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/*
* Copyright (C) Max Romanov
* Copyright (C) NGINX, Inc.
*/
#include "_cgo_export.h"
#include <nxt_unit.h>
#include <nxt_unit_request.h>
static void nxt_cgo_request_handler(nxt_unit_request_info_t *req);
static nxt_cgo_str_t *nxt_cgo_str_init(nxt_cgo_str_t *dst,
nxt_unit_sptr_t *sptr, uint32_t length);
static int nxt_cgo_add_port(nxt_unit_ctx_t *, nxt_unit_port_t *port);
static void nxt_cgo_remove_port(nxt_unit_ctx_t *, nxt_unit_port_id_t *port_id);
static ssize_t nxt_cgo_port_send(nxt_unit_ctx_t *, nxt_unit_port_id_t *port_id,
const void *buf, size_t buf_size, const void *oob, size_t oob_size);
static ssize_t nxt_cgo_port_recv(nxt_unit_ctx_t *, nxt_unit_port_id_t *port_id,
void *buf, size_t buf_size, void *oob, size_t oob_size);
int
nxt_cgo_run(uintptr_t handler)
{
int rc;
nxt_unit_ctx_t *ctx;
nxt_unit_init_t init;
memset(&init, 0, sizeof(init));
init.callbacks.request_handler = nxt_cgo_request_handler;
init.callbacks.add_port = nxt_cgo_add_port;
init.callbacks.remove_port = nxt_cgo_remove_port;
init.callbacks.port_send = nxt_cgo_port_send;
init.callbacks.port_recv = nxt_cgo_port_recv;
init.data = (void *) handler;
ctx = nxt_unit_init(&init);
if (ctx == NULL) {
return NXT_UNIT_ERROR;
}
rc = nxt_unit_run(ctx);
nxt_unit_done(ctx);
return rc;
}
static void
nxt_cgo_request_handler(nxt_unit_request_info_t *req)
{
uint32_t i;
uintptr_t go_req;
nxt_cgo_str_t method, uri, name, value, proto, host, remote_addr;
nxt_unit_field_t *f;
nxt_unit_request_t *r;
r = req->request;
go_req = nxt_go_request_create((uintptr_t) req,
nxt_cgo_str_init(&method, &r->method, r->method_length),
nxt_cgo_str_init(&uri, &r->target, r->target_length));
nxt_go_request_set_proto(go_req,
nxt_cgo_str_init(&proto, &r->version, r->version_length), 1, 1);
for (i = 0; i < r->fields_count; i++) {
f = &r->fields[i];
nxt_go_request_add_header(go_req,
nxt_cgo_str_init(&name, &f->name, f->name_length),
nxt_cgo_str_init(&value, &f->value, f->value_length));
}
nxt_go_request_set_content_length(go_req, r->content_length);
nxt_go_request_set_host(go_req,
nxt_cgo_str_init(&host, &r->server_name, r->server_name_length));
nxt_go_request_set_remote_addr(go_req,
nxt_cgo_str_init(&remote_addr, &r->remote, r->remote_length));
if (r->tls) {
nxt_go_request_set_tls(go_req);
}
nxt_go_request_handler(go_req, (uintptr_t) req->unit->data);
}
static nxt_cgo_str_t *
nxt_cgo_str_init(nxt_cgo_str_t *dst, nxt_unit_sptr_t *sptr, uint32_t length)
{
dst->length = length;
dst->start = nxt_unit_sptr_get(sptr);
return dst;
}
static int
nxt_cgo_add_port(nxt_unit_ctx_t *ctx, nxt_unit_port_t *port)
{
nxt_go_add_port(port->id.pid, port->id.id,
port->in_fd, port->out_fd);
return nxt_unit_add_port(ctx, port);
}
static void
nxt_cgo_remove_port(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id)
{
nxt_go_remove_port(port_id->pid, port_id->id);
nxt_unit_remove_port(ctx, port_id);
}
static ssize_t
nxt_cgo_port_send(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id,
const void *buf, size_t buf_size, const void *oob, size_t oob_size)
{
return nxt_go_port_send(port_id->pid, port_id->id,
(void *) buf, buf_size, (void *) oob, oob_size);
}
static ssize_t
nxt_cgo_port_recv(nxt_unit_ctx_t *ctx, nxt_unit_port_id_t *port_id,
void *buf, size_t buf_size, void *oob, size_t oob_size)
{
return nxt_go_port_recv(port_id->pid, port_id->id,
buf, buf_size, oob, oob_size);
}
int
nxt_cgo_response_create(uintptr_t req, int status, int fields,
uint32_t fields_size)
{
return nxt_unit_response_init((nxt_unit_request_info_t *) req,
status, fields, fields_size);
}
int
nxt_cgo_response_add_field(uintptr_t req, uintptr_t name, uint8_t name_len,
uintptr_t value, uint32_t value_len)
{
return nxt_unit_response_add_field((nxt_unit_request_info_t *) req,
(char *) name, name_len,
(char *) value, value_len);
}
int
nxt_cgo_response_send(uintptr_t req)
{
return nxt_unit_response_send((nxt_unit_request_info_t *) req);
}
ssize_t
nxt_cgo_response_write(uintptr_t req, uintptr_t start, uint32_t len)
{
int rc;
rc = nxt_unit_response_write((nxt_unit_request_info_t *) req,
(void *) start, len);
if (rc != NXT_UNIT_OK) {
return -1;
}
return len;
}
ssize_t
nxt_cgo_request_read(uintptr_t req, uintptr_t dst, uint32_t dst_len)
{
return nxt_unit_request_read((nxt_unit_request_info_t *) req,
(void *) dst, dst_len);
}
int
nxt_cgo_request_close(uintptr_t req)
{
return 0;
}
void
nxt_cgo_request_done(uintptr_t req, int res)
{
nxt_unit_request_done((nxt_unit_request_info_t *) req, res);
}
void
nxt_cgo_warn(uintptr_t msg, uint32_t msg_len)
{
nxt_unit_warn(NULL, "%.*s", (int) msg_len, (char *) msg);
}
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