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process join

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This commit is contained in:
Nikita Smith
2026-06-02 12:10:23 -07:00
committed by Ryan Fleury
parent a60b61cafd
commit 266d66250c
1 changed files with 22 additions and 25 deletions
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src/linux/base/linux_base.c
+20 -23
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@@ -1285,37 +1285,34 @@ process_launch(ProcessLaunchParams *params)
internal B32
process_join(Process process, U64 endt_us, U64 *exit_code_out)
{
pid_t pid = (pid_t)process.u64[0];
B32 result = 0;
if(endt_us == 0)
{
if(kill(pid, 0) == 0)
{
int status;
waitpid(pid, &status, WNOHANG);
}
else { Assert(0 && "failed to get status from pid"); }
}
else if(endt_us == max_U64)
{
pid_t pid = (pid_t)process.u64[0];
for(;;)
{
int status = 0;
int w = waitpid(pid, &status, 0);
if(w == -1)
{
break;
}
if(WIFEXITED(status) || WIFSTOPPED(status) || WIFSIGNALED(status))
pid_t wait_result = OS_LNX_RETRY_ON_EINTR(waitpid(pid, &status, (endt_us == max_U64) ? 0 : WNOHANG));
if((wait_result == pid) && (WIFEXITED(status) || WIFSIGNALED(status)))
{
result = 1;
if(exit_code_out != 0)
{
if (WIFEXITED(status)) { *exit_code_out = WEXITSTATUS(status); }
else if(WIFSIGNALED(status)) { *exit_code_out = WTERMSIG(status) + 128; }
}
break;
}
}
}
else
{
NotImplemented;
if(wait_result == -1) { break; }
if(endt_us == 0) { break; }
U64 now_us = now_time_us();
if(now_us >= endt_us) { break; }
U64 left_us = endt_us - now_us;
U64 sleep_us = Min(left_us, Thousand(1));
usleep((useconds_t)sleep_us);
}
return result;
}