proxy: fix stats deadlock caused by await code

- specifically the WSTAT_DECR in proxy_await.c's return code could
  potentially use the wrong thread's lock

This is why I've been swapping c with thread as lock/function arguments
all over the code lately; it's very accident prone.

Am reasonably sure this causes the deadlock but need to attempt to
verify more.

1 files changed, 8 insertions, 8 deletions

diff --git a/proxy.h b/proxy.h
index 29eed86..7c94e97 100644
--- a/proxy.h
+++ b/proxy.h
@@ -42,15 +42,15 @@
 
 #define WSTAT_L(t) pthread_mutex_lock(&t->stats.mutex);
 #define WSTAT_UL(t) pthread_mutex_unlock(&t->stats.mutex);
-#define WSTAT_INCR(c, stat, amount) { \
-    pthread_mutex_lock(&c->thread->stats.mutex); \
-    c->thread->stats.stat += amount; \
-    pthread_mutex_unlock(&c->thread->stats.mutex); \
+#define WSTAT_INCR(t, stat, amount) { \
+    pthread_mutex_lock(&t->stats.mutex); \
+    t->stats.stat += amount; \
+    pthread_mutex_unlock(&t->stats.mutex); \
 }
-#define WSTAT_DECR(c, stat, amount) { \
-    pthread_mutex_lock(&c->thread->stats.mutex); \
-    c->thread->stats.stat -= amount; \
-    pthread_mutex_unlock(&c->thread->stats.mutex); \
+#define WSTAT_DECR(t, stat, amount) { \
+    pthread_mutex_lock(&t->stats.mutex); \
+    t->stats.stat -= amount; \
+    pthread_mutex_unlock(&t->stats.mutex); \
 }
 #define STAT_L(ctx) pthread_mutex_lock(&ctx->stats_lock);
 #define STAT_UL(ctx) pthread_mutex_unlock(&ctx->stats_lock);