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top: to prepare for collapse, move forest view support

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In anticipation of a new collapsible child feature, we
will have to make some forest view variables available
to that 'keys_task()' function. This commit just moves
the forest view logic ahead of tertiary input support.

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner 2018-06-19 00:00:00 -05:00 committed by Craig Small
parent 06d4d985a6
commit 57f0ff367c
2 changed files with 99 additions and 99 deletions
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184
top/top.c
View File

@ -4679,6 +4679,98 @@ static void wins_stage_2 (void) {
#endif
} // end: wins_stage_2
/*###### Forest View support ###########################################*/
/*
* We try to keep most existing code unaware of our activities
* ( plus, maintain alphabetical order with carefully chosen )
* ( function names: forest_a, forest_b, forest_c & forest_d )
* ( each with exactly one letter more than its predecessor! ) */
static proc_t **Seed_ppt; // temporary win ppt pointer
static proc_t **Tree_ppt; // forest_create will resize
static int Tree_idx; // frame_make resets to zero
/*
* This little recursive guy is the real forest view workhorse.
* He fills in the Tree_ppt array and also sets the child indent
* level which is stored in an unused proc_t padding byte. */
static void forest_adds (const int self, int level) {
int i;
if (Tree_idx < Frame_maxtask) { // immunize against insanity
if (level > 100) level = 101; // our arbitrary nests limit
Tree_ppt[Tree_idx] = Seed_ppt[self]; // add this as root or child
Tree_ppt[Tree_idx++]->pad_3 = level; // borrow 1 byte, 127 levels
#ifdef TREE_SCANALL
for (i = 0; i < Frame_maxtask; i++) {
if (i == self) continue;
#else
for (i = self + 1; i < Frame_maxtask; i++) {
#endif
if (Seed_ppt[self]->tid == Seed_ppt[i]->tgid
|| (Seed_ppt[self]->tid == Seed_ppt[i]->ppid && Seed_ppt[i]->tid == Seed_ppt[i]->tgid))
forest_adds(i, level + 1); // got one child any others?
}
}
} // end: forest_adds
#ifndef TREE_SCANALL
/*
* Our qsort callback to order a ppt by the non-display start_time
* which will make us immune from any pid, ppid or tgid anomalies
* if/when pid values are wrapped by the kernel! */
static int forest_based (const proc_t **x, const proc_t **y) {
if ( (*x)->start_time > (*y)->start_time ) return 1;
if ( (*x)->start_time < (*y)->start_time ) return -1;
return 0;
} // end: forest_based
#endif
/*
* This routine is responsible for preparing the proc_t's for
* a forest display in the designated window. Upon completion,
* he'll replace the original window ppt with our specially
* ordered forest version. */
static void forest_create (WIN_t *q) {
static int hwmsav;
int i;
Seed_ppt = q->ppt; // avoid passing WIN_t ptrs
if (!Tree_idx) { // do just once per frame
if (hwmsav < Frame_maxtask) { // grow, but never shrink
hwmsav = Frame_maxtask;
Tree_ppt = alloc_r(Tree_ppt, sizeof(proc_t*) * hwmsav);
}
#ifndef TREE_SCANALL
qsort(Seed_ppt, Frame_maxtask, sizeof(proc_t*), (QFP_t)forest_based);
#endif
for (i = 0; i < Frame_maxtask; i++) // avoid any hidepid distortions
if (!Seed_ppt[i]->pad_3) // identify real or pretend trees
forest_adds(i, 0); // add as parent plus its children
}
memcpy(Seed_ppt, Tree_ppt, sizeof(proc_t*) * Frame_maxtask);
} // end: forest_create
/*
* This guy adds the artwork to either p->cmd or p->cmdline
* when in forest view mode, otherwise he just returns 'em. */
static inline const char *forest_display (const WIN_t *q, const proc_t *p) {
#ifndef SCROLLVAR_NO
static char buf[1024*64*2]; // the same as readproc's MAX_BUFSZ
#else
static char buf[ROWMINSIZ];
#endif
const char *which = (CHKw(q, Show_CMDLIN)) ? *p->cmdline : p->cmd;
if (!CHKw(q, Show_FOREST) || !p->pad_3) return which;
if (p->pad_3 > 100) snprintf(buf, sizeof(buf), "%400s%s", " + ", which);
else snprintf(buf, sizeof(buf), "%*s%s", (4 * p->pad_3), " `- ", which);
return buf;
} // end: forest_display
/*###### Interactive Input Tertiary support ############################*/
/*
@ -5433,98 +5525,6 @@ static void keys_xtra (int ch) {
// show_msg(fmtmk("%s sort compatibility key honored", xmsg));
} // end: keys_xtra
/*###### Forest View support ###########################################*/
/*
* We try to keep most existing code unaware of our activities
* ( plus, maintain alphabetical order with carefully chosen )
* ( function names: forest_a, forest_b, forest_c & forest_d )
* ( each with exactly one letter more than its predecessor! ) */
static proc_t **Seed_ppt; // temporary win ppt pointer
static proc_t **Tree_ppt; // forest_create will resize
static int Tree_idx; // frame_make resets to zero
/*
* This little recursive guy is the real forest view workhorse.
* He fills in the Tree_ppt array and also sets the child indent
* level which is stored in an unused proc_t padding byte. */
static void forest_adds (const int self, int level) {
int i;
if (Tree_idx < Frame_maxtask) { // immunize against insanity
if (level > 100) level = 101; // our arbitrary nests limit
Tree_ppt[Tree_idx] = Seed_ppt[self]; // add this as root or child
Tree_ppt[Tree_idx++]->pad_3 = level; // borrow 1 byte, 127 levels
#ifdef TREE_SCANALL
for (i = 0; i < Frame_maxtask; i++) {
if (i == self) continue;
#else
for (i = self + 1; i < Frame_maxtask; i++) {
#endif
if (Seed_ppt[self]->tid == Seed_ppt[i]->tgid
|| (Seed_ppt[self]->tid == Seed_ppt[i]->ppid && Seed_ppt[i]->tid == Seed_ppt[i]->tgid))
forest_adds(i, level + 1); // got one child any others?
}
}
} // end: forest_adds
#ifndef TREE_SCANALL
/*
* Our qsort callback to order a ppt by the non-display start_time
* which will make us immune from any pid, ppid or tgid anomalies
* if/when pid values are wrapped by the kernel! */
static int forest_based (const proc_t **x, const proc_t **y) {
if ( (*x)->start_time > (*y)->start_time ) return 1;
if ( (*x)->start_time < (*y)->start_time ) return -1;
return 0;
} // end: forest_based
#endif
/*
* This routine is responsible for preparing the proc_t's for
* a forest display in the designated window. Upon completion,
* he'll replace the original window ppt with our specially
* ordered forest version. */
static void forest_create (WIN_t *q) {
static int hwmsav;
int i;
Seed_ppt = q->ppt; // avoid passing WIN_t ptrs
if (!Tree_idx) { // do just once per frame
if (hwmsav < Frame_maxtask) { // grow, but never shrink
hwmsav = Frame_maxtask;
Tree_ppt = alloc_r(Tree_ppt, sizeof(proc_t*) * hwmsav);
}
#ifndef TREE_SCANALL
qsort(Seed_ppt, Frame_maxtask, sizeof(proc_t*), (QFP_t)forest_based);
#endif
for (i = 0; i < Frame_maxtask; i++) // avoid any hidepid distortions
if (!Seed_ppt[i]->pad_3) // identify real or pretend trees
forest_adds(i, 0); // add as parent plus its children
}
memcpy(Seed_ppt, Tree_ppt, sizeof(proc_t*) * Frame_maxtask);
} // end: forest_create
/*
* This guy adds the artwork to either p->cmd or p->cmdline
* when in forest view mode, otherwise he just returns 'em. */
static inline const char *forest_display (const WIN_t *q, const proc_t *p) {
#ifndef SCROLLVAR_NO
static char buf[1024*64*2]; // the same as readproc's MAX_BUFSZ
#else
static char buf[ROWMINSIZ];
#endif
const char *which = (CHKw(q, Show_CMDLIN)) ? *p->cmdline : p->cmd;
if (!CHKw(q, Show_FOREST) || !p->pad_3) return which;
if (p->pad_3 > 100) snprintf(buf, sizeof(buf), "%400s%s", " + ", which);
else snprintf(buf, sizeof(buf), "%*s%s", (4 * p->pad_3), " `- ", which);
return buf;
} // end: forest_display
/*###### Main Screen routines ##########################################*/
/*

