[linux-2.6-block.git] / tools / perf / util / newt.c

#define _GNU_SOURCE
#include <stdio.h>
#undef _GNU_SOURCE

#include <stdlib.h>
#include <newt.h>
#include <sys/ttydefaults.h>

#include "cache.h"
#include "hist.h"
#include "session.h"
#include "sort.h"
#include "symbol.h"

static void newt_form__set_exit_keys(newtComponent self)
{
	newtFormAddHotKey(self, NEWT_KEY_ESCAPE);
	newtFormAddHotKey(self, 'Q');
	newtFormAddHotKey(self, 'q');
	newtFormAddHotKey(self, CTRL('c'));
}

static newtComponent newt_form__new(void)
{
	newtComponent self = newtForm(NULL, NULL, 0);
	if (self)
		newt_form__set_exit_keys(self);
	return self;
}

static int popup_menu(int argc, const char *argv[])
{
	struct newtExitStruct es;
	int i, rc = -1, max_len = 5;
	newtComponent listbox, form = newt_form__new();

	if (form == NULL)
		return -1;

	listbox = newtListbox(0, 0, argc, NEWT_FLAG_RETURNEXIT);
	if (listbox == NULL)
		goto out_destroy_form;

	newtFormAddComponents(form, listbox, NULL);

	for (i = 0; i < argc; ++i) {
		int len = strlen(argv[i]);
		if (len > max_len)
			max_len = len;
		if (newtListboxAddEntry(listbox, argv[i], (void *)(long)i))
			goto out_destroy_form;
	}

	newtCenteredWindow(max_len, argc, NULL);
	newtFormRun(form, &es);
	rc = newtListboxGetCurrent(listbox) - NULL;
	if (es.reason == NEWT_EXIT_HOTKEY)
		rc = -1;
	newtPopWindow();
out_destroy_form:
	newtFormDestroy(form);
	return rc;
}

static bool dialog_yesno(const char *msg)
{
	/* newtWinChoice should really be accepting const char pointers... */
	char yes[] = "Yes", no[] = "No";
	return newtWinChoice(NULL, no, yes, (char *)msg) == 2;
}

/*
 * When debugging newt problems it was useful to be able to "unroll"
 * the calls to newtCheckBoxTreeAdd{Array,Item}, so that we can generate
 * a source file with the sequence of calls to these methods, to then
 * tweak the arrays to get the intended results, so I'm keeping this code
 * here, may be useful again in the future.
 */
#undef NEWT_DEBUG

static void newt_checkbox_tree__add(newtComponent tree, const char *str,
				    void *priv, int *indexes)
{
#ifdef NEWT_DEBUG
	/* Print the newtCheckboxTreeAddArray to tinker with its index arrays */
	int i = 0, len = 40 - strlen(str);

	fprintf(stderr,
		"\tnewtCheckboxTreeAddItem(tree, %*.*s\"%s\", (void *)%p, 0, ",
		len, len, " ", str, priv);
	while (indexes[i] != NEWT_ARG_LAST) {
		if (indexes[i] != NEWT_ARG_APPEND)
			fprintf(stderr, " %d,", indexes[i]);
		else
			fprintf(stderr, " %s,", "NEWT_ARG_APPEND");
		++i;
	}
	fprintf(stderr, " %s", " NEWT_ARG_LAST);\n");
	fflush(stderr);
#endif
	newtCheckboxTreeAddArray(tree, str, priv, 0, indexes);
}

static char *callchain_list__sym_name(struct callchain_list *self,
				      char *bf, size_t bfsize)
{
	if (self->ms.sym)
		return self->ms.sym->name;

	snprintf(bf, bfsize, "%#Lx", self->ip);
	return bf;
}

static void __callchain__append_graph_browser(struct callchain_node *self,
					      newtComponent tree, u64 total,
					      int *indexes, int depth)
{
	struct rb_node *node;
	u64 new_total, remaining;
	int idx = 0;

	if (callchain_param.mode == CHAIN_GRAPH_REL)
		new_total = self->children_hit;
	else
		new_total = total;

	remaining = new_total;
	node = rb_first(&self->rb_root);
	while (node) {
		struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
		struct rb_node *next = rb_next(node);
		u64 cumul = cumul_hits(child);
		struct callchain_list *chain;
		int first = true, printed = 0;
		int chain_idx = -1;
		remaining -= cumul;

		indexes[depth] = NEWT_ARG_APPEND;
		indexes[depth + 1] = NEWT_ARG_LAST;

