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SQLITE3_INTERRUPT(3)       Library Functions Manual       SQLITE3_INTERRUPT(3)

NAME
     sqlite3_interrupt - Interrupt A Long-Running Query

SYNOPSIS
     void
     sqlite3_interrupt(sqlite3*);

DESCRIPTION
     This function causes any pending database operation to abort and return
     at its earliest opportunity.  This routine is typically called in
     response to a user action such as pressing "Cancel" or Ctrl-C where the
     user wants a long query operation to halt immediately.

     It is safe to call this routine from a thread different from the thread
     that is currently running the database operation.  But it is not safe to
     call this routine with a database connection that is closed or might
     close before sqlite3_interrupt() returns.

     If an SQL operation is very nearly finished at the time when
     sqlite3_interrupt() is called, then it might not have an opportunity to
     be interrupted and might continue to completion.

     An SQL operation that is interrupted will return SQLITE_INTERRUPT.  If
     the interrupted SQL operation is an INSERT, UPDATE, or DELETE that is
     inside an explicit transaction, then the entire transaction will be
     rolled back automatically.

     The sqlite3_interrupt(D) call is in effect until all currently running
     SQL statements on database connection D complete.  Any new SQL statements
     that are started after the sqlite3_interrupt() call and before the
     running statements reaches zero are interrupted as if they had been
     running prior to the sqlite3_interrupt() call.  New SQL statements that
     are started after the running statement count reaches zero are not
     effected by the sqlite3_interrupt().  A call to sqlite3_interrupt(D) that
     occurs when there are no running SQL statements is a no-op and has no
     effect on SQL statements that are started after the sqlite3_interrupt()
     call returns.

     If the database connection closes while sqlite3_interrupt() is running
     then bad things will likely happen.

SEE ALSO
     sqlite3(3), sqlite3_interrupt(3), SQLITE_OK(3)

NetBSD 8.0                      March 11, 2017                      NetBSD 8.0