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eval: learn serverstart, list, and close().

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Implement functions for spawning, destroying, and listing active
servers, and add server_address_list() to msgpack_rpc/server.c for the
serverlist() vimL function.
This commit is contained in:
Scott Prager
2015-04-01 23:07:41 -04:00
parent 4a66c48d8b
commit 296719428a
3 changed files with 121 additions and 9 deletions
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43
src/nvim/msgpack_rpc/server.c
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@@ -56,13 +56,18 @@ bool server_init(void)
{
ga_init(&servers, sizeof(Server *), 1);
if (!os_getenv(LISTEN_ADDRESS_ENV_VAR)) {
char *listen_address = (char *)vim_tempname();
os_setenv(LISTEN_ADDRESS_ENV_VAR, listen_address, 1);
xfree(listen_address);
bool must_free = false;
const char *listen_address = os_getenv(LISTEN_ADDRESS_ENV_VAR);
if (listen_address == NULL || *listen_address == NUL) {
must_free = true;
listen_address = (char *)vim_tempname();
}
return server_start((char *)os_getenv(LISTEN_ADDRESS_ENV_VAR)) == 0;
bool ok = (server_start(listen_address) == 0);
if (must_free) {
xfree((char *) listen_address);
}
return ok;
}
/// Retrieve the file handle from a server.
@@ -199,6 +204,12 @@ int server_start(const char *endpoint)
return result;
}
// Update $NVIM_LISTEN_ADDRESS, if not set.
const char *listen_address = os_getenv(LISTEN_ADDRESS_ENV_VAR);
if (listen_address == NULL || *listen_address == NUL) {
os_setenv(LISTEN_ADDRESS_ENV_VAR, addr, 1);
}
server->type = server_type;
// Add the server to the list.
@@ -232,6 +243,12 @@ void server_stop(char *endpoint)
return;
}
// If we are invalidating the listen address, unset it.
const char *listen_address = os_getenv(LISTEN_ADDRESS_ENV_VAR);
if (listen_address && strcmp(addr, listen_address) == 0) {
os_unsetenv(LISTEN_ADDRESS_ENV_VAR);
}
uv_close(server_handle(server), free_server);
// Remove this server from the list by swapping it with the last item.
@@ -242,6 +259,22 @@ void server_stop(char *endpoint)
servers.ga_len--;
}
/// Returns an allocated array of server addresses.
/// @param[out] size The size of the returned array.
char **server_address_list(size_t *size)
FUNC_ATTR_NONNULL_ALL
{
if ((*size = (size_t) servers.ga_len) == 0) {
return NULL;
}
char **addrs = xcalloc((size_t) servers.ga_len, sizeof(const char **));
for (int i = 0; i < servers.ga_len; i++) {
addrs[i] = xstrdup(((Server **)servers.ga_data)[i]->addr);
}
return addrs;
}
static void connection_cb(uv_stream_t *server, int status)
{
int result;