From 07ced4c0ae31a2fc251e3da2f0ced104cb185d70 Mon Sep 17 00:00:00 2001
From: Martin Mares <mj@ucw.cz>
Date: Mon, 18 Dec 2006 11:59:35 +0100
Subject: [PATCH] Added thread_id to ucwlib_context.

---
 lib/threads.c | 14 +++++++++++++-
 lib/threads.h |  1 +
 2 files changed, 14 insertions(+), 1 deletion(-)

diff --git a/lib/threads.c b/lib/threads.c
index f45c8e38..cd1db74d 100644
--- a/lib/threads.c
+++ b/lib/threads.c
@@ -31,6 +31,17 @@ ucwlib_threads_init(void)
   pthread_mutex_init(&ucwlib_master_mutex, NULL);
 }
 
+static int
+ucwlib_tid(void)
+{
+  static tid_counter;
+
+  ucwlib_lock();
+  int tid = ++tid_counter;
+  ucwlib_unlock();
+  return tid;
+}
+
 struct ucwlib_context *
 ucwlib_thread_context(void)
 {
@@ -38,6 +49,7 @@ ucwlib_thread_context(void)
   if (!c)
     {
       c = xmalloc_zero(sizeof(*c));
+      c->thread_id = ucwlib_tid();
       pthread_setspecific(ucwlib_context_key, c);
     }
   return c;
@@ -82,7 +94,7 @@ int main(void)
 {
   ucwlib_lock();
   ucwlib_unlock();
-  ucwlib_thread_context();
+  log(L_INFO, "tid=%d", ucwlib_thread_context()->thread_id);
   return 0;
 }
 
diff --git a/lib/threads.h b/lib/threads.h
index 9e33109e..c70354fb 100644
--- a/lib/threads.h
+++ b/lib/threads.h
@@ -13,6 +13,7 @@
 /* This structure holds per-thread data */
 
 struct ucwlib_context {
+  int thread_id;			// Thread ID (either kernel tid or a counter)
   int temp_counter;			// Counter for fb-temp.c
   struct asio_queue *io_queue;		// Async I/O queue for fb-direct.c
   sh_sighandler_t *signal_handlers;	// Signal handlers for sighandler.c
-- 
2.39.2