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Commit 78ed091f authored by Jason Madden's avatar Jason Madden
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Merge branch 'cffi-sep-files'

parents 961f8858 410a14fb
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Showing with 283 additions and 277 deletions
gevent/_corecffi_build.py
View file @ 78ed091f
# pylint: disable=too-many-lines, protected-access, redefined-outer-name # pylint: disable=no-member
# This module is only used to create and compile the gevent._corecffi module; # This module is only used to create and compile the gevent._corecffi module;
# nothing should be directly imported from it except `ffi`, which should only be # nothing should be directly imported from it except `ffi`, which should only be
...@@ -9,6 +9,7 @@ ...@@ -9,6 +9,7 @@
from __future__ import absolute_import, print_function from __future__ import absolute_import, print_function
import sys import sys
import os import os
import os.path # pylint:disable=no-name-in-module
import struct import struct
__all__ = [] __all__ = []
...@@ -21,216 +22,27 @@ def system_bits(): ...@@ -21,216 +22,27 @@ def system_bits():
def st_nlink_type(): def st_nlink_type():
if sys.platform == "darwin" or sys.platform.startswith("freebsd"): if sys.platform == "darwin" or sys.platform.startswith("freebsd"):
return "short" return "short"
elif system_bits() == 32: if system_bits() == 32:
return "unsigned long" return "unsigned long"
return "long long" return "long long"
from cffi import FFI from cffi import FFI
ffi = FFI() ffi = FFI()
_cdef = """
#define EV_MINPRI ...
#define EV_MAXPRI ...
#define EV_VERSION_MAJOR ... thisdir = os.path.dirname(os.path.abspath(__file__))
#define EV_VERSION_MINOR ... def read_source(name):
with open(os.path.join(thisdir, name), 'r') as f:
#define EV_UNDEF ... return f.read()
#define EV_NONE ...
#define EV_READ ...
#define EV_WRITE ...
#define EV__IOFDSET ...
#define EV_TIMER ...
#define EV_PERIODIC ...
#define EV_SIGNAL ...
#define EV_CHILD ...
#define EV_STAT ...
#define EV_IDLE ...
#define EV_PREPARE ...
#define EV_CHECK ...
#define EV_EMBED ...
#define EV_FORK ...
#define EV_CLEANUP ...
#define EV_ASYNC ...
#define EV_CUSTOM ...
#define EV_ERROR ...
#define EVFLAG_AUTO ...
#define EVFLAG_NOENV ...
#define EVFLAG_FORKCHECK ...
#define EVFLAG_NOINOTIFY ...
#define EVFLAG_SIGNALFD ...
#define EVFLAG_NOSIGMASK ...
#define EVBACKEND_SELECT ...
#define EVBACKEND_POLL ...
#define EVBACKEND_EPOLL ...
#define EVBACKEND_KQUEUE ...
#define EVBACKEND_DEVPOLL ...
#define EVBACKEND_PORT ...
/* #define EVBACKEND_IOCP ... */
#define EVBACKEND_ALL ...
#define EVBACKEND_MASK ...
#define EVRUN_NOWAIT ...
#define EVRUN_ONCE ...
#define EVBREAK_CANCEL ...
#define EVBREAK_ONE ...
#define EVBREAK_ALL ...
