The debugger command doesn't seem to work when using multiple threads at the same time.

Abierto
#1,027 3 comentarios 0 reacciones 0 asignados Ver en GitHub

Nadie ha tomado este issue todavía.

Evaluación

Dificultad
4/5
Tiempo estimado
3-5 días
Aptitud para principiantes
35/100
Tipo de issue
Error
Claridad
Bastante claro
Estado de actividad
Estancado
Stack tecnológico
ruby
Área
devtools

Línea de trabajo

Start by running the reproduced Ruby program with require "debug", two threads, and debugger statements. Trace how the debugger handles simultaneous thread breakpoints and local-variable evaluation; the fix is complete when each breakpoint reports the matching local variable and continue resumes execution without hanging.

Escrito por el modelo de indexación a partir del texto del issue.

Descripción

bug

Your environment

  • ruby -v: 3.2.2
  • rdbg -v: 1.8.0

Describe the bug

Doesn't seem to work well with multithreaded debugger statements. The program does not print out expected local variables and seems to hang forever after last continue statement.

To Reproduce

Given the following ruby code:

require "debug"

thr1 = Thread.new {
  hello = "world"

  debugger

  puts hello
}


thr2 = Thread.new {
  hello = "hello"

  debugger

  puts hello
}

thr1.join
thr2.join

The first time I reach a breakpoint it shows me in the hello = "hello" block. When I type out hello though it than jumps me to hello = "world" block. After typing out hello a second time, it prints out the string "hello" instead of "world". If I type continue it hangs forever after that. If I run the program without the debugger statements it doesn't hang.

Expected behavior
I would expect debugger to be somewhat threadsafe. Obviously debugger cannot necessarily control the order of these two debuggers. The second debug statement may execute first but I'd expect that the breakpoint would match the local variable and I'd expect typing continue would than make the program keep running and go to the next debugger statement or terminate the program if no more debugger statements.

Lenguaje dominante
Ruby
Estrellas
1.3k
Forks
146
Sin PR fusionados en 30 d

Guía de contribución

Abrir la guía de contribución

Primeros pasos

  1. Lee el issue completo y luego la guía de contribución del proyecto.
  2. Comenta en el issue que vas a ocuparte — evita que dos personas hagan lo mismo.
  3. Haz un fork del repositorio y trabaja en una rama.
  4. Abre un pull request que haga referencia al número del issue.

Más de ruby/debug

Todos los issues de ruby/debug

Issues similares

Más issues de Ruby

Recibe los nuevos issues en tu correo

Un resumen breve de issues de GitHub para principiantes.