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Diffstat (limited to 'toys/posix/ps.c')
-rw-r--r--toys/posix/ps.c94
1 files changed, 57 insertions, 37 deletions
diff --git a/toys/posix/ps.c b/toys/posix/ps.c
index c95f73f5..f99a2168 100644
--- a/toys/posix/ps.c
+++ b/toys/posix/ps.c
@@ -41,13 +41,14 @@
* TODO: iotop: Window size change: respond immediately. Why not padding
* at right edge? (Not adjusting to screen size at all? Header wraps?)
* TODO: top: thread support and SMP
+ * TODO: pgrep -f only searches the amount of cmdline that fits in toybuf.
USE_PS(NEWTOY(ps, "k(sort)*P(ppid)*aAdeflMno*O*p(pid)*s*t*u*U*g*G*wZ[!ol][+Ae]", TOYFLAG_USR|TOYFLAG_BIN|TOYFLAG_LOCALE))
// stayroot because iotop needs root to read other process' proc/$$/io
USE_TOP(NEWTOY(top, ">0m" "k*o*p*u*s#<1=9d#=3<1n#<1bq", TOYFLAG_USR|TOYFLAG_BIN|TOYFLAG_LOCALE))
USE_IOTOP(NEWTOY(iotop, ">0AaKO" "k*o*p*u*s#<1=7d#=3<1n#<1bq", TOYFLAG_USR|TOYFLAG_BIN|TOYFLAG_STAYROOT|TOYFLAG_LOCALE))
-USE_PGREP(NEWTOY(pgrep, "?cld:u*U*t*s*P*g*G*fnovxL:", TOYFLAG_USR|TOYFLAG_BIN))
-USE_PKILL(NEWTOY(pkill, "Vu*U*t*s*P*g*G*fnovxl:", TOYFLAG_USR|TOYFLAG_BIN))
+USE_PGREP(NEWTOY(pgrep, "?cld:u*U*t*s*P*g*G*fnovxL:[-no]", TOYFLAG_USR|TOYFLAG_BIN))
+USE_PKILL(NEWTOY(pkill, "Vu*U*t*s*P*g*G*fnovxl:[-no]", TOYFLAG_USR|TOYFLAG_BIN))
config PS
bool "ps"
@@ -232,8 +233,6 @@ GLOBALS(
struct arg_list *p;
struct arg_list *o;
struct arg_list *k;
-
- long long milistart;
} top;
struct{
char *L;
@@ -246,9 +245,9 @@ GLOBALS(
struct arg_list *u;
char *d;
- void *regexes;
+ void *regexes, *snapshot;
int signal;
- pid_t self;
+ pid_t self, match;
} pgrep;
};
@@ -257,7 +256,7 @@ GLOBALS(
unsigned width, height;
dev_t tty;
void *fields, *kfields;
- long long ticks, bits;
+ long long ticks, bits, time;
int kcount, forcek, sortpos;
int (*match_process)(long long *slot);
void (*show_process)(void *tb);
@@ -542,6 +541,7 @@ static void show_ps(struct carveup *tb)
else width -= printf("%*.*s", pad, len, out);
if (!width) break;
}
+ xputc(TT.time ? '\r' : '\n');
}
// dirtree callback: read data about process to display, store, or discard it.
@@ -756,7 +756,6 @@ static int get_ps(struct dirtree *new)
TT.kcount++;
if (TT.show_process) {
TT.show_process(tb);
- xputc('\n');
return 0;
}
@@ -1057,7 +1056,7 @@ void ps_main(void)
// Calculate seen fields bit array, and if we aren't deferring printing
// print headers now (for low memory/nommu systems).
TT.bits = get_headers(TT.fields, toybuf, sizeof(toybuf));
- if (!(toys.optflags&FLAG_M)) printf("%s\n", toybuf);
+ if (!(toys.optflags&FLAG_M)) printf("%.*s\n", TT.width, toybuf);
if (!(toys.optflags&(FLAG_k|FLAG_M))) TT.show_process = (void *)show_ps;
TT.match_process = ps_match_process;
dt = dirtree_read("/proc", get_ps);
@@ -1078,7 +1077,7 @@ void ps_main(void)
// Now that we've recalculated field widths, re-pad headers again
get_headers(TT.fields, toybuf, sizeof(toybuf));
- printf("%s\n", toybuf);
+ printf("%.*s\n", TT.width, toybuf);
}
if (toys.optflags&FLAG_k)
@@ -1086,7 +1085,6 @@ void ps_main(void)
for (i = 0; i<TT.kcount; i++) {
show_ps(tbsort[i]);
free(tbsort[i]);
- xputc('\n');
}
if (CFG_TOYBOX_FREE) free(tbsort);
}
@@ -1177,6 +1175,7 @@ static void top_common(
unsigned tock = 0;
int i, lines, topoff = 0, done = 0;
+ toys.signal = SIGWINCH;
TT.bits = get_headers(TT.fields, toybuf, sizeof(toybuf));
*scratch = 0;
memset(plist, 0, sizeof(plist));
@@ -1244,8 +1243,14 @@ static void top_common(
if (recalc) {
qsort(mix.tb, mix.count, sizeof(struct carveup *), (void *)ksort);
+ if (!(toys.optflags&FLAG_b)) {
+ printf("\033[H\033[J");
+ if (toys.signal) {
+ toys.signal = 0;
+ terminal_probesize(&TT.width, &TT.height);
+ }
+ }
lines = TT.height;
- if (!(toys.optflags&FLAG_b)) printf("\033[H\033[J");
}
