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authorbertrand <Bertrand.Guiheneuf@aful.org>1999-09-17 06:26:03 +0800
committerBertrand Guiheneuf <bertrand@src.gnome.org>1999-09-17 06:26:03 +0800
commit63039bb99edd9f8c7aea9ef4ce8700d713b01354 (patch)
treedc00b13ddd4399787049b6fac9adce7b25da81c4 /camel
parentc6da2725e05030af92353147a37a5f559e5f3a42 (diff)
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New object. Operation queue. Meant to be used in non-blocking proxy
1999-09-17 bertrand <Bertrand.Guiheneuf@aful.org> * camel/camel-op-queue.h: * camel/camel-op-queue.c: New object. Operation queue. Meant to be used in non-blocking proxy objects. svn path=/trunk/; revision=1231
Diffstat (limited to 'camel')
-rw-r--r--camel/Makefile.am2
-rw-r--r--camel/camel-folder-pt-proxy.c39
-rw-r--r--camel/camel-op-queue.c89
-rw-r--r--camel/camel-op-queue.h61
4 files changed, 191 insertions, 0 deletions
diff --git a/camel/Makefile.am b/camel/Makefile.am
index d9f492bf35..322f096e76 100644
--- a/camel/Makefile.am
+++ b/camel/Makefile.am
@@ -25,6 +25,7 @@ libcamel_la_SOURCES = \
camel-mime-part.c \
camel-mime-part-utils.c \
camel-multipart.c \
+ camel-op-queue.c \
camel-provider.c \
camel-recipient.c \
camel-service.c \
@@ -57,6 +58,7 @@ libcamelinclude_HEADERS = \
camel-mime-part.h \
camel-mime-part-utils.h \
camel-multipart.h \
+ camel-op-queue.h \
camel-provider.h \
camel-recipient.h \
camel-service.h \
diff --git a/camel/camel-folder-pt-proxy.c b/camel/camel-folder-pt-proxy.c
index 1e7bf4ffa0..0d7bc3c957 100644
--- a/camel/camel-folder-pt-proxy.c
+++ b/camel/camel-folder-pt-proxy.c
@@ -20,6 +20,26 @@
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
* USA
*/
+
+/* FIXME :
+ *
+ * the current implementation lauches requests
+ * on the real folder without bothering on wether
+ * the global mutex (folder->mutex) is locked or
+ * not.
+ * This means that you could have 100 threads
+ * waiting for the mutex at the same time.
+ * This is not really a bug, more a nasty feature ;)
+ *
+ * This will be solved when the CORBA proxy is
+ * written, as we will need to queue the requests
+ * on the client side. The same queue mechanism
+ * will be used for the pthread proxy
+ *
+ */
+
+
+
#include <config.h>
#include "camel-folder-pt-proxy.h"
#include "camel-log.h"
@@ -154,6 +174,10 @@ _finalize (GtkObject *object)
}
+
+
+/* folder->init_with_store implementation */
+
typedef struct {
CamelFolder *folder;
CamelStore *parent_store;
@@ -168,6 +192,10 @@ _async_init_with_store (_InitStoreParam *param)
proxy_folder = CAMEL_FOLDER_PT_PROXY (folder);
real_folder = proxy_folder->real_folder;
+
+ /* we may block here but we are actually in a
+ * separate thread, so no problem
+ */
g_static_mutex_lock (&(proxy_folder->mutex));
CF_CLASS (real_folder)->init_with_store (real_folder, param->parent_store);
@@ -183,10 +211,16 @@ _init_with_store (CamelFolder *folder, CamelStore *parent_store)
_InitStoreParam *param;
pthread_t init_store_thread;
+ /* param will be freed in _async_init_with_store */
param = g_new (_InitStoreParam, 1);
param->folder = folder;
param->parent_store = parent_store;
+ /*
+ * call _async_init_with_store in a separate thread
+ * the thread may block on a mutex, but not the main
+ * thread.
