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Why are command-line utilities stored in "apps"? And why are apps like "editor" or "terminal" top-level directories? Command-line utilities now go in "utils". GUI stuff now goes in "gui". This includes: libui -> gui/libui, wind -> gui/wind, GUI apps -> gui/apps, editor&terminal -> gui/apps... System services go in "system".
45 lines
1.0 KiB
C++
45 lines
1.0 KiB
C++
#include <errno.h>
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#include <os/ArgumentParser.h>
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#include <os/File.h>
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#include <pwd.h>
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#include <sys/pstat.h>
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#include <time.h>
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Result<int> luna_main(int argc, char** argv)
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{
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os::ArgumentParser parser;
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parser.add_description("Show a list of processes on the system.");
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parser.add_system_program_info("ps"_sv);
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parser.parse(argc, argv);
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os::println("UID PID PPID TIME CMD");
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pid_t last = pstat(-1, nullptr);
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for (pid_t pid = 1; pid <= last; pid++)
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{
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static process ps;
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if (pstat(pid, &ps) < 0)
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{
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if (errno == ESRCH) continue;
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return err(errno);
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}
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struct tm tm;
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gmtime_r(&ps.ps_time.tv_sec, &tm);
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char timebuf[256];
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strftime(timebuf, sizeof(timebuf), "%H:%M:%S", &tm);
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const char* user = "???";
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passwd* pw = getpwuid(ps.ps_uid);
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if (pw) user = pw->pw_name;
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os::println("%-8s %6d %6d %10s %s", user, ps.ps_pid, ps.ps_ppid, timebuf, ps.ps_name);
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}
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endpwent();
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return 0;
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}
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