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#include <stdlib.h>
#include <string.h>
#include "src/common.h"
typedef struct uv_link_source_write_s uv_link_source_write_t;
typedef struct uv_link_source_shutdown_s uv_link_source_shutdown_t;
struct uv_link_source_write_s {
uv_write_t req;
uv_link_t* link;
void* arg;
uv_link_write_cb write_cb;
};
struct uv_link_source_shutdown_s {
uv_shutdown_t req;
uv_link_t* link;
void* arg;
uv_link_shutdown_cb shutdown_cb;
};
static void uv_link_source_wrap_alloc_cb(uv_handle_t* handle,
size_t suggested_size,
uv_buf_t* buf) {
uv_link_source_t* source;
source = handle->data;
uv_link_propagate_alloc_cb((uv_link_t*) source, suggested_size, buf);
}
static void uv_link_source_wrap_read_cb(uv_stream_t* stream,
ssize_t nread,
const uv_buf_t* buf) {
uv_link_source_t* source;
source = stream->data;
uv_link_propagate_read_cb((uv_link_t*) source, nread, buf);
}
static int uv_link_source_read_start(uv_link_t* link) {
uv_link_source_t* source;
source = (uv_link_source_t*) link;
return uv_read_start(source->stream,
uv_link_source_wrap_alloc_cb,
uv_link_source_wrap_read_cb);
}
static int uv_link_source_read_stop(uv_link_t* link) {
uv_link_source_t* source;
source = (uv_link_source_t*) link;
return uv_read_stop(source->stream);
}
static void uv_link_source_wrap_write_cb(uv_write_t* req, int status) {
uv_link_source_write_t* lreq;
lreq = container_of(req, uv_link_source_write_t, req);
lreq->write_cb(lreq->link, status, lreq->arg);
free(lreq);
}
static int uv_link_source_write(uv_link_t* link,
uv_link_t* source,
const uv_buf_t bufs[],
unsigned int nbufs,
uv_stream_t* send_handle,
uv_link_write_cb cb,
void* arg) {
uv_link_source_t* s;
uv_link_source_write_t* req;
s = (uv_link_source_t*) link;
req = malloc(sizeof(*req));
if (req == NULL)
return UV_ENOMEM;
req->link = source;
req->write_cb = cb;
req->arg = arg;
return uv_write2(&req->req, s->stream, bufs, nbufs, send_handle,
uv_link_source_wrap_write_cb);
}
static int uv_link_source_try_write(uv_link_t* link,
const uv_buf_t bufs[],
unsigned int nbufs) {
uv_link_source_t* source;
source = (uv_link_source_t*) link;
return uv_try_write(source->stream, bufs, nbufs);
}
static void uv_link_source_wrap_shutdown_cb(uv_shutdown_t* req, int status) {
uv_link_source_shutdown_t* lreq;
lreq = container_of(req, uv_link_source_shutdown_t, req);
lreq->shutdown_cb(lreq->link, status, lreq->arg);
free(lreq);
}
static int uv_link_source_shutdown(uv_link_t* link,
uv_link_t* source,
uv_link_shutdown_cb cb,
void* arg) {
uv_link_source_t* s;
uv_link_source_shutdown_t* req;
s = (uv_link_source_t*) link;
req = malloc(sizeof(*req));
if (req == NULL)
return UV_ENOMEM;
req->link = source;
req->shutdown_cb = cb;
req->arg = arg;
return uv_shutdown(&req->req, s->stream, uv_link_source_wrap_shutdown_cb);
}
static void uv_link_source_close_cb(uv_handle_t* handle) {
uv_link_source_t* source;
source = handle->data;
source->stream = NULL;
source->close_cb(source->close_source);
}
static void uv_link_source_close(uv_link_t* link, uv_link_t* source,
uv_link_close_cb cb) {
uv_link_source_t* s;
s = (uv_link_source_t*) link;
s->close_cb = cb;
s->close_source = source;
uv_close((uv_handle_t*) s->stream, uv_link_source_close_cb);
}
static uv_link_methods_t uv_link_source_methods = {
.read_start = uv_link_source_read_start,
.read_stop = uv_link_source_read_stop,
.write = uv_link_source_write,
.try_write = uv_link_source_try_write,
.shutdown = uv_link_source_shutdown,
.close = uv_link_source_close
};
int uv_link_source_init(uv_link_source_t* source,
uv_stream_t* stream) {
int err;
err = uv_link_init((uv_link_t*) source, &uv_link_source_methods);
if (err != 0)
return err;
source->stream = stream;
source->stream->data = source;
source->close_cb = NULL;
source->close_source = NULL;
return 0;
}
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