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top: reverse the #define defaults for separate threads

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Rather than having those 3 separate background threads
enabled by default, we'll turn them off until somebody
chooses to activate them. That seems more appropriate.

Signed-off-by: Jim Warner <james.warner@comcast.net>
This commit is contained in:
Jim Warner 2021-09-19 00:00:00 -05:00 committed by Craig Small
parent 29f0a674a8
commit 476327048c
2 changed files with 22 additions and 22 deletions
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38
top/top.c
View File

@ -274,15 +274,15 @@ enum Rel_memitems {
/* Support for concurrent library updates via
multithreaded background processes */
#ifndef THREADNO_CPU
#ifdef THREADED_CPU
static pthread_t Thread_id_cpus;
static sem_t Semaphore_cpus_beg, Semaphore_cpus_end;
#endif
#ifndef THREADNO_MEM
#ifdef THREADED_MEM
static pthread_t Thread_id_memory;
static sem_t Semaphore_memory_beg, Semaphore_memory_end;
#endif
#ifndef THREADNO_TSK
#ifdef THREADED_TSK
static pthread_t Thread_id_tasks;
static sem_t Semaphore_tasks_beg, Semaphore_tasks_end;
#endif
@ -436,19 +436,19 @@ static void bye_bye (const char *str) {
// there's lots of signal-unsafe stuff in the following ...
if (Frames_signal != BREAK_sig) {
#ifndef THREADNO_CPU
#ifdef THREADED_CPU
pthread_cancel(Thread_id_cpus);
pthread_join(Thread_id_cpus, NULL);
sem_destroy(&Semaphore_cpus_beg);
sem_destroy(&Semaphore_cpus_end);
#endif
#ifndef THREADNO_MEM
#ifdef THREADED_MEM
pthread_cancel(Thread_id_memory);
pthread_join(Thread_id_memory, NULL);
sem_destroy(&Semaphore_memory_beg);
sem_destroy(&Semaphore_memory_end);
#endif
#ifndef THREADNO_TSK
#ifdef THREADED_TSK
pthread_cancel(Thread_id_tasks);
pthread_join(Thread_id_tasks, NULL);
sem_destroy(&Semaphore_tasks_end);
@ -2395,7 +2395,7 @@ static void *cpus_refresh (void *unused) {
enum stat_reap_type which;
do {
#ifndef THREADNO_CPU
#ifdef THREADED_CPU
sem_wait(&Semaphore_cpus_beg);
#endif
which = STAT_REAP_CPUS_ONLY;
@ -2418,7 +2418,7 @@ static void *cpus_refresh (void *unused) {
Cpu_cnt = 48;
#endif
}
#ifndef THREADNO_CPU
#ifdef THREADED_CPU
sem_post(&Semaphore_cpus_end);
} while (1);
#else
@ -2437,7 +2437,7 @@ static void *memory_refresh (void *unused) {
time_t cur_secs;
do {
#ifndef THREADNO_MEM
#ifdef THREADED_MEM
sem_wait(&Semaphore_memory_beg);
#endif
if (Frames_signal)
@ -2449,7 +2449,7 @@ static void *memory_refresh (void *unused) {
error_exit(fmtmk(N_fmt(LIB_errormem_fmt),__LINE__, strerror(errno)));
sav_secs = cur_secs;
}
#ifndef THREADNO_MEM
#ifdef THREADED_MEM
sem_post(&Semaphore_memory_end);
} while (1);
#else
@ -2474,7 +2474,7 @@ static void *tasks_refresh (void *unused) {
int i, what;
do {
#ifndef THREADNO_TSK
#ifdef THREADED_TSK
sem_wait(&Semaphore_tasks_beg);
#endif
procps_uptime(&uptime_cur, NULL);