+ */
pthread_create (&init_store_thread, NULL , (thread_call_func)_async_init_with_store, param);
}
@@ -194,6 +228,11 @@ _init_with_store (CamelFolder *folder, CamelStore *parent_store)
+/* folder->open implementation */
+typedef struct {
+ CamelFolder *folder;
+ CamelFolderOpenMode mode;
+} _openFolderParam;
static void
_open (CamelFolder *folder, CamelFolderOpenMode mode)
diff --git a/camel/camel-op-queue.c b/camel/camel-op-queue.c
new file mode 100644
index 0000000000..5549a40de1
--- /dev/null
+++ b/camel/camel-op-queue.c
@@ -0,0 +1,89 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ * Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@aful.org> .
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+#include "camel-op-queue.h"
+
+
+
+/**
+ * camel_op_queue_new: create a new operation queue
+ *
+ * Create a new operation queue.
+ *
+ * Return value: the newly allcated object
+ **/
+CamelOpQueue *
+camel_op_queue_new ()
+{
+ CamelOpQueue *op_queue;
+ op_queue = g_new (CamelOpQueue, 1);
+ op_queue->ops_tail = NULL;
+ op_queue->ops_head = NULL;
+
+}
+
+
+/**
+ * camel_op_queue_push_op: Add an operation to the queue
+ * @queue: queue object
+ * @op: operation to add
+ *
+ * Add an operation to an operation queue.
+ * The queue is a FIFO queue.
+ **/
+void
+camel_op_queue_push_op (CamelOpQueue *queue, CamelOp *op)
+{
+ GList *new_op;
+
+ g_assert (queue);
+
+ if (!queue->ops_tail) {
+ queue->ops_head = g_list_prepend (NULL, op);
+ queue->ops_tail = queue->ops_head;
+ } else
+ queue->ops_head = g_list_prepend (queue->ops_head, op);
+
+}
+
+
+/**
+ * camel_op_queue_pop_op: Pop the next operation pending in the queue
+ * @queue: queue object
+ *
+ * Pop the next operation pending in the queue.
+ *
+ * Return value:
+ **/
+CamelOp *
+camel_op_queue_pop_op (CamelOpQueue *queue)
+{
+ GList *op;
+
+ g_assert (queue);
+
+ op = queue->ops_tail;
+ queue->ops_tail = queue->ops_tail->prev;
+
+ return op;
+}
+
+
diff --git a/camel/camel-op-queue.h b/camel/camel-op-queue.h
new file mode 100644
index 0000000000..34ee8249a1
--- /dev/null
+++ b/camel/camel-op-queue.h
@@ -0,0 +1,61 @@
+/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
+
+/*
+ * Copyright (C) 1999 Bertrand Guiheneuf <Bertrand.Guiheneuf@aful.org> .
+ *
+ * This program is free software; you can redistribute it and/or
+ * modify it under the terms of the GNU General Public License as
+ * published by the Free Software Foundation; either version 2 of the
+ * License, or (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
+ * USA
+ */
+
+
+#ifndef CAMEL_OP_QUEUE_H
+#define CAMEL_OP_QUEUE_H 1
+
+
+#ifdef __cplusplus
+extern "C" {
+#pragma }
+#endif /* __cplusplus }*/
+
+#include <glib.h>
+
+typedef void (CamelOpFunc)(gpointer param);
+
+typedef struct {
+ CamelOpFunc *op_func;
+ gpointer param;
+
+} CamelOp;
+
+
+typedef struct
+{
+ GList *ops_head;
+ GList *ops_tail;
+ gint pending_ops;
+} CamelOpQueue;
+
+
+/* public methods */
+CamelOpQueue *camel_op_queue_new ();
+void camel_op_queue_push_op (CamelOpQueue *queue, CamelOp *op);
+CamelOp *camel_op_queue_pop_op (CamelOpQueue *queue);
+
+#ifdef __cplusplus
+}
+#endif /* __cplusplus */
+
+#endif /* CAMEL_OP_QUEUE_H */
+