debug wordpress plugin wraprecs

Author: mfulb

agent/php_user_instrument.c

@@ -14,6 +14,7 @@
 #include "util_memory.h"
 #include "util_strings.h"
 #include "util_syscalls.h"
+#include <pthread.h>
 
 /*
  * The mechanism of zend_try .. zend_catch .. zend_end_try
@@ -209,13 +210,58 @@ static nr_php_wraprec_hashmap_t* user_function_wrappers;
 
 static inline void nr_php_wraprec_lookup_set(nruserfn_t* wr,
                                              zend_function* zf) {
+  /* Debug logging for WordPress functions */
+  if (nrl_should_print(NRL_VERBOSEDEBUG, NRL_FRAMEWORK)) {
+    char* func_name = nr_php_function_debug_name(zf);
+    if (func_name && (nr_strstr(func_name, "bbp_") || nr_strstr(func_name, "pre_post_update"))) {
+      nrl_verbosedebug(
+          NRL_FRAMEWORK,
+          "[NR WP SET] Storing %s on thread %p: wraprec=%p in hashmap=%p (elements before=%zu)",
+          func_name ? func_name : "<NULL>",
+          (void*)pthread_self(),
+          (void*)wr,
+          (void*)user_function_wrappers,
+          user_function_wrappers ? user_function_wrappers->elements : 0);
+    }
+    nr_free(func_name);
+  }
+
   nr_php_wraprec_hashmap_update(user_function_wrappers, zf, wr);
+
+  /* Debug logging after update */
+  if (nrl_should_print(NRL_VERBOSEDEBUG, NRL_FRAMEWORK)) {
+    char* func_name = nr_php_function_debug_name(zf);
+    if (func_name && (nr_strstr(func_name, "bbp_") || nr_strstr(func_name, "pre_post_update"))) {
+      nrl_verbosedebug(
+          NRL_FRAMEWORK,
+          "[NR WP SET] Stored %s: hashmap now has %zu elements",
+          func_name ? func_name : "<NULL>",
+          user_function_wrappers ? user_function_wrappers->elements : 0);
+    }
+    nr_free(func_name);
+  }
 }
 static inline nruserfn_t* nr_php_wraprec_lookup_get(zend_function* zf) {
   nruserfn_t* wraprec = NULL;
 
   nr_php_wraprec_hashmap_get_into(user_function_wrappers, zf, &wraprec);
 
+  /* Debug logging for WordPress functions */
+  if (nrl_should_print(NRL_VERBOSEDEBUG, NRL_FRAMEWORK)) {
+    char* func_name = nr_php_function_debug_name(zf);
+    if (func_name && (nr_strstr(func_name, "bbp_") || nr_strstr(func_name, "pre_post_update"))) {
+      nrl_verbosedebug(
+          NRL_FRAMEWORK,
+          "[NR WP LOOKUP] Function %s on thread %p: wraprec %s (hashmap=%p, elements=%zu)",
+          func_name ? func_name : "<NULL>",
+          (void*)pthread_self(),
+          wraprec ? "FOUND" : "NOT FOUND",
+          (void*)user_function_wrappers,
+          user_function_wrappers ? user_function_wrappers->elements : 0);
+    }
+    nr_free(func_name);
+  }
+
   return wraprec;
 }
 
@@ -235,6 +281,11 @@ void nr_php_init_user_instrumentation(void) {
   }
   user_function_wrappers
       = nr_php_wraprec_hashmap_create_buckets(1024, reset_wraprec);
+  nrl_verbosedebug(
+      NRL_INSTRUMENT,
+      "[NR HASHMAP] Initialized wraprec hashmap=%p on thread %p",
+      (void*)user_function_wrappers,
+      (void*)pthread_self());
 }
 
 /*