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-rw-r--r--toys/posix/ps.c27
1 files changed, 17 insertions, 10 deletions
diff --git a/toys/posix/ps.c b/toys/posix/ps.c
index 301c1f36..fa8f487f 100644
--- a/toys/posix/ps.c
+++ b/toys/posix/ps.c
@@ -89,17 +89,20 @@ config PS
-O Add FIELDS to defaults
-Z Include LABEL
- Available -o FIELDs:
+ Command line -o fields:
- ADDR Instruction pointer ARGS Command line (argv[] -path)
- BIT Is this process 32 or 64 bits
- CMD COMM, or ARGS with -f CMDLINE Command line (argv[])
- COMM Original command name COMMAND Original command path
+ ARGS Command line (argv[] -path) CMD COMM, or ARGS with -f
+ CMDLINE Command line (argv[]) COMM Original command name (stat[2])
+ COMMAND Command name (argv[0]) NAME Command name (argv[0] -path)
+
+ Process attribute -o FIELDs:
+
+ ADDR Instruction pointer BIT Is this process 32 or 64 bits
CPU Which processor running on ETIME Elapsed time since PID start
F Flags (1=FORKNOEXEC 4=SUPERPRIV) GID Group id
GROUP Group name LABEL Security label
MAJFL Major page faults MINFL Minor page faults
- NAME Command name (argv[0]) NI Niceness (lower is faster)
+ NI Niceness (lower is faster)
PCPU Percentage of CPU time used PCY Android scheduling policy
PGID Process Group ID
PID Process ID PPID Parent Process ID
@@ -120,7 +123,7 @@ config PS
TIME CPU time consumed TTY Controlling terminal
UID User id USER User name
VSZ Virtual memory size (1k units) %VSZ VSZ as % of physical memory
- WCHAN Waiting in kernel for
+ WCHAN What are we waiting in kernel for
config TOP
bool "top"
@@ -244,7 +247,7 @@ GLOBALS(
struct arg_list *k;
struct arg_list *O;
} top;
- struct{
+ struct {
char *L;
struct arg_list *G;
struct arg_list *g;
@@ -434,10 +437,12 @@ static char *string_field(struct carveup *tb, struct strawberry *field)
// String fields
} else if (sl < 0) {
+ // If there's data after argv[0], insert null or space as appropriate
if (slot[SLOT_argv0len])
tb->str[tb->offset[4]+slot[SLOT_argv0len]] = (which==PS_NAME) ? 0 : ' ';
out = tb->str;
sl *= -1;
+ // First string slot has offset 0, others are offset[-slot-2]
if (--sl) out += tb->offset[--sl];
if (which==PS_ARGS)
for (s = out; *s && *s != ' '; s++) if (*s == '/') out = s+1;
@@ -1299,7 +1304,7 @@ static void top_common(
while (old.count || new.count) {
struct carveup *otb = *old.tb, *ntb = *new.tb;
- // If we just have old, discard it.
+ // If we just have old for this process, it exited. Discard it.
if (old.count && (!new.count || *otb->slot < *ntb->slot)) {
old.tb++;
old.count--;
@@ -1322,7 +1327,7 @@ static void top_common(
new.count--;
}
- // We will re-fetch no data before its time. - Mork calling Orson Welles
+ // Don't re-fetch data if it's not time yet, just re-display existing data.
for (;;) {
char was, is;
@@ -1338,12 +1343,14 @@ static void top_common(
lines = TT.height;
}
if (recalc && !(toys.optflags&FLAG_q)) {
+ // Display "top" header.
if (*toys.which->name == 't') {
struct strawberry alluc;
long long ll, up = 0;
long run[6];
int j;
+ // Count running, sleeping, stopped, zombie processes.
alluc.which = PS_S;
memset(run, 0, sizeof(run));
for (i = 0; i<mix.count; i++)