		list_for_each_entry(chain, &child->val, list) {
			char ipstr[BITS_PER_LONG / 4 + 1],
			     *alloc_str = NULL;
			const char *str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));

			if (first) {
				double percent = cumul * 100.0 / new_total;

				first = false;
				if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
					str = "Not enough memory!";
				else
					str = alloc_str;
			} else {
				indexes[depth] = idx;
				indexes[depth + 1] = NEWT_ARG_APPEND;
				indexes[depth + 2] = NEWT_ARG_LAST;
				++chain_idx;
			}
			newt_checkbox_tree__add(tree, str, chain->ms.sym, indexes);
			free(alloc_str);
			++printed;
		}

		indexes[depth] = idx;
		if (chain_idx != -1)
			indexes[depth + 1] = chain_idx;
		if (printed != 0)
			++idx;
		__callchain__append_graph_browser(child, tree, new_total, indexes,
						  depth + (chain_idx != -1 ? 2 : 1));
		node = next;
	}
}

static void callchain__append_graph_browser(struct callchain_node *self,
					    newtComponent tree, u64 total,
					    int *indexes, int parent_idx)
{
	struct callchain_list *chain;
	int i = 0;

	indexes[1] = NEWT_ARG_APPEND;
	indexes[2] = NEWT_ARG_LAST;

	list_for_each_entry(chain, &self->val, list) {
		char ipstr[BITS_PER_LONG / 4 + 1], *str;

		if (chain->ip >= PERF_CONTEXT_MAX)
			continue;

		if (!i++ && sort__first_dimension == SORT_SYM)
			continue;

		str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
		newt_checkbox_tree__add(tree, str, chain->ms.sym, indexes);
	}

	indexes[1] = parent_idx;
	indexes[2] = NEWT_ARG_APPEND;
	indexes[3] = NEWT_ARG_LAST;
	__callchain__append_graph_browser(self, tree, total, indexes, 2);
}

static void hist_entry__append_callchain_browser(struct hist_entry *self,
						 newtComponent tree, u64 total, int parent_idx)
{
	struct rb_node *rb_node;
	int indexes[1024] = { [0] = parent_idx, };
	int idx = 0;
	struct callchain_node *chain;

	rb_node = rb_first(&self->sorted_chain);
	while (rb_node) {
		chain = rb_entry(rb_node, struct callchain_node, rb_node);
		switch (callchain_param.mode) {
		case CHAIN_FLAT:
			break;
		case CHAIN_GRAPH_ABS: /* falldown */
		case CHAIN_GRAPH_REL:
			callchain__append_graph_browser(chain, tree, total, indexes, idx++);
			break;
		case CHAIN_NONE:
		default:
			break;
		}
		rb_node = rb_next(rb_node);
	}
}

/*
 * FIXME: get lib/string.c linked with perf somehow
 */
static char *skip_spaces(const char *str)
{
	while (isspace(*str))
		++str;
	return (char *)str;
}

static char *strim(char *s)
{
	size_t size;
	char *end;

	s = skip_spaces(s);
	size = strlen(s);
	if (!size)
		return s;

	end = s + size - 1;
	while (end >= s && isspace(*end))
		end--;
	*(end + 1) = '\0';

	return s;
}

static size_t hist_entry__append_browser(struct hist_entry *self,
					 newtComponent tree, u64 total)
{
	char bf[1024], *s;
	FILE *fp;

	if (symbol_conf.exclude_other && !self->parent)
		return 0;

	fp = fmemopen(bf, sizeof(bf), "w");
	if (fp == NULL)
		return 0;

	hist_entry__fprintf(self, NULL, false, 0, fp, total);
	fclose(fp);

	/*
	 * FIXME: We shouldn't need to trim, as the printing routines shouldn't
	 * add spaces it in the first place, the stdio output routines should
	 * call a __snprintf method instead of the current __print (that
	 * actually is a __fprintf) one, but get the raw string and _then_ add
	 * the newline, as this is a detail of stdio printing, not needed in
	 * other UIs, e.g. newt.
	 */
	s = strim(bf);

	if (symbol_conf.use_callchain) {
		int indexes[2];

		indexes[0] = NEWT_ARG_APPEND;
		indexes[1] = NEWT_ARG_LAST;
		newt_checkbox_tree__add(tree, s, self->ms.sym, indexes);
	} else
		newtListboxAppendEntry(tree, s, self->ms.sym);

