From: Pierre Habouzit <madcoder@debian.org>
Date: Sun, 13 Jan 2008 11:09:59 +0000 (+0100)
Subject: Move the threading stuff in the evtloop module.
X-Git-Url: http://git.madism.org/?a=commitdiff_plain;h=5d91980585aec03b90e77d650f6853aaf9d2dfc5;p=apps%2Fmadmutt.git

Move the threading stuff in the evtloop module.

Signed-off-by: Pierre Habouzit <madcoder@debian.org>
---

diff --git a/lib-sys/evtloop.c b/lib-sys/evtloop.c
index a28c9b8..1d7e252 100644
--- a/lib-sys/evtloop.c
+++ b/lib-sys/evtloop.c
@@ -13,8 +13,9 @@
  *  along with this program; if not, write to the Free Software
  *  Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
  *  MA 02110-1301, USA.
- *
- *  Copyright © 2006 Pierre Habouzit
+ */
+/*
+ *  Copyright © 2007 Pierre Habouzit
  */
 
 #include <pthread.h>
@@ -36,6 +37,8 @@ DO_ARRAY_TYPE(job_t, job);
 
 static int epollfd = -1;
 static job_array jobs;
+static pthread_mutex_t mx;
+static pthread_t el_thread;
 
 static int el_job_setemode(job_t *w, el_mode emode)
 {
@@ -293,6 +296,16 @@ ssize_t el_job_write(job_t *w, buffer_t *buf)
     return nr;
 }
 
+void el_lock(void)
+{
+    pthread_mutex_lock(&mx);
+}
+
+void el_unlock(void)
+{
+    pthread_mutex_unlock(&mx);
+}
+
 int el_dispatch(int timeout)
 {
     struct epoll_event events[FD_SETSIZE];
@@ -305,6 +318,7 @@ int el_dispatch(int timeout)
         mutt_exit(EXIT_FAILURE);
     }
 
+    el_lock();
     while (--count >= 0) {
         job_t *w  = events[count].data.ptr;
         int event = events[count].events;
@@ -335,11 +349,12 @@ int el_dispatch(int timeout)
             break;
         }
     }
+    el_unlock();
 
     return 0;
 }
 
-void *el_loop(void *data)
+static void *el_loop(void *data)
 {
     time_t sec = time(NULL);
 
@@ -354,16 +369,27 @@ void *el_loop(void *data)
             continue;
         sec = now.tv_sec;
         now.tv_sec -= 10;
+
+        el_lock();
         for (int i = jobs.len - 1; i >= 0; --i) {
             job_t *w = jobs.arr[i];
-            if (timercmp(&now, &w->mru, >))
+            if (timercmp(&now, &w->mru, >)) {
                 IGNORE(w->m->on_event(w, EL_EVT_WAKEUP));
+            }
         }
+        el_unlock();
     }
 }
 
 void el_initialize(void)
 {
+    pthread_mutexattr_t attr;
+
+    pthread_mutexattr_init(&attr);
+    pthread_mutexattr_settype(&attr, PTHREAD_MUTEX_RECURSIVE_NP);
+    pthread_mutex_init(&mx, &attr);
+    pthread_mutexattr_destroy(&attr);
+
     gnutls_global_init();
     epollfd = epoll_create(1024);
     if (epollfd < 0) {
@@ -371,11 +397,15 @@ void el_initialize(void)
         mutt_exit(EXIT_FAILURE);
     }
     job_array_init(&jobs);
+    pthread_create(&el_thread, NULL, &el_loop, NULL);
 }
 
 void el_shutdown(void)
 {
+    pthread_cancel(el_thread);
+    pthread_join(el_thread, NULL);
     job_array_wipe(&jobs);
     close(epollfd);
     gnutls_global_deinit();
+    pthread_mutex_destroy(&mx);
 }
diff --git a/lib-sys/evtloop.h b/lib-sys/evtloop.h
index 0865039..961390a 100644
--- a/lib-sys/evtloop.h
+++ b/lib-sys/evtloop.h
@@ -15,7 +15,7 @@
  *  MA 02110-1301, USA.
  */
 /*
- *  Copyright © 2006 Pierre Habouzit
+ *  Copyright © 2007 Pierre Habouzit
  */
 
 #ifndef MUTT_LIB_SYS_EVTLOOP_H
@@ -95,9 +95,10 @@ __must_check__ int el_job_starttls(job_t *w);
 __must_check__ ssize_t el_job_read(job_t *w, buffer_t *buf);
 __must_check__ ssize_t el_job_write(job_t *w, buffer_t *buf);
 
+void el_lock(void);
+void el_unlock(void);
 
 int el_dispatch(int timeout);
-void *el_loop(void *);
 
 void el_initialize(void);
 void el_shutdown(void);
diff --git a/main.c b/main.c
index af2141e..cc432d9 100644
--- a/main.c
+++ b/main.c
@@ -18,7 +18,6 @@
 #include <lib-lib/lib-lib.h>
 
 #include <sys/utsname.h>
-#include <pthread.h>
 
 #include <lib-lua/lib-lua.h>
 #include <lib-sys/mutt_signal.h>
@@ -190,7 +189,6 @@ int main (int argc, char **argv)
   int version = 0;
   int i;
   int explicit_folder = 0;
-  pthread_t pt;
 
   /* initialize random number for tmp file creation */ 
   srand48((unsigned int) time (NULL));
@@ -309,7 +307,6 @@ int main (int argc, char **argv)
   el_initialize();
   mutt_init (flags & M_NOSYSRC, commands);
   string_list_wipe(&commands);
-  pthread_create(&pt, NULL, &el_loop, NULL);
 
   if (!option(OPTNOCURSES)) {
       ui_layout_init();
@@ -504,8 +501,6 @@ int main (int argc, char **argv)
     mutt_endwin (Errorbuf);
   }
 
-  pthread_cancel(pt);
-  pthread_join(pt, NULL);
   luaM_shutdown();
   mutt_sasl_shutdown();
   el_shutdown();