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authorVikas Gorur <vikas@zresearch.com>2009-02-18 17:36:07 +0530
committerVikas Gorur <vikas@zresearch.com>2009-02-18 17:36:07 +0530
commit77adf4cd648dce41f89469dd185deec6b6b53a0b (patch)
tree02e155a5753b398ee572b45793f889b538efab6b /libglusterfsclient/src/libglusterfsclient-internals.h
parentf3b2e6580e5663292ee113c741343c8a43ee133f (diff)
Added all files
Diffstat (limited to 'libglusterfsclient/src/libglusterfsclient-internals.h')
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diff --git a/libglusterfsclient/src/libglusterfsclient-internals.h b/libglusterfsclient/src/libglusterfsclient-internals.h
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+/*
+ Copyright (c) 2008 Z RESEARCH, Inc. <http://www.zresearch.com>
+ This file is part of GlusterFS.
+
+ GlusterFS 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 3 of the License,
+ or (at your option) any later version.
+
+ GlusterFS 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, see
+ <http://www.gnu.org/licenses/>.
+*/
+
+#ifndef __LIBGLUSTERFSCLIENT_INTERNALS_H
+#define __LIBGLUSTERFSCLIENT_INTERNALS_H
+
+#include <glusterfs.h>
+#include <logging.h>
+#include <inode.h>
+#include <pthread.h>
+#include <stack.h>
+#include <list.h>
+#include <signal.h>
+#include <call-stub.h>
+#include <sys/time.h>
+#include <sys/resource.h>
+#include <fd.h>
+
+typedef void (*sighandler_t) (int);
+typedef struct list_head list_head_t;
+
+typedef struct libglusterfs_client_ctx {
+ glusterfs_ctx_t gf_ctx;
+ inode_table_t *itable;
+ pthread_t reply_thread;
+ call_pool_t pool;
+ uint32_t counter;
+ time_t lookup_timeout;
+ time_t stat_timeout;
+}libglusterfs_client_ctx_t;
+
+typedef struct signal_handler {
+ int signo;
+ sighandler_t handler;
+ list_head_t next;
+}libgf_client_signal_handler_t ;
+
+typedef struct {
+ pthread_mutex_t lock;
+ pthread_cond_t reply_cond;
+ call_stub_t *reply_stub;
+ char complete;
+ union {
+ struct {
+ char is_revalidate;
+ loc_t *loc;
+ int32_t size;
+ } lookup;
+ }fop;
+}libgf_client_local_t;
+
+#define LIBGF_STACK_WIND_AND_WAIT(frame, rfn, obj, fn, params ...) \
+ do { \
+ STACK_WIND (frame, rfn, obj, fn, params); \
+ pthread_mutex_lock (&local->lock); \
+ { \
+ while (!local->complete) { \
+ pthread_cond_wait (&local->reply_cond, &local->lock); \
+ } \
+ } \
+ pthread_mutex_unlock (&local->lock); \
+ } while (0)
+
+
+
+#define LIBGF_CLIENT_SIGNAL(signal_handler_list, signo, handler) \
+ do { \
+ libgf_client_signal_handler_t *libgf_handler = CALLOC (1, sizeof (*libgf_handler)); \
+ ERR_ABORT (libgf_handler); \
+ libgf_handler->signo = signo; \
+ libgf_handler->handler = signal (signo, handler); \
+ list_add (&libgf_handler->next, signal_handler_list); \
+ } while (0)
+
+#define LIBGF_INSTALL_SIGNAL_HANDLERS(signal_handlers) \
+ do { \
+ INIT_LIST_HEAD (&signal_handlers); \
+ /* Handle SIGABORT and SIGSEGV */ \
+ LIBGF_CLIENT_SIGNAL (&signal_handlers, SIGSEGV, gf_print_trace); \
+ LIBGF_CLIENT_SIGNAL (&signal_handlers, SIGABRT, gf_print_trace); \
+ LIBGF_CLIENT_SIGNAL (&signal_handlers, SIGHUP, gf_log_logrotate); \
+ /* LIBGF_CLIENT_SIGNAL (SIGTERM, glusterfs_cleanup_and_exit); */ \
+ } while (0)
+
+#define LIBGF_RESTORE_SIGNAL_HANDLERS(local) \
+ do { \
+ libgf_client_signal_handler_t *ptr = NULL, *tmp = NULL; \
+ list_for_each_entry_safe (ptr, tmp, &local->signal_handlers, next) { \
+ signal (ptr->signo, ptr->handler); \
+ FREE (ptr); \
+ } \
+ } while (0)
+
+#define LIBGF_CLIENT_FOP_ASYNC(ctx, local, ret_fn, op, args ...) \
+ do { \
+ call_frame_t *frame = get_call_frame_for_req (ctx, 1); \
+ xlator_t *xl = frame->this->children ? \
+ frame->this->children->xlator : NULL; \
+ dict_t *refs = frame->root->req_refs; \
+ frame->root->state = ctx; \
+ frame->local = local; \
+ STACK_WIND (frame, ret_fn, xl, xl->fops->op, args); \
+ dict_unref (refs); \
+ } while (0)
+
+#define LIBGF_CLIENT_FOP(ctx, stub, op, local, args ...) \
+ do { \
+ call_frame_t *frame = get_call_frame_for_req (ctx, 1); \
+ xlator_t *xl = frame->this->children ? \
+ frame->this->children->xlator : NULL; \
+ dict_t *refs = frame->root->req_refs; \
+ if (!local) { \
+ local = CALLOC (1, sizeof (*local)); \
+ } \
+ ERR_ABORT (local); \
+ frame->local = local; \
+ frame->root->state = ctx; \
+ pthread_cond_init (&local->reply_cond, NULL); \
+ pthread_mutex_init (&local->lock, NULL); \
+ LIBGF_STACK_WIND_AND_WAIT (frame, libgf_client_##op##_cbk, xl, xl->fops->op, args); \
+ dict_unref (refs); \
+ stub = local->reply_stub; \
+ FREE (frame->local); \
+ frame->local = NULL; \
+ STACK_DESTROY (frame->root); \
+ } while (0)
+
+#endif