	return strlen(s);
}

static void symbol__annotate_browser(const struct symbol *self)
{
	FILE *fp;
	int cols, rows;
	newtComponent form, tree;
	struct newtExitStruct es;
	char *str;
	size_t line_len, max_line_len = 0;
	size_t max_usable_width;
	char *line = NULL;

	if (self == NULL)
		return;

	if (asprintf(&str, "perf annotate %s 2>&1 | expand", self->name) < 0)
		return;

	fp = popen(str, "r");
	if (fp == NULL)
		goto out_free_str;

	newtPushHelpLine("Press ESC to exit");
	newtGetScreenSize(&cols, &rows);
	tree = newtListbox(0, 0, rows - 5, NEWT_FLAG_SCROLL);

	while (!feof(fp)) {
		if (getline(&line, &line_len, fp) < 0 || !line_len)
			break;
		while (line_len != 0 && isspace(line[line_len - 1]))
			line[--line_len] = '\0';

		if (line_len > max_line_len)
			max_line_len = line_len;
		newtListboxAppendEntry(tree, line, NULL);
	}
	fclose(fp);
	free(line);

	max_usable_width = cols - 22;
	if (max_line_len > max_usable_width)
		max_line_len = max_usable_width;

	newtListboxSetWidth(tree, max_line_len);

	newtCenteredWindow(max_line_len + 2, rows - 5, self->name);
	form = newt_form__new();
	newtFormAddComponents(form, tree, NULL);

	newtFormRun(form, &es);
	newtFormDestroy(form);
	newtPopWindow();
	newtPopHelpLine();
out_free_str:
	free(str);
}

static const void *newt__symbol_tree_get_current(newtComponent self)
{
	if (symbol_conf.use_callchain)
		return newtCheckboxTreeGetCurrent(self);
	return newtListboxGetCurrent(self);
}

static void perf_session__selection(newtComponent self, void *data)
{
	const struct symbol **symbol_ptr = data;
	*symbol_ptr = newt__symbol_tree_get_current(self);
}

void perf_session__browse_hists(struct rb_root *hists, u64 session_total,
				const char *helpline)
{
	struct sort_entry *se;
	struct rb_node *nd;
	char seq[] = ".";
	unsigned int width;
	char *col_width = symbol_conf.col_width_list_str;
	int rows, cols, idx;
	int max_len = 0;
	char str[1024];
	newtComponent form, tree;
	struct newtExitStruct es;
	const struct symbol *selection;

	snprintf(str, sizeof(str), "Samples: %Ld", session_total);
	newtDrawRootText(0, 0, str);
	newtPushHelpLine(helpline);

	newtGetScreenSize(&cols, &rows);

	if (symbol_conf.use_callchain)
		tree = newtCheckboxTreeMulti(0, 0, rows - 5, seq,
						NEWT_FLAG_SCROLL);
	else
		tree = newtListbox(0, 0, rows - 5, (NEWT_FLAG_SCROLL |
						       NEWT_FLAG_RETURNEXIT));

	newtComponentAddCallback(tree, perf_session__selection, &selection);

	list_for_each_entry(se, &hist_entry__sort_list, list) {
		if (se->elide)
			continue;
		width = strlen(se->header);
		if (se->width) {
			if (symbol_conf.col_width_list_str) {
				if (col_width) {
					*se->width = atoi(col_width);
					col_width = strchr(col_width, ',');
					if (col_width)
						++col_width;
				}
			}
			*se->width = max(*se->width, width);
		}
	}

	idx = 0;
	for (nd = rb_first(hists); nd; nd = rb_next(nd)) {
		struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
		int len = hist_entry__append_browser(h, tree, session_total);
		if (len > max_len)
			max_len = len;
		if (symbol_conf.use_callchain) {
			hist_entry__append_callchain_browser(h, tree, session_total, idx++);
			if (idx > 3300)
				break;
		}
	}

	if (max_len > cols)
		max_len = cols - 3;

	if (!symbol_conf.use_callchain)
		newtListboxSetWidth(tree, max_len);

	newtCenteredWindow(max_len + (symbol_conf.use_callchain ? 5 : 0),
			   rows - 5, "Report");
	form = newt_form__new();
	newtFormAddHotKey(form, 'A');
	newtFormAddHotKey(form, 'a');
	newtFormAddHotKey(form, NEWT_KEY_RIGHT);
	newtFormAddComponents(form, tree, NULL);
	selection = newt__symbol_tree_get_current(tree);

	while (1) {
		char annotate[512];
		const char *options[2];
		int nr_options = 0, choice;

