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Diffstat (limited to 'libglusterfsclient/src/libglusterfsclient-internals.h')
| -rwxr-xr-x | libglusterfsclient/src/libglusterfsclient-internals.h | 144 |
1 files changed, 144 insertions, 0 deletions
diff --git a/libglusterfsclient/src/libglusterfsclient-internals.h b/libglusterfsclient/src/libglusterfsclient-internals.h new file mode 100755 index 00000000000..c07da818018 --- /dev/null +++ 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 |