pike.git / lib / modules / Sql.pmod / pgsql_util.pmod

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pike.git/lib/modules/Sql.pmod/pgsql_util.pmod:28:   #define PURGED 7   // If this is extended, change the type of _state      #define NOERROR 0 // Error states networkparser   #define PROTOCOLERROR 1   #define PROTOCOLUNSUPPORTED 2      #define LOSTERROR "Database connection lost"      //! The instance of the pgsql dedicated backend. - final Pike.Backend local_backend = Pike.SmallBackend(); + final Pike.Backend local_backend;    -  + private Pike.Backend cb_backend;   private Thread.Mutex backendmux = Thread.Mutex();   private Thread.ResourceCount clientsregistered = Thread.ResourceCount();      constant emptyarray = ({});   constant describenodata    = (["datarowdesc":emptyarray, "datarowtypes":emptyarray,    "datatypeoid":emptyarray]);   private constant censoroptions = (<"use_ssl", "force_ssl",    "cache_autoprepared_statements", "reconnect", "text_query", "is_superuser",    "server_encoding", "server_version", "integer_datetimes",
pike.git/lib/modules/Sql.pmod/pgsql_util.pmod:89:    * not be able to deliver results belonging to other parallel queries    * running on the same filedescriptor.    *    * However, considering that the current heuristic increases query-speed    * in the majority of the real-world cases, it would be considered a good    * tradeoff.    */   private Regexp execfetchlimit    = iregexp("^\a*((UPDA|DELE)TE|INSERT)\a|\aLIMIT\a+[1-9][; \t\f\r\n]*$");    + private void default_backend_runs() { // Runs as soon as the +  cb_backend = Pike.DefaultBackend; // DefaultBackend has started + } +  + private void create() { +  // Run callbacks from our local_backend until DefaultBackend has started +  cb_backend = local_backend = Pike.SmallBackend(); +  call_out(default_backend_runs, 0); + } +    private Regexp iregexp(string expr) {    Stdio.Buffer ret = Stdio.Buffer();    foreach (expr; ; int c)    if (c >= 'A' && c <= 'Z')    ret->add('[', c, c + 'a' - 'A', ']');    else if (c == '\a') // Replace with generic whitespace    ret->add("[ \t\f\r\n]");    else    ret->add_int8(c);    return Regexp(ret->read());
pike.git/lib/modules/Sql.pmod/pgsql_util.pmod:174:    case VARCHAROID:    case CTIDOID:    case UUIDOID:    return 1; //binary    }    return 0; // text   }      private inline mixed callout(function(mixed ...:void) f,    float|int delay, mixed ... args) { -  return local_backend->call_out(f, delay, @args); +  return cb_backend->call_out(f, delay, @args);   }      // Some pgsql utility functions      class bufcon {    inherit Stdio.Buffer;    private Thread.ResourceCountKey dirty;      #ifdef PG_DEBUGRACE    final bufcon `chain() {
pike.git/lib/modules/Sql.pmod/pgsql_util.pmod:1252:    if (!fetchlimit) {    if (transtype != NOTRANS)    pgsqlsess.intransaction = transtype == TRANSBEGIN;    flushmode = _closeportal(plugbuffer) == SYNCSEND    || transtype == TRANSEND ? SYNCSEND : FLUSHSEND;    } else    inflight += fetchlimit, flushmode = FLUSHSEND;    plugbuffer->sendcmd(flushmode, this);    }    +  inline private array setuptimeout() { +  return local_backend->call_out(gottimeout, timeout); +  } +     //! @returns    //! One result row at a time.    //!    //! When using COPY FROM STDOUT, this method returns one row at a time    //! as a single string containing the entire row.    //!    //! @seealso    //! @[eof()], @[send_row()]    /*semi*/final array(mixed) fetch_row() {    int|array datarow;    if (arrayp(datarow = datarows->try_read()))    return datarow;    if (!eoffound) {    if (!datarow) {    PD("%O Block for datarow\n", _portalname); -  array cid = callout(gottimeout, timeout); +  array cid = setuptimeout();    PT(datarow = datarows->read());    local_backend->remove_call_out(cid);    if (arrayp(datarow))    return datarow;    }    eoffound = 1;    datarows->write(1); // Signal EOF for other threads    }    trydelayederror();    return 0;
pike.git/lib/modules/Sql.pmod/pgsql_util.pmod:1293:    //! When using COPY FROM STDOUT, this method returns one row at a time    //! as a single string containing the entire row.    //!    //! @seealso    //! @[eof()], @[fetch_row()]    /*semi*/final array(array(mixed)) fetch_row_array() {    if (eoffound)    return 0;    array(array|int) datarow = datarows->try_read_array();    if (!sizeof(datarow)) { -  array cid = callout(gottimeout, timeout); +  array cid = setuptimeout();    PT(datarow = datarows->read_array());    local_backend->remove_call_out(cid);    }    if (arrayp(datarow[-1]))    return datarow;    trydelayederror();    eoffound = 1;    datarows->write(1); // Signal EOF for other threads    return (datarow = datarow[..<1]);    }
pike.git/lib/modules/Sql.pmod/pgsql_util.pmod:1333:    cs->sendcmd(SENDOUT);    } else    _releasesession();    }       private void run_result_cb(    function(sql_result, array(mixed), mixed ...:void) callback,    array(mixed) args) {    int|array datarow;    for (;;) { -  array cid = callout(gottimeout, timeout); +  array cid = setuptimeout();    PT(datarow = datarows->read());    local_backend->remove_call_out(cid);    if (!arrayp(datarow))    break;    callout(callback, 0, this, datarow, @args);    }    eoffound = 1;    callout(callback, 0, this, 0, @args);    }   
pike.git/lib/modules/Sql.pmod/pgsql_util.pmod:1362:    mixed ... args) {    if (callback)    Thread.Thread(run_result_cb, callback, args);    }       private void run_result_array_cb(    function(sql_result, array(array(mixed)), mixed ...:void) callback,    array(mixed) args) {    array(array|int) datarow;    for (;;) { -  array cid = callout(gottimeout, timeout); +  array cid = setuptimeout();    PT(datarow = datarows->read_array());    local_backend->remove_call_out(cid);    if (!datarow || !arrayp(datarow[-1]))    break;    callout(callback, 0, this, datarow, @args);    }    eoffound = 1;    if (sizeof(datarow)>1)    callout(callback, 0, this, datarow = datarow[..<1], @args);    callout(callback, 0, this, 0, @args);