* Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
*/
-#define _GNU_SOURCE
+#define _LGPL_SOURCE
#include <assert.h>
#include <limits.h>
#include <stdio.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
-#include <time.h>
+#include <common/compat/time.h>
#include <poll.h>
#include <common/common.h>
+#include <common/time.h>
#include "inet.h"
-#define MSEC_PER_SEC 1000
-#define NSEC_PER_MSEC 1000000
#define RECONNECT_DELAY 200 /* ms */
/*
LTTNG_HIDDEN
int lttcomm_bind_inet_sock(struct lttcomm_sock *sock)
{
- int ret;
-
- ret = bind(sock->fd, &sock->sockaddr.addr.sin,
+ return bind(sock->fd,
+ (const struct sockaddr *) &sock->sockaddr.addr.sin,
sizeof(sock->sockaddr.addr.sin));
- if (ret < 0) {
- PERROR("bind inet");
- }
-
- return ret;
}
static
return -1;
}
- ret = clock_gettime(CLOCK_MONOTONIC, &orig_time);
+ ret = lttng_clock_gettime(CLOCK_MONOTONIC, &orig_time);
if (ret == -1) {
PERROR("clock_gettime");
return -1;
goto success;
}
+ DBG("Asynchronous connect for sock %d, performing polling with"
+ " timeout: %lums", sock->fd, timeout);
/*
* Perform poll loop following EINPROGRESS recommendation from
* connect(2) man page.
ret = getsockopt(sock->fd, SOL_SOCKET,
SO_ERROR, &optval, &optval_len);
if (ret) {
+ PERROR("getsockopt");
goto error;
}
if (!optval) {
connect_ret = 0;
goto success;
} else {
+ /* Get actual connect() errno from opt_val */
+ errno = optval;
goto error;
}
}
/* ret == 0: timeout */
- ret = clock_gettime(CLOCK_MONOTONIC, &cur_time);
+ ret = lttng_clock_gettime(CLOCK_MONOTONIC, &cur_time);
if (ret == -1) {
PERROR("clock_gettime");
connect_ret = ret;
int new_fd;
socklen_t len;
struct lttcomm_sock *new_sock;
+ unsigned long timeout;
if (sock->proto == LTTCOMM_SOCK_UDP) {
/*
PERROR("accept inet");
goto error;
}
+ timeout = lttcomm_get_network_timeout();
+ if (timeout) {
+ int ret;
+
+ ret = lttcomm_setsockopt_rcv_timeout(new_fd, timeout);
+ if (ret) {
+ goto error_close;
+ }
+ ret = lttcomm_setsockopt_snd_timeout(new_fd, timeout);
+ if (ret) {
+ goto error_close;
+ }
+ }
new_sock->fd = new_fd;
new_sock->ops = &inet_ops;
end:
return new_sock;
+error_close:
+ if (close(new_fd) < 0) {
+ PERROR("accept inet close fd");
+ }
+
error:
free(new_sock);
return NULL;
len_last = iov[0].iov_len;
ret = recvmsg(sock->fd, &msg, flags);
if (ret > 0) {
+ if (flags & MSG_DONTWAIT) {
+ goto end;
+ }
iov[0].iov_base += ret;
iov[0].iov_len -= ret;
assert(ret <= len_last);
}
} while ((ret > 0 && ret < len_last) || (ret < 0 && errno == EINTR));
+
if (ret < 0) {
PERROR("recvmsg inet");
} else if (ret > 0) {
ret = len;
}
/* Else ret = 0 meaning an orderly shutdown. */
-
+end:
return ret;
}
* Return the size of sent data.
*/
LTTNG_HIDDEN
-ssize_t lttcomm_sendmsg_inet_sock(struct lttcomm_sock *sock, void *buf,
+ssize_t lttcomm_sendmsg_inet_sock(struct lttcomm_sock *sock, const void *buf,
size_t len, int flags)
{
struct msghdr msg;
memset(&msg, 0, sizeof(msg));
- iov[0].iov_base = buf;
+ iov[0].iov_base = (void *) buf;
iov[0].iov_len = len;
msg.msg_iov = iov;
msg.msg_iovlen = 1;
static unsigned long read_proc_value(const char *path)
{
int ret, fd;
+ ssize_t size_ret;
long r_val;
unsigned long val = 0;
char buf[64];
goto error;
}
- ret = read(fd, buf, sizeof(buf));
- if (ret < 0) {
+ size_ret = lttng_read(fd, buf, sizeof(buf));
+ /*
+ * Allow reading a file smaller than buf, but keep space for
+ * final \0.
+ */
+ if (size_ret < 0 || size_ret >= sizeof(buf)) {
PERROR("read proc failed");
goto error_close;
}
+ buf[size_ret] = '\0';
errno = 0;
r_val = strtol(buf, NULL, 10);
LTTNG_HIDDEN
void lttcomm_inet_init(void)
{
- unsigned long syn_retries, fin_timeout, syn_timeout;
+ unsigned long syn_retries, fin_timeout, syn_timeout, env;
+
+ env = lttcomm_get_network_timeout();
+ if (env) {
+ lttcomm_inet_tcp_timeout = env;
+ goto end;
+ }
/* Assign default value and see if we can change it. */
lttcomm_inet_tcp_timeout = DEFAULT_INET_TCP_TIMEOUT;
max_t(unsigned long, syn_timeout, fin_timeout),
lttcomm_inet_tcp_timeout);
+end:
DBG("TCP inet operation timeout set to %lu sec", lttcomm_inet_tcp_timeout);
}