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Add the SQLITE_MAX_WORKER_THREADS compile time option. And the SQLITE_CONFIG_WORKER_THREADS sqlite3_config() switch.

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FossilOrigin-Name: 2774710df8cd2bfaca49888c69f1b01c0ddadf9a
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dan
2014-03-31 19:57:34 +00:00
parent 853c4a7621
commit b3f56fdb69
8 changed files with 90 additions and 42 deletions
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11
src/sqlite.h.in
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@@ -1715,6 +1715,16 @@ struct sqlite3_mem_methods {
** SQLITE_CONFIG_WIN32_HEAPSIZE takes a 32-bit unsigned integer value
** that specifies the maximum size of the created heap.
** </dl>
**
** [[SQLITE_CONFIG_WORKER_THREADS]]
** <dt>SQLITE_CONFIG_WORKER_THREADS
** <dd>^SQLITE_CONFIG_WORKER_THREADS takes a single argument of type int.
** It is used to set the number of background worker threads that may be
** launched when sorting large amounts of data. A value of 0 means launch
** no background threads at all. The maximum number of background threads
** allowed is configured at build-time by the SQLITE_MAX_WORKER_THREADS
** pre-processor option.
** </dl>
*/
#define SQLITE_CONFIG_SINGLETHREAD 1 /* nil */
#define SQLITE_CONFIG_MULTITHREAD 2 /* nil */
@@ -1739,6 +1749,7 @@ struct sqlite3_mem_methods {
#define SQLITE_CONFIG_SQLLOG 21 /* xSqllog, void* */
#define SQLITE_CONFIG_MMAP_SIZE 22 /* sqlite3_int64, sqlite3_int64 */
#define SQLITE_CONFIG_WIN32_HEAPSIZE 23 /* int nByte */
#define SQLITE_CONFIG_WORKER_THREADS 24 /* int nWorker */
/*
** CAPI3REF: Database Connection Configuration Options