static int send_request(const char *socket, const struct strbuf *out)
{
int got_data = 0;
int fd = unix_stream_connect(socket);
if (fd < 0)
return -1;
if (write_in_full(fd, out->buf, out->len) < 0)
die_errno("unable to write to cache daemon");
shutdown(fd, SHUT_WR);
while (1) {
char in[1024];
int r;
r = read_in_full(fd, in, sizeof(in));
if (r == 0)
break;
if (r < 0)
die_errno("read error from cache daemon");
write_or_die(1, in, r);
got_data = 1;
}
return got_data;
}
static struct watchman_connection *
watchman_sock_connect(const char *sockname, struct timeval timeout, struct watchman_error *error)
{
use_bser_encoding = getenv("LIBWATCHMAN_USE_JSON_PROTOCOL") == NULL;
if (getenv("LIBWATCHMAN_TRACE_WATCHMAN") != NULL) {
fprintf(stderr, "Using bser encoding: %s\n", use_bser_encoding ? "yes" : "no");
}
int fd;
error->message = NULL;
fd = unix_stream_connect(sockname, error);
if (fd < 0 && !error->message) {
watchman_err(error, WATCHMAN_ERR_CONNECT, "Connect error %s",
strerror(errno));
return NULL;
}
if (setsockopt(fd, SOL_SOCKET, SO_RCVTIMEO, &timeout, sizeof(timeout))) {
watchman_err(error, WATCHMAN_ERR_CONNECT, "Failed to set timeout %s",
strerror(errno));
return NULL;
}
if (setsockopt(fd, SOL_SOCKET, SO_SNDTIMEO, &timeout, sizeof(timeout))) {
watchman_err(error, WATCHMAN_ERR_CONNECT, "Failed to set timeout %s",
strerror(errno));
return NULL;
}
FILE *sockfp = fdopen(fd, "r+");
if (!sockfp) {
close(fd);
watchman_err(error, WATCHMAN_ERR_OTHER,
"Failed to connect to watchman socket %s: %s.",
sockname, strerror(errno));
return NULL;
}
setlinebuf(sockfp);
struct watchman_connection *conn = malloc(sizeof(*conn));
conn->fp = sockfp;
return conn;
}