termux-packages/packages/calcurse/threading.patch
Leonid Pliushch a05b788a78 calcurse: update patches for pthread_cancel
Add pthread_cancel replacement through atomic_flag instead of using
pthread_kill(thread, 0).

Fixes https://github.com/termux/termux-packages/issues/4378.
2020-10-01 20:42:58 +03:00

140 lines
4.1 KiB
Diff

diff -uNr calcurse-4.6.0/src/io.c calcurse-4.6.0.mod/src/io.c
--- calcurse-4.6.0/src/io.c 2020-03-27 15:14:07.000000000 +0200
+++ calcurse-4.6.0.mod/src/io.c 2020-10-01 20:39:41.632326755 +0300
@@ -44,6 +44,7 @@
#include <math.h>
#include <unistd.h>
#include <errno.h>
+#include <stdatomic.h>
#include "calcurse.h"
#include "sha1.h"
@@ -69,6 +70,8 @@
static char apts_sha1[SHA1_DIGESTLEN * 2 + 1];
static char todo_sha1[SHA1_DIGESTLEN * 2 + 1];
+static atomic_flag psave_thread_cancel;
+
/* Ask user for a file name to export data to. */
static FILE *get_export_stream(enum export_type type)
{
@@ -1455,12 +1458,15 @@
/* Thread used to periodically save data. */
static void *io_psave_thread(void *arg)
{
+ atomic_flag_clear(&psave_thread_cancel);
+
int delay = conf.periodic_save;
EXIT_IF(delay < 0, _("Invalid delay"));
char *mesg = _("Periodic save: data files have changed. Save cancelled.");
- pthread_setcanceltype(PTHREAD_CANCEL_ASYNCHRONOUS, NULL);
for (;;) {
+ if (atomic_flag_test_and_set(&psave_thread_cancel)) pthread_exit(NULL);
+ atomic_flag_clear(&psave_thread_cancel);
sleep(delay * MININSEC);
pthread_mutex_lock(&io_periodic_save_mutex);
if (io_save_cal(periodic) == IO_SAVE_CANCEL)
@@ -1484,8 +1490,7 @@
/* Lock the mutex to avoid cancelling the thread during saving. */
pthread_mutex_lock(&io_periodic_save_mutex);
- pthread_cancel(io_t_psave);
- pthread_join(io_t_psave, NULL);
+ atomic_flag_test_and_set(&psave_thread_cancel);
pthread_mutex_unlock(&io_periodic_save_mutex);
io_t_psave = pthread_self();
}
diff -uNr calcurse-4.6.0/src/notify.c calcurse-4.6.0.mod/src/notify.c
--- calcurse-4.6.0/src/notify.c 2020-02-04 23:46:34.000000000 +0200
+++ calcurse-4.6.0.mod/src/notify.c 2020-10-01 20:39:57.884475331 +0300
@@ -38,6 +38,7 @@
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
+#include <stdatomic.h>
#include "calcurse.h"
@@ -55,6 +56,8 @@
static struct notify_app notify_app;
static pthread_attr_t detached_thread_attr;
+static atomic_flag main_thread_cancel;
+
/*
* Return the number of seconds before next appointment
* (0 if no upcoming appointment).
@@ -196,8 +199,7 @@
if (pthread_equal(notify_t_main, pthread_self()))
return;
- pthread_cancel(notify_t_main);
- pthread_join(notify_t_main, NULL);
+ atomic_flag_test_and_set(&main_thread_cancel);
notify_t_main = pthread_self();
}
@@ -334,6 +336,8 @@
/* ARGSUSED0 */
static void *notify_main_thread(void *arg)
{
+ atomic_flag_clear(&main_thread_cancel);
+
const unsigned thread_sleep = 1;
const unsigned check_app = MININSEC;
int elapse = 0;
@@ -346,6 +350,8 @@
pthread_cleanup_push(notify_main_thread_cleanup, NULL);
for (;;) {
+ if (atomic_flag_test_and_set(&main_thread_cancel)) pthread_exit(NULL);
+ atomic_flag_clear(&main_thread_cancel);
ntimer = time(NULL);
localtime_r(&ntimer, &ntime);
pthread_mutex_lock(&notify.mutex);
diff -uNr calcurse-4.6.0/src/ui-calendar.c calcurse-4.6.0.mod/src/ui-calendar.c
--- calcurse-4.6.0/src/ui-calendar.c 2020-02-04 23:46:34.000000000 +0200
+++ calcurse-4.6.0.mod/src/ui-calendar.c 2020-10-01 20:40:09.024576943 +0300
@@ -41,6 +41,7 @@
#include <time.h>
#include <math.h>
#include <langinfo.h>
+#include <stdatomic.h>
#include "calcurse.h"
@@ -59,6 +60,8 @@
static int monthly_view_cache_valid = 0;
static int monthly_view_cache_month = 0;
+static atomic_flag date_thread_cancel;
+
/* Switch between calendar views (monthly view is selected by default). */
void ui_calendar_view_next(void)
{
@@ -89,9 +92,13 @@
/* ARGSUSED0 */
static void *ui_calendar_date_thread(void *arg)
{
+ atomic_flag_clear(&date_thread_cancel);
+
time_t actual, tomorrow;
for (;;) {
+ if (atomic_flag_test_and_set(&date_thread_cancel)) pthread_exit(NULL);
+ atomic_flag_clear(&date_thread_cancel);
tomorrow = date2sec(today, 24, 0);
while ((actual = time(NULL)) < tomorrow)
@@ -118,8 +125,7 @@
if (pthread_equal(ui_calendar_t_date, pthread_self()))
return;
- pthread_cancel(ui_calendar_t_date);
- pthread_join(ui_calendar_t_date, NULL);
+ atomic_flag_test_and_set(&date_thread_cancel);
ui_calendar_t_date = pthread_self();
}