@ -2505,7 +2505,7 @@ static void *tasks_refresh (void *unused) {
for (i = 0; i < GROUPSMAX; i++)
memcpy(Winstk[i].ppt, Pids_reap->stacks, sizeof(void *) * PIDSmaxt);
}
#ifndef THREADNO_TSK
#ifdef THREADED_TSK
sem_post(&Semaphore_tasks_end);
} while (1);
#else
@ -3374,7 +3374,7 @@ static void before (char *me) {
sigfillset(&sa.sa_mask);
pthread_sigmask(SIG_BLOCK, &sa.sa_mask, NULL);
#ifndef THREADNO_CPU
#ifdef THREADED_CPU
if (0 != sem_init(&Semaphore_cpus_beg, 0, 0)
|| (0 != sem_init(&Semaphore_cpus_end, 0, 0)))
error_exit(fmtmk(N_fmt(X_SEMAPHORES_fmt),__LINE__, strerror(errno)));
@ -3382,7 +3382,7 @@ static void before (char *me) {
error_exit(fmtmk(N_fmt(X_THREADINGS_fmt),__LINE__, strerror(errno)));
pthread_setname_np(Thread_id_cpus, "update cpus");
#endif
#ifndef THREADNO_MEM
#ifdef THREADED_MEM
if (0 != sem_init(&Semaphore_memory_beg, 0, 0)
|| (0 != sem_init(&Semaphore_memory_end, 0, 0)))
error_exit(fmtmk(N_fmt(X_SEMAPHORES_fmt),__LINE__, strerror(errno)));
@ -3390,7 +3390,7 @@ static void before (char *me) {
error_exit(fmtmk(N_fmt(X_THREADINGS_fmt),__LINE__, strerror(errno)));
pthread_setname_np(Thread_id_memory, "update memory");
#endif
#ifndef THREADNO_TSK
#ifdef THREADED_TSK
if (0 != sem_init(&Semaphore_tasks_beg, 0, 0)
|| (0 != sem_init(&Semaphore_tasks_end, 0, 0)))
error_exit(fmtmk(N_fmt(X_SEMAPHORES_fmt),__LINE__, strerror(errno)));
@ -6366,7 +6366,7 @@ static void frame_make (void) {
// whoa either first time or thread/task mode change, (re)prime the pump...
if (Pseudo_row == PROC_XTRA) {
#ifndef THREADNO_TSK
#ifdef THREADED_TSK
sem_post(&Semaphore_tasks_beg);
sem_wait(&Semaphore_tasks_end);
#else
@ -6377,17 +6377,17 @@ static void frame_make (void) {
} else
putp(Batch ? "\n\n" : Cap_home);
#ifndef THREADNO_TSK
#ifdef THREADED_TSK
sem_post(&Semaphore_tasks_beg);
#else
tasks_refresh(NULL);
#endif
#ifndef THREADNO_CPU
#ifdef THREADED_CPU
sem_post(&Semaphore_cpus_beg);
#else
cpus_refresh(NULL);
#endif
#ifndef THREADNO_MEM
#ifdef THREADED_MEM
sem_post(&Semaphore_memory_beg);
#else
memory_refresh(NULL);

6
top/top.h
View File

@ -50,9 +50,9 @@
//#define SCROLLV_BY_1 /* when scrolling left/right do not move 8 */
//#define STRINGCASENO /* case insenstive compare/locate versions */
//#define TERMIOS_ONLY /* use native input only (just limp along) */
//#define THREADNO_CPU /* suppress background thread for cpu updt */
//#define THREADNO_MEM /* suppress background thread for mem updt */
//#define THREADNO_TSK /* suppress background thread for tsk updt */
//#define THREADED_CPU /* separate background thread for cpu updt */
//#define THREADED_MEM /* separate background thread for mem updt */
//#define THREADED_TSK /* separate background thread for tsk updt */
//#define TOG4_NOFORCE /* no force 2 abreast mode with '4' toggle */
//#define TOG4_NOTRUNC /* ensure no truncation for 2 abreast mode */
//#define TOG4_OFF_MEM /* don't show two abreast memory statistic */