		newtFormRun(form, &es);
		if (es.reason == NEWT_EXIT_HOTKEY) {
			if (toupper(es.u.key) == 'A') {
				symbol__annotate_browser(selection);
				continue;
			}
			if (es.u.key == NEWT_KEY_ESCAPE ||
			    toupper(es.u.key) == 'Q' ||
			    es.u.key == CTRL('c')) {
				if (dialog_yesno("Do you really want to exit?"))
					break;
				else
					continue;
			}
		}

		if (selection != NULL) {
			snprintf(annotate, sizeof(annotate),
				 "Annotate %s", selection->name);
			options[nr_options++] = annotate;
		}

		options[nr_options++] = "Exit";
		choice = popup_menu(nr_options, options);
		if (choice == nr_options - 1)
			break;
		else if (selection != NULL && choice >= 0)
			symbol__annotate_browser(selection);
	}

	newtFormDestroy(form);
	newtPopWindow();
}

static char browser__last_msg[1024];

int browser__show_help(const char *format, va_list ap)
{
	int ret;
	static int backlog;

        ret = vsnprintf(browser__last_msg + backlog,
			sizeof(browser__last_msg) - backlog, format, ap);
	backlog += ret;

	if (browser__last_msg[backlog - 1] == '\n') {
		newtPopHelpLine();
		newtPushHelpLine(browser__last_msg);
		newtRefresh();
		backlog = 0;
	}

	return ret;
}

void setup_browser(void)
{
	if (!isatty(1))
		return;

