[t:4187] #4187 Failed assert in handlerton will call new DB_ENV->crash()...

[t:4187] #4187 Failed assert in handlerton will call new DB_ENV->crash() function which prints engine status to error log.

git-svn-id: file:///svn/mysql/tokudb-engine/tokudb-engine@37370 c7de825b-a66e-492c-adef-691d508d4ae1

storage/tokudb/ha_tokudb.cc

@@ -11,6 +11,7 @@ extern "C" {
 #include "misc.h"
 #endif
 }
+#include "hatoku_assert.h"
 
 static inline void *thd_data_get(THD *thd, int slot) {
     return thd->ha_data[slot].ha_ptr;

storage/tokudb/hatoku_assert.h

+#ifndef TOKU_ASSERT_H
+#define TOKU_ASSERT_H
+
+/* The purpose of this file is to define assert() for use by the handlerton.
+ * The intention is for a failed handlerton assert to invoke a failed assert
+ * in the fractal tree layer, which dumps engine status to the error log.
+ */
+
+void toku_hton_assert_fail(const char*/*expr_as_string*/,const char */*fun*/,const char*/*file*/,int/*line*/, int/*errno*/) __attribute__((__visibility__("default"))) __attribute__((__noreturn__));
+
+#define assert(expr)      ((expr)      ? (void)0 : toku_hton_assert_fail(#expr, __FUNCTION__, __FILE__, __LINE__, errno))
+
+#endif

storage/tokudb/hatoku_cmp.cc

@@ -5,6 +5,7 @@ extern "C" {
 }
 #include "hatoku_cmp.h"
 
+#include "hatoku_assert.h"
 
 #ifdef WORDS_BIGENDIAN
 #error "WORDS_BIGENDIAN not supported"

storage/tokudb/hatoku_hton.cc

@@ -24,6 +24,7 @@ extern "C" {
 #include "hatoku_hton.h"
 #include "hatoku_defines.h"
 #include "ha_tokudb.h"
+#include "hatoku_assert.h"
 
 #undef PACKAGE
 #undef VERSION
@@ -192,6 +193,25 @@ static ulonglong tokudb_lock_timeout;
 static ulong tokudb_cleaner_period;
 static ulong tokudb_cleaner_iterations;
 
+#define ASSERT_MSGLEN 1024
+
+void toku_hton_assert_fail(const char* expr_as_string, const char * fun, const char * file, int line, int caller_errno) {
+    char msg[ASSERT_MSGLEN];
+    if (db_env) {
+	snprintf(msg, ASSERT_MSGLEN, "Handlerton: %s ", expr_as_string);
+	db_env->crash(db_env, msg, fun, file, line,caller_errno);
+    }
+    else {
+	snprintf(msg, ASSERT_MSGLEN, "Handlerton assertion failed, no env, %s, %d, %s, %s (errno=%d)\n", file, line, fun, expr_as_string, caller_errno);
+	perror(msg);
+	fflush(stderr);
+    }
+    abort();
+}
+
+
+
+
 //my_bool tokudb_shared_data = FALSE;
 static u_int32_t tokudb_init_flags = 
     DB_CREATE | DB_THREAD | DB_PRIVATE |