14
top/top.h
View File

@ -779,6 +779,13 @@ typedef struct WIN_t {
//atic void wins_reflag (int what, int flg);
//atic void wins_stage_1 (void);
//atic void wins_stage_2 (void);
/*------ Forest View support -------------------------------------------*/
//atic void forest_adds (const int self, int level);
#ifndef TREE_SCANALL
//atic int forest_based (const proc_t **x, const proc_t **y);
#endif
//atic void forest_create (WIN_t *q);
//atic inline const char *forest_display (const WIN_t *q, const proc_t *p);
/*------ Interactive Input Tertiary support ----------------------------*/
//atic inline int find_ofs (const WIN_t *q, const char *buf);
//atic void find_string (int ch);
@ -791,13 +798,6 @@ typedef struct WIN_t {
//atic void keys_task (int ch);
//atic void keys_window (int ch);
//atic void keys_xtra (int ch);
/*------ Forest View support -------------------------------------------*/
//atic void forest_adds (const int self, int level);
#ifndef TREE_SCANALL
//atic int forest_based (const proc_t **x, const proc_t **y);
#endif
//atic void forest_create (WIN_t *q);
//atic inline const char *forest_display (const WIN_t *q, const proc_t *p);
/*------ Main Screen routines ------------------------------------------*/
//atic void do_key (int ch);
//atic void summary_hlp (CPU_t *cpu, const char *pfx);