	use_browser = true;
	newtInit();
	newtCls();
	newtPushHelpLine(" ");
}

void exit_browser(bool wait_for_ok)
{
	if (use_browser) {
		if (wait_for_ok) {
			char title[] = "Fatal Error", ok[] = "Ok";
			newtWinMessage(title, ok, browser__last_msg);
		}
		newtFinished();
	}
}
Commit	Line	Data
f9224c5c ACM	1	#define _GNU_SOURCE
	2	#include <stdio.h>
	3	#undef _GNU_SOURCE
	4
	5	#include <stdlib.h>
	6	#include <newt.h>
7081e087	7	#include <sys/ttydefaults.h>
f9224c5c ACM	8
	9	#include "cache.h"
	10	#include "hist.h"
	11	#include "session.h"
	12	#include "sort.h"
	13	#include "symbol.h"
	14
7081e087 ACM	15	static void newt_form__set_exit_keys(newtComponent self)
	16	{
	17	newtFormAddHotKey(self, NEWT_KEY_ESCAPE);
	18	newtFormAddHotKey(self, 'Q');
	19	newtFormAddHotKey(self, 'q');
	20	newtFormAddHotKey(self, CTRL('c'));
	21	}
	22
	23	static newtComponent newt_form__new(void)
	24	{
	25	newtComponent self = newtForm(NULL, NULL, 0);
	26	if (self)
	27	newt_form__set_exit_keys(self);
	28	return self;
	29	}
	30
53c54019 ACM	31	static int popup_menu(int argc, const char *argv[])
	32	{
	33	struct newtExitStruct es;
	34	int i, rc = -1, max_len = 5;
	35	newtComponent listbox, form = newt_form__new();
	36
	37	if (form == NULL)
	38	return -1;
	39
	40	listbox = newtListbox(0, 0, argc, NEWT_FLAG_RETURNEXIT);
	41	if (listbox == NULL)
	42	goto out_destroy_form;
	43
	44	newtFormAddComponents(form, listbox, NULL);
	45
	46	for (i = 0; i < argc; ++i) {
	47	int len = strlen(argv[i]);
	48	if (len > max_len)
	49	max_len = len;
	50	if (newtListboxAddEntry(listbox, argv[i], (void *)(long)i))
	51	goto out_destroy_form;
	52	}
	53
	54	newtCenteredWindow(max_len, argc, NULL);
	55	newtFormRun(form, &es);
	56	rc = newtListboxGetCurrent(listbox) - NULL;
	57	if (es.reason == NEWT_EXIT_HOTKEY)
	58	rc = -1;
	59	newtPopWindow();
	60	out_destroy_form:
	61	newtFormDestroy(form);
	62	return rc;
	63	}
	64
	65	static bool dialog_yesno(const char *msg)
	66	{
	67	/* newtWinChoice should really be accepting const char pointers... */
	68	char yes[] = "Yes", no[] = "No";
	69	return newtWinChoice(NULL, no, yes, (char *)msg) == 2;
	70	}
	71
4ded2b25 ACM	72	/*
	73	* When debugging newt problems it was useful to be able to "unroll"
	74	* the calls to newtCheckBoxTreeAdd{Array,Item}, so that we can generate
	75	* a source file with the sequence of calls to these methods, to then
	76	* tweak the arrays to get the intended results, so I'm keeping this code
	77	* here, may be useful again in the future.
	78	*/
	79	#undef NEWT_DEBUG
	80
	81	static void newt_checkbox_tree__add(newtComponent tree, const char *str,
	82	void priv, int indexes)
	83	{
	84	#ifdef NEWT_DEBUG
	85	/* Print the newtCheckboxTreeAddArray to tinker with its index arrays */
	86	int i = 0, len = 40 - strlen(str);
	87
	88	fprintf(stderr,
	89	"\tnewtCheckboxTreeAddItem(tree, %.s\"%s\", (void *)%p, 0, ",
	90	len, len, " ", str, priv);
	91	while (indexes[i] != NEWT_ARG_LAST) {
	92	if (indexes[i] != NEWT_ARG_APPEND)
	93	fprintf(stderr, " %d,", indexes[i]);
	94	else
	95	fprintf(stderr, " %s,", "NEWT_ARG_APPEND");
	96	++i;
	97	}
	98	fprintf(stderr, " %s", " NEWT_ARG_LAST);\n");
	99	fflush(stderr);
	100	#endif
	101	newtCheckboxTreeAddArray(tree, str, priv, 0, indexes);
	102	}
	103
	104	static char callchain_list__sym_name(struct callchain_list self,
	105	char *bf, size_t bfsize)
	106	{
b3c9ac08 ACM	107	if (self->ms.sym)
b3c9ac08 ACM	108	return self->ms.sym->name;
4ded2b25 ACM	109
	110	snprintf(bf, bfsize, "%#Lx", self->ip);
	111	return bf;
	112	}
	113
	114	static void __callchain__append_graph_browser(struct callchain_node *self,
	115	newtComponent tree, u64 total,
	116	int *indexes, int depth)
	117	{
	118	struct rb_node *node;
	119	u64 new_total, remaining;
	120	int idx = 0;
	121
	122	if (callchain_param.mode == CHAIN_GRAPH_REL)
	123	new_total = self->children_hit;
	124	else
	125	new_total = total;
	126
