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Comment:Clarification of what counts as using a database connection for restrictions on SQLITE_THREADSAFE=2.
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SHA1: 84df66d24bcdd725e6f2c65c47894b1a04dde20d
User & Date: drh 2012-05-30 00:46:18
Context
2012-05-30
14:25
Fix the "search" box so that it accepts upper and lower case search terms (with case folding) and OR and NEAR search and phrase searches. Exclude some of the aggregate documents from indexing. check-in: 26dedb8a9a user: drh tags: trunk
00:46
Clarification of what counts as using a database connection for restrictions on SQLITE_THREADSAFE=2. check-in: 84df66d24b user: drh tags: trunk
2012-05-29
01:06
Add a brief note to the R-Tree documentation to encourage applications to round contained-within query boxes outward slightly to account for round-off error in 64-to-32-bit floating point conversions. check-in: 1f473ab6ac user: drh tags: trunk
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  This option controls whether or not code is included in SQLite to
  enable it to operate safely in a multithreaded environment.  The
  default is SQLITE_THREADSAFE=1 which is safe for use in a multithreaded
  environment.  When compiled with SQLITE_THREADSAFE=0 all mutexing code
  is omitted and it is unsafe to use SQLite in a multithreaded program.
  When compiled with SQLITE_THREADSAFE=2, SQLite can be used in a multithreaded
  program so long as no two threads attempt to use the same

  [database connection] at the same time.

  To put it another way, SQLITE_THREADSAFE=1 sets the default
  [threading mode] to Serialized.  SQLITE_THREADSAFE=2 sets the default
  [threading mode] to Multi-threaded.  And SQLITE_THREADSAFE=0 sets the
  [threading mode] to Single-threaded.

  The value of SQLITE_THREADSAFE can be determined at run-time







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  This option controls whether or not code is included in SQLite to
  enable it to operate safely in a multithreaded environment.  The
  default is SQLITE_THREADSAFE=1 which is safe for use in a multithreaded
  environment.  When compiled with SQLITE_THREADSAFE=0 all mutexing code
  is omitted and it is unsafe to use SQLite in a multithreaded program.
  When compiled with SQLITE_THREADSAFE=2, SQLite can be used in a multithreaded
  program so long as no two threads attempt to use the same
  [database connection] (or any [prepared statements] derived from
  that database connection) at the same time.

  To put it another way, SQLITE_THREADSAFE=1 sets the default
  [threading mode] to Serialized.  SQLITE_THREADSAFE=2 sets the default
  [threading mode] to Multi-threaded.  And SQLITE_THREADSAFE=0 sets the
  [threading mode] to Single-threaded.

  The value of SQLITE_THREADSAFE can be determined at run-time