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irqbalance-ui: display irq name in SETUP IRQS 

get irq name from /proc/interrupts

Signed-off-by: Liu Chao <liuchao173@huawei.com>
This commit is contained in:
Liu Chao 2022-07-14 16:10:01 +08:00
parent 167580790c
commit 402ca1b7a0
1 changed files with 40 additions and 1 deletions
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41
ui/ui.c
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@ -9,6 +9,8 @@ int max_offset;
GList *all_cpus = NULL;
GList *all_irqs = NULL;
static char **irq_name;
char *IRQ_CLASS_TO_STR[] = {
"Other",
"Legacy",
@ -392,6 +394,38 @@ void print_assigned_objects_string(irq_t *irq, int *line_offset)
mvprintw(*line_offset, 68, "%s ", assigned_to);
}
void get_irq_name(int end)
{
int i, cpunr, len;
FILE *output;
char *cmd;
char buffer[128];
if (irq_name == NULL) {
irq_name = malloc(sizeof(char *) * LINES);
for (i = 4; i < LINES; i++) {
irq_name[i] = malloc(sizeof(char) * 50);
memset(irq_name[i], 0, sizeof(char) * 50);
}
}
output = popen("cat /proc/interrupts | head -1 | awk '{print NF}'", "r");
if (!output)
return;
fscanf(output, "%d", &cpunr);
pclose(output);
len = snprintf(NULL, 0, "cat /proc/interrupts | awk '{for (i=%d;i<=NF;i++)printf(\"%%s \", $i);print \"\"}' | cut -c-49", cpunr + 2);
cmd = alloca(sizeof(char) * (len + 1));
snprintf(cmd, len + 1, "cat /proc/interrupts | awk '{for (i=%d;i<=NF;i++)printf(\"%%s \", $i);print \"\"}' | cut -c-49", cpunr + 2);
output = popen(cmd, "r");
for (i = 0; i <= offset; i++)
fgets(buffer, 50, output);
for (i = 4; i < end; i++)
fgets(irq_name[i], 50, output);
pclose(output);
}
void print_tmp_irq_line(irq_t *irq, void *data __attribute__((unused)))
{
int line = max_offset - offset + 4;
@ -428,6 +462,7 @@ void print_tmp_irq_line(irq_t *irq, void *data __attribute__((unused)))
mvprintw(line, 36, "%s ",
irq->class < 0 ? "Unknown" : IRQ_CLASS_TO_STR[irq->class]);
print_assigned_objects_string(irq, &line);
mvprintw(line, 120, "%s", irq_name[line]);
}
void print_irq_line(irq_t *irq, void *data __attribute__((unused)))
@ -466,6 +501,7 @@ void print_irq_line(irq_t *irq, void *data __attribute__((unused)))
mvprintw(line, 36, "%s ",
irq->class < 0 ? "Unknown" : IRQ_CLASS_TO_STR[irq->class]);
print_assigned_objects_string(irq, &line);
mvprintw(line, 120, "%s", irq_name[line]);
}
void print_all_irqs()
@ -474,7 +510,8 @@ void print_all_irqs()
attrset(COLOR_PAIR(0));
mvprintw(2, 3,
"NUMBER IS BANNED CLASS \
ASSIGNED TO CPUS");
ASSIGNED TO CPUS IRQ NAME");
get_irq_name(LINES - 2);
for_each_irq(all_irqs, print_irq_line, NULL);
max_offset -= LINES - 6;
if (max_offset < 0)
@ -545,6 +582,7 @@ void handle_irq_banning()
} else if (offset > 0) {
offset--;
max_offset = 0;
get_irq_name(LINES - 3);
for_each_irq(tmp, print_tmp_irq_line, NULL);
max_offset -= LINES - 7;
if (max_offset < 0)
@ -561,6 +599,7 @@ void handle_irq_banning()
} else if (offset < max_offset) {
offset++;
max_offset = 0;
get_irq_name(LINES - 3);
for_each_irq(tmp, print_tmp_irq_line, NULL);
max_offset -= LINES - 7;
if (max_offset < 0)