From 21c9da762090af21365a70535b46374606e8355f Mon Sep 17 00:00:00 2001
From: zaxl <zaxl@ffa7fe5e-494d-0410-b361-a75ebd5db220>
Date: Tue, 28 Oct 2008 22:54:01 +0000
Subject: [PATCH] Add:core:Interface to redirect the console log to a file

git-svn-id: https://navit.svn.sourceforge.net/svnroot/navit/trunk@1601 ffa7fe5e-494d-0410-b361-a75ebd5db220
---
 navit/navit/debug.c | 31 +++++++++++++++++++++++++++++--
 navit/navit/debug.h |  2 ++
 navit/navit/start.c |  3 +++
 3 files changed, 34 insertions(+), 2 deletions(-)

diff --git a/navit/navit/debug.c b/navit/navit/debug.c
index d83d546..6bb5b2d 100644
--- a/navit/navit/debug.c
+++ b/navit/navit/debug.c
@@ -34,6 +34,8 @@ static int dummy;
 static GHashTable *debug_hash;
 static char *gdb_program;
 
+static FILE *debug_fp;
+
 static void sigsegv(int sig)
 {
 #if defined(_WIN32) || defined(__CEGCC__)
@@ -54,6 +56,7 @@ debug_init(const char *program_name)
 	gdb_program=program_name;
 	signal(SIGSEGV, sigsegv);
 	debug_hash=g_hash_table_new_full(g_str_hash, g_str_equal, g_free, NULL);
+	debug_fp = stderr;
 }
 
 
@@ -107,8 +110,9 @@ debug_vprintf(int level, const char *module, const int mlen, const char *functio
 	sprintf(buffer, "%s:%s", module, function);
 	if (debug_level_get(module) >= level || debug_level_get(buffer) >= level) {
 		if (prefix)
-			fprintf(stderr,"%s:",buffer);
-		vfprintf(stderr,fmt, ap);
+			fprintf(debug_fp,"%s:",buffer);
+		vfprintf(debug_fp,fmt, ap);
+		fflush(debug_fp);
 	}
 }
 
@@ -127,3 +131,26 @@ debug_assert_fail(char *module, const int mlen,const char *function, const int f
 	debug_printf(0,module,mlen,function,flen,1,"%s:%d assertion failed:%s\n", file, line, expr);
 	abort();
 }
+
+void
+debug_destroy(void)
+{
+	if (!debug_fp)
+		return;
+	if (debug_fp == stderr || debug_fp == stdout)
+		return;
+	fclose(debug_fp);
+	debug_fp = NULL;
+}
+
+void debug_set_logfile(const char *path)
+{
+	FILE *fp;
+	fp = fopen(path, "a");
+	if (fp) {
+		debug_destroy();
+		debug_fp = fp;
+		fprintf(debug_fp, "Navit log started\n");
+		fflush(debug_fp);
+	}
+}
diff --git a/navit/navit/debug.h b/navit/navit/debug.h
index 5a0317e..f9b520f 100644
--- a/navit/navit/debug.h
+++ b/navit/navit/debug.h
@@ -35,6 +35,8 @@ extern int debug_level;
 /* prototypes */
 struct attr;
 void debug_init(const char *program_name);
+void debug_destroy(void);
+void debug_set_logfile(const char *path);
 void debug_level_set(const char *name, int level);
 int debug_level_get(const char *name);
 struct debug *debug_new(struct attr *parent, struct attr **attrs);
diff --git a/navit/navit/start.c b/navit/navit/start.c
index 80eba43..621f708 100644
--- a/navit/navit/start.c
+++ b/navit/navit/start.c
@@ -84,6 +84,9 @@ int main(int argc, char **argv)
 	main_init(argv[0]);
 	main_init_nls();
 	debug_init(argv[0]);
+#ifdef __CEGCC__
+	debug_set_logfile("/Storage Card/navit.log");
+#endif
 	file_init();
 #ifndef USE_PLUGINS
 	extern void builtin_init(void);
-- 
2.7.4