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1 files changed, 144 insertions, 0 deletions

diff --git a/libglusterfsclient/src/libglusterfsclient-internals.h b/libglusterfsclient/src/libglusterfsclient-internals.h
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+++ b/libglusterfsclient/src/libglusterfsclient-internals.h
@@ -0,0 +1,144 @@
+/*
+   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