	127	remaining = new_total;
	128	node = rb_first(&self->rb_root);
	129	while (node) {
	130	struct callchain_node *child = rb_entry(node, struct callchain_node, rb_node);
	131	struct rb_node *next = rb_next(node);
	132	u64 cumul = cumul_hits(child);
	133	struct callchain_list *chain;
	134	int first = true, printed = 0;
	135	int chain_idx = -1;
	136	remaining -= cumul;
	137
	138	indexes[depth] = NEWT_ARG_APPEND;
	139	indexes[depth + 1] = NEWT_ARG_LAST;
	140
	141	list_for_each_entry(chain, &child->val, list) {
	142	char ipstr[BITS_PER_LONG / 4 + 1],
	143	*alloc_str = NULL;
	144	const char *str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
	145
	146	if (first) {
	147	double percent = cumul * 100.0 / new_total;
	148
	149	first = false;
	150	if (asprintf(&alloc_str, "%2.2f%% %s", percent, str) < 0)
	151	str = "Not enough memory!";
	152	else
	153	str = alloc_str;
	154	} else {
	155	indexes[depth] = idx;
	156	indexes[depth + 1] = NEWT_ARG_APPEND;
	157	indexes[depth + 2] = NEWT_ARG_LAST;
	158	++chain_idx;
	159	}
b3c9ac08	160	newt_checkbox_tree__add(tree, str, chain->ms.sym, indexes);
4ded2b25 ACM	161	free(alloc_str);
	162	++printed;
	163	}
	164
	165	indexes[depth] = idx;
	166	if (chain_idx != -1)
	167	indexes[depth + 1] = chain_idx;
	168	if (printed != 0)
	169	++idx;
	170	__callchain__append_graph_browser(child, tree, new_total, indexes,
	171	depth + (chain_idx != -1 ? 2 : 1));
	172	node = next;
	173	}
	174	}
	175
	176	static void callchain__append_graph_browser(struct callchain_node *self,
	177	newtComponent tree, u64 total,
	178	int *indexes, int parent_idx)
	179	{
	180	struct callchain_list *chain;
	181	int i = 0;
	182
	183	indexes[1] = NEWT_ARG_APPEND;
	184	indexes[2] = NEWT_ARG_LAST;
	185
	186	list_for_each_entry(chain, &self->val, list) {
	187	char ipstr[BITS_PER_LONG / 4 + 1], *str;
	188
	189	if (chain->ip >= PERF_CONTEXT_MAX)
	190	continue;
	191
	192	if (!i++ && sort__first_dimension == SORT_SYM)
	193	continue;
	194
	195	str = callchain_list__sym_name(chain, ipstr, sizeof(ipstr));
b3c9ac08	196	newt_checkbox_tree__add(tree, str, chain->ms.sym, indexes);
4ded2b25 ACM	197	}
	198
	199	indexes[1] = parent_idx;
	200	indexes[2] = NEWT_ARG_APPEND;
	201	indexes[3] = NEWT_ARG_LAST;
	202	__callchain__append_graph_browser(self, tree, total, indexes, 2);
	203	}
	204
	205	static void hist_entry__append_callchain_browser(struct hist_entry *self,
	206	newtComponent tree, u64 total, int parent_idx)
	207	{
	208	struct rb_node *rb_node;
	209	int indexes[1024] = { [0] = parent_idx, };
	210	int idx = 0;
	211	struct callchain_node *chain;
	212
	213	rb_node = rb_first(&self->sorted_chain);
	214	while (rb_node) {
	215	chain = rb_entry(rb_node, struct callchain_node, rb_node);
	216	switch (callchain_param.mode) {
	217	case CHAIN_FLAT:
	218	break;
	219	case CHAIN_GRAPH_ABS: /* falldown */
	220	case CHAIN_GRAPH_REL:
	221	callchain__append_graph_browser(chain, tree, total, indexes, idx++);
	222	break;
	223	case CHAIN_NONE:
	224	default:
	225	break;
	226	}
	227	rb_node = rb_next(rb_node);
	228	}
	229	}
	230
	231	/*
	232	* FIXME: get lib/string.c linked with perf somehow
	233	*/
	234	static char skip_spaces(const char str)
	235	{
	236	while (isspace(*str))
	237	++str;
	238	return (char *)str;
	239	}
	240
	241	static char strim(char s)
	242	{
	243	size_t size;
	244	char *end;
	245
	246	s = skip_spaces(s);
	247	size = strlen(s);
	248	if (!size)
	249	return s;
	250
	251	end = s + size - 1;
	252	while (end >= s && isspace(*end))
	253	end--;
	254	*(end + 1) = '\0';
	255
	256	return s;
	257	}
	258
f9224c5c	259	static size_t hist_entry__append_browser(struct hist_entry *self,
4ded2b25	260	newtComponent tree, u64 total)
f9224c5c	261	{
4ded2b25	262	char bf[1024], *s;
f9224c5c ACM	263	FILE *fp;
	264
	265	if (symbol_conf.exclude_other && !self->parent)
	266	return 0;
	267
	268	fp = fmemopen(bf, sizeof(bf), "w");
	269	if (fp == NULL)
	270	return 0;
