n $req ]]; then
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_p9k__worker_request_map[$arg]=
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print -rnu $_p9k__worker_req_fd -- $req || return
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else
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unset "_p9k__worker_request_map[$arg]"
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fi
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;;
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e)
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if (( start_time )); then
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local -F end_time=EPOCHREALTIME
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local -F3 latency=$((1000*(end_time-start_time)))
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echo "latency: $latency ms" >>/tmp/log
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start_time=0
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fi
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reset=1
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() { eval $arg }
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;;
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s)
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[[ -z $_p9k__worker_pid ]] || return
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[[ $arg == <1-> ]] || return
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_p9k__worker_pid=$arg
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sysopen -w -o cloexec -u _p9k__worker_req_fd $_p9k__worker_file_prefix.fifo || return
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local req=
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for req in $_p9k__worker_request_queue; do
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if [[ $req != *$'\x1e' ]]; then
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local id=$req
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req=$_p9k__worker_request_map[$id]
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_p9k__worker_request_map[$id]=
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fi
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print -rnu $_p9k__worker_req_fd -- $req || return
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done
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_p9k__worker_request_queue=()
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;;
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*)
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return 1
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;;
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esac
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done
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(( reset )) && _p9k_reset_prompt
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return 0
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} always {
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(( $? )) && _p9k_worker_stop
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}
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}
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function _p9k_worker_start() {
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setopt no_bgnice monitor
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{
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[[ -n $_p9k__worker_resp_fd ]] && return
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_p9k__worker_file_prefix=${TMPDIR:-/tmp}/p10k.worker.$EUID.$$.$EPOCHSECONDS
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sysopen -r -o cloexec -u _p9k__worker_resp_fd <(
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if [[ -n $_POWERLEVEL9K_WORKER_LOG_LEVEL ]]; then
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exec 2>$_p9k__worker_file_prefix.log
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setopt xtrace
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else
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exec 2>/dev/null
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fi
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# todo: remove
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exec 2>>/tmp/log
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setopt xtrace
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zmodload zsh/zselect || return
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! { zselect -t0 || (( $? != 1 )) } || return
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local pgid=$sysparams[pid]
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_p9k_worker_main $pgid &
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{
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trap '' PIPE
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while syswrite p$'\x1e'; do zselect -t 1000; done
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kill -- -$pgid
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} &
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exec =true) || return
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zle -F $_p9k__worker_resp_fd _p9k_worker_receive
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_p9k__worker_shell_pid=$sysparams[pid]
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add-zsh-hook zshexit _p9k_worker_cleanup
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} always {
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(( $? )) && _p9k_worker_stop
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}
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}
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# todo: remove
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return
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function _p9k_reset_prompt() {
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zle && zle reset-prompt && zle -R
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}
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emulate -L zsh -o prompt_subst # -o xtrace
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POWERLEVEL9K_WORKER_LOG_LEVEL=DEBUG
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zmodload zsh/datetime
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zmodload zsh/system
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autoload -Uz add-zsh-hook
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typeset -F start_time=EPOCHREALTIME
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_p9k_worker_start
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echo -E - $((1000*(EPOCHREALTIME-start_time)))
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function foo_cond() {
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typeset -gi foo_counter
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typeset -g foo="[$bar] cond $1 $((foo_counter++))"
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}
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function foo_async() {
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sleep 1
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REPLY="$foo / async $1"
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}
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function foo_sync() {
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REPLY+=" / sync $1"
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_p9k_worker_reply "typeset -g foo=${(q)REPLY}"
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}
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() {
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typeset -g RPROMPT='$foo %*'
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typeset -g bar='lol'
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_p9k_worker_send_params bar
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local f
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for f in foo_{cond,async,sync}; do
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_p9k_worker_invoke "" "function $f() { $functions[$f] }" "" ""
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done
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() {
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local -i i
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for i in {1..10}; do
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_p9k_worker_invoke foo$i "foo_cond c$i\$\{" "foo_async a$i\$\{" "foo_sync s$i\$\{"
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done
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}
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}
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function in_worker() {
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_p9k_worker_reply 'echo roundtrip: $((1000*(EPOCHREALTIME-'$1'))) >>/tmp/log'
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}
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_p9k_worker_invoke "" "function in_worker() { $functions[in_worker] }" "" ""
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_p9k_worker_invoke w "in_worker $EPOCHREALTIME" "" ""
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# for i in {1..100}; do _p9k_worker_invoke w$i "in_worker $EPOCHREALTIME"; done
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# TODO:
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#
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# - Segment API: _p9k_prompt_foo_worker_{params,cond,async,sync}.
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# - _p9k_worker_request -- cacheable variable that contains full request to worker.
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# - _p9k_set_prompt sends stuff to worker or evals it.
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# - _p9k_on_expand has _REALTIME check at the top and sends keep-alive to worker.
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