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Overview
| Comment: | Fix a memory leak in the parser that can occur following a malloc failure. (CVS 4071) |
|---|---|
| Downloads: | Tarball | ZIP archive | SQL archive |
| Timelines: | family | ancestors | descendants | both | trunk |
| Files: | files | file ages | folders |
| SHA1: |
d0b6e9a07e99cc1a7d7f61877918c9a2 |
| User & Date: | drh 2007-06-15 17:03:14 |
Context
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2007-06-15
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| 17:04 | Fix typo in change comments for 3.4.0. Ticket #2416 (CVS 4072) check-in: 1f6f0330 user: drh tags: trunk | |
| 17:03 | Fix a memory leak in the parser that can occur following a malloc failure. (CVS 4071) check-in: d0b6e9a0 user: drh tags: trunk | |
| 16:37 | Fix an obscure memory leak in the SQL compiler.. (CVS 4070) check-in: d4ab9428 user: danielk1977 tags: trunk | |
Changes
Changes to src/parse.y.
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** ************************************************************************* ** This file contains SQLite's grammar for SQL. Process this file ** using the lemon parser generator to generate C code that runs ** the parser. Lemon will also generate a header file containing ** numeric codes for all of the tokens. ** ** @(#) $Id: parse.y,v 1.229 2007/05/30 10:36:47 danielk1977 Exp $ */ // All token codes are small integers with #defines that begin with "TK_" %token_prefix TK_ // The type of the data attached to each token is Token. This is also the // default type for non-terminals. ................................................................................ select(A) ::= oneselect(X). {A = X;} %ifndef SQLITE_OMIT_COMPOUND_SELECT select(A) ::= select(X) multiselect_op(Y) oneselect(Z). { if( Z ){ Z->op = Y; Z->pPrior = X; } A = Z; } %type multiselect_op {int} multiselect_op(A) ::= UNION(OP). {A = @OP;} multiselect_op(A) ::= UNION ALL. {A = TK_ALL;} multiselect_op(A) ::= EXCEPT|INTERSECT(OP). {A = @OP;} |
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** ************************************************************************* ** This file contains SQLite's grammar for SQL. Process this file ** using the lemon parser generator to generate C code that runs ** the parser. Lemon will also generate a header file containing ** numeric codes for all of the tokens. ** ** @(#) $Id: parse.y,v 1.230 2007/06/15 17:03:14 drh Exp $ */ // All token codes are small integers with #defines that begin with "TK_" %token_prefix TK_ // The type of the data attached to each token is Token. This is also the // default type for non-terminals. ................................................................................ select(A) ::= oneselect(X). {A = X;} %ifndef SQLITE_OMIT_COMPOUND_SELECT select(A) ::= select(X) multiselect_op(Y) oneselect(Z). { if( Z ){ Z->op = Y; Z->pPrior = X; }else{ sqlite3SelectDelete(X); } A = Z; } %type multiselect_op {int} multiselect_op(A) ::= UNION(OP). {A = @OP;} multiselect_op(A) ::= UNION ALL. {A = TK_ALL;} multiselect_op(A) ::= EXCEPT|INTERSECT(OP). {A = @OP;} |
Changes to test/fuzz_malloc.test.
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # # This file tests malloc failures in concert with fuzzy SQL generation. # # $Id: fuzz_malloc.test,v 1.3 2007/06/15 13:57:20 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Only run these tests if memory debugging is turned on. # if {[info command sqlite_malloc_stat]==""} { puts "Skipping fuzz_malloc tests: not compiled with -DSQLITE_MEMDEBUG=1" finish_test return } source $testdir/fuzz_common.tcl source $testdir/malloc_common.tcl set ::REPEATS 20 # # Usage: do_fuzzy_malloc_test <testname> ?<options>? # # -template # -sqlprep # -repeats ................................................................................ sqlite_malloc_fail 0 db close file delete test.db test.db-journal sqlite3 db test.db set ::prep $::fuzzyopts(-sqlprep) execsql $::prep for {set ii 0} {$ii < $::fuzzyopts(-repeats)} {incr ii} { set ::sql [subst $::fuzzyopts(-template)] foreach {rc res} [catchsql "$::sql"] {} if {$rc==0} { do_malloc_test $testname-$ii -sqlbody $::sql -sqlprep $::prep } else { incr ii -1 } |
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# May you find forgiveness for yourself and forgive others. # May you share freely, never taking more than you give. # #*********************************************************************** # # This file tests malloc failures in concert with fuzzy SQL generation. # # $Id: fuzz_malloc.test,v 1.4 2007/06/15 17:03:15 drh Exp $ set testdir [file dirname $argv0] source $testdir/tester.tcl # Only run these tests if memory debugging is turned on. # if {[info command sqlite_malloc_stat]==""} { puts "Skipping fuzz_malloc tests: not compiled with -DSQLITE_MEMDEBUG=1" finish_test return } source $testdir/fuzz_common.tcl source $testdir/malloc_common.tcl set ::REPEATS 40 # # Usage: do_fuzzy_malloc_test <testname> ?<options>? # # -template # -sqlprep # -repeats ................................................................................ sqlite_malloc_fail 0 db close file delete test.db test.db-journal sqlite3 db test.db set ::prep $::fuzzyopts(-sqlprep) execsql $::prep set jj 0 for {set ii 0} {$ii < $::fuzzyopts(-repeats)} {incr ii} { expr srand($jj) incr jj set ::sql [subst $::fuzzyopts(-template)] foreach {rc res} [catchsql "$::sql"] {} if {$rc==0} { do_malloc_test $testname-$ii -sqlbody $::sql -sqlprep $::prep } else { incr ii -1 } |