[evolution-data-server] Bug 736116 - Add EBSQL_DEBUG=timing

[David Woodhouse <dwmw2 src gnome org>]

commit 67f707e9b61b460f223795b8e7505ee6da617067
Author: David Woodhouse <David Woodhouse intel com>
Date:   Mon Sep 8 14:56:20 2014 +0100

    Bug 736116 - Add EBSQL_DEBUG=timing

 addressbook/libedata-book/e-book-sqlite.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)
---
diff --git a/addressbook/libedata-book/e-book-sqlite.c b/addressbook/libedata-book/e-book-sqlite.c
index 61801c8..f0968c1 100644
--- a/addressbook/libedata-book/e-book-sqlite.c
+++ b/addressbook/libedata-book/e-book-sqlite.c
@@ -87,6 +87,7 @@ typedef enum {
        EBSQL_DEBUG_REF_COUNTS    = 1 << 9,  /* Print about shared EBookSqlite instances, print when 
finalized */
        EBSQL_DEBUG_CANCEL        = 1 << 10, /* Print information about GCancellable cancellations */
        EBSQL_DEBUG_PREFLIGHT     = 1 << 11, /* Print information about query preflighting */
+       EBSQL_DEBUG_TIMING        = 1 << 12, /* Print information about timing */
 } EbSqlDebugFlag;
 
 static const GDebugKey ebsql_debug_keys[] = {
@@ -102,6 +103,7 @@ static const GDebugKey ebsql_debug_keys[] = {
        { "ref-counts",     EBSQL_DEBUG_REF_COUNTS   },
        { "cancel",         EBSQL_DEBUG_CANCEL       },
        { "preflight",      EBSQL_DEBUG_PREFLIGHT    },
+       { "timing",         EBSQL_DEBUG_TIMING       },
 };
 
 static EbSqlDebugFlag ebsql_debug_flags = 0;
@@ -1096,6 +1098,7 @@ ebsql_exec (EBookSqlite *ebsql,
        gboolean had_cancel;
        gchar *errmsg = NULL;
        gint ret = -1;
+       gint64 t1 = 0, t2;
 
        /* Debug output for statements and query plans */
        ebsql_exec_maybe_debug (ebsql, stmt);
@@ -1111,6 +1114,10 @@ ebsql_exec (EBookSqlite *ebsql,
                had_cancel = FALSE;
        }
 
+       if ((ebsql_debug_flags & EBSQL_DEBUG_TIMING) != 0 &&
+           strncmp (stmt, "EXPLAIN QUERY PLAN ", 19) != 0)
+               t1 = g_get_monotonic_time();
+
        ret = sqlite3_exec (ebsql->priv->db, stmt, callback, data, &errmsg);
 
        while (ret == SQLITE_BUSY || ret == SQLITE_LOCKED || ret == -1) {
@@ -1119,12 +1126,20 @@ ebsql_exec (EBookSqlite *ebsql,
                        errmsg = NULL;
                }
                g_thread_yield ();
+
+               if (t1)
+                       t1 = g_get_monotonic_time();
+
                ret = sqlite3_exec (ebsql->priv->db, stmt, callback, data, &errmsg);
        }
 
        if (!had_cancel)
                ebsql->priv->cancel = NULL;
 
+       if (t1) {
+               t2 = g_get_monotonic_time();
+               g_printerr ("TIME: %" G_GINT64_FORMAT " ms\n", (t2 - t1) / 1000);
+       }
        if (ret != SQLITE_OK) {
                EBSQL_SET_ERROR_FROM_SQLITE (error, ret, errmsg);
                sqlite3_free (errmsg);