	271
4ded2b25	272	hist_entry__fprintf(self, NULL, false, 0, fp, total);
f9224c5c	273	fclose(fp);
4ded2b25 ACM	274
	275	/*
	276	* FIXME: We shouldn't need to trim, as the printing routines shouldn't
	277	* add spaces it in the first place, the stdio output routines should
	278	* call a __snprintf method instead of the current __print (that
	279	* actually is a __fprintf) one, but get the raw string and _then_ add
	280	* the newline, as this is a detail of stdio printing, not needed in
	281	* other UIs, e.g. newt.
	282	*/
	283	s = strim(bf);
	284
	285	if (symbol_conf.use_callchain) {
	286	int indexes[2];
	287
	288	indexes[0] = NEWT_ARG_APPEND;
	289	indexes[1] = NEWT_ARG_LAST;
59fd5306	290	newt_checkbox_tree__add(tree, s, self->ms.sym, indexes);
4ded2b25	291	} else
59fd5306	292	newtListboxAppendEntry(tree, s, self->ms.sym);
4ded2b25 ACM	293
4ded2b25 ACM	294	return strlen(s);
f9224c5c ACM	295	}
f9224c5c ACM	296
4ded2b25	297	static void symbol__annotate_browser(const struct symbol *self)
f9224c5c ACM	298	{
f9224c5c ACM	299	FILE *fp;
cb7afb70	300	int cols, rows;
4ded2b25	301	newtComponent form, tree;
f9224c5c ACM	302	struct newtExitStruct es;
	303	char *str;
	304	size_t line_len, max_line_len = 0;
	305	size_t max_usable_width;
	306	char *line = NULL;
	307
4ded2b25	308	if (self == NULL)
f9224c5c ACM	309	return;
f9224c5c ACM	310
4ded2b25	311	if (asprintf(&str, "perf annotate %s 2>&1 \| expand", self->name) < 0)
f9224c5c ACM	312	return;
	313
	314	fp = popen(str, "r");
	315	if (fp == NULL)
	316	goto out_free_str;
	317
	318	newtPushHelpLine("Press ESC to exit");
cb7afb70	319	newtGetScreenSize(&cols, &rows);
4ded2b25	320	tree = newtListbox(0, 0, rows - 5, NEWT_FLAG_SCROLL);
f9224c5c ACM	321
	322	while (!feof(fp)) {
	323	if (getline(&line, &line_len, fp) < 0 \|\| !line_len)
	324	break;
	325	while (line_len != 0 && isspace(line[line_len - 1]))
	326	line[--line_len] = '\0';
	327
	328	if (line_len > max_line_len)
	329	max_line_len = line_len;
4ded2b25	330	newtListboxAppendEntry(tree, line, NULL);
f9224c5c ACM	331	}
	332	fclose(fp);
	333	free(line);
	334
cb7afb70	335	max_usable_width = cols - 22;
f9224c5c ACM	336	if (max_line_len > max_usable_width)
	337	max_line_len = max_usable_width;
	338
4ded2b25	339	newtListboxSetWidth(tree, max_line_len);
f9224c5c	340
4ded2b25	341	newtCenteredWindow(max_line_len + 2, rows - 5, self->name);
7081e087	342	form = newt_form__new();
4ded2b25	343	newtFormAddComponents(form, tree, NULL);
f9224c5c ACM	344
	345	newtFormRun(form, &es);
	346	newtFormDestroy(form);
	347	newtPopWindow();
	348	newtPopHelpLine();
	349	out_free_str:
	350	free(str);
	351	}
	352
53c54019 ACM	353	static const void *newt__symbol_tree_get_current(newtComponent self)
	354	{
	355	if (symbol_conf.use_callchain)
	356	return newtCheckboxTreeGetCurrent(self);
	357	return newtListboxGetCurrent(self);
	358	}
	359
	360	static void perf_session__selection(newtComponent self, void *data)
	361	{
	362	const struct symbol **symbol_ptr = data;
	363	*symbol_ptr = newt__symbol_tree_get_current(self);
	364	}
	365
f9224c5c ACM	366	void perf_session__browse_hists(struct rb_root *hists, u64 session_total,
	367	const char *helpline)
	368	{
	369	struct sort_entry *se;
	370	struct rb_node *nd;
4ded2b25	371	char seq[] = ".";
f9224c5c ACM	372	unsigned int width;
f9224c5c ACM	373	char *col_width = symbol_conf.col_width_list_str;
4ded2b25 ACM	374	int rows, cols, idx;
4ded2b25 ACM	375	int max_len = 0;
f9224c5c	376	char str[1024];
4ded2b25	377	newtComponent form, tree;
f9224c5c	378	struct newtExitStruct es;
53c54019	379	const struct symbol *selection;
f9224c5c ACM	380
	381	snprintf(str, sizeof(str), "Samples: %Ld", session_total);
	382	newtDrawRootText(0, 0, str);
	383	newtPushHelpLine(helpline);
	384
4ded2b25	385	newtGetScreenSize(&cols, &rows);
f9224c5c	386
4ded2b25 ACM	387	if (symbol_conf.use_callchain)
	388	tree = newtCheckboxTreeMulti(0, 0, rows - 5, seq,