struct ev_loop {
int backend_fd;
int activecnt;
...;
};
// Watcher types
// base for all watchers
struct ev_watcher{...;};
struct ev_io {
int fd;
int events;
void* data;
...;
};
struct ev_timer {
double at;
void* data;
...;
};
struct ev_signal {
void* data;
...;
};
struct ev_idle {
void* data;
...;
};
struct ev_prepare {
void* data;
...;
};
struct ev_check {
void* data;
...;
};
struct ev_fork {
void* data;
...;
};
struct ev_async {
void* data;
...;
};
struct ev_child {
int pid;
int rpid;
int rstatus;
void* data;
...;
};
struct stat {
""" + st_nlink_type() + """ st_nlink;
...;
};
struct ev_stat {
struct stat attr;
const char* path;
struct stat prev;
double interval;
void* data;
...;
};
typedef double ev_tstamp;
int ev_version_major();
int ev_version_minor();
unsigned int ev_supported_backends (void);
unsigned int ev_recommended_backends (void);
unsigned int ev_embeddable_backends (void);
ev_tstamp ev_time (void);
void ev_set_syserr_cb(void *);
int ev_priority(void*);
void ev_set_priority(void*, int);
int ev_is_pending(void*);
int ev_is_active(void*);
void ev_io_init(struct ev_io*, void* callback, int fd, int events);
void ev_io_start(struct ev_loop*, struct ev_io*);
void ev_io_stop(struct ev_loop*, struct ev_io*);
void ev_feed_event(struct ev_loop*, void*, int);
void ev_timer_init(struct ev_timer*, void *callback, double, double);
void ev_timer_start(struct ev_loop*, struct ev_timer*);
void ev_timer_stop(struct ev_loop*, struct ev_timer*);
void ev_timer_again(struct ev_loop*, struct ev_timer*);
void ev_signal_init(struct ev_signal*, void* callback, int);
void ev_signal_start(struct ev_loop*, struct ev_signal*);
void ev_signal_stop(struct ev_loop*, struct ev_signal*);
void ev_idle_init(struct ev_idle*, void* callback);
void ev_idle_start(struct ev_loop*, struct ev_idle*);
void ev_idle_stop(struct ev_loop*, struct ev_idle*);
void ev_prepare_init(struct ev_prepare*, void* callback);
void ev_prepare_start(struct ev_loop*, struct ev_prepare*);
void ev_prepare_stop(struct ev_loop*, struct ev_prepare*);
void ev_check_init(struct ev_check*, void* callback);
void ev_check_start(struct ev_loop*, struct ev_check*);
void ev_check_stop(struct ev_loop*, struct ev_check*);
void ev_fork_init(struct ev_fork*, void* callback);
void ev_fork_start(struct ev_loop*, struct ev_fork*);
void ev_fork_stop(struct ev_loop*, struct ev_fork*);
void ev_async_init(struct ev_async*, void* callback);
void ev_async_start(struct ev_loop*, struct ev_async*);
void ev_async_stop(struct ev_loop*, struct ev_async*);
void ev_async_send(struct ev_loop*, struct ev_async*);
int ev_async_pending(struct ev_async*);
void ev_child_init(struct ev_child*, void* callback, int, int);
void ev_child_start(struct ev_loop*, struct ev_child*);
void ev_child_stop(struct ev_loop*, struct ev_child*);
void ev_stat_init(struct ev_stat*, void* callback, char*, double);
void ev_stat_start(struct ev_loop*, struct ev_stat*);
void ev_stat_stop(struct ev_loop*, struct ev_stat*);
struct ev_loop *ev_default_loop (unsigned int flags); _cdef = read_source('_corecffi_cdef.c')
struct ev_loop* ev_loop_new(unsigned int flags); _source = read_source('_corecffi_source.c')
void ev_loop_destroy(struct ev_loop*);
void ev_loop_fork(struct ev_loop*);
int ev_is_default_loop (struct ev_loop *);
unsigned int ev_iteration(struct ev_loop*);
unsigned int ev_depth(struct ev_loop*);
unsigned int ev_backend(struct ev_loop*);
void ev_verify(struct ev_loop*);
void ev_run(struct ev_loop*, int flags);
ev_tstamp ev_now (struct ev_loop *); _cdef = _cdef.replace('#define GEVENT_ST_NLINK_T int', '')
void ev_now_update (struct ev_loop *); /* update event loop time */ _cdef = _cdef.replace('#define GEVENT_STRUCT_DONE int', '')
