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/*
* Copyright 2011 Red Hat, Inc.
*
* Permission is hereby granted, free of charge, to any person
* obtaining a copy of this software and associated documentation files
* (the "Software"), to deal in the Software without restriction,
* including without limitation the rights to use, copy, modify, merge,
* publish, distribute, sublicense, and/or sell copies of the Software,
* and to permit persons to whom the Software is furnished to do so,
* subject to the following conditions:
*
* The above copyright notice and this permission notice shall be
* included in all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*/
/*** THE FOLLOWING ARE FOR IMPLEMENTATION MODULES ONLY ***/
#ifndef VERTO_MODULE_H_
#define VERTO_MODULE_H_
#include <verto.h>
#define VERTO_MODULE_VERSION 1
#define VERTO_MODULE_TABLE verto_module_table
#define VERTO_MODULE(name, symb, types) \
static verto_ctx_funcs name ## _funcs = { \
name ## _ctx_free, \
name ## _ctx_run, \
name ## _ctx_run_once, \
name ## _ctx_break, \
name ## _ctx_add, \
name ## _ctx_del \
}; \
verto_module VERTO_MODULE_TABLE = { \
VERTO_MODULE_VERSION, \
# name, \
# symb, \
types, \
verto_new_ ## name, \
verto_default_ ## name, \
};
typedef verto_ctx *(*verto_ctx_constructor)();
typedef struct {
unsigned int vers;
const char *name;
const char *symb;
verto_ev_type types;
verto_ctx_constructor new_ctx;
verto_ctx_constructor def_ctx;
} verto_module;
typedef struct {
void (*ctx_free)(void *ctx);
void (*ctx_run)(void *ctx);
void (*ctx_run_once)(void *ctx);
void (*ctx_break)(void *ctx);
void *(*ctx_add)(void *ctx, const verto_ev *ev, verto_ev_flag *flags);
void (*ctx_del)(void *ctx, const verto_ev *ev, void *evpriv);
} verto_ctx_funcs;
/**
* Converts an existing implementation specific loop to a verto_ctx.
*
* This function also sets the internal default implementation so that future
* calls to verto_new(NULL) or verto_default(NULL) will use this specific
* implementation.
*
* @param name The name of the module (unquoted)
* @param priv The context private to store
* @return A new _ev_ctx, or NULL on error. Call verto_free() when done.
*/
#define verto_convert(name, priv) \
verto_convert_funcs(&name ## _funcs, &VERTO_MODULE_TABLE, priv)
/**
* Converts an existing implementation specific loop to a verto_ctx.
*
* This function also sets the internal default implementation so that future
* calls to verto_new(NULL) or verto_default(NULL) will use this specific
* implementation.
*
* If you are a module implementation, you probably want the macro above. This
* function is generally used directly only when an application is attempting
* to expose a home-grown event loop to verto.
*
* @param name The name of the module (unquoted)
* @param priv The context private to store
* @return A new _ev_ctx, or NULL on error. Call verto_free() when done.
*/
verto_ctx *
verto_convert_funcs(const verto_ctx_funcs *funcs,
const verto_module *module,
void *priv);
/**
* Calls the callback of the verto_ev and then frees it via verto_del().
*
* The verto_ev is not freed (verto_del() is not called) if it is a signal event.
*
* @see verto_add_read()
* @see verto_add_write()
* @see verto_add_timeout()
* @see verto_add_idle()
* @see verto_add_signal()
* @see verto_add_child()
* @see verto_del()
* @param ev The verto_ev
*/
void
verto_fire(verto_ev *ev);
/**
* Sets the status of the pid/handle which caused this event to fire.
*
* This function does nothing if the verto_ev is not a child type.
*
* @see verto_add_child()
* @param ev The verto_ev to set the status in.
* @param status The pid/handle status.
*/
void
verto_set_proc_status(verto_ev *ev, verto_proc_status status);
#endif /* VERTO_MODULE_H_ */
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