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-rw-r--r--src/nvim/eval.c48
-rw-r--r--src/nvim/eval.lua1
-rw-r--r--src/nvim/event/socket.c74
-rw-r--r--src/nvim/msgpack_rpc/channel.c19
4 files changed, 142 insertions, 0 deletions
diff --git a/src/nvim/eval.c b/src/nvim/eval.c
index 7bfd638e86..4e303414a3 100644
--- a/src/nvim/eval.c
+++ b/src/nvim/eval.c
@@ -15058,6 +15058,54 @@ static void f_simplify(typval_T *argvars, typval_T *rettv, FunPtr fptr)
rettv->v_type = VAR_STRING;
}
+/// "sockconnect()" function
+static void f_sockconnect(typval_T *argvars, typval_T *rettv, FunPtr fptr)
+{
+ if (argvars[0].v_type != VAR_STRING || argvars[1].v_type != VAR_STRING) {
+ EMSG(_(e_invarg));
+ return;
+ }
+ if (argvars[2].v_type != VAR_DICT && argvars[2].v_type != VAR_UNKNOWN) {
+ // Wrong argument types
+ EMSG2(_(e_invarg2), "expected dictionary");
+ return;
+ }
+
+ const char *mode = tv_get_string(&argvars[0]);
+ const char *address = tv_get_string(&argvars[1]);
+
+ bool tcp;
+ if (strcmp(mode, "tcp") == 0) {
+ tcp = true;
+ } else if (strcmp(mode, "pipe") == 0) {
+ tcp = false;
+ } else {
+ EMSG2(_(e_invarg2), "invalid mode");
+ return;
+ }
+
+ bool rpc = false;
+ if (argvars[2].v_type == VAR_DICT) {
+ dict_T *opts = argvars[2].vval.v_dict;
+ rpc = tv_dict_get_number(opts, "rpc") != 0;
+ }
+
+ if (!rpc) {
+ EMSG2(_(e_invarg2), "rpc option must be true");
+ return;
+ }
+
+ const char *error = NULL;
+ uint64_t id = channel_connect(tcp, address, 50, &error);
+
+ if (error) {
+ EMSG2(_("connection failed: %s"), error);
+ }
+
+ rettv->vval.v_number = (varnumber_T)id;
+ rettv->v_type = VAR_NUMBER;
+}
+
/// struct used in the array that's given to qsort()
typedef struct {
listitem_T *item;
diff --git a/src/nvim/eval.lua b/src/nvim/eval.lua
index 533403b2b0..334e10eb6c 100644
--- a/src/nvim/eval.lua
+++ b/src/nvim/eval.lua
@@ -268,6 +268,7 @@ return {
simplify={args=1},
sin={args=1, func="float_op_wrapper", data="&sin"},
sinh={args=1, func="float_op_wrapper", data="&sinh"},
+ sockconnect={args={2,3}},
sort={args={1, 3}},
soundfold={args=1},
spellbadword={args={0, 1}},
diff --git a/src/nvim/event/socket.c b/src/nvim/event/socket.c
index bc5a4ec75e..30a71a5586 100644
--- a/src/nvim/event/socket.c
+++ b/src/nvim/event/socket.c
@@ -15,6 +15,7 @@
#include "nvim/vim.h"
#include "nvim/strings.h"
#include "nvim/path.h"
+#include "nvim/main.h"
#include "nvim/memory.h"
#include "nvim/macros.h"
#include "nvim/charset.h"
@@ -189,3 +190,76 @@ static void close_cb(uv_handle_t *handle)
watcher->close_cb(watcher, watcher->data);
}
}
+
+static void connect_cb(uv_connect_t *req, int status)
+{
+ int *ret_status = req->data;
+ *ret_status = status;
+ if (status != 0) {
+ uv_close((uv_handle_t *)req->handle, NULL);
+ }
+}
+
+bool socket_connect(Loop *loop, Stream *stream,
+ bool is_tcp, const char *address,
+ int timeout, const char **error)
+{
+ bool success = false;
+ int status;
+ uv_connect_t req;
+ req.data = &status;
+ uv_stream_t *uv_stream;
+
+ uv_tcp_t *tcp = &stream->uv.tcp;
+ uv_getaddrinfo_t addr_req;
+ addr_req.addrinfo = NULL;
+ const struct addrinfo *addrinfo = NULL;
+ char *addr = NULL;
+ if (is_tcp) {
+ addr = xstrdup(address);
+ char *host_end = strrchr(addr, ':');
+ if (!host_end) {
+ *error = _("tcp address must be host:port");
+ goto cleanup;
+ }
+ *host_end = NUL;
+
+ const struct addrinfo hints = { .ai_family = AF_UNSPEC,
+ .ai_socktype = SOCK_STREAM,
+ .ai_flags = AI_NUMERICSERV };
+ int retval = uv_getaddrinfo(&loop->uv, &addr_req, NULL,
+ addr, host_end+1, &hints);
+ if (retval != 0) {
+ *error = _("failed to lookup host or port");
+ goto cleanup;
+ }
+ addrinfo = addr_req.addrinfo;
+
+tcp_retry:
+ uv_tcp_init(&loop->uv, tcp);
+ uv_tcp_connect(&req, tcp, addrinfo->ai_addr, connect_cb);
+ uv_stream = (uv_stream_t *)tcp;
+
+ } else {
+ uv_pipe_t *pipe = &stream->uv.pipe;
+ uv_pipe_init(&loop->uv, pipe, 0);
+ uv_pipe_connect(&req, pipe, address, connect_cb);
+ uv_stream = (uv_stream_t *)pipe;
+ }
+ status = 1;
+ LOOP_PROCESS_EVENTS_UNTIL(&main_loop, NULL, timeout, status != 1);
+ if (status == 0) {
+ stream_init(NULL, stream, -1, uv_stream);
+ success = true;
+ } else if (is_tcp && addrinfo->ai_next) {
+ addrinfo = addrinfo->ai_next;
+ goto tcp_retry;
+ } else {
+ *error = _("connection refused");
+ }
+
+cleanup:
+ xfree(addr);
+ uv_freeaddrinfo(addr_req.addrinfo);
+ return success;
+}
diff --git a/src/nvim/msgpack_rpc/channel.c b/src/nvim/msgpack_rpc/channel.c
index cd64e14976..0ff749649b 100644
--- a/src/nvim/msgpack_rpc/channel.c
+++ b/src/nvim/msgpack_rpc/channel.c
@@ -145,6 +145,25 @@ void channel_from_connection(SocketWatcher *watcher)
rstream_start(&channel->data.stream, parse_msgpack, channel);
}
+uint64_t channel_connect(bool tcp, const char *address,
+ int timeout, const char **error)
+{
+ Channel *channel = register_channel(kChannelTypeSocket, 0, NULL);
+ if (!socket_connect(&main_loop, &channel->data.stream,
+ tcp, address, timeout, error)) {
+ decref(channel);
+ return 0;
+ }
+
+ incref(channel); // close channel only after the stream is closed
+ channel->data.stream.internal_close_cb = close_cb;
+ channel->data.stream.internal_data = channel;
+ wstream_init(&channel->data.stream, 0);
+ rstream_init(&channel->data.stream, CHANNEL_BUFFER_SIZE);
+ rstream_start(&channel->data.stream, parse_msgpack, channel);
+ return channel->id;
+}
+
/// Sends event/arguments to channel
///
/// @param id The channel id. If 0, the event will be sent to all