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Overview
Comment:Increase the number of database handles opened by test script oserror.test to provoke an "out of file-descriptors" error to 20000 (from 2000).
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SHA3-256: 3b00f73456c65dfc1827fdada9afb49245f9addfa684d5ae35e69a07f39164bf
User & Date: dan 2018-05-29 19:12:58.327
Context
2018-05-30
00:59
Fix a harmless compiler warning. (check-in: 8d02c7a6a0 user: drh tags: trunk)
00:54
Demonstration code on a possible technique for optimizing the use of IN operator on columns to the right of multicolumn indexes. If the OP_Noop generated where were really a new opcode that checked to see if there existed any entries in the index with a matching prefix, it might prevent unnecessary iterations of the IN operator. (check-in: 92f0fe155d user: drh tags: multikey-opt-idea)
2018-05-29
19:12
Increase the number of database handles opened by test script oserror.test to provoke an "out of file-descriptors" error to 20000 (from 2000). (check-in: 3b00f73456 user: dan tags: trunk)
16:37
Fix autoinc.test and resetdb.test so that they work with all permutations. (check-in: 89f56d6b0a user: dan tags: trunk)
Changes
Unified Diff Ignore Whitespace Patch
Changes to test/oserror.test.
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# a call to getcwd() may fail if there are no free file descriptors. So
# an error may be reported for either open() or getcwd() here.
#
if {![clang_sanitize_address]} {
  do_test 1.1.1 {
    set ::log [list]
    list [catch {
      for {set i 0} {$i < 2000} {incr i} { sqlite3 dbh_$i test.db -readonly 1 }
    } msg] $msg
  } {1 {unable to open database file}}
  do_test 1.1.2 {
    catch { for {set i 0} {$i < 2000} {incr i} { dbh_$i close } }
  } {1}
  do_re_test 1.1.3 { 
    lindex $::log 0 
  } {^os_unix.c:\d+: \(\d+\) (open|getcwd)\(.*test.db\) - }
}










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# a call to getcwd() may fail if there are no free file descriptors. So
# an error may be reported for either open() or getcwd() here.
#
if {![clang_sanitize_address]} {
  do_test 1.1.1 {
    set ::log [list]
    list [catch {
      for {set i 0} {$i < 20000} {incr i} { sqlite3 dbh_$i test.db -readonly 1 }
    } msg] $msg
  } {1 {unable to open database file}}
  do_test 1.1.2 {
    catch { for {set i 0} {$i < 20000} {incr i} { dbh_$i close } }
  } {1}
  do_re_test 1.1.3 { 
    lindex $::log 0 
  } {^os_unix.c:\d+: \(\d+\) (open|getcwd)\(.*test.db\) - }
}
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