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fix: improve error handling in Process

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ge
2026-01-08 05:39:19 +03:00
parent 04faf33542
commit 21ebb3dbfa
1 changed files with 24 additions and 15 deletions
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39
proc.c.v
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@@ -98,34 +98,43 @@ pub fn (s ProcessState) str() string {
// [execve(3p)](https://man7.org/linux/man-pages/man3/exec.3p.html)
// calls. Return value is the child process identifier.
pub fn (mut p Process) start() !int {
if p.pid != -1 {
return error('runcmd: process already started')
}
printdbg('${@METHOD}: current pid before fork() = ${v_getpid()}')
printdbg('${@METHOD}: executing pre-fork callback')
p.pre_fork_cb(mut p)!
pid := os.fork()
p.pid = pid
if pid == -1 {
return os.last_error()
}
printdbg('${@METHOD}: pid after fork() = ${pid}')
if pid != 0 {
//
// This is the parent process after the fork
// This is the parent process
//
printdbg('${@METHOD}: executing post-fork parent callback')
p.post_fork_parent_cb(mut p)!
return pid
} else {
//
// This is the child process
//
printdbg('${@METHOD}: executing post-fork child callback')
p.post_fork_child_cb(mut p)!
if p.dir != '' {
os.chdir(p.dir)!
}
mut env := []string{}
for k, v in p.env {
env << k + '=' + v
}
os.execve(p.path, p.argv, env)!
}
//
// This is the child process
//
printdbg('${@METHOD}: executing post-fork child callback')
p.post_fork_child_cb(mut p)!
if p.dir != '' {
os.chdir(p.dir)!
}
mut env := []string{}
for k, v in p.env {
env << k + '=' + v
}
os.execve(p.path, p.argv, env)!
return pid
}