void ev_ref(struct ev_loop*); _cdef = _cdef.replace('GEVENT_ST_NLINK_T', st_nlink_type())
void ev_unref(struct ev_loop*); _cdef = _cdef.replace("GEVENT_STRUCT_DONE _;", '...;')
void ev_break(struct ev_loop*, int);
unsigned int ev_pending_count(struct ev_loop*);
struct ev_loop* gevent_ev_default_loop(unsigned int flags);
void gevent_install_sigchld_handler();
void (*gevent_noop)(struct ev_loop *_loop, struct ev_timer *w, int revents);
void ev_sleep (ev_tstamp delay); /* sleep for a while */
"""
if sys.platform.startswith('win'): if sys.platform.startswith('win'):
# We must have the vfd_open, etc, functions on # We must have the vfd_open, etc, functions on
...@@ -245,84 +57,8 @@ vfd_socket_t vfd_get(int); ...@@ -245,84 +57,8 @@ vfd_socket_t vfd_get(int);
void vfd_free(int); void vfd_free(int);
""" """
_watcher_types = [
'ev_async',
'ev_check',
'ev_child',
'ev_fork',
'ev_idle',
'ev_io',
'ev_prepare',
'ev_signal',
'ev_stat',
'ev_timer',
]
_source = """
// passed to the real C compiler
#define LIBEV_EMBED 1
#ifdef _WIN32
#define EV_STANDALONE 1
#include "libev_vfd.h"
#endif
#include "libev.h"
static void
_gevent_noop(struct ev_loop *_loop, struct ev_timer *w, int revents) { }
void (*gevent_noop)(struct ev_loop *, struct ev_timer *, int) = &_gevent_noop;
"""
# Setup the watcher callbacks
_cbs = """
static int (*python_callback)(void* handle, int revents);
static void (*python_handle_error)(void* handle, int revents);
static void (*python_stop)(void* handle);
"""
_cdef += _cbs
_source += _cbs
_watcher_type = None
# We use a single C callback for every watcher type, which in turn calls the
# Python callbacks. The ev_watcher pointer type can be used for every watcher type
# because they all start with the same members---libev itself relies on this. Each
# watcher types has a 'void* data' that stores the CFFI handle to the Python watcher
# object.
_cdef += """
static void _gevent_generic_callback(struct ev_loop* loop, struct ev_watcher* watcher, int revents);
"""
_source += """
static void _gevent_generic_callback(struct ev_loop* loop, struct ev_watcher* watcher, int revents)
{
void* handle = watcher->data;
int cb_result = python_callback(handle, revents);
switch(cb_result) {
case -1:
// in case of exception, call self.loop.handle_error;
// this function is also responsible for stopping the watcher
// and allowing memory to be freed
python_handle_error(handle, revents);
break;
case 0:
// Code to stop the event. Note that if python_callback
// has disposed of the last reference to the handle,
// `watcher` could now be invalid/disposed memory!
if (!ev_is_active(watcher)) {
python_stop(handle);
}
break;
default:
assert(cb_result == 1);
// watcher is already stopped and dead, nothing to do.
}
}
"""
thisdir = os.path.dirname(os.path.abspath(__file__))
include_dirs = [ include_dirs = [
thisdir, # libev_vfd.h thisdir, # libev_vfd.h
os.path.abspath(os.path.join(thisdir, '..', 'libev')), os.path.abspath(os.path.join(thisdir, '..', 'libev')),
......
gevent/_corecffi_cdef.c 0 → 100644
View file @ 78ed091f
/* libev interface */
#define EV_MINPRI ...
#define EV_MAXPRI ...
#define EV_VERSION_MAJOR ...
#define EV_VERSION_MINOR ...
#define EV_UNDEF ...
#define EV_NONE ...
#define EV_READ ...
#define EV_WRITE ...
#define EV__IOFDSET ...
#define EV_TIMER ...
#define EV_PERIODIC ...
#define EV_SIGNAL ...
#define EV_CHILD ...
#define EV_STAT ...
#define EV_IDLE ...
#define EV_PREPARE ...
#define EV_CHECK ...
#define EV_EMBED ...
#define EV_FORK ...
#define EV_CLEANUP ...
#define EV_ASYNC ...
#define EV_CUSTOM ...
#define EV_ERROR ...
#define EVFLAG_AUTO ...
#define EVFLAG_NOENV ...
