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

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mmap_limit.

FossilOrigin-Name: fc30d06c94c8212abb0477fb4cec4520d05bea34
This commit is contained in:
drh
2013-04-03 01:26:54 +00:00
parent 85830a70c2
commit 7d9f3943ba
3 changed files with 52 additions and 15 deletions
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53
src/shell.c
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@@ -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