ceph/src/jaegertracing/thrift/lib/c_glib/src/thrift/c_glib/transport/thrift_transport.c

   1 /*
   2  * Licensed to the Apache Software Foundation (ASF) under one
   3  * or more contributor license agreements. See the NOTICE file
   4  * distributed with this work for additional information
   5  * regarding copyright ownership. The ASF licenses this file
   6  * to you under the Apache License, Version 2.0 (the
   7  * "License"); you may not use this file except in compliance
   8  * with the License. You may obtain a copy of the License at
   9  *
  10  *   http://www.apache.org/licenses/LICENSE-2.0
  11  *
  12  * Unless required by applicable law or agreed to in writing,
  13  * software distributed under the License is distributed on an
  14  * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
  15  * KIND, either express or implied. See the License for the
  16  * specific language governing permissions and limitations
  17  * under the License.
  18  */
  19
  20 #include <thrift/c_glib/thrift.h>
  21 #include <thrift/c_glib/transport/thrift_transport.h>
  22
  23 /* define the GError domain string */
  24 #define THRIFT_TRANSPORT_ERROR_DOMAIN "thrift-transport-error-quark"
  25
  26 G_DEFINE_ABSTRACT_TYPE(ThriftTransport, thrift_transport, G_TYPE_OBJECT)
  27
  28 gboolean
  29 thrift_transport_is_open (ThriftTransport *transport)
  30 {
  31   return THRIFT_TRANSPORT_GET_CLASS (transport)->is_open (transport);
  32 }
  33
  34 gboolean
  35 thrift_transport_peek (ThriftTransport *transport, GError **error)
  36 {
  37   return THRIFT_TRANSPORT_GET_CLASS (transport)->peek (transport, error);
  38 }
  39
  40 gboolean
  41 thrift_transport_open (ThriftTransport *transport, GError **error)
  42 {
  43   return THRIFT_TRANSPORT_GET_CLASS (transport)->open (transport, error);
  44 }
  45
  46 gboolean
  47 thrift_transport_close (ThriftTransport *transport, GError **error)
  48 {
  49   return THRIFT_TRANSPORT_GET_CLASS (transport)->close (transport, error);
  50 }
  51
  52 gint32
  53 thrift_transport_read (ThriftTransport *transport, gpointer buf,
  54                        guint32 len, GError **error)
  55 {
  56   return THRIFT_TRANSPORT_GET_CLASS (transport)->read (transport, buf,
  57                                                        len, error);
  58 }
  59
  60 gboolean
  61 thrift_transport_read_end (ThriftTransport *transport, GError **error)
  62 {
  63   return THRIFT_TRANSPORT_GET_CLASS (transport)->read_end (transport,
  64                                                            error);
  65 }
  66
  67 gboolean
  68 thrift_transport_write (ThriftTransport *transport, const gpointer buf,
  69                         const guint32 len, GError **error)
  70 {
  71   return THRIFT_TRANSPORT_GET_CLASS (transport)->write (transport, buf,
  72                                                         len, error);
  73 }
  74
  75 gboolean
  76 thrift_transport_write_end (ThriftTransport *transport, GError **error)
  77 {
  78   return THRIFT_TRANSPORT_GET_CLASS (transport)->write_end (transport,
  79                                                             error);
  80 }
  81
  82 gboolean
  83 thrift_transport_flush (ThriftTransport *transport, GError **error)
  84 {
  85   return THRIFT_TRANSPORT_GET_CLASS (transport)->flush (transport, error);
  86 }
  87
  88 gint32
  89 thrift_transport_read_all (ThriftTransport *transport, gpointer buf,
  90                            guint32 len, GError **error)
  91 {
  92   return THRIFT_TRANSPORT_GET_CLASS (transport)->read_all (transport, buf,
  93                                                            len, error);
  94 }
  95
  96 /* by default, peek returns true if and only if the transport is open */
  97 static gboolean
  98 thrift_transport_real_peek (ThriftTransport *transport, GError **error)
  99 {
 100   THRIFT_UNUSED_VAR (error);
 101
 102   return THRIFT_TRANSPORT_GET_CLASS (transport)->is_open (transport);
 103 }
 104
 105 static gint32
 106 thrift_transport_real_read_all (ThriftTransport *transport, gpointer buf,
 107                                 guint32 len, GError **error)
 108 {
 109   ThriftTransportClass *ttc;
 110   guint32 have;
 111   gint32 ret;
 112   gint8 *bytes;
 113
 114   THRIFT_UNUSED_VAR (error);
 115
 116   ttc = THRIFT_TRANSPORT_GET_CLASS (transport);
 117   have = 0;
 118   ret = 0;
 119   bytes = (gint8*) buf;
 120
 121   while (have < len) {
 122     if ((ret = ttc->read (transport, (gpointer) (bytes + have), len - have,
 123                           error)) < 0) {
 124       return ret;
 125     }
 126     have += ret;
 127   }
 128
 129   return have;
 130 }
 131
 132 /* define the GError domain for Thrift transports */
 133 GQuark
 134 thrift_transport_error_quark (void)
 135 {
 136   return g_quark_from_static_string (THRIFT_TRANSPORT_ERROR_DOMAIN);
 137 }
 138
 139 /* class initializer for ThriftTransport */
 140 static void
 141 thrift_transport_class_init (ThriftTransportClass *cls)
 142 {
 143   /* set these as virtual methods to be implemented by a subclass */
 144   cls->is_open = thrift_transport_is_open;
 145   cls->open = thrift_transport_open;
 146   cls->close = thrift_transport_close;
 147   cls->read = thrift_transport_read;
 148   cls->read_end = thrift_transport_read_end;
 149   cls->write = thrift_transport_write;
 150   cls->write_end = thrift_transport_write_end;
 151   cls->flush = thrift_transport_flush;
 152
 153   /* provide a default implementation for the peek and read_all methods */
 154   cls->peek = thrift_transport_real_peek;
 155   cls->read_all = thrift_transport_real_read_all;
 156 }
 157
 158 static void
 159 thrift_transport_init (ThriftTransport *transport)
 160 {
 161   THRIFT_UNUSED_VAR (transport);
 162 }