#define EVFLAG_FORKCHECK ...
#define EVFLAG_NOINOTIFY ...
#define EVFLAG_SIGNALFD ...
#define EVFLAG_NOSIGMASK ...
#define EVBACKEND_SELECT ...
#define EVBACKEND_POLL ...
#define EVBACKEND_EPOLL ...
#define EVBACKEND_KQUEUE ...
#define EVBACKEND_DEVPOLL ...
#define EVBACKEND_PORT ...
/* #define EVBACKEND_IOCP ... */
#define EVBACKEND_ALL ...
#define EVBACKEND_MASK ...
#define EVRUN_NOWAIT ...
#define EVRUN_ONCE ...
#define EVBREAK_CANCEL ...
#define EVBREAK_ONE ...
#define EVBREAK_ALL ...
/* markers for the CFFI parser. Replaced when the string is read. */
#define GEVENT_STRUCT_DONE int
#define GEVENT_ST_NLINK_T int
struct ev_loop {
int backend_fd;
int activecnt;
GEVENT_STRUCT_DONE _;
};
// Watcher types
// base for all watchers
struct ev_watcher{
GEVENT_STRUCT_DONE _;
};
struct ev_io {
int fd;
int events;
void* data;
GEVENT_STRUCT_DONE _;
};
struct ev_timer {
double at;
void* data;
GEVENT_STRUCT_DONE _;
};
struct ev_signal {
void* data;
GEVENT_STRUCT_DONE _;
};
struct ev_idle {
void* data;
GEVENT_STRUCT_DONE _;
};
struct ev_prepare {
void* data;
GEVENT_STRUCT_DONE _;
};
struct ev_check {
void* data;
GEVENT_STRUCT_DONE _;
};
struct ev_fork {
void* data;
GEVENT_STRUCT_DONE _;
};
struct ev_async {
void* data;
GEVENT_STRUCT_DONE _;
};
struct ev_child {
int pid;
int rpid;
int rstatus;
void* data;
GEVENT_STRUCT_DONE _;
};
struct stat {
GEVENT_ST_NLINK_T st_nlink;
GEVENT_STRUCT_DONE _;
};
struct ev_stat {
struct stat attr;
const char* path;
struct stat prev;
double interval;
void* data;
GEVENT_STRUCT_DONE _;
};
typedef double ev_tstamp;
int ev_version_major();
int ev_version_minor();
unsigned int ev_supported_backends (void);
unsigned int ev_recommended_backends (void);
unsigned int ev_embeddable_backends (void);
ev_tstamp ev_time (void);
void ev_set_syserr_cb(void *);
int ev_priority(void*);
void ev_set_priority(void*, int);
int ev_is_pending(void*);
int ev_is_active(void*);
void ev_io_init(struct ev_io*, void* callback, int fd, int events);
void ev_io_start(struct ev_loop*, struct ev_io*);
void ev_io_stop(struct ev_loop*, struct ev_io*);
void ev_feed_event(struct ev_loop*, void*, int);
void ev_timer_init(struct ev_timer*, void *callback, double, double);
void ev_timer_start(struct ev_loop*, struct ev_timer*);
void ev_timer_stop(struct ev_loop*, struct ev_timer*);
void ev_timer_again(struct ev_loop*, struct ev_timer*);
void ev_signal_init(struct ev_signal*, void* callback, int);
void ev_signal_start(struct ev_loop*, struct ev_signal*);
void ev_signal_stop(struct ev_loop*, struct ev_signal*);
void ev_idle_init(struct ev_idle*, void* callback);
void ev_idle_start(struct ev_loop*, struct ev_idle*);
void ev_idle_stop(struct ev_loop*, struct ev_idle*);
void ev_prepare_init(struct ev_prepare*, void* callback);
void ev_prepare_start(struct ev_loop*, struct ev_prepare*);
void ev_prepare_stop(struct ev_loop*, struct ev_prepare*);
void ev_check_init(struct ev_check*, void* callback);
void ev_check_start(struct ev_loop*, struct ev_check*);
void ev_check_stop(struct ev_loop*, struct ev_check*);
void ev_fork_init(struct ev_fork*, void* callback);
void ev_fork_start(struct ev_loop*, struct ev_fork*);
void ev_fork_stop(struct ev_loop*, struct ev_fork*);
void ev_async_init(struct ev_async*, void* callback);
void ev_async_start(struct ev_loop*, struct ev_async*);
