From: drh <drh@noemail.net>
Date: Fri, 2 Nov 2007 12:53:03 +0000 (+0000)
Subject: Add the ".timer" command to the CLI. (CVS 4522)
X-Git-Tag: version-3.6.10~1655
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=3b1a9881e7b9733f8128cbd847974a778b128788;p=thirdparty%2Fsqlite.git

Add the ".timer" command to the CLI. (CVS 4522)

FossilOrigin-Name: 56680360d3b14a66a077ebb735f4594ed524a4bb
---

diff --git a/manifest b/manifest
index 7dca3b02ff..6f4a61ee8b 100644
--- a/manifest
+++ b/manifest
@@ -1,5 +1,5 @@
-C Fix\sbuilding\sof\ssqlite3_analyzer\son\sMac.\s(CVS\s4521)
-D 2007-11-02T12:52:40
+C Add\sthe\s".timer"\scommand\sto\sthe\sCLI.\s(CVS\s4522)
+D 2007-11-02T12:53:04
 F Makefile.in 30c7e3ba426ddb253b8ef037d1873425da6009a8
 F Makefile.linux-gcc 65241babba6faf1152bf86574477baab19190499
 F README 9c4e2d6706bdcc3efdd773ce752a8cdab4f90028
@@ -130,7 +130,7 @@ F src/printf.c 96c8d55315a13fc53cb3754cb15046f3ff891ea2
 F src/random.c 4a22746501bf36b0a088c66e38dde5daba6a35da
 F src/select.c 4706a6115da1bdc09a2be5991168a6cc2c0df267
 F src/server.c 087b92a39d883e3fa113cae259d64e4c7438bc96
-F src/shell.c 82089379833e361ba8a2ae65316a2173785300c0
+F src/shell.c 0b9dd90afc34f28b8786638155d32f6248d0bf0a
 F src/sqlite.h.in 430a26215c164a2d4236dcbce4730a704b455271
 F src/sqlite3ext.h a93f59cdee3638dc0c9c086f80df743a4e68c3cb
 F src/sqliteInt.h 7fd5cfa357d7aefe22cd2bcdfabcca4e7d5ab5b2
@@ -584,7 +584,7 @@ F www/tclsqlite.tcl 8be95ee6dba05eabcd27a9d91331c803f2ce2130
 F www/vdbe.tcl 87a31ace769f20d3627a64fa1fade7fed47b90d0
 F www/version3.tcl 890248cf7b70e60c383b0e84d77d5132b3ead42b
 F www/whentouse.tcl fc46eae081251c3c181bd79c5faef8195d7991a5
-P 6340ca5eee3d398a9ef4f37a442efad37c9bf547
-R 0015f0586bb0a17a8ebee567349ffb1c
+P a616b6cb646a35a68bebc7d013c13185a9a6f47d
+R 3c475471a85720fe0d75e54f60c99bbc
 U drh
-Z 8e366ad6caa4aac98afe5c1c8f0199c2
+Z c5d9d02a9879c0e073ce1cae0bcfc7b6
diff --git a/manifest.uuid b/manifest.uuid
index 7ce006879e..06c0d80d25 100644
--- a/manifest.uuid
+++ b/manifest.uuid
@@ -1 +1 @@
-a616b6cb646a35a68bebc7d013c13185a9a6f47d
\ No newline at end of file
+56680360d3b14a66a077ebb735f4594ed524a4bb
\ No newline at end of file
diff --git a/src/shell.c b/src/shell.c
index bd5105e48c..7457c26b6d 100644
--- a/src/shell.c
+++ b/src/shell.c
@@ -12,7 +12,7 @@
 ** This file contains code to implement the "sqlite" command line
 ** utility for accessing SQLite databases.
 **
-** $Id: shell.c,v 1.167 2007/09/07 01:12:32 drh Exp $
+** $Id: shell.c,v 1.168 2007/11/02 12:53:04 drh Exp $
 */
 #include <stdlib.h>
 #include <string.h>
@@ -61,6 +61,53 @@
 extern int isatty();
 #endif
 
+#if !defined(_WIN32) && !defined(WIN32) && !defined(__OS2__)
+#include <sys/time.h>
+#include <sys/resource.h>
+
+/* Saved resource information for the beginning of an operation */
+static struct rusage sBegin;
+
+/* True if the timer is enabled */
+static int enableTimer = 0;
+
+/*
+** Begin timing an operation
+*/
+static void beginTimer(void){
+  if( enableTimer ){
+    getrusage(RUSAGE_SELF, &sBegin);
+  }
+}
+
+/* Return the difference of two time_structs in microseconds */
+static int timeDiff(struct timeval *pStart, struct timeval *pEnd){
+  return (pEnd->tv_usec - pStart->tv_usec) + 
+         1000000*(pEnd->tv_sec - pStart->tv_sec);
+}
+
+/*
+** Print the timing results.
+*/
+static void endTimer(void){
+  if( enableTimer ){
+    struct rusage sEnd;
+    getrusage(RUSAGE_SELF, &sEnd);
+    printf("CPU Time: user %f sys %f\n",
+       0.000001*timeDiff(&sBegin.ru_utime, &sEnd.ru_utime),
+       0.000001*timeDiff(&sBegin.ru_stime, &sEnd.ru_stime));
+  }
+}
+#define BEGIN_TIMER beginTimer()
+#define END_TIMER endTimer()
+#define HAS_TIMER 1
+#else
+#define BEGIN_TIMER 
+#define END_TIMER
+#define HAS_TIMER 0
+#endif
+
+
 /*
 ** If the following flag is set, then command execution stops
 ** at an error if we are not interactive.
@@ -884,6 +931,9 @@ static char zHelp[] =
   ".show                  Show the current values for various settings\n"
   ".tables ?PATTERN?      List names of tables matching a LIKE pattern\n"
   ".timeout MS            Try opening locked tables for MS milliseconds\n"
+#if HAS_TIMER
+  ".timer ON|OFF          Turn the CPU timer measurement on or off\n"
+#endif
   ".width NUM NUM ...     Set column widths for \"column\" mode\n"
 ;
 
@@ -1515,10 +1565,16 @@ static int do_meta_command(char *zLine, struct callback_data *p){
     sqlite3_free_table(azResult);
   }else
 
-  if( c=='t' && n>1 && strncmp(azArg[0], "timeout", n)==0 && nArg>=2 ){
+  if( c=='t' && n>4 && strncmp(azArg[0], "timeout", n)==0 && nArg>=2 ){
     open_db(p);
     sqlite3_busy_timeout(p->db, atoi(azArg[1]));
   }else
+  
+#if HAS_TIMER  
+  if( c=='t' && n>=5 && strncmp(azArg[0], "timer", n)==0 && nArg>1 ){
+    enableTimer = booleanValue(azArg[1]);
+  }else
+#endif
 
   if( c=='w' && strncmp(azArg[0], "width", n)==0 ){
     int j;
@@ -1528,6 +1584,7 @@ static int do_meta_command(char *zLine, struct callback_data *p){
     }
   }else
 
+
   {
     fprintf(stderr, "unknown command or invalid arguments: "
       " \"%s\". Enter \".help\" for help\n", azArg[0]);
@@ -1660,7 +1717,9 @@ static int process_input(struct callback_data *p, FILE *in){
                 && sqlite3_complete(zSql) ){
       p->cnt = 0;
       open_db(p);
+      BEGIN_TIMER;
       rc = sqlite3_exec(p->db, zSql, callback, p, &zErrMsg);
+      END_TIMER;
       if( rc || zErrMsg ){
         char zPrefix[100];
         if( in!=0 || !stdin_is_interactive ){