improved debug statements

Makefile

@@ -1,7 +1,7 @@
 VERSION = 1.2.3
 
-CFLAGS += -O2 -g -Wall -Wextra -Wshadow -fanalyzer -fsanitize=undefined \
-	-Wno-analyzer-file-leak\
+CFLAGS += -O2 -g -Wall -Wextra -Wshadow \
+	-fsanitize=undefined -fanalyzer -Wno-analyzer-file-leak\
 	-rdynamic -D_GNU_SOURCE -D_FILE_OFFSET_BITS=64 -DVERSION=\"$(VERSION)\"\
 	`pkg-config --cflags-only-I gumbo libcurl fuse uuid expat`
 LDFLAGS += `pkg-config --libs-only-L gumbo libcurl fuse uuid expat`

src/cache.c

@@ -89,7 +89,9 @@ static char *CacheSystem_calc_dir(const char *url)
 
 void CacheSystem_init(const char *path, int url_supplied)
 {
-    if (pthread_mutex_lock(&cf_lock, NULL)) {
+    lprintf(cache_lock_debug,
+            "thread %x: initialise cf_lock;\n", pthread_self());
+    if (pthread_mutex_init(&cf_lock, NULL)) {
         lprintf(fatal, "cf_lock initialisation failed!\n");
     }
 

src/util.c

@@ -58,7 +58,7 @@ void PTHREAD_MUTEX_UNLOCK(pthread_mutex_t * x)
     i = pthread_mutex_unlock(x);
     if (i) {
         lprintf(fatal,
-                "thread %x: pthread_mutex_unlock() failed, %d, %s\n",
+                "thread %x: %d, %s\n",
                 pthread_self(), i, strerror(i));
     }
 }
@@ -69,7 +69,7 @@ void PTHREAD_MUTEX_LOCK(pthread_mutex_t * x)
     i = pthread_mutex_lock(x);
     if (i) {
         lprintf(fatal,
-                "thread %x: pthread_mutex_lock() failed, %d, %s\n",
+                "thread %x: %d, %s\n",
                 pthread_self(), i, strerror(i));
     }
 }