Add the -mmap option to the command-line shell, for setting the default

mmap_limit.

FossilOrigin-Name: fc30d06c94c8212abb0477fb4cec4520d05bea34

manifest

@@ -1,5 +1,5 @@
-C Fix\sthe\sunix\sdriver\sto\scheck\sdefined(_BSD_SOURCE)\srather\sthan\sjust\sthe\splain\n_BSD_SOURCE\smacro.\s\sThis\sfixes\sthe\sbuild\sfor\sOpenBSD.
-D 2013-04-03T00:42:01.544
+C Add\sthe\s-mmap\soption\sto\sthe\scommand-line\sshell,\sfor\ssetting\sthe\sdefault\nmmap_limit.
+D 2013-04-03T01:26:54.789
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in df3e48659d80e1b7765785d8d66c86b320f72cc7
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -175,7 +175,7 @@ F src/random.c cd4a67b3953b88019f8cd4ccd81394a8ddfaba50
 F src/resolve.c 9079da7d59aed2bb14ec8315bc7f720dd85b5b65
 F src/rowset.c 64655f1a627c9c212d9ab497899e7424a34222e0
 F src/select.c 01540bcd3df3c8f1187158e77986028b1c667258
-F src/shell.c 7c41bfcd9e5bf9d96b9215f79b03a5b2b44a3bca
+F src/shell.c 319b7791cee6c763b60fde1b590bfaf62613cf37
 F src/sqlite.h.in 42c69ea00dfcce84394d6ce0d8dac7bb3d2ecff2
 F src/sqlite3.rc fea433eb0a59f4c9393c8e6d76a6e2596b1fe0c0
 F src/sqlite3ext.h 7183ab832e23db0f934494f16928da127a571d75
@@ -1042,7 +1042,7 @@ F tool/vdbe-compress.tcl f12c884766bd14277f4fcedcae07078011717381
 F tool/warnings-clang.sh f6aa929dc20ef1f856af04a730772f59283631d4
 F tool/warnings.sh fbc018d67fd7395f440c28f33ef0f94420226381
 F tool/win/sqlite.vsix 97894c2790eda7b5bce3cc79cb2a8ec2fde9b3ac
-P b29cda03fe4e8d8f5b5acbbea2d69f284a2bdf23
-R 12d119a8bfdd7260b7f76958004bb415
+P 1dd42ef4144ee08fb4ee1676d934a56a0e34bac2
+R 414201a51e65d2b5d08b22317803af41
 U drh
-Z 8724856398770e48d9cea9c9c7fa6257
+Z ee0a75b1373c6c61317486123f3b4064

manifest.uuid

@@ -1 +1 @@
-1dd42ef4144ee08fb4ee1676d934a56a0e34bac2
+fc30d06c94c8212abb0477fb4cec4520d05bea34

src/shell.c

@@ -1552,6 +1552,43 @@ static int booleanValue(char *zArg){
   return 0;
 }
 
+/*
+** Interpret zArg as an integer value, possibly with suffixes.
+*/
+static sqlite3_int64 integerValue(const char *zArg){
+  sqlite3_int64 v = 0;
+  static const struct { char *zSuffix; int iMult; } aMult[] = {
+    { "KiB", 1024 },
+    { "MiB", 1024*1024 },
+    { "GiB", 1024*1024*1024 },
+    { "KB",  1000 },
+    { "MB",  1000000 },
+    { "GB",  1000000000 },
+    { "K",   1000 },
+    { "M",   1000000 },
+    { "G",   1000000000 },
+  };
+  int i;
+  int isNeg = 0;
+  if( zArg[0]=='-' ){
+    isNeg = 1;
+    zArg++;
+  }else if( zArg[0]=='+' ){
+    zArg++;
+  }
+  while( isdigit(zArg[0]) ){
+    v = v*10 + zArg[0] - '0';
+    zArg++;
+  }
+  for(i=0; i<sizeof(aMult)/sizeof(aMult[0]); i++){
+    if( sqlite3_stricmp(aMult[i].zSuffix, zArg)==0 ){
+      v *= aMult[i].iMult;
+      break;
+    }
+  }
+  return isNeg? -v : v;
+}
+
 /*
 ** Close an output file, assuming it is not stderr or stdout
 */
@@ -2469,7 +2506,7 @@ static int do_meta_command(char *zLine, struct callback_data *p){
         /* sqlite3_test_control(int, uint) */
         case SQLITE_TESTCTRL_PENDING_BYTE:        
           if( nArg==3 ){
-            unsigned int opt = (unsigned int)atoi(azArg[2]);        
+            unsigned int opt = (unsigned int)integerValue(azArg[2]);        
             rc = sqlite3_test_control(testctrl, opt);
             printf("%d (0x%08x)\n", rc, rc);
           } else {
@@ -2561,7 +2598,7 @@ static int do_meta_command(char *zLine, struct callback_data *p){
 #if defined(SQLITE_DEBUG) && defined(SQLITE_ENABLE_WHERETRACE)
   if( c=='w' && strncmp(azArg[0], "wheretrace", n)==0 ){
     extern int sqlite3WhereTrace;
-    sqlite3WhereTrace = atoi(azArg[1]);
+    sqlite3WhereTrace = booleanValue(azArg[1]);
   }else
 #endif
 
@@ -2882,6 +2919,7 @@ static const char zOptions[] =
   "   -interactive         force interactive I/O\n"
   "   -line                set output mode to 'line'\n"
   "   -list                set output mode to 'list'\n"
+  "   -mmap N              default mmap size set to N\n"
 #ifdef SQLITE_ENABLE_MULTIPLEX
   "   -multiplex           enable the multiplexor VFS\n"
 #endif
@@ -3001,12 +3039,7 @@ int main(int argc, char **argv){
       sqlite3_int64 szHeap;
 
       zSize = cmdline_option_value(argc, argv, ++i);
-      szHeap = atoi(zSize);
-      for(j=0; (c = zSize[j])!=0; j++){
-        if( c=='M' ){ szHeap *= 1000000; break; }
-        if( c=='K' ){ szHeap *= 1000; break; }
-        if( c=='G' ){ szHeap *= 1000000000; break; }
-      }
+      szHeap = integerValue(zSize);
       if( szHeap>0x7fff0000 ) szHeap = 0x7fff0000;
       sqlite3_config(SQLITE_CONFIG_HEAP, malloc((int)szHeap), (int)szHeap, 64);
 #endif
@@ -3026,6 +3059,8 @@ int main(int argc, char **argv){
       extern int sqlite3_multiple_initialize(const char*,int);
       sqlite3_multiplex_initialize(0, 1);
 #endif
+    }else if( strcmp(z,"-mmap")==0 ){
+      sqlite3_config(SQLITE_CONFIG_MMAP_LIMIT, integerValue(cmdline_option_value(argc,argv,++i)));
     }else if( strcmp(z,"-vfs")==0 ){
       sqlite3_vfs *pVfs = sqlite3_vfs_find(cmdline_option_value(argc,argv,++i));
       if( pVfs ){
@@ -3111,6 +3146,8 @@ int main(int argc, char **argv){
       stdin_is_interactive = 0;
     }else if( strcmp(z,"-heap")==0 ){
       i++;
+    }else if( strcmp(z,"-mmap")==0 ){
+      i++;
     }else if( strcmp(z,"-vfs")==0 ){
       i++;
 #ifdef SQLITE_ENABLE_VFSTRACE