From 023488cde9c968df265df1bd8b2358f5c2216115 Mon Sep 17 00:00:00 2001
From: Adam Chlipala <adam@chlipala.net>
Date: Sun, 12 Dec 2010 10:35:04 -0500
Subject: Change Basis.debug to use the protocol's debug function

---
 include/urweb.h |  2 +-
 src/c/request.c |  2 +-
 src/c/urweb.c   | 14 +++++++++++---
 tests/hog.ur    |  4 +++-
 4 files changed, 16 insertions(+), 6 deletions(-)

diff --git a/include/urweb.h b/include/urweb.h
index a7920851..9527fac1 100644
--- a/include/urweb.h
+++ b/include/urweb.h
@@ -20,7 +20,7 @@ void uw_client_connect(unsigned id, int pass, int sock,
 void uw_prune_clients(uw_context);
 failure_kind uw_initialize(uw_context);
 
-uw_context uw_init(void);
+uw_context uw_init(void *logger_data, uw_logger log_debug);
 void uw_close(uw_context);
 int uw_set_app(uw_context, uw_app*);
 uw_app *uw_get_app(uw_context);
diff --git a/src/c/request.c b/src/c/request.c
index ae46326d..bcfec5e9 100644
--- a/src/c/request.c
+++ b/src/c/request.c
@@ -35,7 +35,7 @@ static int try_rollback(uw_context ctx, int will_retry, void *logger_data, uw_lo
 }
 
 uw_context uw_request_new_context(uw_app *app, void *logger_data, uw_logger log_error, uw_logger log_debug) {
-  uw_context ctx = uw_init();
+  uw_context ctx = uw_init(logger_data, log_debug);
   int retries_left = MAX_RETRIES;
   uw_set_app(ctx, app);
 
diff --git a/src/c/urweb.c b/src/c/urweb.c
index b4a15bce..47c6dadf 100644
--- a/src/c/urweb.c
+++ b/src/c/urweb.c
@@ -442,6 +442,9 @@ struct uw_context {
 
   void *client_data;
 
+  void *logger_data;
+  uw_logger log_debug;
+
   char error_message[ERROR_BUF_LEN];
 };
 
@@ -450,7 +453,7 @@ size_t uw_page_max = SIZE_MAX;
 size_t uw_heap_max = SIZE_MAX;
 size_t uw_script_max = SIZE_MAX;
 
-uw_context uw_init() {
+uw_context uw_init(void *logger_data, uw_logger log_debug) {
   uw_context ctx = malloc(sizeof(struct uw_context));
 
   ctx->app = NULL;
@@ -501,6 +504,9 @@ uw_context uw_init() {
 
   ctx->client_data = uw_init_client_data();
 
+  ctx->logger_data = logger_data;
+  ctx->log_debug = log_debug;
+
   return ctx;
 }
 
@@ -3441,8 +3447,10 @@ void uw_check_deadline(uw_context ctx) {
 size_t uw_database_max = SIZE_MAX;
 
 uw_Basis_unit uw_Basis_debug(uw_context ctx, uw_Basis_string s) {
-  fprintf(stderr, "%s\n", s);
-
+  if (ctx->log_debug)
+    ctx->log_debug(ctx->logger_data, "%s\n", s);
+  else
+    fprintf(stderr, "%s\n", s);
   return uw_unit_v;
 }
 
diff --git a/tests/hog.ur b/tests/hog.ur
index 419d202d..cd666cbe 100644
--- a/tests/hog.ur
+++ b/tests/hog.ur
@@ -4,4 +4,6 @@ fun more n =
     else
         more (n-1) ^ more (n-1)
 
-fun main n = return <xml>{[more n]}</xml>
+fun main n =
+    debug "Let's give this a try....";
+    return <xml>{[more n]}</xml>
-- 
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