	389	NEWT_FLAG_SCROLL);
	390	else
	391	tree = newtListbox(0, 0, rows - 5, (NEWT_FLAG_SCROLL \|
	392	NEWT_FLAG_RETURNEXIT));
f9224c5c	393
53c54019 ACM	394	newtComponentAddCallback(tree, perf_session__selection, &selection);
53c54019 ACM	395
f9224c5c ACM	396	list_for_each_entry(se, &hist_entry__sort_list, list) {
	397	if (se->elide)
	398	continue;
	399	width = strlen(se->header);
	400	if (se->width) {
	401	if (symbol_conf.col_width_list_str) {
	402	if (col_width) {
	403	*se->width = atoi(col_width);
	404	col_width = strchr(col_width, ',');
	405	if (col_width)
	406	++col_width;
	407	}
	408	}
	409	se->width = max(se->width, width);
	410	}
	411	}
	412
4ded2b25	413	idx = 0;
f9224c5c ACM	414	for (nd = rb_first(hists); nd; nd = rb_next(nd)) {
f9224c5c ACM	415	struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
4ded2b25	416	int len = hist_entry__append_browser(h, tree, session_total);
f9224c5c ACM	417	if (len > max_len)
f9224c5c ACM	418	max_len = len;
4ded2b25 ACM	419	if (symbol_conf.use_callchain) {
	420	hist_entry__append_callchain_browser(h, tree, session_total, idx++);
	421	if (idx > 3300)
	422	break;
	423	}
f9224c5c ACM	424	}
f9224c5c ACM	425
4ded2b25 ACM	426	if (max_len > cols)
	427	max_len = cols - 3;
	428
	429	if (!symbol_conf.use_callchain)
	430	newtListboxSetWidth(tree, max_len);
	431
	432	newtCenteredWindow(max_len + (symbol_conf.use_callchain ? 5 : 0),
	433	rows - 5, "Report");
	434	form = newt_form__new();
	435	newtFormAddHotKey(form, 'A');
	436	newtFormAddHotKey(form, 'a');
53c54019	437	newtFormAddHotKey(form, NEWT_KEY_RIGHT);
4ded2b25	438	newtFormAddComponents(form, tree, NULL);
53c54019	439	selection = newt__symbol_tree_get_current(tree);
f9224c5c ACM	440
f9224c5c ACM	441	while (1) {
53c54019 ACM	442	char annotate[512];
	443	const char *options[2];
	444	int nr_options = 0, choice;
f9224c5c ACM	445
f9224c5c ACM	446	newtFormRun(form, &es);
53c54019 ACM	447	if (es.reason == NEWT_EXIT_HOTKEY) {
	448	if (toupper(es.u.key) == 'A') {
	449	symbol__annotate_browser(selection);
	450	continue;
	451	}
	452	if (es.u.key == NEWT_KEY_ESCAPE \|\|
	453	toupper(es.u.key) == 'Q' \|\|
	454	es.u.key == CTRL('c')) {
	455	if (dialog_yesno("Do you really want to exit?"))
	456	break;
	457	else
	458	continue;
	459	}
	460	}
	461
	462	if (selection != NULL) {
	463	snprintf(annotate, sizeof(annotate),
	464	"Annotate %s", selection->name);
	465	options[nr_options++] = annotate;
	466	}
	467
	468	options[nr_options++] = "Exit";
	469	choice = popup_menu(nr_options, options);
	470	if (choice == nr_options - 1)
f9224c5c	471	break;
53c54019 ACM	472	else if (selection != NULL && choice >= 0)
53c54019 ACM	473	symbol__annotate_browser(selection);
f9224c5c ACM	474	}
	475
	476	newtFormDestroy(form);
4ded2b25	477	newtPopWindow();
f9224c5c ACM	478	}
f9224c5c ACM	479
f3a1f0ea ACM	480	static char browser__last_msg[1024];
f3a1f0ea ACM	481
f9224c5c ACM	482	int browser__show_help(const char *format, va_list ap)
	483	{
	484	int ret;
	485	static int backlog;
f9224c5c	486
f3a1f0ea ACM	487	ret = vsnprintf(browser__last_msg + backlog,
f3a1f0ea ACM	488	sizeof(browser__last_msg) - backlog, format, ap);
f9224c5c ACM	489	backlog += ret;
f9224c5c ACM	490
f3a1f0ea	491	if (browser__last_msg[backlog - 1] == '\n') {
f9224c5c	492	newtPopHelpLine();
f3a1f0ea	493	newtPushHelpLine(browser__last_msg);
f9224c5c ACM	494	newtRefresh();
	495	backlog = 0;
	496	}
	497
	498	return ret;
	499	}
	500
f9224c5c ACM	501	void setup_browser(void)
	502	{
	503	if (!isatty(1))
	504	return;
	505
	506	use_browser = true;
	507	newtInit();
	508	newtCls();
	509	newtPushHelpLine(" ");
	510	}
	511
f3a1f0ea	512	void exit_browser(bool wait_for_ok)
f9224c5c	513	{
f3a1f0ea ACM	514	if (use_browser) {
	515	if (wait_for_ok) {
	516	char title[] = "Fatal Error", ok[] = "Ok";
	517	newtWinMessage(title, ok, browser__last_msg);
	518	}
f9224c5c	519	newtFinished();
f3a1f0ea	520	}
f9224c5c	521	}