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2ee4c987e6
- New functions (each accepts a pgsql $connection resource): . pg_connect_poll . pg_socket . pg_consume_input . pg_flush - Modified functions The following functions now additionally return zero if the underlying socket is set to non-blocking mode and the send operation does not complete immediately. Previously these functions returned only boolean TRUE/FALSE and blocked execution while polling until all data was sent: . pg_send_execute . pg_send_prepare . pg_send_query . pg_send_query_params - New constants Used with pg_connect() to initiate an asynchronous connection attempt: . PGSQL_CONNECT_ASYNC Used with pg_connection_status() to determine the current state of an async connection attempt: . PGSQL_CONNECTION_STARTED . PGSQL_CONNECTION_MADE . PGSQL_CONNECTION_AWAITING_RESPONSE . PGSQL_CONNECTION_AUTH_OK . PGSQL_CONNECTION_SSL_STARTUP . PGSQL_CONNECTION_SETENV Used with pg_connect_poll() to determine the result of an async connection attempt: . PGSQL_POLLING_FAILED . PGSQL_POLLING_READING . PGSQL_POLLING_WRITING . PGSQL_POLLING_OK . PGSQL_POLLING_ACTIVE - Polling via returned pg_socket() stream pg_socket() returns a read-only socket stream that may be cast to a file descriptor for select (and similar) polling operations. Blocking behavior of the pgsql connection socket can be controlled by calling stream_set_blocking() on the stream returned by pg_socket().
39 lines
992 B
PHP
39 lines
992 B
PHP
<?php
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function nb_is_readable($stream, $timeout = 1) {
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$r = [$stream]; $w = []; $e = [];
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return (bool) stream_select($r, $w, $e, $timeout, 0);
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};
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function nb_is_writable($stream, $timeout = 1) {
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$r = []; $w = [$stream]; $e = [];
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return (bool) stream_select($r, $w, $e, $timeout, 0);
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};
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function nb_flush($db, $db_socket) {
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while (TRUE) {
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if (! nb_is_writable($db_socket)) {
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continue;
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}
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$flush = pg_flush($db);
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if ($flush === TRUE) {
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break; // All data flushed
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} elseif ($flush === FALSE) {
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echo "pg_flush() error\n";
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break;
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}
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}
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};
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function nb_consume($db, $db_socket) {
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while (TRUE) {
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if (!nb_is_readable($db_socket)) {
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continue;
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} elseif (!pg_consume_input($db)) {
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echo "pg_consume_input() error\n";
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break;
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} elseif (!pg_connection_busy($db)) {
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break; // All data consumed
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}
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}
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};
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