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More hacking on event_iocp.c: make it compile, and give it more of an interface. This code is now testable.

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svn:r1176
This commit is contained in:
Nick Mathewson 2009-04-16 00:32:52 +00:00
parent 09c23b6a56
commit 0b98781353
2 changed files with 61 additions and 11 deletions
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57
event_iocp.c
View File

@ -1,11 +1,12 @@
#include "event-config.h"
#include <sys/types.h>
#include <windows.h> #include <windows.h>
#include <WinBase.h> #include <process.h>
#include "event2/util.h" #include "event2/util.h"
#include "util-internal.h" #include "util-internal.h"
#include "iocp-internal.h" #include "iocp-internal.h"
#include "log-internal.h"
#include "mm-internal.h"
void void
event_overlapped_init(struct event_overlapped *o, iocp_callback cb) event_overlapped_init(struct event_overlapped *o, iocp_callback cb)
@ -17,26 +18,68 @@ event_overlapped_init(struct event_overlapped *o, iocp_callback cb)
static void static void
handle_entry(OVERLAPPED *o, ULONG_PTR completion_key, DWORD nBytes) handle_entry(OVERLAPPED *o, ULONG_PTR completion_key, DWORD nBytes)
{ {
OVERLAPPED *o = ent->lpOverlapped;
struct event_overlapped *eo = struct event_overlapped *eo =
EVUTIL_UPCAST(o, struct event_overlapped, overlapped); EVUTIL_UPCAST(o, struct event_overlapped, overlapped);
eo = upcast(o, struct event_overlapped, overlapped);
eo->cb(eo, completion_key, nBytes); eo->cb(eo, completion_key, nBytes);
} }
static void static void
loop(struct event_iocp_port *port, long ms) loop(void *_port)
{ {
struct event_iocp_port *port = _port;
OVERLAPPED *overlapped; OVERLAPPED *overlapped;
ULONG_PTR key; ULONG_PTR key;
DWORD bytes; DWORD bytes;
long ms = port->ms;
if (ms <= 0) if (ms <= 0)
ms = INFINITE; ms = INFINITE;
while(GetQueuedCompletionStatus(port->port, &nBytes, &key,
while (GetQueuedCompletionStatus(port->port, &bytes, &key,
&overlapped, ms)) { &overlapped, ms)) {
if (port->shutdown)
return;
handle_entry(overlapped, key, bytes); handle_entry(overlapped, key, bytes);
} }
event_warnx("GetQueuedCompletionStatus exited with no event.");
} }
int
event_iocp_port_associate(struct event_iocp_port *port, evutil_socket_t fd,
uintptr_t key)
{
HANDLE h;
h = CreateIoCompletionPort((HANDLE)fd, port->port, key, port->n_threads);
if (!h)
return -1;
return 0;
}
struct event_iocp_port *
event_iocp_port_launch(void)
{
struct event_iocp_port *port;
int thread, i;
if (!(port = mm_calloc(1, sizeof(struct event_iocp_port))))
return NULL;
port->n_threads = 2;
port->port = CreateIoCompletionPort(NULL, NULL, 0, port->n_threads);
port->ms = -1;
if (!port->port)
mm_free(port);
for (i=0; i<port->n_threads; ++i)
thread = _beginthread(loop, 0, port);
return port;
}
void
event_iocp_shutdown(struct event_iocp_port *port)
{
port->shutdown = 1;
/* XXX notify. */
}

15
iocp-internal.h
View File

@ -41,13 +41,20 @@ struct event_overlapped {
struct event_iocp_port { struct event_iocp_port {
HANDLE port; HANDLE port;
int n_threads;
int shutdown;
long ms;
}; };
void event_overlapped_init(struct event_overlapped *, iocp_callback cb);
struct evbuffer; struct evbuffer;
int evbuffer_launch_write(struct evbuffer *buf, ssize_t atmost); void event_overlapped_init(struct event_overlapped *, iocp_callback cb);
int evbuffer_launch_read(struct evbuffer *buf, size_t atmost); int evbuffer_launch_read(struct evbuffer *, size_t n);
int evbuffer_launch_write(struct evbuffer *, ssize_t n);
struct event_iocp_port *event_iocp_port_launch(void);
int event_iocp_port_associate(struct event_iocp_port *port, evutil_socket_t fd,
uintptr_t key);
void event_iocp_shutdown(struct event_iocp_port *port);
#ifdef __cplusplus #ifdef __cplusplus
} }