Add the "-heap" option to the command-line shell - to allocate a fixed heap

for use with SQLITE_ENABLE_MEMSYS5.

FossilOrigin-Name: 74fff692345fed4b247e2b34c1e63b4d50cddfd4

manifest

@@ -1,8 +1,8 @@
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-C Fix\sminor\stypos\sin\sthe\ssqlite3_backup\sdocumentation.
-D 2010-12-17T01:00:00
+C Add\sthe\s"-heap"\soption\sto\sthe\scommand-line\sshell\s-\sto\sallocate\sa\sfixed\sheap\nfor\suse\swith\sSQLITE_ENABLE_MEMSYS5.
+D 2010-12-17T14:03:02
 F Makefile.arm-wince-mingw32ce-gcc d6df77f1f48d690bd73162294bbba7f59507c72f
 F Makefile.in 4547616ad2286053af6ccccefa242dc925e49bf0
 F Makefile.linux-gcc 91d710bdc4998cb015f39edf3cb314ec4f4d7e23
@@ -178,7 +178,7 @@ F src/random.c cd4a67b3953b88019f8cd4ccd81394a8ddfaba50
 F src/resolve.c 1c0f32b64f8e3f555fe1f732f9d6f501a7f05706
 F src/rowset.c 69afa95a97c524ba6faf3805e717b5b7ae85a697
 F src/select.c 8a7ba246b0b4bb45df7fbc52681728a0e3deaaa7
-F src/shell.c ee5905fef7bf8dfceaf31ee32db92a250c5acab4
+F src/shell.c 9afa9bdd62142e254b4581a77b43080d3ffd4ef4
 F src/sqlite.h.in 83fed95ea6acbac51c48eba5bd93933f3795ee91
 F src/sqlite3ext.h c90bd5507099f62043832d73f6425d8d5c5da754
 F src/sqliteInt.h b96d5ddb8b419a2ed7cf69a7778b53872d73e8a7
@@ -897,14 +897,14 @@ F tool/speedtest2.tcl ee2149167303ba8e95af97873c575c3e0fab58ff
 F tool/speedtest8.c 2902c46588c40b55661e471d7a86e4dd71a18224
 F tool/speedtest8inst1.c 293327bc76823f473684d589a8160bde1f52c14e
 F tool/vdbe-compress.tcl d70ea6d8a19e3571d7ab8c9b75cba86d1173ff0f
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manifest.uuid

@@ -1 +1 @@
-df430be59d0766a34a94ab85fec9aa3c3baeb740
+74fff692345fed4b247e2b34c1e63b4d50cddfd4

src/shell.c

@@ -2542,6 +2542,7 @@ int main(int argc, char **argv){
 
   /* Do an initial pass through the command-line argument to locate
   ** the name of the database file, the name of the initialization file,
+  ** the size of the alternative malloc heap,
   ** and the first command to execute.
   */
   for(i=1; i<argc-1; i++){
@@ -2560,6 +2561,22 @@ int main(int argc, char **argv){
     */
     }else if( strcmp(argv[i],"-batch")==0 ){
       stdin_is_interactive = 0;
+    }else if( strcmp(argv[i],"-heap")==0 ){
+      int j, c;
+      const char *zSize;
+      sqlite3_int64 szHeap;
+
+      zSize = 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; }
+      }
+      if( szHeap>0x7fff0000 ) szHeap = 0x7fff0000;
+#if defined(SQLITE_ENABLE_MEMSYS3) || defined(SQLITE_ENABLE_MEMSYS5)
+      sqlite3_config(SQLITE_CONFIG_HEAP, malloc((int)szHeap), (int)szHeap, 64);
+#endif
     }
   }
   if( i<argc ){
@@ -2666,6 +2683,8 @@ int main(int argc, char **argv){
       stdin_is_interactive = 1;
     }else if( strcmp(z,"-batch")==0 ){
       stdin_is_interactive = 0;
+    }else if( strcmp(z,"-heap")==0 ){
+      i++;
     }else if( strcmp(z,"-help")==0 || strcmp(z, "--help")==0 ){
       usage(1);
     }else{