void ev_async_stop(struct ev_loop*, struct ev_async*);
void ev_async_send(struct ev_loop*, struct ev_async*);
int ev_async_pending(struct ev_async*);
void ev_child_init(struct ev_child*, void* callback, int, int);
void ev_child_start(struct ev_loop*, struct ev_child*);
void ev_child_stop(struct ev_loop*, struct ev_child*);
void ev_stat_init(struct ev_stat*, void* callback, char*, double);
void ev_stat_start(struct ev_loop*, struct ev_stat*);
void ev_stat_stop(struct ev_loop*, struct ev_stat*);
struct ev_loop *ev_default_loop (unsigned int flags);
struct ev_loop* ev_loop_new(unsigned int flags);
void ev_loop_destroy(struct ev_loop*);
void ev_loop_fork(struct ev_loop*);
int ev_is_default_loop (struct ev_loop *);
unsigned int ev_iteration(struct ev_loop*);
unsigned int ev_depth(struct ev_loop*);
unsigned int ev_backend(struct ev_loop*);
void ev_verify(struct ev_loop*);
void ev_run(struct ev_loop*, int flags);
ev_tstamp ev_now (struct ev_loop *);
void ev_now_update (struct ev_loop *); /* update event loop time */
void ev_ref(struct ev_loop*);
void ev_unref(struct ev_loop*);
void ev_break(struct ev_loop*, int);
unsigned int ev_pending_count(struct ev_loop*);
struct ev_loop* gevent_ev_default_loop(unsigned int flags);
void gevent_install_sigchld_handler();
void (*gevent_noop)(struct ev_loop *_loop, struct ev_timer *w, int revents);
void ev_sleep (ev_tstamp delay); /* sleep for a while */
/* gevent callbacks */
static int (*python_callback)(void* handle, int revents);
static void (*python_handle_error)(void* handle, int revents);
static void (*python_stop)(void* handle);
/*
* We use a single C callback for every watcher type, which in turn calls the
* Python callbacks. The ev_watcher pointer type can be used for every watcher type
* because they all start with the same members---libev itself relies on this. Each
* watcher types has a 'void* data' that stores the CFFI handle to the Python watcher
* object.
*/
static void _gevent_generic_callback(struct ev_loop* loop, struct ev_watcher* watcher, int revents);
gevent/_corecffi_source.c 0 → 100644
View file @ 78ed091f
// passed to the real C compiler
#define LIBEV_EMBED 1
#ifdef _WIN32
#define EV_STANDALONE 1
#include "libev_vfd.h"
#endif
#include "libev.h"
static void
_gevent_noop(struct ev_loop *_loop, struct ev_timer *w, int revents) { }
void (*gevent_noop)(struct ev_loop *, struct ev_timer *, int) = &_gevent_noop;
static int (*python_callback)(void* handle, int revents);
static void (*python_handle_error)(void* handle, int revents);
static void (*python_stop)(void* handle);
static void _gevent_generic_callback(struct ev_loop* loop,
struct ev_watcher* watcher,
int revents)
{
void* handle = watcher->data;
int cb_result = python_callback(handle, revents);
switch(cb_result) {
case -1:
// in case of exception, call self.loop.handle_error;
// this function is also responsible for stopping the watcher
// and allowing memory to be freed
python_handle_error(handle, revents);
break;
case 0:
// Code to stop the event. Note that if python_callback
// has disposed of the last reference to the handle,
// `watcher` could now be invalid/disposed memory!
if (!ev_is_active(watcher)) {
python_stop(handle);
}
break;
default:
assert(cb_result == 1);
// watcher is already stopped and dead, nothing to do.
}
}
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