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4c7e4b7738
All files that were including one of the following include files have been updated to only include haproxy/api.h or haproxy/api-t.h once instead: - common/config.h - common/compat.h - common/compiler.h - common/defaults.h - common/initcall.h - common/tools.h The choice is simple: if the file only requires type definitions, it includes api-t.h, otherwise it includes the full api.h. In addition, in these files, explicit includes for inttypes.h and limits.h were dropped since these are now covered by api.h and api-t.h. No other change was performed, given that this patch is large and affects 201 files. At least one (tools.h) was already freestanding and didn't get the new one added.
128 lines
3.7 KiB
C
128 lines
3.7 KiB
C
/*
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* include/proto/applet.h
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* This file contains applet function prototypes
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*
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* Copyright (C) 2000-2015 Willy Tarreau - w@1wt.eu
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation, version 2.1
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* exclusively.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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#ifndef _PROTO_APPLET_H
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#define _PROTO_APPLET_H
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#include <stdlib.h>
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#include <haproxy/api.h>
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#include <common/memory.h>
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#include <common/mini-clist.h>
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#include <types/applet.h>
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#include <proto/task.h>
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extern unsigned int nb_applets;
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extern struct pool_head *pool_head_appctx;
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struct task *task_run_applet(struct task *t, void *context, unsigned short state);
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int appctx_buf_available(void *arg);
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/* Initializes all required fields for a new appctx. Note that it does the
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* minimum acceptable initialization for an appctx. This means only the
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* 3 integer states st0, st1, st2 and the chunk used to gather unfinished
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* commands are zeroed
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*/
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static inline void appctx_init(struct appctx *appctx, unsigned long thread_mask)
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{
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appctx->st0 = appctx->st1 = appctx->st2 = 0;
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appctx->chunk = NULL;
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appctx->io_release = NULL;
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appctx->thread_mask = thread_mask;
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appctx->call_rate.curr_sec = 0;
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appctx->call_rate.curr_ctr = 0;
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appctx->call_rate.prev_ctr = 0;
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appctx->state = 0;
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LIST_INIT(&appctx->wait_entry);
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}
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/* Tries to allocate a new appctx and initialize its main fields. The appctx
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* is returned on success, NULL on failure. The appctx must be released using
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* appctx_free(). <applet> is assigned as the applet, but it can be NULL.
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*/
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static inline struct appctx *appctx_new(struct applet *applet, unsigned long thread_mask)
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{
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struct appctx *appctx;
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appctx = pool_alloc(pool_head_appctx);
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if (likely(appctx != NULL)) {
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appctx->obj_type = OBJ_TYPE_APPCTX;
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appctx->applet = applet;
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appctx_init(appctx, thread_mask);
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appctx->t = task_new(thread_mask);
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if (unlikely(appctx->t == NULL)) {
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pool_free(pool_head_appctx, appctx);
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return NULL;
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}
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appctx->t->process = task_run_applet;
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appctx->t->context = appctx;
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MT_LIST_INIT(&appctx->buffer_wait.list);
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appctx->buffer_wait.target = appctx;
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appctx->buffer_wait.wakeup_cb = appctx_buf_available;
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_HA_ATOMIC_ADD(&nb_applets, 1);
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}
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return appctx;
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}
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/* Releases an appctx previously allocated by appctx_new(). */
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static inline void __appctx_free(struct appctx *appctx)
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{
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task_destroy(appctx->t);
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if (MT_LIST_ADDED(&appctx->buffer_wait.list))
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MT_LIST_DEL(&appctx->buffer_wait.list);
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pool_free(pool_head_appctx, appctx);
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_HA_ATOMIC_SUB(&nb_applets, 1);
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}
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static inline void appctx_free(struct appctx *appctx)
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{
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/* The task is supposed to be run on this thread, so we can just
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* check if it's running already (or about to run) or not
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*/
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if (!(appctx->t->state & (TASK_QUEUED | TASK_RUNNING)))
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__appctx_free(appctx);
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else {
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/* if it's running, or about to run, defer the freeing
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* until the callback is called.
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*/
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appctx->state |= APPLET_WANT_DIE;
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task_wakeup(appctx->t, TASK_WOKEN_OTHER);
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}
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}
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/* wakes up an applet when conditions have changed */
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static inline void appctx_wakeup(struct appctx *appctx)
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{
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task_wakeup(appctx->t, TASK_WOKEN_OTHER);
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}
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#endif /* _PROTO_APPLET_H */
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/*
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* Local variables:
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* c-indent-level: 8
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* c-basic-offset: 8
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* End:
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*/
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