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Faster (non-blocking) update of processes #9

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Faster (non-blocking) update of processes #9

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f7c18b0
Set numOfGoroutines on first update and don't flood
VasilyKaiser Mar 4, 2023
269b2dd
Use global variable
VasilyKaiser Mar 4, 2023
b6da810
Increase ticking
VasilyKaiser Mar 4, 2023
4f4ed89
Cover possibile bad case where some of base goroutines would die for …
VasilyKaiser Mar 4, 2023
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19 changes: 14 additions & 5 deletions main.go
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Original file line number Diff line number Diff line change
Expand Up @@ -5,6 +5,7 @@ import (
"os"
"os/exec"
"regexp"
"runtime"
"strconv"
"strings"
"syscall"
Expand Down Expand Up @@ -60,7 +61,9 @@ var (
MarginRight(2).
Underline(true)

docStyle = lipgloss.NewStyle().Padding(1, 2, 1, 2)
docStyle = lipgloss.NewStyle().Padding(1, 2, 1, 2)
processes []list.Item
numOfGoroutines = 0
)

type item struct {
Expand Down Expand Up @@ -123,8 +126,14 @@ func (m model) Update(msg tea.Msg) (tea.Model, tea.Cmd) {
}

case tickMsg:
cmd := m.list.SetItems(getProcesses())
return m, tea.Batch(tickCmd(), cmd)
if numOfGoroutines == 0 {
numOfGoroutines = runtime.NumGoroutine()
} else if numOfGoroutines >= runtime.NumGoroutine() {
go func() {
processes = getProcesses()
}()
}
return m, tea.Batch(tickCmd(), m.list.SetItems(processes))

case tea.WindowSizeMsg:
h, v := docStyle.GetFrameSize()
Expand All @@ -149,7 +158,7 @@ func (m model) View() string {

func main() {
// Get processes running on listening ports
processes := getProcesses()
processes = getProcesses()

//Initialize the model
m := model{
Expand All @@ -173,7 +182,7 @@ func main() {

// Used to refresh the running processes on listening ports in the list view
func tickCmd() tea.Cmd {
return tea.Tick(time.Second*1, func(t time.Time) tea.Msg {
return tea.Tick(time.Millisecond*600, func(t time.Time) tea.Msg {
return tickMsg(t)
})
}
Expand Down