emo/procps
1
0
Fork 0
Code Issues Pull Requests Packages Releases Activity

SPACE_AMOUNT

Browse Source
This commit is contained in:
albert 2002-12-03 22:53:45 +00:00
parent 029864fe4f
commit 1ab9afe8a5
1 changed files with 12 additions and 11 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

23
ps/output.c
View File

@ -1603,6 +1603,9 @@ static void check_header_width(void){
/********** show one process (NULL proc prints header) **********/
//#define SPACE_AMOUNT page_size
#define SPACE_AMOUNT 128
static char *saved_outbuf;
void show_one_proc(const proc_t *restrict const p){
@ -1724,7 +1727,7 @@ void show_one_proc(const proc_t *restrict const p){
*/
space = correct - actual + leftpad;
if(space<1) space=dospace;
if(space>page_size) space=page_size; // only have so much available
if(space>SPACE_AMOUNT) space=SPACE_AMOUNT; // only have so much available
/* print data, set x position stuff */
amount = strlen(outbuf); /* post-chop data width */
@ -1786,23 +1789,21 @@ void init_output(void){
case 1024: page_shift = 10; break;
}
outbuf_pages = OUTBUF_SIZE/page_size+1; // round up
// add page_size-1 to round up
outbuf_pages = (OUTBUF_SIZE+SPACE_AMOUNT+page_size-1)/page_size;
outbuf = mmap(
0,
page_size * (1+1+outbuf_pages+1),
page_size * (outbuf_pages+1), // 1 more, for guard page at high addresses
PROT_READ | PROT_WRITE,
MAP_PRIVATE | MAP_ANONYMOUS,
-1,
0
);
mprotect(outbuf, page_size, PROT_NONE); // gaurd page
outbuf += page_size;
memset(outbuf, ' ', page_size);
mprotect(outbuf, page_size, PROT_READ); // space page
outbuf += page_size;
// now outbuf points where we want it
mprotect(outbuf + page_size * outbuf_pages, page_size, PROT_NONE); // gaurd page
saved_outbuf = outbuf;
memset(outbuf, ' ', SPACE_AMOUNT);
if(SPACE_AMOUNT==page_size) mprotect(outbuf, page_size, PROT_READ);
mprotect(outbuf + page_size*outbuf_pages, page_size, PROT_NONE); // gaurd page
saved_outbuf = outbuf + SPACE_AMOUNT;
// available space: page_size*outbuf_pages-SPACE_AMOUNT
seconds_since_1970 = time(NULL);
time_of_boot = seconds_since_1970 - seconds_since_boot;