if (recalc && !(toys.optflags&FLAG_q)) {
if (*toys.which->name == 't') {
@@ -1332,15 +1337,12 @@ static void top_common(
}
*pos = 0;
lines = header_line(lines, 1);
-
- if (!(toys.optflags&FLAG_b))
- terminal_probesize(&TT.width, &TT.height);
}
if (!recalc) printf("\033[%dH\033[J", 1+TT.height-lines);
recalc = 1;
for (i = 0; i<lines && i+topoff<mix.count; i++) {
- if (i) xprintf("\r\n");
+ if (i) xputc('\n');
show_ps(mix.tb[i+topoff]);
}
@@ -1399,11 +1401,14 @@ static void top_setup(char *defo, char *defk)
{
int len;
+ TT.time = militime();
TT.top.d *= 1000;
if (toys.optflags&FLAG_b) TT.width = TT.height = 99999;
else {
xset_terminal(0, 1, 0);
sigatexit(tty_sigreset);
+ xsignal(SIGWINCH, generic_signal);
+ printf("\033[?25l\033[0m");
}
shared_main();
@@ -1440,7 +1445,7 @@ void top_main(void)
static int iotop_filter(long long *oslot, long long *nslot, int milis)
{
if (!(toys.optflags&FLAG_a)) merge_deltas(oslot, nslot, milis);
- else oslot[SLOT_upticks] = ((militime()-TT.top.milistart)*TT.ticks)/1000;
+ else oslot[SLOT_upticks] = ((militime()-TT.time)*TT.ticks)/1000;
return !(toys.optflags&FLAG_o)||oslot[SLOT_iobytes+!(toys.optflags&FLAG_A)];
}
@@ -1451,7 +1456,6 @@ void iotop_main(void)
if (toys.optflags&FLAG_K) TT.forcek++;
- TT.top.milistart = militime();
top_setup(s1 = xmprintf("PID,PR,USER,%sREAD,%sWRITE,SWAP,%sIO,COMM",d,d,d),
s2 = xmprintf("-%sIO,-ETIME,-PID",d));
free(s1);
@@ -1472,17 +1476,34 @@ struct regex_list {
regex_t reg;
};
-static void show_pgrep(struct carveup *tb)
+static void do_pgk(struct carveup *tb)
+{
+ if (TT.pgrep.signal) {
+ if (kill(*tb->slot, TT.pgrep.signal)) {
+ char *s = num_to_sig(TT.pgrep.signal);
+
+ if (!s) sprintf(s = toybuf, "%d", TT.pgrep.signal);
+ perror_msg("%s->%lld", s, *tb->slot);
+ }
+ }
+ if (!(toys.optflags&FLAG_c) && (!TT.pgrep.signal || TT.tty)) {
+ printf("%lld", *tb->slot);
+ if (toys.optflags&FLAG_l)
+ printf(" %s", tb->str+tb->offset[4]*!!(toys.optflags&FLAG_f));
+
+ printf("%s", TT.pgrep.d ? TT.pgrep.d : "\n");
+ }
+}
+
+static void match_pgrep(struct carveup *tb)
{
regmatch_t match;
struct regex_list *reg;
- char *name = tb->str;
+ char *name = tb->str+tb->offset[4]*!!(toys.optflags&FLAG_f);;
// Never match ourselves.
if (TT.pgrep.self == *tb->slot) return;
- if (toys.optflags&FLAG_f) name += tb->offset[4];
-
if (TT.pgrep.regexes) {
for (reg = TT.pgrep.regexes; reg; reg = reg->next) {
if (regexec(&reg->reg, name, 1, &match, 0)) continue;
@@ -1495,20 +1516,15 @@ static void show_pgrep(struct carveup *tb)
// Repurpose a field for -c count
TT.sortpos++;
- if (TT.pgrep.signal) {
- if (kill(*tb->slot, TT.pgrep.signal)) {
- char *s = num_to_sig(TT.pgrep.signal);
-
- if (!s) sprintf(s = toybuf, "%d", TT.pgrep.signal);
- perror_msg("%s->%lld", s, *tb->slot);
- }
- }
- if (!(toys.optflags&FLAG_c) && (!TT.pgrep.signal || TT.tty)) {
- printf("%lld", *tb->slot);
- if (toys.optflags&FLAG_l) printf(" %s", name);
-
- printf("%s", TT.pgrep.d ? TT.pgrep.d : "\n");
- }
+ if (toys.optflags&(FLAG_n|FLAG_o)) {
+ long long ll = tb->slot[SLOT_starttime];
+
+ if (toys.optflags&FLAG_o) ll *= -1;
+ if (TT.time && TT.time>ll) return;
+ TT.time = ll;
+ free(TT.pgrep.snapshot);
+ TT.pgrep.snapshot = xmemdup(toybuf, (name+strlen(name)+1)-toybuf);
+ } else do_pgk(tb);
}
static int pgrep_match_process(long long *slot)
@@ -1549,10 +1565,14 @@ void pgrep_main(void)
TT.pgrep.regexes = reg;
}
TT.match_process = pgrep_match_process;
- TT.show_process = (void *)show_pgrep;
+ TT.show_process = (void *)match_pgrep;
dirtree_read("/proc", get_ps);
if (toys.optflags&FLAG_c) printf("%d\n", TT.sortpos);
+ if (TT.pgrep.snapshot) {
+ do_pgk(TT.pgrep.snapshot);
+ if (CFG_TOYBOX_FREE) free(TT.pgrep.snapshot);
+ }
if (TT.pgrep.d) xputc('\n');
}
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